Sharp AL-1551CS, AL-1540CS, AL-1530CS, AL-1215 Service Manual

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Page 1

SERVICE MANUAL

CODE : 00ZAL1551CS1E

DIGITAL LASER COPIER/ DIGITAL MULTIFUNCTIONAL SYSTEM

AL-1215 AL-1530CS

(AL-1551CS)

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

AL-1540CS AL-1551CS

[10] SIMULATION, TROUBLE CODES . . . . . . . . . . . . . . . . . . . . . . . 10 - 1

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

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

[13] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 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 : 0.481m sec (20,787 rpm) Out put power : 0.17mW

± 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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CONTENTS

[1] GENERAL

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

[2] SPECIFICATIONS

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

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

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

4. GDI Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

5. Scan function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

6. SPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

7. RSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

[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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

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

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

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

[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 copy paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

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

9. Software for the AL-1200 (USB) series . . . . . . . . . . . . . . . . 5-3

10. Connecting the interface cable . . . . . . . . . . . . . . . . . . . . . .5-8

11. Parallel interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

12. USB interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

13. Moving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

[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

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

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

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

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

7. SPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7

8. D-D (Duplex to Duplex) mode paper/

document transport (Duplex model) . . . . . . . . . . . . . . . . . . .7-8

[8] DISASSEMBLY AND ASSEMBLY

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

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

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

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

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

6. Manual paper feed section . . . . . . . . . . . . . . . . . . . . . . . . .8-13

7. Rear frame section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-17

8. Power section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-18

9. SPF section (SPF model only) . . . . . . . . . . . . . . . . . . . . . .8-18

10. 2nd cassette section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-21

11. Duplex motor section (RSPF model only). . . . . . . . . . . . . .8-23

12. Reverse roller section (RSPF model only) . . . . . . . . . . . . .8-23

13. RSPF section (RSPF model only) . . . . . . . . . . . . . . . . . . .8-24

[9] ADJUSTMENTS

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

2. Copy density adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4

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

4. Duplex adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6

[10] SIMULATION, TROUBLE CODES

1. Entering the simulation mode. . . . . . . . . . . . . . . . . . . . . . .10-1

2. List of simulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2

3. Contents of simulations . . . . . . . . . . . . . . . . . . . . . . . . . . .10-3

4. Trouble codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15

[11] USER PROGRAM

1. Functions that can be set with user programs . . . . . . . . . .11-1

2. Change the setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1

3. Density level adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . .11-2

4. Toner save mode setup and cancel . . . . . . . . . . . . . . . . . .11-2

[12] ELECTRICAL SECTION

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

2. Circuit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-3

[13] CIRCUIT DIAGRAM

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

2. OPERATION PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-10

3. I/F PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-11

4. POWER SUPPLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-12

5. ACTUAL WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . .13-14

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[1] GENERAL

1. Major functions

Configurations

Item

CPM SB/MB 2 Tray SPF R-SPF

Model AL-1215 12CPM SB 8M AL-1530CS 15CPM SB 8M AL-1540CS 15CPM SB 8M AL-1551CS 15CPM MB 16M

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. PCL printer: PCL printer function with USB. SOPM: Scan Once Print Many function (Many copies are made by one scan.) Duplex: Auto duplex copy function Memory: Standard page memory FAX: FAX function.

Descriptions of table

: Standard provision : No function or no option available

Opt: Option

Color

Scanner

GDI

printer

PCL

printer

SOPM Duplex Memory FAX

AL-1215/AL-1530CS

AL-1551CS GENERAL 1 - 1

AL-1540CS

AL-1551CS

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[2] SPECIFICATIONS

1. Basic Specifications

Item Type Desktop Copy system Dry, electrostatic Segment (class) Digital personal copier Copier dimensions AL-1215 20.4"(W)X18.2"(D)X11.6"(H) (518mm(W)X462.5mm(D)X295.6mm(H))

AL-1530CS 20.4"(W)X18.2"(D)X11.6"(H) (518mm(W)X462.5mm(D)X295.6mm(H)) AL-1540CS 20.4"(W)X19.4"(D)X15.0"(H) (518mm(W)X492.5mm(D)X380.4mm(H)) AL-1551CS 20.4"(W)X19.4"(D)X18.3"(H) (518mm(W)X492.5mm(D)X465.4mm(H))

Weight (Approximately)

2. Operation specifications

Paper feed section

Paper exit section Exit way Face down

Originals Original set Center Registration (left edge)

Paper feed system

AB system Tray paper feed

Inch system Tray paper feed

AL-1215 35.3lbs.(17Kg) TD and drum cartridges included AL-1530CS 35.3lbs.(17Kg) AL-1540CS 41.9lbs.(20Kg) AL-1551CS 50.7lbs.(24Kg)

Section, item Details

AL-1215/1530CS/1540CS 1 tray (250 sheet) + single bypass AL-1551CS 2 tray (500 sheet) + multi bypass (50 sheet) Paper size A4, B5, A5 (Landscape)

section

Multi bypass paper feed section

Single bypass paper feed section

section

Multi bypass paper feed section

Single bypass paper feed section

Capacity of output tray 100 sheets

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

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

Label, (Single copy) Remark User adjustment of paper guide available Paper size A4, B5, A5, B6, A6 (Landscape) Paper weight 52 - 128g/m Paper feed capacity 1 sheet Kinds Standard paper, specified paper, recycled paper, OHP,

Label, Postal card, Envelop, Post card (Including

double postal without fold line) Remark User adjustment of 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 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 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 14 - 34.5 lbs. Paper feed capacity 1 sheet Kinds Standard paper, specified paper, recycled paper, OHP,

Label, Envelop Remark User adjustment of paper guide available

(15 - 21 lbs.)

(14 - 34.5 lbs.)

AL-1551CS SPECIFICATIONS 2 - 1

Page 8

Section, item Details

Optical section Scanning

section

Scanning system 3 CCDs (RGB) sensor scanning by lighting white lamp CCD sensor Resolution 600 dpi Lighting lamp Type CCFL

Voltage 560Vrms Power consumption 2.8W

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

Image forming Photoconductor type OPC (30ø)

Life 18k

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

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

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

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 100V Power consumption 800W

Electrical section Power source Voltage 100V, 110V, 120/127V, 230V, 240V

Frequency Common use for 50 and 60Hz

Power consumption Max. Less than 1000W

Average (during copying)

AL-1215 300 Wh/H *1) AL-1530CS 300 Wh/H *1) AL-1540CS 300 Wh/H *1)

AL-1551CS 310 Wh/H *1) Average (stand-by) ~ 127V 80Wh/H *1), 230V, 240V 75Wh/H *1) Pre-heat mode ~ 127V 16.5Wh/H *1), 230V, 240V 18Wh/H *1) Auto power shut-off mode ~ 127V 80Wh/H *1), 230V, 240V 75Wh/H *1)

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

AL-1551CS SPECIFICATIONS 2 - 2

Page 9

3. Copy performance

Section, item Details AL-1215 AL-1530CS AL-1540CS AL-1551CS

Copy magnification Fixed

Manual steps (manual, photo) 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.

magnification ratios

Zooming magnification ratios

Copy speed (CPM)

Image loss leading edge same size: 3.0mm or less (OC) / 4mm or less (SPF/R-SPF/Duplex