SHARP AL1655, AL1651, AL1661 Service Manual

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(AL-1651CS)

SERVICE MANUAL

CODE : 00ZAL1651CS1E

DIGITAL MULTIFUNCTIONAL SYSTEM

MODEL

CONTENTS

[ 1 ] GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

[ 2 ] SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

[ 3 ] CONSUMABLE PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

[ 4 ] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . 4 - 1

[ 5 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 5 - 1

[ 6 ] COPY PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1

[ 7 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1

[ 8 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1

[ 9 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1

[10] TEST COMMAND, TROUBLE CODES. . . . . . . . . . . . . . . . . . . . 10 - 1

AL-1651CS

[11] USER PROGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1

[12] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 1

[13] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 1

[14] FIRMWARE DOWNLOAD PROCEDURES. . . . . . . . . . . . . . . . . 14 - 1

Parts marked with “ ” are important for maintaining the safety of the machine. Be sure to replace these parts with the replacement parts specified to maintain the safety and performance of the machine.

This document has been published to be used

SHARP CORPORATION

for after sales service only. The contents are subject to change without notice.

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CAUTION

This product is a class 1 laser product that complies with 21CFR 1040 of the CDRH standard and IEC825. This means that this machine does not produce hazardous laser radiation. The use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved on the eye’s retina, there is the danger of spot damage to the retina.

The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of servicing.

1) When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as a unit, not as individual parts.

2) Do not look into the machine with the main switch turned on after removing the developer unit, toner cartridge, and drum cartridge.

3) Do not look into the laser beam exposure slit of the laser optical unit with the connector connected when removing and installing the optical system.

4) The middle frame contains the safety interlock switch.

Do not defeat the safety interlock by inserting wedges or other items into the switch slot.

LASER WAVE – LENGTH : 770 ~ 795nm Pulse times : 11.82µs/7mm Out put power : 0.15mW

± 0.01mW

CAUTION

INVISIBLE LASER RADIATION,

WHEN OPEN AND INTERLOCKS DEFEATED.

AVOID EXPOSURE TO BEAM.

VORSICHT

UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEÖFFNET UND SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.

VARO !

AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE ÄLÄ KATSO SÄTEESEEN.

ADVARSEL

USYNLIG LASERSTRÅLNING VED ÅBNING, NÅR SIKKERHEDSBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLNING.

VARNING !

OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN. – STRÅLEN ÄR FARLIG.

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At the production line, the output power of the scanner unit is adjusted to 0.57 MILLI-WATT PLUS 20 PCTS and is maintained constant by the operation of the Automatic Power Control (APC). Even if the APC circuit fails in operation for some reason, the maximum output power will only be 15 MILLI-WATT 0.1 MICRO-SEC. Giving and accessible emission level of 42 MICRO-WATT which is still-less than the limit of CLASS-1 laser product.

Caution

This product contains a low power laser device. To ensure continued safety do not remove any cover or attempt to gain access to the inside of the product. Refer all servicing to qualified personnel.

The foregoing is applicable only to the 220V model, 230V model and 240V model.

VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN I DENNA BRUKSANVISNING SPECIFICERATS, KAN ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR LASERKLASS 1.

LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT

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[1] GENERAL

1. Major functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2. Note for servicing and handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[2] SPECIFICATIONS

1. Basic Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2. Operation specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

3. Copy performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

4. SPLC (JBIG GDI) printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

5. Scan function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

6. RSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

[3] CONSUMABLE PARTS

1. Supply system table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

2. Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3. Production control number(lot No.) identification . . . . . . . . . . . . . . . . . . . . . 3-2

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

2. Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

3. Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4. Motors and solenoids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

5. Sensors and switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

6. PWB unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

7. Cross sectional view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

[5] UNPACKING AND INSTALLATION

1. Copier installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

2. Cautions on handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

3. Checking packed components and accessories . . . . . . . . . . . . . . . . . . . . . 5-1

4. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5. Removing protective packing materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

6. Installing the TD cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

7. Loading the paper tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

8. Power to copier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

9. Software for AL-1651CS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

A. Before installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

B. Installing the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

C. Setting up button manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

10. Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

A. USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

B. RJ45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

11. Moving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

[6] COPY PROCESS

1. Functional diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

2. Outline of print process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

3. Actual print process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

[7] OPERATIONAL DESCRIPTIONS

1. Outline of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

2. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

A. Scanner unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

B. Optical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

C. Drive system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

3. Laser unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

A. Basic structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

B. Laser beam path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

C. Composition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

4. Fuser section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

A. General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

5. Paper feed section and paper transport section. . . . . . . . . . . . . . . . . . . . . . 7-4

A. Paper transport path and general operations . . . . . . . . . . . . . . . . . . . . 7-4

6. Process unit new drum detection mechanism . . . . . . . . . . . . . . . . . . . . . . . 7-7

7. RSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

A. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

B. Document transport path and basic composition. . . . . . . . . . . . . . . . . . 7-7

C. Operational descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

D. Cases where a document jam is caused. . . . . . . . . . . . . . . . . . . . . . . . 7-8

E. RSPF (SPF) open/close detection (book document detection) . . . . . . . 7-8

8. D-D (Duplex to Duplex) mode paper/document transport (Duplex model). . 7-8

A. Initial state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

B. Front copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

C. Back copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

9. Shifter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

[8] DISASSEMBLY AND ASSEMBLY

1. High voltage section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

A. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

B. Disassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

D. Charger wire cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

E. Charger wire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

2. Operation panel section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

A. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

B. Disassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

3. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

A. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

B. Disassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

4. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

A. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

B. Disassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

5. Tray paper feed/transport section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

A. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

B. Disassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

CONTENTS

[9] ADJUSTMENTS

[10] TEST COMMAND, TROUBLE CODES

[11] USER PROGRAM

[12] ELECTRICAL SECTION

[13] CIRCUIT DIAGRAM

[14] FIRMWARE DOWNLOAD PROCEDURES

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12

6. Manual paper feed section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12

A. List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

B. Disassembly procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

D. Pressure plate holder attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

7. Rear frame section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

A. List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14

B. Disassembly procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

8. Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

A. List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

B. Disassembly procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

C. Assembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

9. Duplex motor section (RSPF model only) . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

A. Remove the rear cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

B. Remove the main PWB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

C. Remove the Duplex motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-16

10. Reverse roller section (RSPF model only) . . . . . . . . . . . . . . . . . . . . . . . . .8-16

A. Remove the reverse unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-16

B. Remove the reverse roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-16

11. RSPF section (RSPF model only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-17

A. RSPF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-17

B. Intermediate tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-17

C. Upper cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-17

D. Pickup unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-17

E. Upper cover of the pickup unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-18

F. Sensor PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-18

G. Pickup solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-18

H. Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-18

I. Manual paper feed roller, pickup roller . . . . . . . . . . . . . . . . . . . . . . . . .8-19

J. Transport unit removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-19

K. Belt 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-20

L. Belt 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-20

M. SPF motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-20

N. Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-20

O. Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-20

P. Paper supply roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-21

Q. Paper entry sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-21

R. Transport roller 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-21

S. Paper exit roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-22

T. Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-23

1. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

A. Copy magnification ratio adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

B. Image position adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2

2. Copy density adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3

A. Copy density adjustment timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3

B. Note for copy density adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3

C. Necessary tool for copy density adjustment . . . . . . . . . . . . . . . . . . . . . .9-4

D. Features of copy density adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4

E. Copy density adjustment procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4

3. High voltage adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5

A. Main charger (Grid bias) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5

B. DV bias check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5

4. Duplex adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5

A. Adjusting the paper reverse position in memory for duplex copying . . . .9-5

B. Adjusting trailing edge void in duplex copy mode . . . . . . . . . . . . . . . . . .9-6

5. SPF (RSPF) scan position automatic adjustment . . . . . . . . . . . . . . . . . . . . .9-7

6. RSPF (SPF) mode sub scanning direction magnification ratio adjustment . .9-7

7. Automatic black level correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8

1. Entering the test command mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

2. Key rule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

3. List of test commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

4. Descriptions of various test commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2

5. Trouble codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-27

A. Trouble codes list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-27

B. Details of trouble codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-27

1. User programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1

A. Copy mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1

B. Print mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-2

2. Selecting a setting for a user program . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-2

1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1

A. Overall block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1

2. Circuit descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-2

A. Main PWB (MCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-2

B. DC power circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-11

1. MCU PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-1

2. OPERATION PWB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-26

3. NIC PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-29

4. POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-33

5. ACTUAL WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-35

1. Download procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-1

2. Version acquisition procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-2

3. EEPROM data acquisition procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-3

4. Serial number setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-4

5. Installing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-4

Page 5

[1] GENERAL

1. Major functions

Configurations

Item CPM /

Model LT A 4 AL-1651CS 16 15 MB ✕✕ ❍ ❍ ✕ ❍ ❍ ❍ ❍ ✕ ❍ ✕ ❍

PPM

SB/MB2

Tray

SPF R-SPF

Descriptions of items

CPM: Copy speed (Copies Per Minute) SB/MB: SB = Manual feed single bypass, MB = Manual feed multi bypass 2 tray: Second cassette unit SPF: Original feed unit R-SPF: Duplex original feed unit Color scanner: Color scanner function GDI printer: GDI printer function with USB

SPLC: SPLC printer function E-SORT: Electrical sort

Duplex: Auto duplex copy function Shifter: Job separator function FAX: FAX function Sharpdesk: Scanner utilities IEEE1284: Interface port (parallel) USB: Interface port (USB) RJ45: Interface port (Network) External NIC: Interface port (Network)

Descriptions of table

❍: Standard provision ✕: No function or no option available

Opt: Option

Color

Scanner

(push)

GDI

SPLC E-SORT Duplex Shifter FAX

printer

Sharp

desk

IEEE 1284

USB RJ45

(2.0)❍print only

External

NIC

(AL-1651CS)

2. Note for servicing and handling

When the main unit power is repeatedly turned OFF/ON rapidly (for about 1sec), the IC (OA982) on the MCU PWB may malfunction to cause an error (E1-00 Communication error), which does not boot the machine. In case of this error, the blank display is kept for several tens seconds and then "E100" is displayed on the panel display.

Turn off the power and keep it for more than 10sec. Then turn on the power. When the machine is booted.: There is no problem in the MCU PWB. When the machine is not booted.: The MCU PWB trouble

AL-1651CS GENERAL 1 - 1

Page 6

[2] SPECIFICATIONS

1. Basic Specifications

Item

Type Desktop Copy system Dry, electrostatic Segment (class) Digital personal copier Copier dimensions 20.4" (W) x 19.8" (D) x 15.0" (H) (518mm (W) x 503mm (D) x 380mm (H)) Weight (Approximately) 44.1 lbs. (20kg) Not includes toner cartridge

2. Operation specifications

Section, item Details

Paper feed section

Paper exit section Exit way Face down

Originals Original set Center Registration (left edge)

Optical section

Image forming Photoconductor type OPC (30ø)

Paper feed system 1 tray (250 sheets) + multi bypass (50 sheets) AB system Tray paper feed

section

Multi bypass paper feed section

Inch system Tray paper feed

section

Multi bypass paper feed section

Capacity of output tray 200 sheets

Max. original size A4 (8-1/2" x 14") Original kinds sheet, book Original size detection None

Scanning section Scanning system 3 CCDs (RGB) sensor scanning by lighting white lamp

CCD sensor Resolution 600 dpi Lighting lamp Type CCFL

Output data R, G, B 1 or 8 bits/pixel / A/D 16bit

Writing section Writing system Writing to OPC drum by the semiconductor laser

Laser unit Resolution 600 dpi

Charger Charging system Saw -tooth charging with a grid, / (-) scorotron discharge

Developing Developing system Dry, 2-component magnetic brush development system Cleaning Cleaning system Counter blade system (Counter to rotation)

Paper size A4, B5, A5, 16K (Landscape) Paper weight 56 - 80g/m Paper feed capacity 250 sheets Kinds Standard paper, specified paper, recycled paper Remark User adjustment of front paper guide available Paper size A4, B5, A5, B6, A6 (Post card), 16K (Landscape) Paper weight 52 - 128g/m Paper feed capacity 50 sheets Kinds Standard paper, specified paper, recycled paper, envelope,

OHP, Label (Single copy) Remark User adjustment of side paper guide available Paper size 8-1/2" x 14", 8-1/2 x 11", 8-1/2" x 5-1/2" (Landscape) Paper weight 15 - 21 lbs. Paper feed capacity 250 sheets Kinds Standard paper, specified paper, recycled paper Remark User adjustment of front paper guide available Paper size 8-1/2" x 14", 8-1/2 x 11", 8-1/2" x 5-1/2", 3-1/2" x 5-1/2"

(Landscape) Paper weight 14 - 34.5 lbs. Paper feed capacity 50 sheets Kinds Standard paper, specified paper, recycled paper, OHP, Label,

Envelop (Single copy) Remark User adjustment of side paper guide available

Voltage 560Vrms Power consumption 2.8W

Life 18k

Transfer system (+) DC scorotron system Separation system (-) DC scorotron system

(15 - 21 lbs.)

(14 - 34.5 lbs.)

AL-1651CS SPECIFICATIONS 2 - 1

Page 7

Section, item Details

Fusing section Fusing system Heat roller system

Upper heat roller type Teflon roller Lower heat roller type Silicon rubber roller Heater lamp type Halogen lamp

Voltage 120V Power consumption 800W

Electrical section Power source Voltage 120V

Frequency 60Hz Rated current 8A

Power consumption Max. Less than 1000W

Average (during copying) 350 Wh/H *1) Average (stand-by) 80Wh/H *1) Pre-heat mode 25Wh/H *1) Auto power shut-off mode 8.8Wh/H *1)

*1) May fluctuate due to environmental conditions and the input voltage.

3. Copy performance

Section, item Details

Copy magnification Fixed magnification

ratios

Zooming

magnification ratios Manual steps (text, photo) 5 steps Copy speed First copy time Tray paper feed 9.6 sec. (Pre-heat mode:25 sec. / Auto power-shut-off mode : 40 sec.)

AB system A4 (Landscape)

AB system B5 (Landscape)

Inch system 8-1/2" x 14" (Landscape)

Inch system 8-1/2" x 11" (Landscape)

Max. continuous copy quantity 99 Void Void area leading edge 1 - 4mm

Warm-up time 0 sec. Power save mode reset time 0 sec. Paper jam recovery time 0 sec.

Copy speed (CPM) Same size 15

Enlargement 15 Reduction 15

Copy speed (CPM) Same size 15

Enlargement 15 Reduction 15

Copy speed (CPM) Same size 12

Enlargement 12 Reduction 12

Copy speed (CPM) Same size 16

Enlargement 16 Reduction 16

Trailing edge 4mm or less, 6mm or less (Duplex copying/both image) Side void area 0.5mm or more (per side)

Image loss leading edge Same size: 3.0mm or less (OC) / 4.0mm or less (SPF/R-SPF/Duplex)

4 Reduction + 3 Enlargement (AB system : 25, 50, 70, 86, 100, 141, 200, 400%) (Inch system : 25, 50, 64, 78, 100, 129, 200, 400%)

OC: 25 - 400%, RSPF 50 - 200% (376 steps in 1% increments)

A4 or Letter/100%/Auto Exposure

4.5mm or less (total of both sides)

Enlarge: 1.5mm or less (OC) / 3.0mm or less (SPF/R-SPF/Duplex) Reduction (50%): 6.0mm or less (OC) / 8.0mm or less (SPF/R-SPF/Duplex)

AL-1651CS SPECIFICATIONS 2 - 2

Page 8

4. SPLC (JBIG GDI) printer

Print speed Max. 15ppm (A4 / with ROPM) / 16ppm (Letter / with ROPM) First print time 9.6 sec. (without data transfer time) Duplex Yes ROPM Yes CPU None Memory Share the memory with E-SORT function Interface RJ45 (10 base) / USB 2.0 Network Internal NIC Emulation SPLC (JBIG GDI) MIB support No Resolution 600dpi *1 Supported OS Win 95 / 98 / Me / NT 4.0 / 2000 / XP WHQL support Yes *2 Application Status window

*1: Engine Resolution *2: Running change

5. Scan function

Type Flat Bed Color Scanner Scanning system Document glass/RSPF Light source 3 CCDs (RGB) sensor scanning by lighting white lamp (2 pcs of CCFL) Resolution Optical: 600 x 1200dpi

Setting range: 50 - 9600dpi (Preview resolution is fixed at 75dpi) Originals Sheet type / Book type Output data R, G, B 1 or 8 bits/pixel / A/D 16bit Scan range OC / RSPF: 8.5" (297mm) (L) x 14" (431mm) (W)

Original position: Platen: Left center / SPF: Right center Scan speed OC / SPF: Max. 2.88ms/line (Color/Gray scale), Max. 0.96 ms/line (B & W) Protocol TWAIN / WIA (Only XP) / STI Support file format RAW / JPEG Interface USB2.0 Scanner utility Button Manager / Sharpdesk Scan key/lamp Yes Duplex scan No Supported OS Win 98 / Me / 2000 / XP Void area No (User settable by PC) WHQL supported Yes *1

*1: Running change

6. RSPF

Original capacity 30 sheets (52 to 90g/m Original size A4 to A5/10" x 14" to 5-1/2" x 8-1/2" Original replacement speed 12CPM (A4/8-1/2" x 11"Landscape) Job speed (Tray1,Landscape) Single copy S to S 12CPM

S to D 5.6CPM D to S 5.5CPM D to D 5.2CPM

Multi copy S to S 16CPM

D to S 16CPM Original placement Face up Original weight 52 to 90g/m Mixed feeding No Original which cannot Thermal papers, originals with punch holes for files, be used folded paper, transparent originals

such as OHP films, stapled or clip used originals with cover up liquid used, Originals with tape

sealed, originals with high level frictional coefficient such as photos or catalogs.

(14 - 23.9lbs.)

AL-1651CS SPECIFICATIONS 2 - 3

) (14 to 23.9 lbs.)

Page 9

[3] CONSUMABLE PARTS

1. Supply system table

Common to all destinations

No. Name Content Life Product name Package

1 Develop cartridge (Black) x 1

(Except Europe)

2 Drum cartridge Drum cartridge 18K AL-100DR 5

2. Environmental

The environmental conditions for assuring the copy quality and the machine operations are as follows:

Toner/developer cartridge x 1 (Toner: Net weight 124g) (Developer: Net weight 190g)4K(5% document)

AL-110TD 5

(1) Normal operating condition

Temperature:20 - 25°C Humidity:65 ± 5%RH

(2) Acceptable operating condition

Humidity (RH)

85%

60%

20%

10˚C 30˚C 35˚C

(3) Optical condition

Humidity (RH)

90%

60%

(4) Supply storage condition

Humidity (RH)

90%

20%

–5˚C45˚C

15%

–25˚C30˚C40˚C

AL-1651CS CONSUMABLE PARTS 3 - 1

Page 10

3. Production control number(lot No.) identification

Production month Production day Destination code (Dealer, distributor, OEM, etc.) Production place (SOCC: Fixed to B.) End digit of year Version No.

* Destination

Division No.

EX Destination A same pack G

B same pack H

Option Destination A P

The label on the drum cartridge shows the date of production. (SOCC production)

Production month Production day Destination code (Dealer, distributor, OEM, etc.) Production place (SOCC: Fixed to B.) End digit of year Version No.

Production control label attachment position

Production control label attachment position(*1)

Division No. Ex production 1 Option 2 Same pack 3

*1 The production control label is not attached to the cartridge of a

China product.

X000119Ver.A 1

Production month (1 - 9 = Jan. - Sep. 0 = Oct. X = Nov. Y = Dec.) Serial number of month Fixed to 1. Pack division (See table below) End digit of year Version No.

AL-1651CS CONSUMABLE PARTS 3 - 2

Page 11

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance

RSPF

Interface

1 2

3 4

1 Document glass 2 Operation panel 3 Front cover 4 Paper tray 5 Side cover 6 Side cover open button

7 Bypass tray paper guides 8 Bypass tray 9 Reversing tray 10 Original guides 11 Document feeder cover 12 Document feeder tray 13 Exit area 14 Paper output tray 15 Paper output tray extension 16 Power switch 17 Handles 18 Power cord 19 USB port 20 LAN port 21 Paper holding arm

5 6 7

14 15

16 17

2. Internal

TD cartridge Drum cartridge

1 Side cover 2 Fusing unit release lever 3 Transfer charger

4 Charger cleaner 5 Front cover

3 4

AL-1651CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 1

Page 12

3. Operation panel

Display

READY TO COPY. 100% 8.5x11 0

12345

AL-1651CS

6 7 8 9 10 11 12 13 14 15 16 17

18 19

1 [MODE SELECT] key / Mode indicators

Press this key to select the mode. The indicator of the selected mode lights (copy, printer, scanner).

3 Numeric keys

Use these to enter the number of copies and other numerical settings. The keys can also be used to select items in function setting menus.

5 Power save indicator

This lights up when the power save function is activated.

7 Error indicator

This lights steadily or blinks when a paper misfeed or other error occurs.

9 Tray location indicator

Indicates the selected paper tray. The indicator blinks when the tray is out of paper or is not closed.

11 [2-SIDED COPY] key

Use to copy both sides of an original.

13 [ ] key ( ), [ ] key ( ), [ENTER] key

Press the [ ] key ( ) or [ ] key ( ) to select an item in a function setting menu. Press the [ENTER] key to enter a selection.

15 [COPY RATIO] key

Press to select an enlargement or reduction ratio.

To select a preset ratio setting, press the [COPY RATIO] key and select the desired preset ratio. To select a ratio that is not preset, press the [COPY RATIO] key, select the preset ratio that is closest to the desired ratio, and then press the [ ] key ( ) or

] key ( ) to increase or decrease the ratio in increments

[

of 1%.

17 [CLEAR ALL] key ( )

This returns all functions to the default settings. When pressed in a setting menu, this returns the settings and display to the initial state.

Shows the selected paper size.

A checkmark " " appears when the exposure has been

changed, or when two-sided copying, sort, 2 IN 1, or margin shift is selected.

2 Display

This shows messages indicating the machine status and any problems that occur, as well as user programs and function setting menus.

4 [CLEAR] key ( )

Use this to clear the set number of copies, as well as cancel a job that is in progress. When a setting menu appears, use this key to move back to the previous menu level.

6 RSPF indicator

This lights up when an original is placed in the RSPF.

8 [TRAY SELECT] key ( )

Use to select the paper tray that has the desired paper for copying.

10 [MENU] key

Press this key to select the paper size for copying, to configure a user program or to display the total count.

12 [E-SORT/SP.FUN] key

Press to select the sort function, 2 in 1 copy function, or margin shift function.

14 [EXPOSURE] key

Use to switch from auto exposure adjustment to text mode or photo mode.

16 [START] key ( ) / Ready indicator

The ready indicator lights up when copying or scanning is possible. To begin copying, press the [START] key ( ).

The [START] key ( ) is also pressed to return to normal operation from auto power shut-off mode.

18 Shows the current copy ratio.

Shows the number of copies that has been entered with the

numeric keys.

AL-1651CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 2

Page 13

4. Motors and solenoids

No. Part name Control signal Function / Operation

1 Main motor MM Drives the copier.

2 Scanner motor MRMT Drives the optical mirror base (scanner unit).

3 Toner motor TM Supplies toner.

4 Cooling fan motor VFM Cools the optical section.

5 Resist roller solenoid RRS Resist roller rotation control solenoid

6 Paper feed solenoid CPFS1 Cassette Paper feed solenoid 1

7 Multi paper feed solenoid MPFS Multi manual pages feed solenoid

8 SPF motor SPFM Drives the single pass feeder

9 Duplex motor DMT Devices the duplex paper transport section 10 Original feed solenoid SPUS Original pick up solenoid 11 SPF paper feed solenoid SPFS Original feed solenoid 12 SPF gate solenoid SGS Controls the document reverse gate. 13 Shifter motor SFTM Drives the shifter.

AL-1651CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 3

Page 14

5. Sensors and switches

No. Name Signal Type Function Output

1 Scanner unit home position

sensor 2 POD sensor POD Transmission sensor Paper exit detection "H" at paper pass 3 PPD2 sensor PPD2 Transmission sensor Paper transport detection 2 "L" at paper pass 4 Cassette detection switch CED1 Micro-switch Cassette installation detection "H" at cassette insertion 5 PPD1 sensor PPD1 Transmission sensor Paper transport detection 1 "L" at paper pass 6 Door switch DSW Micro-switch Door open/close detection

7 Drum reset switch DRST Micro-switch New drum detection switch Instantaneously "H" at insertion of

8 SPF sensor SPID/

9 SPPD sensor SPPD Transmission sensor Paper transport detection "L" at paper pass

MHPS Transmission sensor Scanner unit home position detection "H" at home position

1 or 0V of 24V at door open

(safety switch for 24V)

new drum

SD SW

Transmission sensor Paper entry detection

Cover open/close detection

"L" at paper pass

AL-1651CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 4

Page 15

6. PWB unit

No. Name Function

1 Exposure lamp inverter PWB Exposure lamp (CCFL) control 2 Main PWB (MCU) Copier control 3 Operation PWB Operation input/display 4 Power PWB AC power input, DC voltage control, High voltage control 5 CCD sensor PWB For image scanning 6 LSU motor PWB For polygon motor drive (In the LSU) 7 TCS PWB For toner sensor control 8 LSU PWB For laser control (In the LSU) 9 NIC PWB 10 BASE-T Network I/F

AL-1651CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5

Page 16

7. Cross sectional view

1 4

3 5 18 15

16 17

111214 13

No. Part name Function and operation

1 Scanner unit Illuminates the original with the copy lamp and passes the reflected light to the lens unit(CCD). 2 Exposure lamp Exposure lamp (CCFL) Illuminates original 3 LSU (Laser unit) Converts the original image signal into laser beams and writes onto the drum. 4 Paper exit roller Roller for paper exit 5 Main charger Provides negative charges evenly to the drum surface. 6 Heat roller Fuses toner on the paper. (Teflon roller) 7 Pressure roller Fuses toner on the paper. (Silicon rubber roller) 8 Drum Forms images. 9 Transfer unit Transfers images onto the drum.

10 Pickup roller Picks up the manual feed paper. (In multi feed only) 11 Manual paper feed tray Tray for manual feed paper 12 Manual paper feed roller Transport the paper from the manual paper feed port. 13 PS roller unit Takes synchronization between the lead edge and the rear edge of the paper. 14 Paper feed roller Picks up a sheet of paper from the cassette. 15 Pickup roller Picks up documents. 16 Separation roller Separates documents to feed properly. 17 PS roller Feeds documents to the scanning section. 18 Paper exit roller Discharges documents.

AL-1651CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6

Page 17

[5] UNPACKING AND INSTALLATION

1. Copier installation

Improper installation may damage the copier. Please note the following during initial installation and whenever the copier is moved.

Caution: If the copier is moved from a cool place to a warm place, con-

densation may form inside the copier. Operation in this condition will cause poor copy quality and malfunctions. Leave the copier at room temperature for at least 2 hours before use.

Do not install your copier in areas that are:

• damp, humid, or very dusty

• exposed to direct sunlight

2. Cautions on handling

Be careful in handling the copier as follows to maintain the performance of this copier.

Do not drop the copier, subject it to shock or strike it against any object.

Do not expose the drum cartridge to direct sunlight. Doing so will damage the surface (green portion) of the drum cartridge,

causing poor print quality.

• poorly ventilated

• subject to extreme temperature or humidity changes, e.g., near an

air conditioner or heater.

The copier should be installed near an accessible power outlet for easy connection.

Be sure to connect the power cord only to a power outlet that meets the specified voltage and current requirements.

Also make certain the outlet is properly grounded. Be sure to allow the required space around the machine for servicing

and proper ventilation.

Store spare supplies such as drum cartridges and TD cartridges in a dark place without removing from the package before use.

If they are exposed to direct sunlight, poor print quality may result. Do not touch the surface (green portion) of the drum cartridge. Doing so will damage the surface of the cartridge, causing poor print

quality.

3. Checking packed components and accessories

Open the carton and check if the following components and accessories are included.

Operation manual

Software CD-ROM

(10cm)

8" (20cm)

8"(20cm)

Drum cartridge

(installed in machine)

(10cm)

TD cartridge

AL-1651CS UNPACKING AND INSTALLATION 5 - 1

Page 18

4. Unpacking

Be sure to hold the handles on both sides of the machine to unpack the machine and carry it to the installation location.

5. Removing protective packing materials

1) Remove all pieces of tape shown in the illustration below and then open the RSPF and remove the protective materials. Take out the bag containing the TD cartridge.

2) Remove the CAUTION tape from the front cover and remove the two protective pins from the fusing machine by pulling the strings upward one at a time.

Protective pins

CAUTION tape

3) Press gently on both sides of the front cover to open the cover.

4) Remove the TD cartridge from the bag. Remove the protective paper. Hold the cartridge on both sides and shake it horizontally four or five times. Hold the tab of the protective cover and pull the tab to your side to remove the cover.

2) Release the scan head locking switch.

Grasp here and turn in the direction of the arrow.

Lock Unlock

6. Installing the TD cartridge

1) Open the bypass tray, and then open the side cover.

4 or 5 times

5) While pushing the lock release button, gently insert the TD cartridge until it locks into place.

Lock release button

6) Close the front cover and then the side cover by pressing the round projections near the side cover open button.

Note: When closing the covers, be sure to close the front cover

securely and then close the side cover. If the covers are closed in the wrong order, the covers may be damaged.

7) Ensure that the power switch of the machine is in the OFF position. Plug the other end of the power cord into the nearest outlet.

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7. Loading the paper tray

Note: Make sure that the paper is not torn, is free of dust, and has no

wrinkles or curled edges.

1) Raise the handle of the paper tray and pull the paper tray out until it stops.

2) Remove the pressure plate lock. Rotate the pressure plate lock in the direction of the arrow to remove it while pressing down on the pressure plate of the paper tray.

6) Gently push the paper tray back into the machine. Note:

• If you loaded a different size of paper than was loaded previously in the tray.

• When not using the machine for an extended period, remove all paper from the paper tray and store it in a dry place. If paper is left in the machine for an extended period, the paper will absorb moisture from the air, resulting in paper jams.

3) Store the pressure plate lock which has been removed in step 2. To store the pressure plate lock, rotate the lock to secure it as shown below.

Pressure plate lock

4) Squeeze the lock lever of the front guide and slide the front guide to match the width of the paper, and move the left guide to the appropriate slot as marked on the tray.

Left guide

• The front guide is a slide-type guide. Grasp the locking knob on

the guide and slide the guide to the indicator line of the paper to be loaded.

• The left guide is an insert-type guide. Remove it and then insert it

at the indicator line of the paper to be loaded.

5) Fan the paper and insert it into the tray. Make sure that the edges go under the corner hooks.

Note:

• Do not load paper above the maximum height line ( ).

Exceeding the line will cause a paper misfeed.

• If the paper is not fanned, double-feeds or misfeeds may occur.

• Make sure the stack of paper is straight before loading it. When add-

ing paper, take the remaining paper out and combine it into a single stack with the new paper.

• Make sure that all the paper in the stack is the same size and type.

• When loading paper, ensure that there is no space between the

paper and the guide, and make sure that the guide is not set too narrow and causes the paper to bend. Incorrect loading will cause the paper to skew or misfeed.

Front guide

8. Power to copier

1) Ensure that the power switch of the copier is in the OFF position. Insert the attached power cord into the power cord socket at the rear of the copier.

2) Plug the other end of the power cord into the nearest outlet.

9. Software for AL-1651CS

The CD-ROM that accompanies the machine contains the following software:

MFP driver

Printer driver

The printer driver enables you to use the printer function of the machine.

The printer driver includes the Print Status Window. This is a utility that monitors the machine and informs you of the printing status, the name of the document currently being printed, and error messages.

Please note that the Print Status Window does not operate when the machine is used as a network printer.

Scanner driver (USB only)

The scanner driver allows you to use the scanning function of the machine with TWAIN-compliant and WIA-compliant applications.

Sharpdesk (USB only)

Sharpdesk is an integrated software environment that makes it easy to manage documents and image files, and launch applications.

Button Manager (USB only)

Button Manager allows you to use the scanner menus on the machine to scan a document.

Note: The scanning feature can only be used with computers that are

running Windows 98/Me/2000/XP and are connected to the machine by a USB cable. If you are running Windows 95/NT 4.0 or are connected to the machine by a LAN connection, only the printer function can be used.

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A. Before installation

(1) Hardware and software requirements

Check the following hardware and software requirements in order to install the software.

Computer type IBM PC/AT or compatible computer equipped with a

USB2.0*

Operating

3 *4

system*

Windows 95, Windows 98, Windows Me, Windows NT Workstation 4.0 (ServicePack 5 or later)* Windows 2000 Professional* Professional*

/1.1*2 or 10Base-T LAN port

, Windows XP Home Edition*5

, Windows XP

Display 800 x 600 dots (SVGA) display with 256 colors (or

better)

Hard disk free

150MB or more

space Other hardware

requirements

The machine's USB port will transfer data at the speed specified by

An environment on which any of the operating systems listed above can fully operate

the USB 2.0 (Hi-Speed) only if the Microsoft USB 2.0 driver is preinstalled in the computer, or if the USB 2.0 driver for Windows 2000 Professional/XP that Microsoft provides through its "Windows Update" is installed.

Compatible with Windows 98, Windows Me, Windows 2000 Profes-

sional, Windows XP Professional or Windows XP Home Edition preinstalled model standardly equipped with a USB port.

Printing is not available in MS-DOS mode.

The machine does not support printing from a Macintosh environ-

ment.

Administrator's rights are required to install the software using the

installer.

(2) Installation environment and usable software

The following table shows the drivers and software that can be installed for each version of Windows and port connection method.

MFP Driver

Cable Operating system

Windows 98/Me/

USB

2000/XP

Windows 95/98/Me/

LAN

NT 4.0/2000/XP

Printer

driver

Available

Scanner

driver

*1 Windows 98/Me does not support USB 2.0. A USB 2.0 connection

can be used in Windows 98/Me, however, the performance will be the same as USB 1.1. The print speed based on USB 2.0 specifications can only be attained if your computer is running Windows 2000/XP, you are using a cable that supports USB 2.0 (USB 1.1 or USB 2.0 certified), and the cable is connected to a USB 2.0 port on your computer. If the connection is made through a hub, the hub must support USB 2.0.

The printer driver that is installed will vary depending on the type of

connection between the machine and your computer.

Button

Manager

Sharpdesk

Available

Not Available

B. Installing the software

Note:

• If you need to use a different connection method after installing the software using a USB or network connection, you must first uninstall the software and then install it using the new connection method.

• In the following explanations it is assumed that the mouse is configured for right hand operation.

• The scanner feature only works when using a USB cable.

• If an error message appears, follow the instructions on the screen to

solve the problem. After the problem is solved, the installation procedure will continue. Depending on the problem, you may have to click the "Cancel" button to exit the installer. In this case, reinstall the software from the beginning after solving the problem.

• When installing Sharpdesk, a minimal version of Internet Explorer

5.01 will be installed on your computer if your computer does not currently have Internet Explorer version 4.01 or later.

(1) Using the machine with a USB connection

1) The USB cable must not be connected to the machine. Make sure that the cable is not connected before proceeding.

If the cable is connected, a Plug and Play window will appear. If this happens, click the "Cancel" button to close the window and disconnect the cable.

Note: The cable will be connected in step 15.

2) Insert the CD-ROM into your computer's CD-ROM drive.

3) Click the "start" button, click "My Computer", and then double-click the CD-ROM icon.

In Windows 98/Me/2000, double-click "My Computer", and then double-click the CD-ROM icon.

4) Double-click the "setup" icon.

Note: If the language selection screen appears after you double click

the "setup" icon, select the language that you wish to use and click the "Next" button. (Normally the correct language is selected automatically.)

5) The "SOFTWARE LICENCE" window will appear. Make sure that you understand the contents of the software licence, and then click the "Yes" button.

6) Read the "Readme First" in the "Welcome" window and then click the "Next" button.

7) To install all of the software, click the "Standard" button. To install particular packages, click the "Custom" button. If you selected "Custom", go to step 9.

8) Read the message in the "Welcome" window and then click the "Next" button.

If you selected "Standard" in step 7, installation will begin. Go to step 14.

9) If you clicked the "Custom" button, select the checkboxes of the software packages to be installed and then click the "Next" button.

Click the "Display README" button to show information on packages that are selected.

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10) Check the packages on the screen, and then click the "Start" button.

The software packages to be installed will be displayed on the screen. If an incorrect package is displayed, click the "Back" button and select the correct packages.

11) The files required for installation of the MFP driver are copied (if "MFP Driver" was selected).

Follow the on-screen instructions.

Caution: If you are running Windows 2000/XP and a warning message

appears regarding the Windows logo test or digital signature, be sure to click "Continue Anyway" or "Yes".

When "The installation of the SHARP software is complete" appears, click the "OK" button.

12) Begin the installation of Button Manager (if "Button Manager" was selected).

Follow the on-screen instructions. Click the "Finish" button when the message informs you that setup

is successful. The Sharpdesk installer will start.

13) Begin the installation of Sharpdesk (if "Sharpdesk" was selected). Follow the on-screen instructions. Click the "Finish" button when the message informs you that

Setup is complete.

Caution: In Windows 98/Me/2000, if the following screen appears,

click the "Skip" button or the "Continue" button as appropriate to continue the Sharpdesk installation.

If "Skip" is selected, the Sharpdesk installation will continue without installing Sharpdesk Imaging.

If "Continue" is selected, Sharpdesk Imaging will be installed. If Imaging for Windows is installed on your computer, Sharpdesk

Imaging will overwrite Imaging for Windows.

14) When the "Finish" screen appears, click the "Close" button. Caution: If you are running Windows 2000/XP and a warning message

appears regarding the Windows logo test or digital signature, be sure to click "Continue Anyway" or "Yes".

A message will appear instructing you to connect the machine to your computer. Click the OK button.

Note:

• If this is a "Standard" installation, the "Finish" screen will appear after several minutes.

• After the installation, a message prompting you to restart your computer may appear. In this case, click the "Yes" button to restart your computer.

15) Make sure that the power of the machine is turned on, and then

connect the USB cable. Windows will detect the machine and a Plug and Play screen will

appear.

Caution: If the following message appears on your computer screen,

close it.

A window regarding "HI-SPEED USB Device" will then appear. Close the window.

This message appears when the machine's USB 2.0 mode is not set to "HI-SPEED". For information on switching the USB

2.0 mode.

16) Begin installation of the scanner driver.

"SHARP AL-XXXXCS" will appear in the "Found New Hardware Wizard" dialog box. Select "Install the software automatically (Recommended)" and click the "Next" button. Follow the onscreen instructions.

Caution: If you are running Windows 2000/XP and a warning message

appears regarding the Windows logo test or digital signature, be sure to click "Continue Anyway" or "Yes".

Note: A "USB 2.0 Composite Device" installation window may appear

prior to this procedure. In this case, follow the instructions in the window to install the USB 2.0 Composite Device.

17) Begin installation of the printer driver.

"SHARP AL-XXXXCS" will appear in the "Found New Hardware Wizard" dialog box. Select "Install the software automatically (Recommended)" and click the "Next" button. Follow the onscreen instructions.

Caution: If you are running Windows 2000/XP and a warning message

appears regarding the Windows logo test or digital signature, be sure to click "Continue Anyway" or "Yes".

18) Follow the instructions in the Plug and Play screen that appears in

your version of Windows to begin the installation.

This completes the installation of the software.

• If you installed Button Manager, set up Button Manager as explained in "SETTING UP BUTTON MANAGER".

(2) Connecting a USB cable

Follow the procedure below to connect the machine to your computer. A USB cable for connecting the machine to your computer is not

included with the machine. Please purchase the appropriate cable for your computer.

Caution:

• USB is available with a PC/AT compatible computer that was originally equipped with USB and had Windows 98, Windows Me, Windows 2000 Professional, Windows XP Professional or Windows XP Home Edition preinstalled.

• Do not connect the USB cable before installing the MFP driver. The USB cable should be connected during installation of the MFP driver.

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Note:

• If the machine will be connected using a USB 2.0 port of your computer, please purchase a USB cable that supports USB 2.0.

• The machine's USB port will transfer data at the speed specified by the USB 2.0 (Hi-Speed) only if the Microsoft USB 2.0 driver is preinstalled in the computer, or if the USB 2.0 driver for Windows 2000 Professional/XP that Microsoft provides through its "Windows Update" Web page is installed.

• To obtain the fastest USB 2.0 data transfer speed, "USB2.0 MODE SWITCH" in the machine's user programs must be set to "HISPEED". For more information, see "USER PROGRAMS".

• Use the machine's "HI-SPEED" mode only when using a computer that is running Windows 2000/XP.

• Even when the Microsoft USB 2.0 driver is used, it may not be possible to obtain full USB 2.0 speed if a PC card supporting USB 2.0 is used. To obtain the latest driver (which may enable a higher speed), contact the manufacturer of your PC card.

• Connection is also possible using a USB 1.1 port on your computer. However, the specifications will be USB 1.1 specifications (FullSpeed).

1) Insert the cable into the USB port on the machine.

6) The "SOFTWARE LICENCE" window will appear. Make sure that you understand the contents of the software licence, and then click the "Yes" button.

7) Read the "Readme First" in the "Welcome" window and then click the "Next" button.

Note: To set the IP address of the machine, follow the steps below. If

the machine is already connected to the network and its IP address has been set, go to "LPR (TCP/IP) direct printing".

Set the IP Address

This setting is only required once when using the machine on a network.

8) Click the "Set the IP Address" button.

2) Insert the other end of the cable into your computer's USB port.

(3) Using the machine as a network printer

Note:

• Interface cables for connecting the machine to your computer are not included with the machine. Please purchase the appropriate cable for your computer.

• If you intend to use the machine as a scanner, it must be connected to your computer with a USB interface cable. The scanner function cannot be used if the machine is connected with a LAN cable.

• To install the software using a network connection in Windows 95, Internet Explorer version 4.01 or later must be installed on your computer. If this is not installed, double-click "My Computer" and then double-click the CD-ROM icon. Double-click the "le501" folder, the "EN" folder, and then "ie5setup.exe".

1) Insert the LAN cable into the LAN port on the machine.

Use a network cable that is shielded.

2) Turn on the machine.

3) Insert the CD-ROM into your computer's CD-ROM drive.

4) Click the "start" button, click "My Computer", and then double-click

the CD-ROM icon. In Windows 95/98/Me/NT 4.0/2000, double-click "My Computer",

and then double-click the CD-ROM icon.

5) Double-click the "setup" icon.

Note: If the language selection screen appears after you double click

the "setup" icon, select the language that you wish to use and click the "Next" button. (Normally the correct language is selected automatically.)

9) The printer or printers connected to the network will be detected. Click the printer to be configured (the machine) and click the "Next" button.

Note:

• The "Ethernet Address" is indicated on the left side of the machine

near the LAN port.

• If the machine is used on a different network after the IP address is

set, the machine will not be recognized. Enter the Ethernet Address and click the "Initialize" button to initialize the IP address. Follow the on-screen instructions to click the "OK" button and then the "Search" button.

AL-1651CS UNPACKING AND INSTALLATION 5 - 6

Page 23

10) Enter the IP address, subnet mask, and default gateway. The settings in the above window are examples. Be sure to ask your network administrator for the correct IP

address, subnet mask, and default gateway to be entered.

Note: When "Get IP Address Automatically" is selected, the IP

address may at times change automatically. This will prevent printing. In this event, select "Assign IP Address" and enter the IP address.

11) Click the "Next" button.

12) Click the "Yes" button. Go to step 11.

10) Select "LPR (TCP/IP) direct printing" and click the "Next" button.

11) The printer or printers connected to the network will be detected. Click the printer to be configured (the machine) and click the "Next" button.

LPR (TCP/IP) direct printing

After step 1-7.

8) Click the "Printer Driver" button. If you have not set the IP Address, click the "Set the IP Address"

button in first and go to step 8 on "Connecting a USB cable".

Note: If the machine's IP address cannot be found, make sure the

machine is powered on, make sure the network cable is connected correctly, and then click the "Search" button.

12) In the window for setting the destination print port name, make sure that ":lp" appears at the end of the IP address and click the "Next" button.

Note: Any name can be entered in "Printer Port Name" (maximum of

38 characters).

13) A window appears to let you check your entries. Make sure that the entries are correct and then click the "Finish" button.

If any of the entries are incorrect, click the "Back" button to return to the appropriate window and correct the entry.

9) Read the message in the "Welcome" window and then click the "Next" button.

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14) When the model selection window appears, select the model

name of your machine and click the "Next" button. For the model name of your machine, see the operation panel on

the machine.

Note: A Welcome window may appear before this step. Read the

message in the "Welcome" window and then click the "Next" button.

15) Select whether or not you wish the printer to be your default

printer and click the "Next" button.

Caution: If you are running Windows 2000/XP and a warning message

appears regarding the Windows logo test or digital signature, be sure to click "Continue Anyway" or "Yes".

16) When "This installation of the SHARP software is complete"

appears, click the "OK" button.

17) When the "Finish" screen appears, click the "Close" button.

Note: After the installation, a message prompting you to restart your

computer may appear. In this case, click the "Yes" button to restart your computer.

This completes the installation of the software.

(4) Sharing the printer using windows networking

If the machine will be used as a shared printer on a network, follow these steps to install the printer driver in the client computer.

Note: To configure the appropriate settings in the print server, see the

operation manual or help file of your operating system.

1) Insert the CD-ROM into your computer's CD-ROM drive.

2) Click the "start" button, click "My Computer", and then double-click the CD-ROM icon.

In Windows 95/98/Me/NT 4.0/2000, double-click "My Computer", and then double-click the CD-ROM icon.

3) Double-click the "setup" icon.

Note: If the language selection screen appears after you double click

the "setup" icon, select the language that you wish to use and click the "Next" button. (Normally the correct language is selected automatically.)

4) The "SOFTWARE LICENCE" window will appear. Make sure that you understand the contents of the software licence, and then click the "Yes" button.

5) Click the "Printer Driver" button.

6) Read the message in the "Welcome" window and then click the "Next" button.

7) Select "Shared Printer" and click the "Next" button.

8) For the port to be used, select the machine set as a shared printer, and click the "Next" button.

You can also click the "Add Network Port" button and select the printer to be shared (the machine) by browsing the network in the window that appears.

Note: If the shared printer does not appear in the list, check the

settings in the printer server.

9) When the model selection window appears, select model name of your machine and click the "Next" button.

For the model name of your machine, see the operation panel on the machine.

10) Follow the on-screen instructions.

11) When the "Finish" screen appears, click the "Close" button.

Note: After the installation, a message prompting you to restart your

computer may appear. In this case, click the "Yes" button to restart your computer.

This completes the installation of the software.

C. Setting up button manager

Button Manager is a software program that works with the scanner driver to enable scanning from the machine.

To scan using the machine, Button Manager must be linked with the scan menu on the machine. Follow the steps below to link Button Manager to scanner events.

(1) Windows XP

1) Click the "start" button, click "Control Panel", click "Printers and Other Hardware", and then click "Scanners and Cameras".

2) Click the "SHARP AL-XXXXCS" icon and select "Properties" from the "File" menu.

3) In the "Properties" screen, click the "Events" tab.

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4) Select "SC1:" from the "Select an event" pull-down menu.

4) In the "Properties" screen, click the "Events" tab.

5) Select "SC1:" from the "Scanner events" pull-down menu.

5) Select "Start this program" and then select "Sharp Button Manager B" from the pull-down menu.

6) Click the "Apply" button.

7) Repeat Steps 4 through 6 to link Button Manager to "SC2:" through "SC6:".

Select "SC2:" from the "Select an event" pull-down menu. Select "Start this program", select "Sharp Button Manager B" from the pulldown menu, and then click the "Apply" button. Do the same for each ScanMenu through "SC6:".

When the settings have been completed, click the "OK" button to close the screen.

Button Manager is now linked to the scan menu (1 through 6). The scan settings for each of scan menu 1 through 6 can be changed

with the setting window of Button Manager. For the factory default settings of the scan menu. For the procedures

for configuring Button Manager settings, see "Button Manager Settings" in the Online Manual.

(2) Windows 98/Me/2000

1) click the "Start" button, select "Settings", and then click "Control Panel".

2) Double-click the "Scanners and Cameras" icon.

Note: If the "Scanners and Cameras" icon does not appear in

Windows Me, click "view all Control Panel options".

3) Select "SHARP AL-XXXXCS" and click the "Properties" button. In Windows Me, right click "SHARP AL-XXXXCS" and click "Prop-

erties" in the pop-up menu.

6) Select "Sharp Button Manager B" in "Send to this application".

Note: If other applications are shown, deselect the checkboxes for the

other applications and leave only the Button Manager checkbox selected.

7) Click the "Apply" button.

8) Repeat Steps 5 through 7 to link Button Manager to "SC2:" through "SC6:".

Select "SC2:" from the "Scanner events" pull-down menu. Select "Sharp Button Manager B" in "Send to this application" and click the "Apply" button. Do the same for each ScanMenu through "SC6:".

When the settings have been completed, click the "OK" button to close the screen.

Button Manager is now linked to the scan menu (1 through 6). The scan settings for each of scan menus 1 through 6 can be changed

with the setting window of Button Manager. For the factory default settings of the scan menu. For the procedures

for configuring Button Manager settings, see "Button Manager Settings" in the Online Manual.

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10. Interface

A. USB

Connector

4-pin ACON UBR23-4K2200 Type-B connector

Cable

Shielded twisted pair cable (2 m (6 feet) Max.: high-speed transmission equivalent)

Pin configuration

The pin numbers and signal names are listed in the following table.

Pin No. Signal name

1+5V 2-DATA 3+DATA 4GND

B. RJ45

RJ-45 connector pin arrangement

Pin No. Signal name LAN adapter RJ-45 connector

1 TD+ Send output + 2TD– Send output 3 RD + Receive input + 6RD– Receive input -

4, 5, 7, 8 Not used. Not used.

11. Moving

Moving instructions

When moving the unit, follow the procedure below. Note: When moving this unit, be sure to remove the TD cartridge in

advance.

1) Turn the power switch off and remove the power cord from the outlet.

2) Open the side cover and front cover, in that order. Remove the TD cartridge and close the front cover and side cover, in that order.

To open and close the side cover and front cover, and to remove the TD cartridge.

3) Raise the handle of the paper tray and pull the paper tray out until it stops.

4) Push the center of the pressure plate down until it locks in place and lock the plate using the pressure plate lock which has been stored in the front of the paper tray.

5) Push the paper tray back into the unit.

6) Lock the scan head locking switch.

Note: When shipping the unit, the scan head locking switch must be

locked to prevent shipping damage.

7) Close the multi-bypass tray and the paper output tray extension, and attach the packing materials and tape which were removed during installation of the unit.

8) Pack the unit into the carton.

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[6] COPY PROCESS

1. Functional diagram

An OPC drum is used for the photoconductor. (Structure of the OPC drum layers)

Main charger

OPC layer (20 microns thick) Pigment layer (0.2 to 0.3 microns thick) Aluminum drum

(Basic operation cycle)

Laser beam

MG roller

Main high voltage unit

Cleaning blade

Drum

Transfer unit

Resist roller

Semiconductor laser

Focus correction lens

Exposure

To face down tray

Saw tooth

Cleaning blade

Waste toner box

Paper release Fusing

Heat roller

Heater lamp

Charge

Drum

Cleaning

Separation

Electrode

AL-1651CS COPY PROCESS 6 - 1

Transfer

Transfer charger

Transfer high voltage unit

Developing

Cassette

paper feed

Synchronization

with drum

Toner

Developer

PS roller

Manual feed

Print process

Paper transport route

Page 28

2. Outline of print process

This printer is a non-impact printer that uses a semiconductor laser and electrostatic print process. This printer uses an OPC (Organic Photo Conductor) for its photoconductive material. First, voltage from the main corona unit charges the drum surface and a latent image is formed on the drum surface using a laser beam. This latent image forms a visible image on the drum surface when toner is applied. The toner image is then transferred onto the print paper by the transfer corona and fused on the print paper in the fusing section with a combination of heat and pressure.

Step-1: Charge Step-2: Exposure * Latent image is formed on the drum. Step-3: Developing

Latent image formed on the drum is then changed into visible image with toner.

Step-4: Transfer

The visible image (toner image) on the drum is transferred onto the print paper.

Step-5: Cleaning

Residual toner on the drum surface is removed and collected by the cleaning blade.

Step-6: Optical discharge

Residual charge on the drum surface is removed, by semiconductor laser beam.

3. Actual print process

Step-1: DC charge

A uniform negative charge is applied over the OPC drum surface by the main charging unit. Stable potential is maintained by means of the Scorotron charger. Positive charges are generated in the aluminum layer.

Step-2: Exposure (laser beam, lens)

A Laser beam is generated from the semiconductor laser and controlled by the print pattern signal. The laser writes onto the OPC drum surface through the polygon mirrors and lens. The resistance of the OPC layer decreases for an area exposed by the laser beam (corresponding to the print pattern signal). The beam neutralizes the negative charge. An electrostatic latent image is formed on the drum surface.

Semiconductor laser

Exposure (semiconductor laser)

OPC layer

Pigment layer

Aluminum drum

Drum surface charge after the exposure

OPC layer

Pigment layer

Aluminum

Non-image area Image area

layer

About

DC5.5KV

( 580V/ 400V)

AL-1651CS COPY PROCESS 6 - 2

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Step-3: Developing (DC bias)

A bias potential is applied to the MG roller in the two component magnetic brush developing method, and the toner is charged negative through friction with the carrier. Non-image area of the drum surface charged with negative potential repel the toner, whereas the laser exposed portions where no negative charges exist, attract the toner. As a result, a visible image appears on the drum surface.

:Carrier (Magnetized particle) :Toner (Charge negative by friction) (N) (S) Permanent magnet

(provided in three locations)

Step-4: Transfer

The visible image on the drum surface is transferred onto the print paper by applying a positive charge from the transfer corona to the backside of the print paper.

About DC 5.2kV

400V 8V

Toner is attracted over the shadowed area because of the developing bias.

MG roller

Step-5: Separation

Since the print paper is charged positively by the transfer corona, it is discharged by the separation corona. The separation corona is connected to ground.

Step-6: Cleaning

Toner remaining on the drum is removed and collected by the cleaning blade. It is transported to the waste toner collecting section in the cleaning unit by the waste toner transport roller.

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Step-7: Optical discharge (Semiconductor laser)

Before the drum rotation is stopped, the semiconductor laser is radiated onto the drum to reduce the electrical resistance in the OPC layer and eliminate residual charge, providing a uniform state to the drum surface for the next page to be printed. When the electrical resistance is reduced, positive charges on the aluminum layer are moved and neutralized with negative charges on the OPC layer.

Semiconductor laser

Charge by the Scorotron charger

Function

The Scorotron charger functions to maintain uniform surface potential on the drum at all times, It control the surface potential regardless of the charge characteristics of the photoconductor.

Basic function

A screen grid is placed between the saw tooth and the photoconductor. A stable voltage is added to the screen grid to maintain the corona current on the photoconductor. As the photoconductor is charged by the saw tooth from the main corona unit, the surface potential increases. This increases the current flowing through the screen grid. When the photoconductor potential nears the grid potential, the current turns to flow to the grid so that the photoconductor potential can be maintained at a stable level.

Start

1) Because the grid potential is at a low level, the drum potential is at about -400V. (Carrier may not be attracted though the carrier is pulled towards the drum by the electrostatic force of -400V.

2) Developing bias (-400V) is applied when the photoconductor potential is switched from LOW to HIGH.

3) Once developing bias (-400V) is applied and the photo conductor potential rises to HIGH, toner will not be attracted to the drum.

Stop

The reverse sequence takes place. Retaining developing bias at an abnormal occurrence

Function

The developing bias will be lost if the power supply was removed during print process. In this event, the drum potential slightly abates and the carrier makes deposits on the drum because of strong static power. To prevent this, the machine incorporates a function to retain the developing bias for a certain period and decrease the voltage gradually against possible power loss.

Basic function

Normally, the developing bias voltage is retained for a certain time before the drum comes to a complete stop if the machine should stop before completing the normal print cycle. The developing bias can be added before resuming the operation after an abnormal interruption. Therefore, carrier will not make a deposit on the drum surface.

Process controlling

Function

The print pattern signal is converted into an invisible image by the semiconductor laser using negative to positive (reversible) developing method. Therefore, if the developing bias is added before the drum is charged, toner is attracted onto the drum. If the developing bias is not added when the drum is charged, the carrier is attracted to the drum because of the strong electrostatic force of the drum. To avoid this, the process is controlled by adjusting the drum potential and the grid potential of the Scorotron charger.

Basic function

Voltage added to the screen grid can be selected, high and low. To make it easily understood, the figure below shows voltage transition at the developer unit.

START STOP

Toner attract potential

Low

Print potential

Developing bias

High

Time

Drum potential

AL-1651CS COPY PROCESS 6 - 4

Page 31

[7] OPERATIONAL DESCRIPTIONS

1. Outline of operation

The outline of operation is described referring to the basic configuration.

(Basic configuration)

Scanner section

Operation

section

Printer section

CCD

MCU (Main control/image process section)

LSU (Laser unit) Laser diode, Polygon mirror lens

Laser beam

Process section

Cassette paper

feed section

Paper exit

Fusing section

Paper transport section

Manual paper

feed section

Printer/ Scanner I/F

Note: The scanner function is effective

USB or Network

only by USB connection. Network is for print only.

(Outline of copy operation)

Setting conditions

1) Set copy conditions such as the copy quantity and the copy density with the operation section, and press the COPY button. The information on copy conditions is sent to the MCU.

Image scanning

2) When the COPY button is pressed, the scanner section starts scanning of images. The light from the copy lamp is reflected by the document and passed through the lens to the CCD.

Photo signal/Electric signal conversion

3) The image is converted into electrical signals by the CCD circuit and passed to the MCU.

Image process

4) The document image signal sent from the CCD circuit is processed under the revised conditions and sent to the LSU (laser unit) as print data.

Electric signal/Photo signal (laser beam) conversion

5) The LSU emits laser beams according to the print data. (Electrical signals are converted into photo signals.)

6) The laser beams are radiated through the polygon mirror and various lenses to the OPC drum.

Printing

7) Electrostatic latent images are formed on the OPC drum according to the laser beams, and the latent images are developed to be visible images(toner images).

8) Meanwhile the paper is fed to the image transfer section in synchronization with the image lead edge.

9) After the transfer of toner images onto the paper, the toner images are fused to the paper by the fusing section. The copied paper is discharged onto the exit tray.

(Outline of printer operation)

The print data sent from the PC are passed through the I/F and the MCU to the LSU. The procedures after that are the same as above 5) and later.

(Outline of scanner operation)

The scan data are passed through the MCU and the I/F to the PC according to the conditions requested by the PC or set by the operations with the operation panel.

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 1

Page 32

2. Scanner section

A. Scanner unit

The scanner unit in the digital copier scans images. It is composed of the optical unit and the drive unit. The optical unit

performs scanning in the main scan direction with the light receiving elements (color CCD). The drive unit performs scanning in the sub scanning direction by moving the optical unit.

B. Optical system

Two white lamps are used as the light source. Light radiated from the light source is applied to the document on the

document table. The reflected light from the document is reflected 5 times by No. 1 - No. 3 mirrors and passed through the reduction lens to form images on the light-receiving surface of 3-line CCD.

The light-receiving surface of the color CCD is provided with 3 line scanning sections for RGB. Separate images scanned in each color section are overlapped to complete color scanning. (When PC scanning)

The resolution is 600dpi. When copying, only the green component is used to print with the

printer. The color component for printing can be switched to red or blue by the

service test command.

6.00E-01

5.00E-01

4.00E-01

3.00E-01

Intensity of UV

2.00E-01

1.00E-01

0.00E+00

Lamp : MBVM26W25W260NLH/G Lamp current : 5mA Temp. : 25 degree

0 200 400 600 800

MBVM26W25W260NLH/G

Wave length (nm)

(Spectrum characteristics of the color CCD)

(Optical unit)

1 Table glass 2 Optical unit 3 Lens 4 Mirror 1 5 Mirror 2 6 Mirror 3 7 CCD PWB 8 Lamp 9 Reflector

(Spectrum characteristics of the lamp)

C. Drive system

The drive system is composed of the scanner motor, the pulley gear, the idle pulley, the idle gear, the belt 473, the belt 190, and the shaft.

The motor rotation is converted into reciprocated movements of the belt 473 through the idle gear, the pulley gear, the belt 190, and the idle pulley to drive the optical unit.

34 6 285

1 Scanner motor 2 Pulley gear 3 Idle pulley 4 Belt 473 5 Belt 190 6 Optical unit 7 Shaft 8 Idle gear 9

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 2

Page 33

3. Laser unit

The image data sent from the MCU (image process circuit) is sent to the LSU (laser unit), where it is converted into laser beams.

A. Basic structure

The LSU unit is the writing section of the digital optical system. The semiconductor laser is used as the light source, and images are

formed on the OPC drum by the polygon mirror and fθ lens, etc. The laser beams are passed through the collimator lens, the cylindrical

lens, the polygon mirror, the fθ lens, and the mirror to form images on the OPC drum in the main scanning direction. The laser emitting PWB is provided with the APC (auto power control) in order to eliminate fluctuations in the laser power. The BD PWB works for measurement of the laser writing start point.

B. Laser beam path

4 1

No Component Function

1 Semiconductor laser Generates laser beams. 2 Collimator lens Converges laser beams in parallel. 3 CY lens Converges laser beams onto the

polygon mirror surface.

4 Polygon mirror,

polygon motor

5 BD (Mirror, lens,

PWB)

6fθ lens Converges laser beams at a spot on

Makes the laser scanning speeds at both ends of the drum same as each other.

Reflects laser beams at a constant rpm. (A four-surfaces polygon mirror is used.) Detects start timing of laser scanning.

the drum. Makes the laser scanning speeds at

both ends of the drum same as each other. (Refer to the figure below.)

C. Composition

Effective scanning width: 216mm (max.) Resolution: 600dpi Beam diameter: 75um in the main scanning direction, 80um in the sub

scanning direction Image surface power: 0.17 ±0.01mW (Laser wavelength 770 - 795nm) Polygon motor section: Brushless motor 31,180rpm

No. of mirror surfaces: 4 surfaces

4. Fuser section

a ≠ b ≠ c

ab c

d = e = f

def

fθ LENS

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 3

Page 34

A. General description

General block diagram (cross section)

Separator pawl

Paper guide

Thermistor

Top view

Heat roller

Thermal fuse

Heat roller

Thermistor

PPD2

Thermal fuse

Heater lamp

Pressure roller

2) The surface temperature of the upper heat roller is set to 165 190°C. The surface temperature during the power save mode is set to 100°C.

3) The self-check function comes active when one of the following malfunctions occurs, and an "H" is displayed on the multicopy window.

a. When the heat roller surface temperature rises above 240°C. b. When the heat roller surface temperature drops below 100°C during

the copy cycle. c. Open thermistor d. Open thermal fuse e. When the heat roller temperature does not reach 190°C within 27

second after supplying the power.

(4) Fusing resistor

Fusing resistor

This model is provided with a fusing resistor in the fusing section to improve transfer efficiency.

Since the upper heat roller is conductive, when using copy paper that contains moisture and the distance between the transfer unit and the fusing unit is short, the transfer current may find a path to ground via the copy paper, the upper heat roller and the discharging brush.

5. Paper feed section and paper transport

section

A. Paper transport path and general operations

Separator pawl

(1) Heat roller

A Teflon roller is used for the heat roller and a silicone rubber roller is used for the lower heat roller for better toner fusing performance and paper separation.

(2) Separator pawl

Three separator pawls are used on the upper heat roller. The separator pawls are Teflon coated to reduce friction with the roller and prevent a smear on the paper caused by the separator pawl.

(3) Thermal control

1) The heater lamp, thermistor, main PWB, DC power supply PWB, and triac within the power supply unit are used to control the temperature in the fuser unit. To prevent against abnormally high temperature in the fuser unit, a thermal breaker and thermal fuse are used for safety purposes.

Heated by the heater lamp. (950W)

Safety device (thermal breaker, thermal fuse)

The surface temperature of the upper heat roller is sensed by the thermistor.

2534

7 8 9 10

121314

1 Scanner unit 8 Drum 2 Copy lamp 9 Transfer unit 3 LSU (Laser unit) 10 Pickup roller 4 Paper exit roller 11 Manual paper feed tray 5 Main charger 12 Manual paper feed roller 6 Heat roller 13 PS roller unit 7 Pressure roller 14 Paper feed roller

Paper feed is made in two ways; the tray paper feed and the manual paper feed. The tray is of universal-type, and has the capacity of 250 sheets.

The front loading system allows you to install or remove the tray from the front cabinet.

The general descriptions on the tray paper feed and the manual paper feed operation are given below.

Triac (in the power supply unit)

Level of the thermistor is controlled by the main PWB.

With the signal from the main PWB, the triac is controlled on and off. (power supply PWB)

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 4

Page 35

(1) Cassette paper feed operation

1) The figure below shows the positions of the pick-up roller, the paper feed clutch sleeve, and the paper feed latch in the initial state without pressing the COPY button after lighting the ready lamp. The paper feed latch is in contact with the projection of the clutch sleeve.

2) When the COPY button is pressed, the main drive motor starts rotating to drive each drive gear. The pick-up drive gear also is driven at that time. Since, however, the paper feed latch is in contact with the projection of the clutch sleeve, rotation of the drive gear is not transmitted to the pick-up roller, which does not rotate therefore.

5) At this time, the paper is fed passed the paper entry detection switch (PPD1), and detected by it. After about 0.15 sec from detection of paper by PPD1, the tray paper feed solenoid (PFS) turns on so that the clutch sleeve projection comes into contact with the paper feed latch to stop the pick-up roller. Then the pickup roller rotates for about 0.15 sec so that the lead edge of the paper is evenly pressed on the resist roller, preventing against skew feeding.

PFS

RRS

OFF

PFS

RRS

OFF

3) After about 0.1 sec from when the main motor start rotating, the tray paper feed solenoid (PFS) turns on for a moment. This disengages the paper feed latch from the projection of the clutch sleeve, transmitting rotation of the pick-up drive gear to the paper feed roller shaft, rotating the pick-up roller to feed the paper.

PFS

RRS

OFF

6) To release the resist roller, the tray paper feed solenoid and the resist solenoid are turned on by the paper start signal to disengage the resist start latch from the clutch sleeve, transmitting rotation of the resist drive gear to the resist roller shaft. Thus the paper is transported by the resist roller.

7) After the resist roller starts rotating, the paper is passed through the pre-transfer guide to the transfer section. Images are transferred on the paper, which is separated from the OPC drum by the drum curve and the separation section.

PFS

RRS

OFF

8) The paper separated from the drum is passed through the fusing paper guide, the heat roller (fusing section), POD (paper out detector) to the copy tray.

4) After more than half rotation of the pick-up roller, the paper feed latch is brought in contact with a notch on the clutch sleeve, stopping rotation of the pick-up roller.

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 5

Page 36

(2) Manual multi paper feed operation

1) Before paper feed operation, the manual paper feed solenoid (MPFS) is turned OFF as shown in the figure below.

3) When pawl C of the manual paper feed clutch sleeve is engaged with the manual feed latch, the manual feed stopper falls and the manual take-up roller rises. At that time, the manual paper feed roller is rotating.

MPFS

2) When the PRINT button is pressed, the manual paper feed solenoid (MPFS) turns on to disengage the manual paper feed latch. A from the manual paper feed clutch sleeve A, rotating the manual paper feed roller and the manual take-up roller. At the same time, the manual paper feed stopper opens and the manual take-up roller is pressed to the surface of the paper to start paper feeding.

MPFS

4) The lead edge of the transported paper is pressed on the resist roller by the transport roller. Then the paper is stopped temporarily to allow synchronization with the lead edge of the image on the OPC drum. From this point, the operation is the same as the paper feed operation from the tray. (Refer to A-5 - 8.)

5) The solenoid turns off to close the gate and return to the initial state.

MPFS

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 6

MPFS

Page 37

(3) Conditions of occurrence of paper misfeed

a. When the power is turned on:

PPD or POD is ON when the power is turned on.

b. Copy operation

a PPD1 jam PPD1 does not turn off within 4 sec after turning

on the resist roller.

b PPD2 jam PPD2 is off immediately after turning on the

resist roller. PPD2 does not turn off within 1.2 sec after

turning off the resist roller.

c POD jam POD does not turn on within 2.9 sec after turning

on the resist roller. POD does not turn off within 1.5 sec - 2.7 sec

after turning off PPD2.

6. Process unit new drum detection mechanism

1) When the power is turned on, the detection gear 38T is rotated in

the arrow direction by the detection gear 20T to push the microswitch (process detection switch) installed to the machine sensor cover, making a judgement as a new drum.

Gear 20T

2) When the detection gear 38T turns one rotation, there is no gear any more and it stops. The latch section of the 38T gear is latched and fixed with the projection of the process cover.

Gear notch

Gear pawl

Projection

Gear notch

Gear 38T

Process detection switch

Projection

Gear pawl

7. RSPF section

A. Outline

The RSPF (Reverse Single Path Feeder) is installed to the AL-1651CS as a standard provision, and it automatically copies up to 30 sheets of documents of a same size. (Only one set of copies)

B. Document transport path and basic composition

56712

143

8921113 10

1 Pickup roller 2 Sheet of document for paper feed 3 Set detection ACT 4 Paper stopper 5 Document feed roller 6 Separation sheet 7 Paper entry sensor 8 PS roller D

9 Transport follower roller 10 Paper exit roller 11 Paper exit follower roller 12 Document tray 13 Switch gate

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 7

Page 38

C. Operational descriptions

Time chart (Tray feed)

Document set

SPID ON

Document feed unit lamp ON

PSW ON

(Copier side)

MM rotation

CPFS ON

PPD ON

RRC ON

(Transfer)

(Fusing)

POD ON

(Paper exit)

In the zooming mode, the magnification ratio in the sub scanning direction (paper transport direction) is adjusted by changing the document transport speed.

PSW MIRR M SPF M CL SPUS SPPD

SCANST

MAIN M CPFS1 RRS

PPD1 PPD2 POD

MIRM rotation

Main motor rotation

Paper feed

Synchronization

Paper transport

Document set sensor

Copy start

The scanner is shifted to the exposure position.

625msec

756msec

(SPF side)

SPFM rotation

(Document exit)

SPUS ON

SPPD ON

(Exposure)

SPF motor rotation

Document feed

Document transport sensor

Document transport

752msec

8. D-D (Duplex to Duplex) mode paper/ document transport (Duplex model)

A. Initial state

Set duplex documents on the document tray. Set paper on the cassette. (In the duplex mode, the manual feed tray

cannot be selected.)

B. Front copy

Document transport:

The document feed roller feeds the document from the paper feed roller to the PS roller.

• The document is exposed in the exposure section, and sent to the

document exit section

• by the transport/paper exit roller.

• R-SPF gate solenoid ON

• The document is sent to the intermediate tray.

(but not discharged completely.)

• The document is stopped once, then switchback operation is

performed. (To the back copy)

Paper transport:

The document is passed through the paper feed roller and the PS roller by the paper feed roller

and the images on the front surface are transferred.

• The paper is passed through the fusing section and the lower side of

the gate section to the paper exit tray side, (but not discharged completely.)

• It is stopped once and switchback operation is performed.

(To the back copy)

D. Cases where a document jam is caused

1) When SPPD is ON (document remaining) when the power is turned on.

2) When SPPD is not turned ON within about 1.5 sec (at 100% copy) after starting the document feed operation.

3) When SPPD is not turned on within about 4.7 sec (at 100% copy) after turning on SPPD.

4) When the SPF document jam release door or the OC cover is opened during document transport (SPF motor rotating).

E. RSPF (SPF) open/close detection (book

document detection)

RSPF (SPF) open/close detection (book document) detection is performed by detecting the interval between the reference lines on the white Mylar attached to the paper exit guide (document scanning section) by the scanner (CCD) and detecting the varied quantity.

Reference line Reference line

(CCD)

(White Mylar)

(Floating)

A - B = Varied quantity of pixels

(pixel)

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 8

Page 39

C. Back copy

Document transport:

By switchback operation, the document is sent through the PS roller to the exposure section, where the back of the document is exposed.

• It is sent to the document exit section by the transport roller and the paper exit roller.

• R-SPF gate solenoid ON. The document is sent to the intermediate tray, (but not discharged completely.)

• It is stopped once and switchback operation is performed.

• It is sent through the PS roller and the exposure section (without

exposure operation) to the document exit section.

• R-SPF gate solenoid OFF

• The document is discharged to the document exit tray.

Paper transport:

Switchback operation is performed.

• The paper is sent through the upper side of the gate section and the duplex transport section, and the PS roller, and the images on the back are transferred.

• It is sent through the fusing section and discharged to the paper exit tray.

Switchback operation is made after back copying in order to discharge documents according to the setting.

Set document Documents after discharge,

with empty feed

23 4 32 1 41 2

There are following job modes as well as D-D mode. S - S (Simplex to Simplex) S - D (Simplex to Duplex), Rotation copy mode (The back images are rotated 180°C.) S - D (Simplex to Duplex), Copy mode without rotation D - S (Duplex to Simplex)

without empty feed

Rotation copy mode:

The front and the back are in upside down each other.

Copy mode without rotation:

The front and the back are not in upside down.

9. Shifter

Shift width: 2.5cm The offset function by the shifter is turned ON/OFF by the user pro-

gram. According to the setting, offset operation is performed for every job.

(Default: ON)

AL-1651CS OPERATIONAL DESCRIPTIONS 7 - 9

Page 40

[8] DISASSEMBLY AND ASSEMBLY

Before disassembly, be sure to disconnect the power cord for safety.

1. Do not disconnect or connect the connector and the harness during the machine is powered. Especially be careful not to disconnect or connect the harness between the MCU PWB and the LSU (MCU PWB: CN20) during the machine is powered. (If it is disconnected or connected during the machine is powered, the IC inside the LSU will be destroyed.)

2. To disconnect the harness after turning on the power, be sure to turn off the power and wait for at least 10 sec before disconnection. (Note that a voltage still remains immediately after turning off the power.)

The disassembly and assembly procedures are described for the following sections:

1. High voltage section

2. Operation panel section

3. Optical section

4. Fusing section

5. Tray paper feed/transport section

6. Manual paper feed section

7. Rear frame section

8. Power section

9. Duplex motor section

10. Reverse roller section

11. RSPF section

2) Push up the lock pawls (2 positions) of the side cover, and remove the transfer charger.

Lock pawl rear

Transfer charger

1. High voltage section

A. List

No. Part name Ref.

1 Transfer charger unit 2 Charger wire

B. Disassembly procedure

1) Press the side cover open/close button and open the side cover.

Lock pawl rear

C. Assembly procedure

For assembly, reverse the disassembly procedure.

D. Charger wire cleaning

1) Remove the charger cleaner from the manual paper feed unit.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 1

Page 41

2) Set the charger cleaner to the transfer unit, and move it reciprocally a few times in the direction of the arrow shown in the figure below.

2. Operation panel section

A. List

No. Part name Ref.

1 Operation panel unit 2 Operation PWB

B. Disassembly procedure

1) Open the side door, and Open the front cover.

E. Charger wire replacement

1) Remove the TC cover and remove the screw.

2) Remove the spring and remove the charger wire.

3) Install a new charger wire by reversing the procedures (1) and (2). At that time, be careful of the following items.

• The rest of the charger wire must be within 1.5mm. Refer to Fig.1

• The spring hook section (charger wire winding section) must be in

the range of the projection section.

• Be careful not to twist the charger wire.

2) Remove the screws (4 pcs.), the harness, and the operation panel unit.

Charger wire

Protrusion

Fig.1

1mm

1.5mm

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 2

Page 42

3) Remove four screws, and remove the operation cabinet.

4) Remove four screws, and remove the operation PWB.

2) Remove the connector and the clamp, and remove the RSPF unit.

Note that there are 9 pawls

C. Assembly procedure

For assembly, reverse the disassembly procedure

3. Optical section

A. List

NO. Part name Ref.

1 Copy lamp unit 2 Copy lamp 3 Lens unit

B. Disassembly procedure

1) Remove four screws, and remove the rear cabinet and the rear cabinet cover.

3) Remove the four screws, remove the operation unit, and disconnect the connector.

4) Remove the right cabinet.

5) Remove the left cabinet.

6) Remove the screw, and remove the rear cover.

7) Remove the table glass.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 3

Page 43

8) Move the carriage to the position indicated on the figure.

9) Loosen the screw which is fixing the tension plate.

10) Move the tension plate in the arrow direction to release the tension, and remove the belt.

11) Remove the screw, and remove the rod stopper.

12) Remove the rod.

C. Assembly procedure

CCD core

1) Pass the core through the CCD-MCU harness.

2) Insert the CCD-MCU harness into the CCD PWB connector of the carriage unit.

3) Move the core which was passed through the CCD-MCU harness near the CCD PWB connector as shown in the figure below, and fix it with a filament tape (19mm wide, 40mm long). For the attachment reference, refer to the figure below. Clean and remove oil from the attachment section.

4) Attach the CCD-MCU harness to the duplex tape on the back of the carriage unit.

5) Attach the PWB holder to the position specified in the figure below.

6) Pass the core through the FFC and the PWB holder, and fix the core.

Note: Attach the FCC to the base plate securely with duplex tape to prevent against coming loose.

13) Lift the rear side of the carriage, remove the belt and the connector, and remove the carriage.

Note: Attach the FCC to fit with the marking line.

Marking line.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 4

Page 44

4. Fusing section

A. List

No. Part name Ref.

1 Thermistor 2 PPD2 sensor 3 Heater lamp 4 Pressure roller 5 Heat roller

B. Disassembly procedure

1) Remove the connectors (3 pcs.) of the rear cabinet.

2) Open the side cover, remove two screws, and remove the fusing unit.

4) Remove the screw and remove the U-turn guide.

Pressure roller section disassembly

5) Remove the three screws, remove the fusing cover lower on the right side, and open the heat roller section.

3) Cut the binding band, remove the screw, and remove the thermistor.

6) Remove the screw and remove the PPD2 sensor.

PPD2 sensor

Thermistor

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 5

Page 45

7) Remove the plate spring on the right and remove the heater lamp.

Heater lamp

10) Remove the pressure release levers on the right and the left sides.

11) Remove the pressure roller, the pressure bearing, and the spring. Note: Apply grease to the sections specified with an asterisk (*).

Grease: “JFE552” UKOG-0235FCZZ

Pressure roller

8) Remove the spring and remove the separation pawls (3 pcs.).

9) Remove the E-ring and remove the reverse gate.

Heat roller disassembly

(Continued from procedure (4).)

5) Remove screws, remove the fusing cover, and open the heat roller section.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 6

Page 46

6) Remove the C-ring and the fusing bearing, and remove the heat roller.

Heat roller

5. Tray paper feed/transport section

A. List

No. Part name Ref.

1 Paper holding arm 2 PPD1 sensor PWB 3 LSU unit 4 Intermediate frame unit 5 Paper feed roller

B. Disassembly procedure

1) Remove the paper holding arm. Remove the arm holder from the main unit, and remove the holder

from the arm.

7) Remove the parts from the heat roller. Note: Apply grease to the sections specified with

Grease: “JFE552” UKOG-0235FCZZ

Apply grease "GU-2" (UKOG-0255FCZZ) to the fusing gear surface

8) Remove two screws and remove the thermo unit.

∗2.

∗

2) 2

2) Remove the two screws, and remove the hinge guide R.

3) Remove the fan duct and disconnect the connector. (2 positions)

4) Remove the six screws, and remove the scanner unit.

C. Assembly procedure

For assembly, reverse the disassembly procedure.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 7

Page 47

5) Disconnect the connector from the MCU PWB.

6) Disengage the pawls (2 positions), and remove the sensor PWB.

9) Disengage the pawl, and remove the roller knob.

10) Disengage the pawl, and shift the pulley and the bearing.

7) Remove the screw, and open the upper paper guide.

11) Remove the paper exit roller, and remove the belt, the pulley, and the bearing.

8) Remove the roller, and remove the belt.

12) Disconnect the connectors.

13) Remove the three screws, and remove the MCU PWB.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 8

Page 48

14) Remove two screws and remove the toner motor.

17) Remove the five screws and the grounding wire, and remove the main drive unit.

15) Remove the three screws, and remove the DUP motor unit and the belt.

16) Remove the harness guide.

CAUTION:Attach the gears securely

18) Remove the parts as shown below, and remove the pressure release solenoid and the paper feed solenoid.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 9

Page 49

19) Remove each pawl, and remove the paper exit tray.

22) Remove the four screws, and remove the lower paper guide unit.

[Note for installation]

Fit the lower paper guide hole (a) with the shifter gear hole (b) so that the black resin (c) of the shifter unit can be checked.

20) Remove two screws and remove the fusing connector.

21) Remove five screws and the connector, and lift the intermediate frame unit to remove.

23) Disengage the pawl, and remove the pulley.

24) Shift and remove the shifter unit.

25) Remove the screw, and remove the grounding plate and the gear.

26) Remove the E-ring, the gear, and the bearing, and remove the

shifter roller.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 10

Page 50

27) Put the lower paper guide unit upside down, remove the two screws, and remove the shifter motor.

28) Remove the four screws, and remove the LSU.

29) Remove the screw and the E-ring, and remove the PS semi-circular earth plate and the PS roller unit.

30) Remove the E-ring and remove the spring clutch from the PS roller unit.

PS roller unit

Use grease of Floil FG40H only to apply to this section.

PS semi-circuler

PS semi-circular

earth plate

Note: When assembling, turn it to the right and attach.

31) Remove three screws and remove the TC front paper guide.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 11

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32) Remove the screw and the connector, and remove the PPD1 sensor PWB.

35) Remove the semi-circular roller unit.

36) Remove the semi-circular rubber.

33) Remove two E-rings and remove the paper feed roller.

34) Remove three E-rings and remove the clutch unit.

Clutch unit

Paper feed roller

Back

C. Assembly procedure

For assembly, reverse the disassembly procedure.

6. Manual paper feed section

A. List

No. Part name Ref.

1 Manual transport roller 2 Cassette detection switch 3 PPD1 sensor PWB 4 Side door detection unit

B. Disassembly procedure

Multi unit

1) Remove the screw and remove the multi upper cover.

Front

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 12

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2) Remove the screw and remove the side door detection unit.

4) Remove two screws and remove the multi feed bracket unit from the multi paper feed upper frame.

Back Wire treatment

3) Remove three screws and remove the multi paper feed upper frame.

5) Remove three E-rings and remove the manual paper feed roller B9.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 13

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6) Remove the pick-up roller.

7) Cut the binding band and remove the multi paper feed solenoid.

D. Pressure plate holder attachment

1) Attach the pressure plate holder so that the resin section is not covered with the seal M1-N.

Seal M1-N

Pressure plate holder

Attachment reference

Multi paper feed solenoid

C. Assembly procedure

For assembly, reverse the disassembly procedure.

7. Rear frame section

A. List

No. Part name Ref.

1 Mirror motor 2Main motor 3 Exhaust fan motor

B. Disassembly procedure

1) Remove four screws, and remove the rear cabinet and the rear cabinet cover.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 14

Page 54

2) Disconnect the connector.

3) Remove two screws, and remove the scanner motor.

8. Power section

A. List

No. Part name Ref.

1 Power PWB

B. Disassembly procedure

1) Disconnect each connector.

2) Remove the screw, and remove the earth line.

3) Remove two screws, and remove the power PWB unit.

4) Remove two screws and one harness, and remove the main motor.

5) Remove two screws and one connector, and remove the exhaust fan motor.

Note: Be careful of the installing directions of the fan.

Attach it so that the blowing direction faces outside.

C. Assembly procedure

For assembly, reverse the disassembly procedure.

9. Duplex motor section (RSPF model only)

A. Remove the rear cabinet.

1) Remove four screws.

2) Remove the rear cabinet.

B. Remove the main PWB.

1) Disconnect the connector.

2) Remove the two screws, and remove the NIC PWB.

C. Assembly procedure

For assembly, reverse the disassembly procedure.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 15

Blowing direction

Page 55

3) Disconnect the connector.

4) Remove the two screws, and remove the NIC PWB unit.

5) Disconnect the connectors.

6) Remove the five screws, and remove the MCU PWB.

10.Reverse roller section (RSPF model only)

A. Remove the reverse unit.

1) Remove four screws

2) Remove the spring, and the earth wire

3) Remove the reverse unit.

B. Remove the reverse roller.

1) Bend the reverse roller and remove it.

C. Remove the Duplex motor.

1) Remove two screws.

2) Remove the Duplex motor cover.

3) Remove the Duplex motor.

Note: When reassembling, be sure to engage the Duplex motor gear

with the belt on the main body side.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 16

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11.RSPF section (RSPF model only)

A. RSPF

(1) Remove the rear cabinet.

1) Remove four screws.

2) Remove the rear cabinet.

(2) Remove the RSPF.

1) Remove the connector and the cable.

2) Remove the RSPF.

C. Upper cover

1) Remove four screws from the bottom of the main body.

2) Remove the upper cover.

B. Intermediate tray

1) Remove the intermediate tray.

D. Pickup unit

1) Remove the belt, the paper feed frame spring, and two harnesses.

2) Remove the pickup unit.

Note: When reassembling, be careful of the hole position for the paper

feed frame spring.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 17

Page 57

E. Upper cover of the pickup unit.

1) Remove two screws from the bottom of the pickup unit.

2) Remove the upper cover.

G. Pickup solenoid

1) Remove two screws.

2) Remove the pickup solenoid.

F. Sensor PWB

1) Remove two screws.

2) Remove the sensor PWB.

3) Remove the harness.

Note: When reassembling, hang the iron core on the solenoid arm.

H. Clutch

(1) Remove the clutch unit.

1) Remove the E-ring.

2) Remove the pulley and the bush.

3) Slide the bush in the arrow direction.

4) Lift the clutch pawl.

5) Remove the clutch unit.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 18

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(2) Remove the clutch

1) Remove the E-ring.

2) Remove the parts.

(2) Remove the Manual paper feed roller, pickup roller.

1) Remove the parts.

2) Remove the manual paper feed roller.

3) Remove the pickup roller.

4) Remove the parts.

I. Manual paper feed roller, pickup roller

(1) Remove the pickup unit.

1) Lift the paper stopper.

2) Slide the take-up roller unit.

3) Slide the bushing in the arrow direction.

4) Remove the take-up roller.

J. Transport unit removal

1) Disconnect the connector, and cut the binding band.

2) Remove two screws, and remove the document tray unit.

3) Remove five screws, and remove the transport unit.

Note: When reassembling, hang the convex portion of the roller unit

on the solenoid arm.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 19

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K. Belt 1

1) Remove the belt.

M. SPF motor

1) Remove the harness.

2) Remove two screws.

3) Remove the SPF motor.

L. Belt 2

1) Remove three screws.

2) Remove the drive unit.

3) Remove the belt.

N. Solenoid

1) Remove the harness.

2) Remove two screws.

3) Remove the solenoid.

Note: When reassembling, hang the belt on the boss.

O. Clutch

1) Cut the band with nippers.

2) Remove the harness.

3) Remove the clutch.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 20

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P. Paper supply roller

(1) Remove the parts.

1) Remove the two screws.

2) Remove the parts.

Q. Paper entry sensor

1) Loosen the screw.

2) Open the paper exit paper guide.

3) Remove the paper entry sensor.

4) Remove the harness.

(2) Remove the paper supply roller.

1) Loosen the screw.

2) Open the paper exit paper guide.

3) Remove the parts.

4) Remove the paper supply roller.

R. Transport roller 1.

(1) Remove the parts.

1) Remove the parts.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 21

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(2) Remove the parts.

1) Loosen the screw.

2) Open the paper exit paper guide.

3) Remove the parts.

S. Paper exit roller

(1) Remove the parts.

1) Remove two screws.

2) Remove the parts.

(3) Remove the transport roller.

1) Remove the paper exit paper guide.

2) Remove the transport roller.

(2) Remove the paper feed paper guide upper.

1) Remove two screws.

2) Remove the paper feed paper guide upper.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 22

Page 62

(3) Remove the paper exit roller.

1) Remove the parts.

2) Remove the paper exit roller.

(2) Remove the solenoid.

1) Remove the screw.

2) Remove the solenoid.

T. Solenoid

(1) Remove the reverse gate

1) Remove the ring

2) Remove the reverse gate

Note: When reassembling, be careful of the groove and the hole

positions of the spring.

Note: When reassembling, hang 2) on the solenoid.

AL-1651CS DISASSEMBLY AND ASSEMBLY 8 - 23

Page 63

[9] ADJUSTMENTS

1. Optical section

A. Copy magnification ratio adjustment

The copy magnification ratio must be adjusted in the main scanning direction and in the sub scanning direction. To adjust, use TC 48-01.

(1) Outline

The main scanning (front/rear) direction magnification ratio adjustment is made manually.

The adjustment is made by manual key operations. (The zoom data register set value is changed for adjustment.)

The magnification ratio in the sub scanning direction is adjusted by changing the carriage (scanner) scanning speed.

(2) Main scanning/sub scanning direction magnification

ratio adjustment

a. Cases when the adjustment is required

1) When the main PWB is replaced.

2) When the EEPROM in the main PWB is replaced.

3) When "U2" trouble occurs.

4) When repairing or replacing the optical section.

b. Necessary tools

• Scale

c. Main scanning direction adjustment procedure

1) Set the scale vertically on the document table. (Use a long scale for precise adjustment.)

5) Calculate the main scanning direction magnification ratio. Main scanning direction magnification ratio

Copy image dimensions

Original dimension

(When a 100mm scale is used as the original.)

Paper feed direction

mm 1/2mm

10 20

Reference

X 100 (%)

100 110 120 130

100

Comparison point

JAPAN

110

120 130

140

Original (Scale)

HARDENED STAINLESS

150

Shizuoka

HARDENED STAINLESS

150

Shizuoka

Copy

110

6) Check that the copy magnification ratio is within the specified range. If it is not within the specified range, perform the following procedures.

7) Execute TC 48-01 to select the main scanning direction copy magnification ratio adjustment mode. To select the adjustment mode, use the [←/→] key.

Mode

Main scan direction

Display

item

Default

value

LED

F-R 50 PRINT mode lamp magnification ratio OC mode sub scan

SCAN 50 SCAN mode lamp

direction magnification ratio

8) Enter the new set value of main scanning direction copy magnification ratio with the copy quantity set key, and press the [START] key.

9) Change the set value and repeat the adjustment until the ratio is within the specified range. When the set value is changed by 1, the magnification ratio is changed by 0.1%.

d. Sub scanning direction adjustment procedure

1) Set the scale on the document table as shown below. (Use a long scale for precise adjustment.)

2) Set the copy magnification ratio to 100%.

3) Make a copy on A4 or 81/2" x 11" paper.

4) Measure the length of the copied scale image.

AL-1651CS ADJUSTMENTS 9 - 1

Page 64

2) Set the copy magnification ratio to 100%.

3) Make a copy on A4 or 81/2" x 11" paper.

4) Measure the length of the copied scale image.

5) Calculate the sub scanning direction copy magnification ratio using the formula below.

Copy image dimensions

Original dimension

X 100 (%)

110

Original (Scale)

HARDDENCD

mm 1/2mm

Reference

10 20

100

Comparison point

JAPAN

110 120 130

JAPAN

110 120

130

STAINLESS

140

150

Shizuoka

HARDDENCD STAINLESS

140

150

Shizuoka

Copy

Paper feed direction

6) Check that the actual copy magnification ratio is within the specified range. (100 ± 1.0%). If it is not within the specified range, perform the following procedures.

7) Execute TC 48-01 to select the sub scanning direction copy magnification ratio adjustment mode. To select the adjustment mode, use the [←/→] key. (SCAN mode lamp ON)

8) Enter the new set value of sub scanning direction copy magnification ratio with the copy quantity set key, and press the [START] key.

Repeat procedures 1) - 8) until the sub scanning direction actual copy magnification ratio in 100% copying is within the specified range.

When the set value is changed by 1, the magnification ration is changed by 0.1%.

B. Image position adjustment

The employed test commands and the contents are as follows:

Mode

Print start position (Main cassette paper feed) (*) Print start position (2nd cassette paper feed)

Print start position (Manual paper feed)

Image lead edge void amount

Image scan start position

Image rear edge void amount

Display

Default LED TC

item

TRAY1 50 COPY mode lamp

Main cassette lamp

TRAY2 50 COPY mode lamp

2nd cassette lamp

MFT 50 COPY mode lamp

Manual feed lamp

DEN-A 50 PRINT mode lamp

RRC-A 50 SCAN mode lamp

DEN-B 50 COPY mode lamp

PRINT mode lamp SCAN mode lamp

50-01

Mode

Print center offset (Main cassette paper

Display

Default LED TC

item

TRAY1 50 COPY mode lamp

Main cassette lamp

feed) (*) Print center offset

(2nd cassette paper feed) Print center offset (Manual paper feed) 2nd print center offset (Main cassette

TRAY2 50 COPY mode lamp

2nd cassette lamp

50-10

MFT 50 COPY mode lamp

Manual feed lamp

SIDE2 50 PRINT mode lamp

Main cassette lamp

paper feed) The modes can be selected by pressing [←/→] key. (*): Support for the installation models. For non-installation models,

skip.

* In the 2nd print center offset adjustment, print is made forcibly as

1to2/Long Edge from OC regardless of duplex setting.

(1) Lead edge adjustment

1) Set a scale to the center of the paper lead edge guide as shown

below, and cover it with B4 or 8 1/2" x 14" paper.

2) Execute TC 50 - 01

3) Set the print start position (A: COPY mode lamp ON), the lead

edge void amount (B: PRINT mode lamp ON), the scan start position (C: SCAN mode lamp) to zero, and make a copy of the scale at 100%.

4) Measure the image loss (Rmm) of the scale.

Set C = 10 x R (mm). (Example: Set to 40.) When the value of C is increased by 10, the image loss is

decreased by 1mm. (Default: 50)

5) Measure the distance (Hmm) from the paper lead edge to the

image print start position. Set A = 10 x H (mm). (Example: Set to 50.) When the value of A is increased by 10, the image lead edge is

moved to the paper lead edge by 1mm. (Default: 50).

6) Set the lead edge void amount to B = 50 (2.5mm). (Default: 50)

When the value of B is increased by 10, the void is extended by about 0.1mm. (For 25 or less, however, the void amount is regarded as 0.)

* The SFP adjustment is made by adjusting the SPF image scan start

position after OC adjustment.

AL-1651CS ADJUSTMENTS 9 - 2

Page 65

(Example)

Distance from the paper lead edge to the image lead edge, H = 5mm

Image loss, R = 4mm

5mm

10mm

(2) Image rear edge void amount adjustment

1) Set a scale to the rear edge section of A4 or 11" x 8 1/2" paper size as shown in the figure below, and cover it with B4 or 8 1/2" x 14" paper.

B4 or 8 1/2″ × 14″ paper

Document guide

2) Execute TC 50-10 to select the print center offset (cassette paper feed) adjustment mode. The set adjustment value is displayed on the copy quantity display.

3) Make a copy and check that the copied center line is properly positioned. The standard value is 0 ±2mm from the paper center.

(Copy A)

2.0mm or less

Shift

Copy image

Copy paper folding line

A4 size rear edge

2) Execute TC 50 - 01 to select the image rear edge void amount adjustment mode. The set adjustment value is displayed on the copy quantity display.

3) Make a copy and measure the void amount of image rear edge.

Void amount (Standard value: 2 3mm)

Scale image

Paper rear edge

4) If the measurement value is out of the specified range, change the set value and repeat the adjustment procedure. The default value is 50.

(3) Center offset adjustment

1) Set the self-made test chart for the center position adjustment so that its center line is aligned with the center mark of the document guide.

• Test chart for the center position adjustment.

Draw a line at the center of A4 or 8 1/2" x 11" paper in the paper transport direction.

(Copy B)

(Paper feed direction)

2.0mm or less

Shift

Copy image

Copy paper folding line

4) If the measured value is out of the specified range, change the set value and repeat the adjustment procedure. When the set value is increased by 1, the copy image is shifted by

0.1mm toward the rear frame.

• For the manual paper feed, change the manual paper feed

adjustment mode and perform the similar procedures.

• Since the document center offset is automatically adjusted by the

CCD which scan the reference lines (F/R) on the back of document guide, there is no need to adjust manually.

2. Copy density adjustment

A. Copy density adjustment timing

The copy density adjustment must be performed in the following cases:

• When maintenance is performed.

• When the developing bias/grid bias voltage is adjusted.

• When the optical section is cleaned.

• When a part in the optical section is replaced.

• When the optical section is disassembled.

• When the OPC drum is replaced.

• When the main control PWB is replaced.

• When the EEPROM on the main control PWB is replaced.

• When the memory trouble (U2) occurs.

B. Note for copy density adjustment

1) Arrangement before execution of the copy density adjustment

• Clean the optical section.

• Clean or replace the charger wire.

• Check that the voltage at the high voltage section and the

developing bias voltage are in the specified range.

AL-1651CS ADJUSTMENTS 9 - 3

Page 66

C. Necessary tool for copy density adjustment

Test chart

• One of the following test charts: UKOG-0162FCZZ, UKOG-0089CSZZ, KODAK GRAY SCALE

• B4 (14" x 8 1/2") white paper

• The user program AE setting should be "3."

1 10

23456789

Test chart comparison table

UKOG0162FCZZ DENSITY

12345678910W

No. UKOG-

0089CSZZ DENSITY

0.1 0.2 0.3 0.5 1.9 0

No. KODAK

GRAY

123419A

SCALE

D. Features of copy density adjustment

For the copy density adjustment, the image data shift function provided in the image process LSI is used.

List of the adjustment modes

Auto Mode Brightness 1 step only Manual Mode Brightness 5 steps. Adjustment of only the center

brightness is made.

Photo Mode Brightness 5 steps. Adjustment of only the center

brightness is made.

Manual T/S mode

Brightness 5 steps. Adjustment of only the center brightness is made.

T/S Auto mode Brightness 1 step only

E. Copy density adjustment procedure

The copy density can be adjusted in 300dpi or in 600dpi.

Main code Sub code Resolution for copy density adjustment

For selection of modes, use the copy mode select key.

(1) Test chart (UKOG-0162FCZZ) setting

1) Place the test chart so that its edge is aligned with the A4 (Letter)

reference line on the document table. Then place a A4 (14" x 8 1/2") white paper on the test chart and close the document cover.

01 300dpi 02 600dpi

(2) Perform the adjustment in each mode.

1) Execute TC 46-01 (300dpi). To adjust in 600dpi, execute TC 46-

02.

2) Select the mode to be adjusted with the exposure mode select key. Set the exposure level to 3 (center) for all adjustment. (Except for the auto mode.)

Adjustment

mode

Display

item

Auto mode AE COPY mode lamp "3" is slightly

Text mode TEXT PRINT mode lamp "3" is slightly

Photo mode PHOTO SCAN mode lamp "3" is slightly

Text T/S mode TSTXT PRINT mode lamp

Auto T/S mode TSAE COPY mode lamp

3) Make a copy. Check the adjustment level (shown in the above table) of the exposure test chart (Sharp Gray Scale).

Non toner save mode

Toner save mode

1 10

23456789

Not copied.

1 10

23456789

Not copied.

(When too bright): Decrease the value displayed on the copy quantity

display.

(When too dark): Increase the value displayed on the copy quantity

display.

* The value can be set in the range of 1 - 99.

(1) Exposure mode, level display

(2) Mode select key

LED

Sharp gray chart

adjustment level

copied.

copied. "3" is slightly

SCAN mode lamp

copied. "3" is slightly

SCAN mode lamp

copied.

Sharp Gray Scale adjustment level

Slightly copied.

White paper

Test chart

AL-1651CS ADJUSTMENTS 9 - 4

Page 67

3. High voltage adjustment

4. Duplex adjustment

A. Main charger (Grid bias)

Note:

• Use a digital multi meter with internal resistance of 10MΩ or more

measurement.

• After adjusting the grid LOW output, adjust the HIGH output. Do not reverse the sequence.

Procedures

1) Set the digital multi meter range to DC700V.

2) Set the positive side of the test rod to the connector CN11-3

(GRID) of high voltage section of the power PWB and set the negative side to the frame ground (power frame).

3) Execute TC 8-02. (The main charger output is supplied for 30 sec

in the grid voltage HIGH output mode.)

4) Adjust the control volume (VRG1) so that the output voltage is 580

±12V.

VRG1

A. Adjusting the paper reverse position in memory

for duplex copying

This step adjusts the front surface printing (odd-number pages of a document set) in the S-D mode copying and the leading edge position of an image on even-number pages in the D-S mode.

That is, it covers the adjustment of the second surface printing mode (image loss at the front edge of an image) in which image data is once stored in memory.

The image data is read, starting from its front end in the document delivery direction (Reference direction of document setting in the OC mode)and stored in memory.

This stored image data is printed starting at the printing start position, in the order of last-stored data to the first-stored data.

In other words, the front edge image loss of the image can be adjusted by changing the document read end position.

(Adjustment procedure)

1) Preparing test chart (Draw a scale at the rear end of one side of a sheet of A4 white paper or letter paper)

510

B. DV bias check

Note: • A digital multi meter with internal resistance of 1GΩ must be

use for correct check.

• The adjustment volume is locked, and no adjustment can be made.

Procedures

1) Set the digital multi meter range to DC500V.

2) Set the positive side of the test rod to the connector CN-10-1 (DV BIAS) and set the negative side to the frame ground (power frame).

3) Execute TC 25-01 to output the developing bias for 30sec, and check that the output is –400±8V.

VRDV

2) Set the test chart so that the scale is positioned as shown below, in the S-D mode and the D-S mode.

Scale (S-D mode) Scale (D-S mode)

3) Execute test command 50-18.

Mode

OC memory reverse output position

SPF memory reverse output position

Select the SPF memory reverse output position, and press [START] key to make a copy.

Adjust the setting so that the front edge image loss is less than 4.0 mm in the R-SPF mode. An increase of 1 in setting represents an increase of 0.1 mm in image loss.

The front edge of the scale on test chart

Display

Front edge of paper

Default LED

item

OC 50 COPY mode lamp

SPF 50 PRINT mode lamp

Void area

AL-1651CS ADJUSTMENTS 9 - 5

less than 4 mm

510

Page 68

2) Set the test chart on the document glass as shown below.

2nd printing surface where scale is printed (lower side)

B. Adjusting trailing edge void in duplex copy mode

This is the adjustment of the first surface printing mode (rear end void) in duplex copying.

In a duplex copying operation, the paper is delivered starting from the rear end of the first printing surface. It is therefore necessary to make a void area at the rear end on the first printing surface to prevent paper jam at the fusing part.

There are two adjustment modes:

1) Image cut rear end void quantity (R-SPF) 50-19 (SCAN mode lamp) The size (length) of a document read from the R-SPF is detected, the image at the trailing edge of the first printing surface is cut to make a void area. (The adjustment of void quantity at the time when the cassette paper size is not recognized.)

2) Paper trailing edge void quantity 50-19 (PRINT mode lamp) This adjustment is made when the cassette paper size is recognized. The trailing edge void quantity can be adjusted by changing the trailing edge image laser OFF timing.

The paper void quantity should be first adjusted before the image cut trailing edge void quantity (R-SPF) is adjusted.

The adjustment modes can be selected by pressing [ (Adjustment range; 1 – 99)

Enter the adjustment value and press [START] key to save the set value and make a copy. (The paper information is cleared for every copy.)

When the set value is increased by 1, the void amount is increased by about 0.1mm.

Mode

Paper rear edge void amount

Print start position (Duplex back surface)

* The initial value of duplex setting is 2to2.

(Adjustment procedure)

Display

DEN-B 50 PRINT mode lamp

RRC-D 50 SCAN mode lamp

Default LED

item

(1) Paper trailing edge void quantity

1) Preparing test chart (Draw a scale at the rear end of one side of a sheet of A/4 white paper or letter paper)

←/→] key.

Document guide

The trailing edge has a scale

Table glass

3) Execute test command 50-19 to turn on the PRINT mode lamp and make the printing mode in OC-D mode. Make a copy of the test chart to check the void area of the scale on the image.

Void position to be check

Paper

The trailing edge void on the first printing surface is shown above.

Adjust the setting so that the void area is 4 - 5 mm. An increase in 1 of setting represents 0.1 mm in void area.

(2) Image cut trailing edge void quantity (R-SPF)

1) Set the test chart so that the scale is positioned as shown below.

Scale (D-D mode)

2) Execute test command 50-19 to turn on the SCAN mode lamp(on the operation panel) and make the printing mode in the D-D mode.

3) Remove and reinsert the cassette.

Note: Make sure to carry out this step before making a copy during

this adjustment.

4) Make a copy and check the void area of the scale on the image. Adjust the setting so that the void area is 2 - 4 mm. An increase of 1 in setting represents an increase of 0.1 mm in void area. l Void position to be checked

AL-1651CS ADJUSTMENTS 9 - 6

Page 69

5. SPF (RSPF) scan position automatic adjustment

Place a black chart so that it covers the SPF scan glass and the OC glass together, and close the OC cover.

When test command 53-08 is executed, the current adjustment value is displayed as the initial display.

* Default is 1. Adjustment range is 1 – 99. Adjustment unit 1 = about

0.127mm

* If the values are kept as the default values, SPF scan is not per-

formed properly. The front area of the proper scan position may be scanned.

In case of AUTO, press [START] key, and the mirror unit scans from the home position to the SPF scan position with the adjustment value displayed. The SPF glass cover edge position is calculated from the difference between the SPFG glass cover edge and the OC side document glass CCD output level. If the adjustment is normal, the adjusted value is displayed. If abnormal, the error LED lights up with the current set value displayed.

During the error LED is lighted, when [START] key is pressed again, execution is performed again.

Mode

SPF scan position auto adjustment

SPF scan position manual adjustment

Operation

The operation is similar to test command 46-01. (In MANUAL) OK/ERR display in AUTO

53-08 SPF AUTO AUTO 100% ** OK

* Use a black chart (UKOG-0011QSZZ) or prepare a chart as shown

below. Chart size: 300 x 100, prepared with cutting sheet No. 791 (Black) or an equivalent one.

Reason: To prevent erroneous detection by disturbing light of a

fluorescent lamp, etc.

Display

AUTO 1 COPY mode lamp

MANU 1 PRINT mode lamp

Default LED

item

53-08 SPF AUTO AUTO 100% ** ERR

6cm or more is required.

The size of the black chart (UKOG-0011QSZZ) is 297 x 420. Divide it into four for use.

6. RSPF (SPF) mode sub scanning direction magnification ratio adjustment

Note: Before performing this adjustment, be sure to check that the OC

mode adjustment in copying has been completed.

1) Put a scale on the original table as shown below, and make a normal copy (100%) on the front and the back surfaces to make a test chart.

Note: Since the printed copy is used as a test chart, put the scale in

paralled with the edge lines.

2) Set the test chart on the RSPF and make a duplex copy (D-D or DS) in the normal ratio (100%).

3) Compare the scale image and the actual image. If necessary, perform the following adjustment procedures.

4) Execute TC 48-05.

5) The current front surface sub scanning direction magnification ratio correction value is displayed in two digits on the display section. To select SIDE1 and SIDE2, use [←/→] keys.

6) Enter the set value and press the start key. When adjusting the RSPF, use [2-SIDED COPY] key to select

single/duplex after entering the one page print mode, performing 2page single copy.

Mode

Sub scan magnification ratio adjustment on the surface of SPF/ RSPF document

Sub scan magnification ratio adjustment on the surface of RSPF document

* When there is no document in SPF, copy is inhibited.

Adjustment

mode

Sub scanning direction magnification ratio (SPF/RSPF mode)

Spec value TC Set value

At normal: ±1.0%

Display

item

SIDE1 50 COPY

SIDE2 50 PRINT

48-5 Add 1:

Default LED

0.1% increase Reduce 1: 0.1% decrease

mode lamp

Setting

range

1 – 99

AL-1651CS ADJUSTMENTS 9 - 7

Page 70

7. Automatic black level correction

a. Cases when the adjustment is required

1) When the main PWB is replaced.

2) When the EEPROM in the main PWB is replaced.

3) When "U2" trouble occurs.

4) When repairing or replacing the optical section.

b. Adjustment procedure

Used to acquire the black level target value used for the black level adjustment of white balance.

When test command 63-02 is executed, the current correction value is displayed in 3 digits of 12bit hexadecimal number.

Place the gray gradation chart (UKOG-0162FCZZ) used as the correction document so that the density 10 (black side) comes on the left side and that the chart is upside down at the center of the plate left center.

Chart back surface

When [ENTER/START] key is pressed, the mirror base unit scans the chart and calculates the correction value.

After completion of correction, the corrected value is displayed on the LCD.

* Default: 0 * If the value is set to the default, operation is made with 0x60.

c. Operation

1) Initial display

63-02 BLACK LEVEL 0

2) [ENTER/START] Correction start

63-02 BLACK LEVEL EXECUTING...

<During canceling - When C/CA is pressed-> After canceling, the machine goes into the sub code entry standby

mode.

THE JOB IS BEING CANCELED.

3) After execution

63-02 BLACK LEVEL *** OK

3) In case of an error

63-02 BLACK LEVEL *** ERR

AL-1651CS ADJUSTMENTS 9 - 8

Page 71

[10] TEST COMMAND, TROUBLE CODES

1. Entering the test command mode

To enter the serviceman test command mode, press the keys as follows: [#] key

→ [*] key → [C] key → [*] key

To cancel the test command mode, press the [CA] key.

2. Key rule

[10KEY]: Entry of MAIN CODE/SUB CODE

[

←/→]: Selection of MAIN CODE/SUB CODE

[ENTER/START]: Settlement

[C]: (Interrupting operation check) Returns to the upper hierarchy.

[CA]: Exits from the test command mode.

Selection of an item Setup of an adjustment value in case of test commands for adjustment

Selection of an item

<In case of test commands for print> [ENTER]: Settlement (Without print) [START]: Settlement/Print

[ENTER] After pressing: Settles the item and returns to the upper hierarchy. [ENTER] Before pressing: Without settling the item, returns to the upper hierarchy.

In case of test command of operation check, terminates the operations.

For a test command of adjustment, the display returns to the initial display (00-00).

3. List of test commands

Main

Sub

code

1 01 Mirror scan (SCAN CHK)

02 Mirror home position sensor (MHPS) status display

(MHP-SENSOR)

06 Mirror scan aging (SCAN AGING)

2 01 Single Paper Feeder (SPF) aging (SPF AGING)

02 SPF sensor status display (SPF SENSOR) 03 SPF motor operation check (SPF MOTOR CHK) 06 RSPF resist clutch operation check (RSPF RES.CHK) 08 SPF paper feed solenoid operation check (SPF SPUS

CHK)

09 RSPF reverse solenoid operation check (RSPF SPFS

CHK)

10 RSPF paper exit gate solenoid operation check

(RSPF SGS CHK) 3 03 Shifter operation check (SHIFTER CHK) 5 01 Operation panel display check (LCD/LED CHK)

02 Fusing lamp, cooling fan operation check (HT LAMP

CHK)

03 Copy lamp ON check

(C-LAMP CHK) 6 01 Paper feed solenoid (CPFS1, CPFS2, MPFS)

7 01 Check of warm-up display and aging with JAM (W-

8 01 Developing bias output (DVLP BIAS SET.)

operation check (PSOL CHK)

02 Resist roller solenoid (RRS) operation check (RES.R

SOL CHK)

UP/AGING)

06 Interval aging (INTERVAL AGING) 08 Shift to copy with warm-up display (Shift to equivalent

to CA key) (W-UP C-MODE)

02 Main charger output (Grid HIGH) (MHV(H) SET.) 03 Main charger output (Grid LOW) (MHV(L) SET.) 06 Transfer charger output (THV SET.)

Contents

Main

Sub

code

9 01 Duplex motor normal rotation check (DPLX ROT.)

02 Duplex motor reverse rotation check (DPLX

ROT.REV.) 10 00 Toner motor operation (TONER MOTOR) 14 00 Cancel of trouble other than U2 (TRBL CANC.) 16 00 U2 trouble cancel (U2 TRBL CANC.) 22 04 JAM total counter display (JAM TTL CNT)

05 Total counter display (TTL CNT) 08 SPF counter display (SPF CNT) 12 Drum counter display (DRUM CNT) 14 ROM version display (ROM VER.) 16 Duplex counter display (DPLX CNT) 17 Copy counter display (COPIES CNT) 18 Printer counter display (PRT.CNT) 19 Scanner mode counter display (S-MODE CNT) 21 Scanner counter display (SCAN CNT) 22 SPF JAM counter display (S JAM CNT)

24 01 JAM total counter clear (JAM TTL CLR.)

04 SPF counter clear (SPF CLR.) 05 Duplex counter clear (DPLX CLR.) 07 Drum counter clear (DRUM CLR.) 08 Copy counter clear (COPIES CLR.) 09 Printer counter clear (PRT.CLR.) 13 Scanner counter clear (SCAN CLR.) 14 SPF JAM total counter clear (S JAM TTL CLR.) 15 Scanner mode counter clear (S-MODE CLR.)

25 01 Main motor operation check (MAIN MOTOR CHK)

10 Polygon motor operation check (LSU CHK)

Contents

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 1

Page 72

Main

Sub

code

26 01 Manual feed setting (BYPASS)

02 (R)SPF setting (SPF/RSPF) 03 Second cassette setting (2ND TRAY) 04 Main unit duplex setting (DPLX) 06 Destination setting (DESTINATION) 07 Machine conditions check (CPM) 20 Rear edge void setting (END EDGE) 30 CE mark support control ON/OFF (CE MARK) 38 Cancel of stop at drum life over (DRUM LIFE END) 39 Memory capacity check (MEM.CHK) 40 Polygon motor OFF time setting (Time required from

completion of printing to turning OFF the motor) (LSU MOTOR OFF)

42 Transfer ON/OFF timing control setting (TC ON

TIMING) 43 Side void amount setting (SIDE VOID) 62 Energy-save mode copy lamp setting (C-LAMP E-S) 64 Heater control setting in scanner mode (S-MODE

HEATER)

30 01 Paper sensor status display (P-SENSOR) 41 06 OC cover float detection level (OC FLOAT LEVEL) 43 01 Fusing temperature setting (Normal copy) (FU TEMP)

04 Fusing temperature setting in multi coy (FU TEMP

MULTI) 05 Fusing temperature setting in duplex copy (FU TEMP

DPLX) 09 Postcard size paper fusing control setting (FU CTR P-

CARD) (Japan model only) 11 Postcard size paper fusing temperature setting (FU

TEMP P-CARD) (Japan model only) 14 Fusing start temperature setting (FU TEMP START)

Contents

Main

Sub

code

46 01 Copy density adjustment (300dpi) (EXP.LEVEL 300)

02 Copy density adjustment (600dpi) (EXP.LEVEL 600) 18 Image contrast adjustment (300dpi) (GAMMA 300) 19 Exposure mode setting (AE MODE) 20 SPF exposure correction (EXP.LEVEL SPF) 29 Image contrast adjustment (600dpi) (GAMMA 600) 30 AE limit adjustment (AE LIMIT) 31 Image sharpness adjustment (SHARPNESS) 32 Copier color reproduction setting (COLOR

REAPPEAR)

48 01 Mains can/sub scan direction magnification ratio

49 01 Download mode (DOWNLOAD MODE) 50 01 Lead edge image position (LEAD EDGE)

51 02 Resist amount adjustment (RESIST ADJ.) 53 08 SPF scan position automatic adjustment (SPF AUTO) 61 03 HSYNC output check (LSU CHK) 63 01 Shading check (SHADING CHK)

64 01 Self print (1by2 mode) (SELF PRT.)

(COPY MAG.)

05 SPF/RSPF mode sub scan direction magnification

ratio in copying (SPF/RSPF MAG.)

06 Copy lead edge position adjustment (SPF/RSPF)

(SPF/RSPF EDGE) 10 Print center offset adjustment (PRT.OFF-CENTER) 12 Document feed off-center adjustment (ORG.OFF-

CENTER) 18 Memory reverse position adjustment in duplex copy

(DPLX REVERSE) 19 Duplex copy rear edge void adjustment (DPLX END

EDGE)

02 Black level automatic correction (BLACK LEVEL)

Contents

4. Descriptions of various test commands

Main

Sub

code

1 01 Mirror scan (SCAN CHK) [Function]

02 Mirror home position sensor

(MHPS) status display (MHP-SENSOR)

Contents Details of function/operation

When [ENTER/START] key is pressed, the home position is checked and the mirror base performs full scan at the speed of the set magnification ratio.

During operation, the set magnification ratio is displayed. The mirror home position sensor status is displayed with the “COPY mode lamp”. (When the mirror is

in the home position, the lamp lights up.) During operation, the copy lamp lights up. When [C] key is pressed, if the operation is on the way, it is terminated and the machine goes to the

sub code entry standby mode.

[Operation]

1) Initial display

01-01 SCAN CHK

- 100% +

2) [ZOOM]

01-01 SCAN CHK

- 78% +

[Function]

Monitors the mirror home position sensor, and makes the "COPY mode lamp" turn on during the sensor ON status.

[Operation]

1) Initial display

01-02 MHP-SENSOR EXECUTING...

2) [

←]

01-01 SCAN CHK

- 99% +

2) [

→]

01-01 SCAN CHK

- 101% +

3) [ENTER/START]

01-01 SCAN CHK EXECUTING... - 78% +

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 2

Page 73

Main code

Sub

code

Contents Details of function/operation

1 06 Mirror scan aging (SCAN

AGING)

2 01 Single Paper Feeder (SPF)

aging (SPF AGING)

02 SPF sensor status display

(SPF SENSOR)

[Function]

When [ENTER/START] key is pressed, the mirror base performs full scan at the speed of the set magnification ratio.

During operation, the set magnification ratio is displayed. After 3sec, the mirror base performs full scan again.

∗ When [ENTER/START] key is pressed once, the ready lamp remains OFF.

The mirror home position sensor status is displayed on the "COPY mode lamp." (The lamp is ON when the mirror is in the home position.)

During aging, the copy lamp is ON.

[Operation]

The operation is similar to test command 1-01.

[Function]

When [ENTER/START] key is pressed, the set magnification ratio is acquired and single-face document transport is performed in the case of SPF or duplex document transport in the case of R-SPF.

However, the operating conditions don't matter and the operation is not stopped even in case of a jam. Also the magnification ratio is displayed on the LCD.

[Operation]

The operation is similar to test command 1-01.

[Function]

The ON/OFF status of the SPF sensors can be checked with the LCD. When a sensor is ON, the sensor name is displayed on the LCD.

Sensor Display item Document set sensor SPID SPF document transport sensor SPPD SPF paper feed cover open/close sensor SDSW

03 SPF motor operation check

(SPF MOTOR CHK)

06 RSPF resist clutch operation

check (RSPF RES.CHK)

08 SPF paper feed solenoid

operation check (SPF SPUS CHK)

09 RSPF reverse solenoid

operation check (RSPF SPFS CHK)

[Operation]

1) Initial display 2) When the sensor is ON:

02-02 SPF SENSOR

02-02 SPF SENSOR SPID SPPD SDSW

[Function]

When [ENTER/START] key is pressed, the motor rotates for 10sec at the speed corresponding to the set magnification ratio.

[Operation]

The operation is similar to test command 1-01.

[Function]

When [ENTER/START] key is pressed, the RSPF resist clutch (SRRC) repeats ON for 500ms and OFF for 500ms 20 times.

[Operation]

1) Initial display

02-06 RSPF RES.CHK EXECUTING...

[Function]

The SPF paper feed solenoid (SPUS) repeats ON for 500ms and OFF for 500ms 20 times by the use of the solenoid drive control Bios.

[Operation]

1) Initial display

02-08 SPF SPUS CHK EXECUTING...

[Function]

The SPF reverse solenoid (SPFS) repeats ON for 500ms and OFF for 500ms 20 times by the use of the solenoid drive control Bios.

[Operation]

1) Initial display

02-09 RSPF SPFS CHK EXECUTING...

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 3

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Main code

Sub

code

Contents Details of function/operation

2 10 RSPF paper exit gate

solenoid operation check (RSPF SGS CHK)

[Function]

The SPF paper exit gate solenoid (SGS) repeats ON for 500ms and OFF for 500ms 20 times by the use of the solenoid drive control Bios.

[Operation]

1) Initial display

02-10 RSPF SGS CHK EXECUTING...

3 03 Shifter operation check

(SHIFTER CHK)

5 01 Operation panel display

check (LCD/LED CHK)

[Function]

The shifter is moved back and forth in four reciprocations.

[Operation]

1) Initial display

03-03 SHIFTER CHK EXECUTING...

[Function]

<LED check mode (All ON/Individual ON)> When [ENTER/START] key is pressed, all the LCD's on the operation panel are turned ON (all pixels ON).

After 5sec of ON, the machine goes into the sub code entry standby mode. When [MODE SWITCH] key is pressed under the all ON state, the mode is shifted to the individual

ON mode, where the LED's are turned on one by one from the left upper end to the left lower side then from the right upper side to the right lower side. (All the pixels of LCD are lighted simultaneously.) After lighting all the LCD's sequentially, all the LCD's are lighted simultaneously. After 5sec from lighting all the LCD's simultaneously, the machine goes into the sub code entry standby mode. (Cycle of individual ON mode: ON 300ms, OFF 20ms)

When [C] key is pressed in the LED check mode, the machine goes into the sub code entry standby mode.

When [START] key is pressed, the machine goes into the key input check mode.

<Key input check mode> When the machine goes into the key input check mode, the LCD displays 0.

Every time when a key on the operation panel is pressed, the entry number is added on the LCD and displayed.

Once a key is pressed, it is not recounted. When [START] key is pressed, counting is made and the machine goes into the LED ON check mode

(LED all ON status) after 3sec. When [C] key is pressed for the first time, it is counted. When it is pressed for the second time, the

machine goes into the sub code entry mode. When [CA] key is pressed for the first time, it is counted. When it is pressed for the second time, the

machine goes out from the test command mode.

(Note in the key input check mode)

• Be sure to press [START] key at the last. (If it is pressed on the way, the machine goes into the LED ON check mode.) (LED all ON status)

• Multi key input is ignored.

[Operation]

1) Initial display

■■■■■■■■■■■■■■■■■■■■■

2) When [MODE SWITCH] key is pressed, the machine goes into the individual ON mode.

1) Initial display 2) [ENTER/START]

05-01 LCD/LED CHK. 0

05-01 LCD/LED CHK. **

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 4

Page 75

Main code

Sub

code

Contents Details of function/operation

5 02 Fusing lamp, cooling fan

operation check (HT LAMP CHK)

[Function]

When [ENTER/START] key is pressed, the fusing lamp repeats ON for 500ms and OFF for 500ms 5 times. During this period, the cooling fan motor rotates. The motor should be rotated at a high (normal) speed.

[Operation]

1) Initial display

05-02 HT LAMP CHK EXECUTING...

03 Copy lamp ON check

(C-LAMP CHK)

6 01 Paper feed solenoid

(CPFS1, CPFS2, MPFS) operation check (PSOL CHK)

02 Resist roller solenoid (RRS)

operation check (RES.R SOL CHK)

[Function]

When [ENTER/START] key is pressed, the copy lamp turns ON for 5sec.

[Operation]

1) Initial display

05-03 C-LAMP CHK EXECUTING...

[Function]

When [ENTER/START] key is pressed, the selected paper feed solenoid repeats ON for 500ms and OF for 500ms 20times.

←/→/10KEY] is pressed, the paper feed solenoid setting is switched.

When [

Code number Setting Remark

0 CPFS1 1 CPFS2 Operation is possible only when No. 2 cassette is installed. 2MPFS

[Operation]

1) Initial display

06-01 PSOL CHK 0:CPFS1

[→/10KEY]

06-01 PSOL CHK 1:CPFS2

←/10KEY]

2) [

06-01 PSOL CHK 2:MPFS

3) [ENTER/START]

06-01 PSOL CHK EXECUTING...

4) Returns to the initial display.

[Function]

When [ENTER/START] key is pressed, the resist solenoid repeats ON for 500ms and OFF for 500ms 20 times.

[Operation]

1) Initial display

06-02 RES.R SOL CHK EXECUTING...

7 01 Check of warm-up display

and aging with JAM (W-UP/ AGING)

[Function]

Copying is repeated to make the set quantity of copies. When the test command is executed, warm-up is started and warm-up time is added for every second from 0 and displayed. When warm-up is completed, addition is stopped. When [CA] key is pressed, the ready lamp lights up. After that, enter the copy quantity with [10KEY] and press [ENTER/START] key to repeat copying of the set quantity (interval 0sec). To cancel the test command, turn off the power or execute a test command which causes hardware reset.

[Operation]

1) Initial display 2) After 10sec

07-01 W-UP/AGING 0

07-01 W-UP/AGING 10

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 5

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Main code

Sub

code

Contents Details of function/operation

7 06 Interval aging (INTERVAL

AGING)

[Function]

Copying is repeated to make the set quantity of copies. When the test command is executed, warm-up is performed and the ready lamp is lighted. Enter the copy quantity with the [10KEY] and press [ENTER/START] key, and copying is executed to make the set quantity of copies, and the ready state is kept for 3sec, and copying is executed again to make the set quantity of copies. These operations are repeated. To cancel the test command, turn off the power or execute a test command which executes hardware reset.

[Operation]

1) Initial display (Basic display of copy)

READY TO COPY 100% A4 0

08 Shift to copy with warm-up

display (Shift to equivalent to CA key) (W-UP C-MODE)

8 01 Developing bias output

(DVLP BIAS SET.)

02 Main charger output (Grid

HIGH) (MHV(H) SET.)

[Function]

Enter the test command code, and warm-up is started and warm-up time is counted for every second from 0 and displayed. When [CA] key is pressed during counting up, "0" is displayed on the display and counting is stopped. However, warm-up is continued. After completion of warm-up, counting is terminated. (The aging function is removed from test command 7-01.)

[Operation]

1) Initial display 2) After 10sec

07-08 W-UP C-MODE 0

07-08 W-UP C-MODE 10

[Function]

When [ENTER/START] key is pressed, the developing bias signal is turned ON for 30sec. When, however, an actual output value is measured, use test command 25-01. After completion of this process, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

08-01 DVLP BIAS SET. EXECUTING...

[Function]

When [ENTER/START] key is pressed, the main charger is outputted for 30sec in the grid voltage HIGH move.

After completion of this process, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

08-02 MHV(H) SET. EXECUTING...

03 Main charger output (Grid

LOW) (MHV(L) SET.)

06 Transfer charger output

(THV SET.)

[Function]

When [ENTER/START] key is pressed, the main charger is outputted for 30sec in the grid voltage LOW move.

After completion of this process, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

08-03 MHV(L) SET. EXECUTING...

[Function]

When [ENTER/START] key is pressed, the transfer charger is outputted for 30sec. After completion of this process, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

08-03 THV SET. EXECUTING...

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 6

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Main code

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code

Contents Details of function/operation

9 01 Duplex motor normal

rotation check (DPLX ROT.)

[Function]

Use the duplex motor Bios to drive the duplex motor in the normal direction (paper exit direction) for 30sec.

After completion of this process, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

09-01 DPLX ROT. EXECUTING...

02 Duplex motor reverse

rotation check (DPLX ROT.REV.)

10 00 Toner motor operation

(TONER MOTOR)

14 00 Cancel of trouble other than

U2 (TRBL CANC.)

16 00 U2 trouble cancel (U2 TRBL

CANC.)

[Function]

Use the duplex motor Bios to drive the duplex motor in the reverse direction for 30sec. After completion of this process, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

09-02 DPLX ROT.REV. EXECUTING...

[Function]

When [ENTER/START] key is pressed, the toner motor is rotated for 30sec. After completion of this process, the machine goes into the main code entry standby mode.

[Operation]

1) Initial display

10-00 TONER MOTOR EXECUTING...

[Function]

Used to cancel troubles other than U2.

∗ Cancel troubles such as H trouble which writes data into EEPROM, and perform hardware reset.

[Operation]

1) Initial display

14-00 TRBL CANC. CLEARED

[Function]

Used to cancel U2 trouble. When [ENTER/START] key is pressed, check sum of the total counter in the EEPROM is rewritten

and hardware reset is made.

[Operation]

1) Initial display

16-00 U2 TRBL CANC. CLEARED

22 04 JAM total counter display

(JAM TTL CNT)

05 Total counter display (TTL

CNT)

08 SPF counter display (SPF

CNT)

[Function]

The JAM total counter is displayed.

[Operation]

1) Initial display

22-04 JAM TTL CNT ***,***

[Function]

The total counter value is displayed.

[Operation]

1) Initial display

22-05 TTL CNT ***,***

[Function]

The SPF counter is displayed.

[Operation]

1) Initial display

22-08 SPF CNT ***,***

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 7

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Main code

Sub

code

Contents Details of function/operation

22 12 Drum counter display

(DRUM CNT)

[Function]

The drum counter is displayed.

[Operation]

1) Initial display

22-12 DRUM CNT ***,***

14 ROM version display (ROM

VER.)

16 Duplex counter display

(DPLX CNT)

17 Copy counter display

(COPIES CNT)

[Function]

The P-ROM version is displayed. Press [←

/→/10KEY] to switch the display version.

Code number Version Display item

0 Main unit Program MAIN PROG. 1 IMC Program IMC PROG. 2 FAX Program FAX PROG. 3 LCD DATA LCD DATA

[Operation]

1) Initial display 2) [→/10KEY]

22-14 ROM VER. MAIN PROG. 00.00

22-14 ROM VER. IMC PROG. 00.00

←/10KEY]

2) [

22-14 ROM VER. LCD DATA 00.00

[Function]

The duplex counter is displayed.

[Operation]

1) Initial display

22-16 DPLX CNT ***,***

[Function]

The copy counter is displayed.

[Operation]

1) Initial display

22-17 COPIES CNT ***,***

18 Printer counter display

(PRT.CNT)

19 Scanner mode counter

display (S-MODE CNT)

21 Scanner counter display

(SCAN CNT)

[Function]

The printer counter is displayed.

[Operation]

1) Initial display

22-18 PRT.CNT ***,***

[Function]

The scanner mode counter is displayed.

[Operation]

1) Initial display

22-19 S-MODE CNT ***,***

[Function]

The scanner counter is displayed.

[Operation]

1) Initial display

22-21 SCAN CNT ***,***

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 8

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Contents Details of function/operation

22 22 SPF JAM counter display (S

JAM CNT)

[Function]

The SPF JAM counter is displayed.

[Operation]

1) Initial display

22-22 S JAM CNT ***,***

24 01 JAM total counter clear (JAM

TTL CLR.)

04 SPF counter clear (SPF

CLR.)

05 Duplex counter clear (DPLX

CLR.)

07 Drum counter clear (DRUM

CLR.)

[Function]

When [ENTER/START] key is pressed, the JAM total counter is cleared to 0 and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-01 JAM TTL CLR. CLEARED 000,000

[Function]

When [ENTER/START] key is pressed, the SPF counter value is cleared to 0 and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-04 SPF CLR. CLEARED 000,000

[Function]

When [ENTER/START] key is pressed, the duplex counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-05 DPLX CLR. CLEARED 000,000

[Function]

When [ENTER/START] key is pressed, the drum counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-07 DRUM CLR. CLEARED 000,000

08 Copy counter clear (COPIES

CLR.)

09 Printer counter clear

(PRT.CLR.)

13 Scanner counter clear

(SCAN CLR.)

[Function]

When [ENTER/START] key is pressed, the copy counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-08 COPIES CLR. CLEARED 000,000

[Function]

When [ENTER/START] key is pressed, the printer counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-09 PRT.CLR. CLEARED 000,000

[Function]

When [ENTER/START] key is pressed, the scanner counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-13 SCAN CLR. CLEARED 000,000

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 9

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Contents Details of function/operation

24 14 SPF JAM total counter clear

(S JAM TTL CLR.)

[Function]

When [ENTER/START] key is pressed, the SPF JAM total counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-14 S JAM TTL CLR. CLEARED 000,000

15 Scanner mode counter clear

(S-MODE CLR.)

25 01 Main motor operation check

(MAIN MOTOR CHK)

10 Polygon motor operation

check (LSU CHK)

[Function]

When [ENTER/START] key is pressed, the scanner mode counter value is cleared to 0, and "000,000" is displayed on the LCD.

[Operation]

1) Initial display

24-15 S-MODE CLR. CLEARED 000,000

[Function]

When [ENTER/START] key is pressed, the main motor (and the duplex motor in the case of a duplex model) is operated for 30sec.

To reduce toner consumption, if the developing unit is installed, the developing bias, the main charger, and the grid are also outputted.

In this case, laser discharge is required when stopping the motor, the polygon motor is also operated at the same time. Check for installation of the developing unit. If it is not installed, the high voltage above is not outputted and only the motor is rotated.

To check the developing bias, install the developing unit. After completion of 30sec operation, the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

25-01 MAIN MOTOR CHK EXECUTING...

[Function]

When [ENTER/START] key is pressed, the Bios is called to rotate the polygon motor for 30sec. After completion of 30sec operation, the operation is turned off with the Bios and the machine goes into the sub code entry standby mode.

[Operation]

1) Initial display

25-10 LSU CHK EXECUTING...

26 01 Manual feed setting

(BYPASS)

02 (R)SPF setting (SPF/RSPF) [Function]

[Function]

When the test command is executed, the current set bypass is displayed. Enter the code number corresponding to the bypass and press [ENTER/START] key to save the setting.

Code number Bypass Display item

0 Single bypass SINGLE 1 Multi bypass MULTI

∗ For single bypass, there is no schedule for production.

[Operation]

The operation is similar to test command 21-01.

When this test command is executed, the current set SPF is displayed. Enter the code number corresponding to the desired SPF and press [ENTER/START] key to save the setting.

Code number SPF Display item

0SPF NO SPF OFF 1 SPF YES SPF ON 2 RSPF YES RSPF ON

[Operation]

The operation is similar to test command 21-01.

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26 03 Second cassette setting

(2ND TRAY)

04 Main unit duplex setting

(DPLX)

06 Destination setting

(DESTINATION)

07 Machine conditions check

(CPM)

[Function]

When this test command is executed, the current set second cassette is displayed. Enter the code number corresponding to the desired second cassette and press [ENTER/START] key to save the setting.

Code number Second cassette Display item

0 Second cassette NO OFF 1 Second cassette YES ON

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the current set duplex is displayed. Enter the code number corresponding to the desired duplex and press [ENTER/START] key to save the setting.

Code number Duplex Display item

0 Duplex NO OFF 1 Duplex YES ON

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the current set destination is displayed. Enter the code number corresponding to the desired destination and press [ENTER/START] key to save the setting.

Code number Destination Display item

0 Inch series INCH 1 EX Japan AB series AB 2 Japan AB series – 3 China (EX Japan AB series + China paper support) CHINA

∗ For Japan AB series, there is no schedule for production.

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the current machine setting is displayed.

20 Rear edge void setting (END

EDGE)

CPM Coy quantity Remark 10 CPM 10 12 CPM 12 13 CPM 13 14 CPM 14 15 CPM 15 16 CPM 16

[Operation]

1) The machine setting is displayed.

26-07 CPM 10 CPM

[Function]

When this test command is executed, the current set rear edge void is displayed. Enter the code number corresponding to the desired rear edge void and press [ENTER/START] key to save the setting.

Code number Setting Display item Remark

0 Rear edge void NO OFF 1 Rear edge void YES ON Default

[Operation]

The operation is similar to test command 21-01.

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26 30 CE mark support control ON/

OFF (CE MARK)

38 Cancel of stop at drum life

over (DRUM LIFE END)

39 Memory capacity check

(MEM.CHK)

[Function]

When this test command is executed, the current set CE mark support control is displayed. Enter the code number corresponding to the desired CE mark support control and press [ENTER/START] key to save the setting.

Code number Setting Display item Remark

0 CE mark support control OFF OFF Default (100V series) 1 CE mark support control ON ON

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the current setting is displayed. Enter the code number corresponding to the desired setting and press [ENTER/START] key to save the setting.

Code number Setting Display item Remark

0 Stop at drum life over STOP Default 1 Cancel of stop at drum life over NONSTOP

[Operation]

The operation is similar to test command 21-01.

[Function]

When the test command is executed, the currently installed SDRAM of the main unit is displayed.

Code number Setting Remark

88 MBYTE

[Operation]

1) Memory capacity display

26-39 MEM.CHK 8 MBYTE

40 Polygon motor OFF time

setting (Time required from completion of printing to turning OFF the motor) (LSU MOTOR OFF)

42 Transfer ON/OFF timing

control setting (TC ON TIMING)

[Function]

When this test command is executed, the current setting is displayed. Enter the code number corresponding to the desired setting and press [ENTER/START] key to save the setting.

Code number Setting Display item Remark

00sec0 SEC. 1 30sec 30 SEC. Default 2 60sec 60 SEC. 3 90sec 90 SEC.

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the currently set value of the transfer ON timing is displayed (initial display), and the set value is saved. (Setting range: 0 – 9, Default: 5)

Code Setting Remark

00 msec 1 40 msec 2 –30 msec 3 –20 msec 4 –10 msec 5 0 msec Default 6 +10 msec 7 +20 msec 8 +30 msec 9 +40 msec

∗ The default “5” of transfer ON timing is “330ms passed from PS release.” ∗ When set to “0,” it is the same as setting to “5.”

[Operation]

The operation is similar to test command 21-01.

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26 43 Side void amount setting

(SIDE VOID)

62 Energy-save mode copy

lamp setting (C-LAMP E-S)

[Function]

When this test command is executed, the currently set code of the side void quantity is displayed (initial display), and the set data are saved. (Setting range: 0 – 10, Default: 4 (= One side 2.0mm))

Code Setting Remark

00 mm4

10.5 mm

21.0 mm

31.5 mm 4 2.0 mm Default

52.5 mm

63.0 mm

73.5 mm

84.0 mm

94.5 mm

10 5.5 mm

∗ When the adjustment value is increased by 1, the side void is changed as follows:

Side void adjustment: The side void is increased by 0.5mm. (The side void of “Set value x 0.5mm” is made.)

[Operation]

1) Initial display 2) [→/10KEY]

26-43 SIDE VOID 4( 0-10)

26-43 SIDE VOID 5( 0-10)

2) [

←/10KEY]

3) [ENTER/START]

26-43 SIDE VOID 5( 0-10)

26-43 SIDE VOID 3( 0-10)

[Function]

Used to set half-ON /OFF of the copy lamp in the pre-heat mode. When this test command is executed, the current set code number is displayed. Enter the desired

code number and press [ENTER/START] key to save the setting.

Code number Setting Display item Remark

0 Copy lamp OFF OFF 1 Copy lamp half-ON ON Default

64 Heater control setting in

scanner mode (S-MODE HEATER)

30 01 Paper sensor status display

(P-SENSOR)

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the code number of the current heater control setting is displayed. Enter the code number corresponding to the desired heater control setting and press [ENTER/START] key to save the setting.

Code number Heater control setting Display item Remark

0 Heater control OFF OFF Default (Only for Europe) 1 Heater control ON ON Default (Only for other than Europe)

[Operation]

The operation is similar to test command 21-01.

[Function]

The paper sensor status is displayed on the LCD.

Sensor Display item Remark Paper exit sensor POD No. 1 tray paper width sensor PD1 No. 2 tray paper width sensor PD2 Paper entry sensor PPD1 Duplex sensor PPD2 No. 2 tray paper feed sensor PPD3 New drum cartridge sensor DRST

∗ Since the manual paper feed sensor is a single bypass sensor, its status is not displayed.

[Operation]

1) Initial display 2) When sensor ON

30-01 P-SENSOR

30-01 POD PD1 PD2 PPD1 PPD2 PPD3 DRST

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41 06 OC cover float detection

level (OC FLOAT LEVEL)

[Function]

When this test command is executed, the current set value is displayed. When [ENTER/START] key is pressed, the mirror base unit moves to the SPF scan position to acquire the OC cover float detection level.

When the mirror base unit returns to the home position, the acquired value is displayed. If the detection level is not acquired, ERR display is made. (Default: 0) Note that, this test command must be executed with the OC cover closed.

∗ If the value is 0, float detection is not performed in normal jobs.

[Operation]

1) Initial display

41-06 OC FLOAT LEVEL 0

2) [ENTER/START]

41-06 OC FLOAT LEVEL EXECUTING...

<Canceling - when C/CA key is pressed-> After canceling, the machine goes into the sub code entry

standby mode.

THE JOB IS BEING CANCELED.

3) When the level is acquired:

41-06 OC FLOAT LEVEL **** OK

3) When the level is not acquired:

41-06 OC FLOAT LEVEL **** ERR

43 01 Fusing temperature setting

(Normal copy) (FU TEMP)

04 Fusing temperature setting

in multi coy (FU TEMP MULTI)

[Function]

When this test command is executed, the current set code number is displayed. Press [

←/→/10KEY]

key to change the setting and press [ENTER/START] key to save the setting into the EERPOM. The machine goes into the sub code entry standby mode.

Code Set temperature (°C) Remark

0 160 1 165 2 170 3 175 4 180 5 185 6 190 Default 7 195 8 200

[Operation]

The operation is similar to test command 21-01.

[Function]

For 20th sheet or later in multi copy, the fusing temperature is automatically changed from the temperature set with test command 43-1 to the temperature set with this test command.

When this test command is executed, the current set code number is displayed. Enter the code number and press [ENTER/START] key to change the setting.

Code Set temperature (°C) Remark

0 155 1 160 2 165 3 170 Default 4 175 5 180

[Operation]

The operation is similar to test command 21-01.

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43 05 Fusing temperature setting

in duplex copy (FU TEMP DPLX)

09 Postcard size paper fusing

control setting (FU CTR PCARD) (Japan model only)

[Function]

In the case of duplex copy, the shift temperature set with this test command is applied to the fusing temperature. When this test command is executed, the current set code number is displayed. Enter the desired code number and press [ENTER/START] key to save the setting.

Code Shift temperature (°C) Remark

0 ±0 Default 1-8 2-6 3-4 4-2 5±0 6+2 7+4 8+6 9+8

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the current set code number is displayed. Enter the desired code number and press [ENTER/START] key to save the setting.

Code Shift temperature (°C) Display item Remark

0 Cancel OFF Default 1 Setting ON

11 Postcard size paper fusing

temperature setting (FU TEMP P-CARD) (Japan model only)

∗ Setting" is default for Japan. However, there is no schedule for production of the Japan model.

[Operation]

The operation is similar to test command 21-01.

[Function]

When this test command is executed, the current set code number is displayed.

←/→/10KEY] key is pressed, setting is changed. When [ENTER/START] key is pressed, set-

When [ ting is written into the EEPROM. The machine goes into the sub code entry standby mode.

Code Shift temperature (°C) Remark

0 160 1 165 2 170 3 175 4 180 5 185 6 190 7 195 Default 8 200

∗ Applied only to the Japan model. However, there is no schedule to produce the Japan model. Set-

ting is reflected only when ON with test command 43-09.

[Operation]

The operation is similar to test command 21-01.

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43 14 Fusing start temperature

setting (FU TEMP START)

46 01 Copy density adjustment

(300dpi) (EXP.LEVEL 300)

[Function]

When this test command is started, the currently set code number is displayed.

←/→/10KEY] to switch the setting, and press [ENTER/START] key to save it to the EEPROM.

Press [ The machine goes to the sub code entry standby mode.

Code Set temperature (°C) Remark

0 160 1 165 2 170 3 175 4 180 5 185 6 190 7 195 Default 8 200

[Operation]

The operation is similar to test command 21-01.

[Function]

copy becomes lighter. In this case, only Exp.3 copy is made. When, however, the setting is made to make darker copy,

Exp.1 and Exp.5 copies also become darker. When made to lighter copy, Exp1. and Exp.5 copies become lighter, too.

←/→] key to switch the mode. The set value of the selected mode is displayed on the LCD.

Press [ (Adjustment value: 1 – 99)

The setting procedure of the magnification ratio is the same as that to copy operation.

Mode Display item Default LED AE mode (300dpi) AE 50 COPY mode lamp TEXT mode (300dpi) TEXT 50 PRINT mode lamp PHOTO mode PHOTO 50 SCAN mode lamp TS mode (TEXT)(300dpi) TSTXT 50 PRINT mode lamp

SCAN mode lamp

TS mode (AE)(300dpi) TSAE 50 COPY mode lamp

SCAN mode lamp

[Operation]

1) Initial display

46-01 EXP.LEVEL 300 AE 100% 50( 0-99)

2) [

←] Mode selection

46-01 EXP.LEVEL 300 TSAE 100% 50( 0-99)

→] Mode selection

2) [

46-01 EXP.LEVEL 300 TEXT 100% 50( 0-99)

3) [10KEY] Value entry

46-01 EXP.LEVEL 300 AE 100% 62( 0-99)

4) [START] Fixing and printing value (No change on the LCD)

∗ Print is started in the set mode.

46-01 EXP.LEVEL 300 AE 100% 62( 0-99)

4) To fix the set value without printing, press [Enter] key.

46-01 EXP.LEVEL 300 AE 100% 62( 0-99)

∗ To cancel manual feed paper empty MSG,

press any key.

∗ When performing the AE mode exposure

adjustment, place the test chart on the document table so that the center area of 10cm is not covered.

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46 02 Copy density adjustment

(600dpi) (EXP.LEVEL 600)

18 Image contrast adjustment

(300dpi) (GAMMA 300)

[Function]

Copy density is set for each mode. When this test command is executed, the current se value is displayed in 2 digits (Default: 50). Change the set value and press [START] key to make a copy under the set value. When the set value is increased, the copy becomes darker. When the set value is decreased, the copy becomes lighter. In this case, only Exp.3 copy is made. When, however, the setting is made to make darker copy, Exp.1 and Exp.5 copies also become darker. When made to lighter copy, Exp1. and Exp.5 copies become lighter, too.

] key to switch the mode. The set value of the selected mode is displayed on the LCD.

[←/→

Press (Adjustment value: 1 – 99)

Mode Display item Default LED AE mode (600dpi) AE 50 COPY mode lamp TEXT mode (600dpi) TEXT 50 PRINT mode lamp PHOTO mode PHOTO 50 SCAN mode lamp TS mode (TEXT) (600dpi) TSTXT 50 PRINT mode lampSCAN mode lamp TS mode (AE) (600dpi) TSAE 50 COPY mode lampSCAN mode lamp

[Operation]

The operation is similar to test command 46-01.

[Function]

Contrast is set for each mode. When this test command is executed, the current se value is displayed in 2 digits (Default: 50). Change the set value and press [START] key to make a copy under the set value. When the set value is increased, the contrast becomes higher. When the set value is decreased, the contrast becomes lower. In this case, only Exp.3 copy is made. When, however, the setting is made to make higher contrast, Exp.1 and Exp.5 copies also become in higher contrast. When made to a lower contrast, Exp1. and Exp.5 copies become lower contrast, too. Press [

←/→] key to switch the mode. The set value of the selected mode is displayed on the LCD.

(Adjustment value: 1 – 99)

Mode Display item Default LED AE mode (300dpi) AE 50 COPY mode lamp TEXT mode (300dpi) TEXT 50 PRINT mode lamp PHOTO mode PHOTO 50 SCAN mode lamp TS mode (TEXT) (300dpi) TSTXT 50 PRINT mode lamp

SCAN mode lamp

TS mode (AE) (300dpi) TSAE 50 COPY mode lamp

SCAN mode lamp

∗ No density display on LCD.

[Operation]

The operation is similar to test command 46-01.

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46 19 Exposure mode setting (AE

MODE)

[Function]

γ table setting>

< When this test command is executed, the code number of the current set gamma table is displayed.

(Default: Japan -1/Ex Japan -2) Enter the code number corresponding to the desired gamma table, and press [

←/→] key to change

the mode and write into the EEPROM.

<AE operation mode> When setting the

γ table, press [→] key to change to the AE operation mode, and the current set code

number of the AE operation mode is displayed. (Default: 0) Enter the code number corresponding to the desired AE operation mode and press [

←/→] key to

change the mode and write into the EEPROM.

<PHOTO image process setting> When [

→] key is pressed in AE operation mode setting, the mode is changed to the PHOTO image

process setting and the code number of the current set PHOTO image process setting is displayed. (Default: 0) Enter the code number corresponding to the desired PHOTO image process setting and press [

←/→]

key to change the mode and write into the EEPROM.

Mode Display item Code number Setting content Remark

γ GAMMA

AE AE

PHOTO PHOTO

1 Image quality priority mode Japan default 2 Toner consumption priority mode EX Japan default 0 Lead edge stop Default 1 Real time process 1 Error diffusion process Default 2 Dither process

20 SPF exposure correction

(EXP.LEVEL SPF)

[Operation]

1) Initial display

γ table setting>

46-19 AE MODE GAMMA 2( 1-2)

2) [

→] Mode selection

46-19 AE MODE AE 0( 0-1)

2) [

←] Mode selection

46-19 AE MODE PHOTO 1( 1-2)

3) [10KEY] Value input

46-19 AE MODE AE 1( 0-1)

4) [ENTER/START] Save the set value. The machine goes to the sub code entry standby mode.

[Function]

Used to adjust the exposure correction amount in the SPF mode. The adjustment is made by adjusting Vref voltage variation for the OC mode.

When this test command is executed, the current set value is displayed in 2 digits (Default: 50). Change the set value and press [START] key to save the setting and make a copy.

When the set value is increased, copy becomes darker. When the set value is decreased, copy becomes lighter. (Adjustment range: 1 – 99)

Mode Display item Default Remark

SPF SPF 50

[Operation]

The operation is similar to test command 46-01.

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46 29 Image contrast adjustment

(600dpi) (GAMMA 600)

30 AE limit adjustment (AE

LIMIT)

[Function]

contrast becomes lower. In this case, only Exp.3 copy is made. When, however, the setting is made to make higher contrast,

Exp.1 and Exp.5 copies also become in higher contrast. When made to a lower contrast, Exp1. and Exp.5 copies become lower contrast, too.

←/→] key to switch the mode. The set value of the selected mode is displayed on the LCD.

Press [ (Adjustment value: 1 – 99)

Mode Display item Default LED AE mode (600dpi) AE 50 COPY mode lamp TEXT mode (600dpi) TEXT 50 PRINT mode lamp PHOTO mode PHOTO 50 SCAN mode lamp TS mode (TEXT)(600dpi) TSTXT 50 PRINT mode lamp

SCAN mode lamp

TS mode (AE)(600dpi) TSAE 50 COPY mode lamp

SCAN mode lamp

∗ No density display on LCD.

[Operation]

The operation is similar to test command 46-01.

[Function]

Used to set the limit value in AE and AE (toner save). Change the setting and press [ENTER/START] key to write the setting into the EEPROM. The machine goes into the sub code entry standby mode. By pressing [

←/→] key, setting is changed. (Setting range: 0 – 31, Default: 0)

Mode Display item Remark Limit value for AE AE Limit value for AE (toner save) TSAE

31 Image sharpness

adjustment (SHARPNESS)

<Remark> When test command 26-06 (Destination setting) or test command 46-19 Auto Exposure mode is

changed, the setting of this test command is also changed to the default in connection.

[Operation]

The operation is similar to test command 46-19.

[Function]

Used to adjust sharpening/blurring of image in each mode.

Image quality S etting No Remark

Blurring 0

Standard 1 Default

Sharpening 2

When this test command is executed, warm-up and shading are performed and the current set value is displayed. (Default: 1) Change the set value and press [START] key to make a copy under the set conditions. To change the mode, press [

←/→] key. The code number of the selected mode is dip0slayed on the

LCD.

Mode Display item Default setting LED AE mode AE 1 COPY mode lamp TEXT mode TEXT 1 PRINT mode lamp PHOTO mode PHOTO 1 SCAN mode lamp TS mode (TEXT) TSTXT 1 PRINT mode lamp

SCAN mode lamp

TS mode (AE) TSAE 1 COPY mode lamp

SCAN mode lamp

[Operation]

The operation is similar to test command 46-01.

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46 32 Copier color reproduction

setting (COLOR REAPPEAR)

48 01 Main scan/sub scan

direction magnification ratio (COPY MAG.)

[Function]

Used to set color reproduction in each mode. Colors easy to be copied and colors difficult to be copied can be switched.

Set value Colors easy to be copied Colors difficult to be copied

0 Purple, Blue, Red Yellow, Green, Water blue 1 Water blue, Green, Blue Purple, Red, Yellow 2 Yellow, Red, Green Blue, Water blue, Purple

This setting has virtually no effect on black-and-white documents.

∗

When this test command is executed, warm-up and shading are performed and the current set value is displayed. (Default: 0) Press [START] key to make a copy under the set conditions . At that time, color components are changed for used in copying.

] key. The code number of the selected mode is dip0slayed on the

To change the mode, press [

←/→

LCD.

Specification component Setting No Remark

Green 0 Default

Red 1

Blue 2

Mode Display item Default setting LED AE mode (including TS) AE 0 COPY mode lamp TEXT mode (including TS) TEXT 0 PRINT mode lamp PHOTO mode PHOTO 0 SCAN mode lamp

[Operation]

The operation is similar to test command 46-01.

[Function]

Used to adjust the magnification ratio in the main scan (front/rear) direction and sub scan direction. Enter the adjustment value with [10KEY]. Press [START] key to save the set value and make a copy. (When the adjustment value is increased by 1, the magnification ratio is increased by 0.1%.) The adjustment mode can be changed by pressing [

←/→] key. (Adjustment range: 1 – 99, Default: 50)

Mode Display item Default value LED Main scan direction magnification ratio F-R 50 PRINT mode lamp OC mode sub scan direction

SCAN 50 SCAN mode lamp

magnification ratio

05 SPF/RSPF mode sub scan

direction magnification ratio in copying (SPF/RSPF MAG.)

[Operation]

The operation is similar to test command 46-01.

[Function]

Used to display the current SPF/RSPF mode sub scan direction magnification ratio on the LCD. When [START] key is pressed, the entered data is acquired and saved into the EEPROM, and a copy is made. (When the set value is increased by 1, the magnification ratio is increased by 0.1%.) (Adjustment range: 1 – 99, Default: 50)

When adjusting the RSPF, use [2-SIDED COPY] key to select single/duplex after entering the one page print mode, performing 2-page single copy.

For printing, regardless of the density mode and the density level,

Density mode = MANUAL Density level = 3

Mode Display item Default LED

Sub scan magnification ratio adjustment on the

SIDE1 50 COPY mode lamp

surface of SPF/RSPF document Sub scan magnification ratio adjustment on the

SIDE2 50 PRINT mode lamp

surface of RSPF document

∗ When there is no document in SPF, copy is inhibited.

[Operation]

The operation is similar to test command 46-01.

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49 01 Download mode

(DOWNLOAD MODE)

[Function]

When this test command is executed, "DLOWNLOAD MODE" is displayed on the LCD and the machine goes into the program writing mode from PC to Flash ROM.

Use the writing tool on the PC and write the program. During writing, the display shows as follows: After completion of download, turn OFF/ON the power to reset.

Status Display item Download data receiving RECEIVING Loader function transfer LOADER COPYING Date delete start FLASH ERASE Data write (Boot section) BOOT WRITING Data write (Program section) PROGRAM WRITING Data write (EEPROM) E2PROM WRITING Data write (LCD) LCD DATE WRITING During SUM CHECK FLASH ROM SUM CHECK During BOOT SUM CHECK BOOT SUM CHECK During EEPROM SUM CHECK EEPROM SUM CHECK Download complete DOWNLOAD COMPLETE!

In case of an error in download, the following message is displayed on the LCD.

Error status Display item PC data receiving E-01 PC TRANS Loader function transfer E-02 LOADER COPY FLASH ROM delete E-03 FLASH ERASE Boot section FLASH ROM write E-04 BOOT WRITE Program section FLASH ROM write E-05 PROGRAM WRITE Loader section SUM CHECK E-06 LOADER SUM Boot section SUM CHECK E-07 BOOT SUM Program section SUM CHECK E-08 PROGRAM SUM E2PROM SUM CHECK E-09 E2PROM SUM E2PROM write E-10 E2PROM WRITE E2PROM read Verify E-11 E2PROM READ E2PROM collating Verify E-12 E2PROM COLLATE Boot section lens check E-13 BOOT LENGTH Program section lens check E-14 PROGRAM LENGTH E2PROM lens check E-15 E2PROM LENGTH Total data size check E-16 DATE SIZE IMC communication error E-17 IMC TRANS IMC FRASH ROM write E-18 IMC FLASH WRITE LCD section lens check E-19 LCD DATE LENGTH LCD section FLASH ROM write E-20 LCD DATE WRITE LCD section SUM CHECK E-21 LCD DATE SUM

To enter the download mode, there is a method to use key operations as well as to use a test command. With the power OFF, press and hold [CA] + [

←], turn on the power.

[Operation]

1) Initial display

DOWNLOAD MODE

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50 01 Lead edge image position

(LEAD EDGE)

[Function]

Used to adjust the copy image position and the lead edge void amount on copy paper. The adjustment is made by adjusting the image scan start position at 100% and the print start position (resist roller ON timing). When this test command is executed, the current set value is displayed in 2 digits. (Center value: 50)

←/→] key is pressed, the setting mode and the display are changed.

When [ Enter the adjustment value and press [START] key to save the set value and make a copy. When the adjustment is made by the main cassette paper feed, the adjustment values of all the paper

feed ports become the same. (When the set value is increased by 1, shift is made by 0.1mm.)

Mode Display item Default LED

Print start position (Main cassette paper feed)

(*) Print start position (2nd cassette paper feed)

Print start position (Manual paper feed)

TRAY1 50 COPY mode lamp

Main cassette lamp

TRAY2 50 COPY mode lamp

2nd cassette lamp

MFT 50 COPY mode lamp

Manual feed lamp Image lead edge void amount DEN-A 50 PRINT mode lamp Image scan start position RRC-A 50 SCAN mode lamp Image rear edge void amount DEN-B 50 COPY mode lamp

PRINT mode lamp

SCAN mode lamp

(*): Support for the installation models. For non-installation models, skip.

[Adjustment procedure]

1) Set the print start position (A: COPY mode lamp ON), the lead edge void amount (B: PRINT mode lamp ON), the scan start position (C: SCAN mode lamp) to zero, and make a copy of the scale at 100%.

2) Measure the image loss (Rmm) of the scale. Set C = 10 x R (mm). (Example: Set to 40.) When the value of C is increased by 10, the image loss is decreased by 1mm. (Default: 50)

3) Measure the distance (Hmm) from the paper lead edge to the image print start position. Set A = 10 x H (mm). (Example: Set to 50.) When the value of A is increased by 10, the image lead edge is moved to the paper lead edge by

1mm. (Default: 50).

4) Set the lead edge void amount to B = 50 (2.5mm). (Default: 50) When the value of B is increased by 10, the void is extended by about 0.1mm. (For 25 or less,

however, the void amount is regarded as 0.)

∗ The SFP adjustment is made by adjusting the SPF image scan start position after OC adjustment. ∗ When paper is discharged, the shifter is operated.

(Example)

Distance from the paper lead edge to the image lead edge, H = 5mm

5mm

10mm

[Operation]

The operation is similar to test command 46-01.

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Image loss, R = 4mm

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50 06 Copy lead edge position

adjustment (SPF/RSPF) (SPF/RSPF EDGE)

10 Print center offset

adjustment (PRT.OFFCENTER)

[Function]

Used to adjust the SPF copy lead edge. When the adjustment value of the document scan position adjustment is increased by 1, the scan

start timing is advanced by 0.1mm. The print result is shifted to the opposite direction of the scan start position. The adjustment mode can be changed by pressing [

←/→] key. (Adjustment range: 1 – 99, Default:50)

When scanning a back surface of document, the mode must be changed to operate the RSPF by pressing [2-SIDED COPY] key.

Mode Display item Default LED

Front surface document scan position

SIDE1 50 COPY mode lamp

adjustment Back surface document scan position

SIDE2 50 PRINT mode lamp

adjustment Rear edge void adjustment (SPF) END 50 SCAN mode lamp

When there is no document in the SPF, copy is inhibited.

∗ ∗ When paper is discharged, the shifter is operated.

[Operation]

The operation is similar to test command 46-01.

[Function]

Used to adjust the center offset position of copy images on copy paper and that in scanning document. When this test command is executed, the current set value is displayed. Enter the adjustment value and press [START] key to save the setting and make a copy. (When the set value is changed by 1, the center is shifted by 0.1mm.) When the adjustment value is increased, the center is shifted to right. When decreased, the center is shifted to left. The modes can be selected by pressing [

←/→] key.

When the set value is changed largely, the area outside the shading area may be scanned to cause black streaks on the edges. When the RSPF is used, select the mode for use of the RSPF by [2SIDED COPY] key.

Mode Display item Default LED

Print center offset (Main cassette paper feed)

(*) Print center offset (2nd cassette paper feed)

TRAY1 50 COPY mode lamp

Main cassette lamp

TRAY2 50 COPY mode lamp

2nd cassette lamp

Print center offset (Manual paper feed) MFT 50 COPY mode lamp

Manual feed lamp

2nd print center offset (Main cassette paper feed)

SIDE2 50 PRINT mode lamp

Main cassette lamp

12 Document feed off-center

adjustment (ORG.OFFCENTER)

(*) : Support for the installation models. For non-installation models, skip.

∗ In the 2nd print center offset adjustment, print is made forcibly as 1to2/Short Edge from OC regard-

less of duplex setting.

∗ When paper is discharged, the shifter is operated.

[Operation]

The operation is similar to test command 46-01.

[Function]

Used to adjust document scan off-center adjustment. The adjustment modes can be selected by pressing [

←/→] key. (Adjustment range: 1 – 99, Default:50)

When the adjustment value is increased, the print result is shifted to left.

Mode Display item Default LED Platen document scan OC 50 COPY mode lamp SPF document front scan SPF 50 PRINT mode lamp RSPF document back scan RSPF 50 SCAN mode lamp

∗ When paper is discharged, the shifter is operated.

[Operation]

The operation is similar to test command 46-01.

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 23

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Main code

Sub

code

Contents Details of function/operation

50 18 Memory reverse position

adjustment in duplex copy (DPLX REVERSE)

[Function]

When this test command is executed, the current set correction value is displayed. Enter the correction value and press [START] key to save the entered correction value. (Correction

value range; 1 – 99, Default: 50) For S-D mode front surface print and print of even paged in D-S mode, reverse memory copy opera-

tion is performed from the rear edge of documents. When, therefore, the print position adjustment of output images is required, adjust as follows: In the reverse memory coping, when the document scan is made in the arrow direction, the output

image is printed from the rear edge of scan image, When, therefore, the print lead edge is shifted, set the reference chart so that the reference position is

on the rear edge, and use this test command to adjust the set value so that the print lead edge is matched.

Since printing is made from the image data most lately stored in memory to the lead edge data from the print start position, the image lead edge adjustment is made by changing the end data position stored in memory by the set value of this test command.

Since it is performed by changing the scan end position, the image position adjustment is made by changing the scan end position and the end data stored in memory.

Mode Display item Default LED OC memory reverse output position OC 50 COPY mode lamp SPF memory reverse output position SPF 50 PRINT mode lamp

19 Duplex copy rear edge void

adjustment (DPLX END EDGE)

Document transport direction

Scan direction Scan rear edge

∗ The initial value of duplex setting is: 1to2/Long Edge ∗ When paper is discharged, the shifter is operated.

Scan lead edge Print lead edge

Scan end position (Default: Scan cut by void (1))

Document transport direction

Lead edge void (1) Print start position

Rear edge void Print rear edge

[Operation]

The operation is similar to test command 46-01.

[Function]

Used to adjust the rear edge void amount in duplex copy. When this test command is executed, the current set value is displayed in 2 digits. (Center value: 50.

However, Set value 50 = Set value 0) When the correction value is set to 0, write 50. The adjustment modes can be selected by pressing [

←/→] key. (Adjustment range; 1 – 99)

Enter the adjustment value and press [START] key to save the set value and make a copy. (The paper information is cleared for every copy.)

When the set value is increased by 1, the void amount is increased by about 0.1mm.

Mode Display item Default LED Paper rear edge void amount DEN-B 50 PRINT mode lamp Print start position (Duplex back surface) RRC-D 50 SCAN mode lamp

∗ The initial value of duplex setting is 2to2. ∗ When paper is discharged, the shifter is operated.

[Operation]

The operation is similar to test command 46-01.

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 24

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Main code

Sub

code

Contents Details of function/operation

51 02 Resist amount adjustment

(RESIST ADJ.)

53 08 SPF scan position automatic

adjustment (SPF AUTO)

[Function]

Used to adjust the contact pressure of the main unit resist roller and the RSPF resist roller onto paper. When this test command is executed, the current set value is displayed.

The adjustment modes can be selected by pressing [

←/→] key.

Enter the adjustment value with [10KEY] and press [START] key to save the set value and make a copy.

Mode Display item Default LED

Main cassette paper fed TRAY1 50 COPY mode lamp

Main cassette lamp

(*) 2nd cassette paper feed TRAY2 50 COPY mode lamp

2nd cassette lamp

Manual paper feed MFT 50 COPY mode lamp

Manual feed lamp

RSPF document paper feed (Front surface)

SIDE1 50 COPY mode lamp

PRINT mode lamp

SCAN mode lamp RSPF document paper feed (Back surface)

SIDE2 50 COPY mode lamp

PRINT mode lamp Duplex back surface DUP-2 50 PRINT mode lamp

SCAN mode lamp

(*): Support for the installation models. For non-installation models, skip.

[Operation]

The operation is similar to test command 46-01.

[Function]

Place a black chart so that it covers the SPF scan glass and the OC glass together, and close the OC cover.

When this test command is executed, the current adjustment value is displayed as the initial display.

∗ Default is 1. Adjustment range is 1 – 99. Adjustment unit 1 = about 0.127mm ∗ If the values are kept as the default values, SPF scan is not performed properly. The front area of

the proper scan position may be scanned.

During the error LED is lighted, when [START] key is pressed again, execution is performed again.

Mode Display item Default LED SPF scan position auto adjustment AUTO 1 COPY mode lamp SPF scan position manual adjustment MANU 1 PRINT mode lamp

61 03 HSYNC output check (LSU

CHK)

[Operation]

The operation is similar to test command 46-01. (In MANUAL) OK/ERR display in AUTO <When OK> <When ERR>

53-08 SPF AUTO AUTO 100% ** OK

53-08 SPF AUTO AUTO 100% ** ERR

[Function]

When [ENTER/START] key is pressed, HSYNC is performed and the polygon motor is rotated for 30sec. At that time, the COPY mode lamp is lighted for 100msec every time when HSYNC is detected.

[Operation]

1) Initial display

61-03 LSU CHK EXECUTING...

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 25

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Main code

Sub

code

Contents Details of function/operation

63 01 Shading check (SHADING

CHK)

[Function]

Used to display the detection level of white plate for shading. When [ENTER/START] key is pressed, the mirror base unit moves to the white plate for shading and

the copy lamp is lighted. When the light quantity is stabilized, revision is made for every second, and the level of one pixel at

the center of CCD which is not corrected is detected and the value is displayed in decimal values on the LCD. (3 digits)

[Operation]

1) Initial display

63-01 SHADING CHK EXECUTING... 000

02 Black level automatic

correction (BLACK LEVEL)

[Function]

Used to acquire the black level target value used for the black level adjustment of white balance. When this test command is executed, the current correction value is displayed in 3 digits of 12bit

hexadecimal number. Place the gray gradation chart (UKOG-0162FCZZ) used as the correction document so that the den-

sity 10 (black side) comes on the left side and that the chart is upside down at the center of the plate left center.

Chart back surface

When [ENTER/START] key is pressed, the mirror base unit scans the chart and calculates the correction value.

After completion of correction, the corrected value is displayed on the LCD.

∗ Default: 0 ∗ If the value is set to the default, operation is made with 0x60.

[Operation]

1) Initial display

63-02 BLACK LEVEL 0

2) [ENTER/START] Correction start

63-02 BLACK LEVEL EXECUTING...

<During canceling - When C/CA is pressed-> After canceling, the machine goes into the sub code entry

standby mode.

THE JOB IS BEING CANCELED.

3) After execution

63-02 BLACK LEVEL *** OK

3) In case of an error

63-02 BLACK LEVEL *** ERR

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 26

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Main

Sub

code

64 01 Self print (1by2 mode)

(SELF PRT.)

Contents Details of function/operation

[Function]

The status of the optical section is ignored and printing of one page is made. Also when the print command is received from the host, printing is made.

When this test command is executed, warm-up is performed and the ready lamp is lighted. (Since, however, the scanner is disabled, initializing is not made.)

Enter the code number and press [ENTER/START] key to start paper feed from the selected cassette and print in the selected pattern.

Code number Pattern Display item

0 1by2 1 BY 2 1 Grid pattern CHECK 2 White paper WHITE 3 Black background BLACK

∗ For 4 – 99, flip.

[Operation]

The operation is similar to test command 21-01.

5. Trouble codes

A. Trouble codes list B. Details of trouble codes

Main

Sub

code

E1 00 IMC communication trouble

10 IMC trouble 13 IMC flash ROM error 16 IMC DIMM memory read/write check error 81 IMC communication interface error (parity) 82 IMC communication interface error (Overrun) 84 IMC communication interface error (Framing)

E7 02 LSU trouble

10 Shading trouble (Black correction) 11 Shading trouble (White correction) 16 Abnormal laser output

F5 02 Copy lamp lighting abnormality H2 00 Thermistor open H3 00 Heat roller high temperature detection H4 00 Heat roller low temperature detection

L1 00 Feeding is not completed within the specified time after

L3 00 Scanner return trouble

L4 01 Main motor lock detection

L6 10 Polygon motor lock detection U2 04 EEPROM read/write error (Serial communication error)

U9 99 Operation panel language error

starting feeding. (The scan head locking switch is locked)

11 Counter check sum error (EEPROM)

Details of trouble

Main

Sub

code

E1 00 Content IMC communication trouble

Detail An abnormality occurs in communication

between the CPU and the IMC.

Cause IMC – CPU signal line abnormality

IMC Memory defect/data abnormality Check and remedy

10 Content IMC trouble

Detail An abnormality occurs in the IMC. Cause USB chip error/CODEC error on the IMC. Check

and remedy

13 Content IMC flash ROM error

Detail An abnormality occurs in the IMC flash ROM. Cause IMC abnormality Check and remedy

16 Content IMC DIMM memory read/write check error

Detail An installation error occurs in the IMC memory

Cause Improper installation of the IMC memory

Check and remedy

81 Content IMC communication interface error (parity)

Detail A parity error occurs in communication between

Cause IMC memory defect/data abnormality Check

and remedy

Replace the MCU PWB with new one.

Replace the MCU PWB with a new one.

If downloading of the program is abnormally

terminated, it may cause an error. Download

the program again to avoid this.

module.

An error occurs during access to the IMC

memory.

module.

IMC memory module abnormality

IMC memory contact abnormality

IMC abnormality.

Check installation of the memory module.

Replace the memory module.

Replace the MCU PWB with a new one.

the CPU and the IMC.

Check the memory of the IMC.

Replace the MCU PWB with new one.

Details of trouble

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 27

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Main

Sub

code

E1 82 Content IMC communication interface error (Overrun)

Detail An overrun error occurs in communication

between the CPU and the IMC. Cause IMC memory defect/data abnormality. Check and remedy

84 Content IMC communication interface error (Framing)

Detail A framing error occurs in communication

Cause IMC memory defect/data abnormality. Check

and remedy

E7 02 Content LSU trouble

Detail The BD signal from the LSU cannot be detected

Cause LSU connector or LSU harness defect or

Check and remedy

10 Content Shading trouble (Black correction)

Detail The CCD black scan level is abnormal when the

Cause Improper connection of the CCD unit flat cable

Check and remedy

11 Content Shading trouble (White correction)

Detail The CCD white scan level is abnormal when the

Cause Improper connection of the CCD unit flat cable

Check and remedy

16 Content Abnormal laser output

Detail When the laser output is stopped, HSYNC is

Cause Laser abnormality

Check and remedy

Check the memory of the IMC.

Replace the MCU PWB with new one.

between the CPU and the IMC.

Check the memory of the IMC.

in a certain cycle. (Always OFF or always ON)

disconnection

Polygon motor rotation abnormality

Laser beams are not generated.

MCU PWB abnormality.

Check connection of the LSU connector.

Execute TC 61-03 to check the LSU operations.

Check that the polygon motor rotates normally.

Check that the laser emitting diode generates

laser beams.

Replace the LSU unit.

Replace the MCU PWB.

shading.

CCD unit abnormality

MCU PWB abnormality

Check connection of the CCD unit flat cable.

Check the CCD unit.

shading.

Dirt on the mirror, the lens, and the reference

white plate

Copy lamp lighting abnormality

CCD unit abnormality

MCU PWB abnormality

(When occurred in the SPF scan position.)

Improper installation of the mirror unit

Clean the mirror, lens, and the reference white

plate.

Check the light quantity and lighting status of

the copy lamp (TC 05-03).

Check the MCU PWB.

detected.

MCU PWB abnormality.

Check the laser emitting diode operation.

Replace the MCU PWB.

Details of trouble

Main

Sub

code

F5 02 Content Copy lamp lighting abnormality

Detail The copy lamp does not turn on. Cause Copy lamp abnormality

Check and remedy

H2 00 Content Thermistor open

Detail The thermistor is open.

Cause Thermistor abnormality

Check and remedy

H3 00 Content Heat roller high temperature detection

Detail The fusing temperature exceeds 240°C. Cause Thermistor abnormality

Check and remedy

H4 00 Content Heat roller low temperature detection

Detail The fusing temperature does not reach 185°C

Cause Thermistor abnormality

Check and remedy

Copy lamp harness abnormality CCD PWB harness abnormality. Use TC 5-3 to check the copy lamp operations.

When the copy lamp lights up.

Check the harness and the connector between the CCD unit and the MCU PWB.

When the copy lamp does not light up.

Check the harness and the connector between the copy lamp unit and the MCU PWB. Replace the copy lamp unit. Replace the MCU PWB.

The fusing unit is not installed.

Control PWB abnormality Fusing section connector disconnection The fusing unit is not installed. Check the harness and the connector between the thermistor and the PWB. Use TC 14 to clear the self diagnostic display.

Control PWB abnormality Fusing section connector disconnection. Use TC 5-02 to check the heater lamp blinking operation.

When the lamp blinks normally.

Check the thermistor and its harness. Check the thermistor input circuit on the control PWB.

When the lamp keeps ON.

Check the power PWB and the lamp control circuit on the MCU PWB. Use TC 14 to clear the self diagnostic display.

within 27 sec of turning on the power, or the fusing temperature keeps at 140°C.

Heater lamp abnormality Thermostat abnormality Control PWB abnormality Use TC 5-02 to check the heater lamp blinking operation.

When the lamp blinks normally.

Check the thermistor and its harness. Check the thermistor input circuit on the control PWB.

When the lamp does not light up.

Check for disconnection of the heater lamp and the thermostat. Check the interlock switch. Check the power PWB and the lamp control circuit on the MCU PWB. Use TC 14 to clear the self diagnostic display.

Details of trouble

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 28

Page 99

Main

Sub

code

L1 00 Content Feeding is not completed within the specified

Detail The white area and the black marking on the

Cause The scan head is locked by the lock switch.

Check and remedy

L3 00 Content Scanner return trouble

Detail When the mirror base is returned for the

Cause Mirror unit abnormality

Check and remedy

L4 01 Content Main motor lock detection

Detail When the main motor encoder pulse is not

Cause Main motor unit abnormality

Check and remedy

time after starting feeding. (The scan head

locking switch is locked)

shading plate are used to obtain the difference

in the CCD level values for judgment of lock.

When the difference in the levels of which and

black is small, it is judged that the black mark

could not be scanned by lock and the trouble

code “L1” is displayed.

Mirror unit abnormality

The scanner wire is disconnected.

The origin detection sensor abnormality

Mirror motor harness abnormality

Check to confirm that the scan head lock switch

is released.

Use TC 1-1 to check the mirror reciprocating

operations.

When the mirror does not feed.

Check for disconnection of the scanner wire.

Check the harness and the connector between

the mirror motor and the MCU PWB.

Replace the mirror unit.

Replace the MCU PWB.

When the mirror does feed.

Use TC 1-2 to check the mirror home position

sensor.

specified time (6 sec) in mirror initializing after

turning on the power, the mirror home position

sensor (MHPS) does not turn ON. Or when the

mirror base is returned for the specified time

(about 6 sec) after start of copy return, the

mirror home position sensor (MHPS) does not

turn ON.

Scanner wire disconnection

Origin detection sensor abnormality

Mirror motor harness abnormality

Use TC 1-1 to check the mirror reciprocating

operations.

When the mirror does not return.

Check for disconnection of the scanner wire.

Check the harness and the connector between

the mirror motor and the MCU PWB.

Replace the mirror unit.

Replace the MCU PWB.

When the mirror does feed.

Use TC 1-2 to check the mirror home position

sensor.

detected for 100 msec.

Improper connection or disconnection the main

motor and the harness.

MCU PWB abnormality

Use TC 25-01 to check the main motor

operations.

Check connection of the main motor harness/

connector.

Replace the main motor.

Replace the MCU PWB.

Details of trouble

Main

Sub

code

L6 10 Content Polygon motor lock detection

Detail The lock signal (specified rpm signal) does not

return within a certain time (about 20 sec) from starting the polygon motor rotation.

Cause Polygon motor unit abnormality

Check and remedy

U2 04 Content EEPROM read/write error (Serial

Detail EEPROM access process error Cause EEPROM abnormality Check and

remedy

11 Content Counter check sum error (EEPROM)

Detail Check sum error of the counter area in the

Cause EEPROM abnormality Check

and remedy

U9 99 Content Operation panel language error

Detail There is no language file.

Cause Language file abnormality

Check and remedy

Improper connection or disconnection of the polygon motor and the harness. MCU PWB abnormality Use TC 61-1 to check the polygon motor operations. Check connection of the polygon motor harness/connector. Replace the polygon motor. Replace the MCU PWB.

communication error)

Check that the EEPROM is properly set. Use TC 16 to cancel the trouble. Replace the MCU PWB.

EEPROM

Check that the EEPROM is properly set. Use TC 16 to cancel the trouble. Replace the MCU PWB.

The language file is destroyed.

MCU PWB abnormality MCU firmware download

Replace the MCU PWB.

Details of trouble

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 29

Page 100

[11] USER PROGRAM

The user settings consist of the following items.

1. User programs

A. Copy mode

Program

number

1 AUTO CLEAR 1: 10 SEC.

2 PREHEAT MODE 1: 30 SEC.

3 AUTO SHUT-OFF 1: ON

4 AUTO SHUT-OFF

5STREAM FEEDING1: ON

6 LAYOUT IN 2IN1 1: PATTERN 1

7 OFFSET

8 ROTATE ORIG.

9 AE/TEXT

10 2-SIDED COPY

11 MARGIN WIDTH 1: 1/4"

12 MEM. FOR

13 AUTO KEY REPEAT 1: ON

14 KEY PRESS TIME 1: NORMAL

15 KEY TOUCH

Program name

TIME

FUNCTION

IMAGE

RESOLUTION

MODE

PRINTER

SOUND

Setting codes

(factory default setting

appears in bold)

2: 30 SEC.

3: 60 SEC.

4: 90 SEC. 5: 120 SEC. 6: OFF

2: 1 MIN. 3: 5 MIN. 4: 30 MIN. 5: 60 MIN. 6: 120 MIN. 7: 240 MIN.

2: OFF

1: 5 MIN.

2: 30 MIN. 3: 60 MIN. 4: 120 MIN. 5: 240 MIN.

2: OFF

2: PATTERN 2

1: ON

2: OFF 1: ON

2: OFF

1: 300dpi

2: 600dpi

1: HI-SPEED

2: NORMAL

2: 1/2"

3: 3/4" 4: 1"

1: 30% 2: 40%

3: 50%

4: 60% 5: 70%

2: OFF

2: 0.5 SEC. 3: 1.0 SEC. 4: 1.5 SEC. 5: 2.0 SEC.

1: LOW

2: HIGH 3: OFF

Explanation

• Auto clear time automatically returns the copy settings to the initial settings if no keys are pressed for a preset period of time following the end of a copy job.

• This program is used to select the period of time. Auto clear time can also be disabled.

• This function automatically switches the machine to a low power consumption state if the set duration of time elapses without the machine being used when the power is on. The power save indicator lights up, however, the keys on the operation panel can be used. Normal operation automatically resumes when a key on the operation panel is pressed, an original is placed, a print job is received.

• Use this setting to enable or disable auto power shut-off mode.

• This function automatically switches the machine to a state that consumes even

less power than preheat mode if the set duration of time elapses without the machine being used when the power is on. All lights except the power save indicator go off. To resume normal operation, press the [START] key. Normal operation also resumes automatically when a print job is received or scanning is begun from a computer. While in auto power shut-off mode, no keys (except the [START] key) can be used.

• When copying using the RSPF, while "SET ORIGINALS FOR STREAM FEEDING." appears in the display after an original has been scanned (about 5 seconds), a subsequent original can be placed and automatically fed into the machine.

• Use this setting to select the layout pattern when two original pages are copied onto a single sheet of paper (see page 35 for the layout patterns).

• When enabled, this function offsets the position in the paper output tray of sets of copies during sort copy or copy job, and print jobs when using the printer function.

• When two-sided copying is performed, this function rotates the image on the back of the original. This is convenient when binding the copies at the top (tablet binding).

• The copy resolution in auto and text mode is normally 300 dpi. If high-quality copies are preferred, use this setting to change the resolution to 600 dpi.

• If the memory fills up when two-sided copying is performed, "NORMAL" can be selected to make copying possible. However, "NORMAL" results in a slower copying speed. Normally "HI-SPEED" is selected to enable fast two-sided copying.

• Use this setting to set the margin width.

• Use this to change the proportion of machine memory used for printer mode.

• Use this setting to select whether or not holding down a key causes repeated input

of the key. For keys that normally cause a set value to increase when held down (for example, holding down the [<] key [v] or [>] key [^]), this program can be used to have the set value not change when the key is held down.

• Use this setting to select how long a key must be pressed for the input to be accepted. By selecting a longer time, you can prevent settings from being changed by the accidental pressing of a key.

• This sets the volume of beep signals.

AL-1651CS USER PROGRAM 11 - 1

SHARP AL1655, AL1651, AL1661 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

[1] GENERAL

1. Major functions

2. Note for servicing and handling

[2] SPECIFICATIONS

1. Basic Specifications

2. Operation specifications

3. Copy performance

4. SPLC (JBIG GDI) printer

5. Scan function

6. RSPF

[3] CONSUMABLE PARTS

1. Supply system table

2. Environmental

3. Production control number(lot No.) identification

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance

2. Internal

3. Operation panel

4. Motors and solenoids

5. Sensors and switches

6. PWB unit

7. Cross sectional view

[5] UNPACKING AND INSTALLATION

1. Copier installation

2. Cautions on handling

3. Checking packed components and accessories

4. Unpacking

5. Removing protective packing materials

6. Installing the TD cartridge

7. Loading the paper tray

8. Power to copier

9. Software for AL-1651CS

A. Before installation

B. Installing the software

C. Setting up button manager

A. USB

B. RJ45

[6] COPY PROCESS

1. Functional diagram

2. Outline of print process

3. Actual print process

[7] OPERATIONAL DESCRIPTIONS

1. Outline of operation

2. Scanner section

A. Scanner unit

B. Optical system

C. Drive system

3. Laser unit

A. Basic structure

B. Laser beam path

C. Composition

4. Fuser section

A. General description

A. Paper transport path and general operations

6. Process unit new drum detection mechanism

7. RSPF section

A. Outline

B. Document transport path and basic composition

C. Operational descriptions

8. D-D (Duplex to Duplex) mode paper/ document transport (Duplex model)

A. Initial state

B. Front copy

D. Cases where a document jam is caused

C. Back copy

9. Shifter

[8] DISASSEMBLY AND ASSEMBLY

1. High voltage section

A. List

B. Disassembly procedure

C. Assembly procedure

D. Charger wire cleaning

2. Operation panel section

A. List

B. Disassembly procedure

E. Charger wire replacement

C. Assembly procedure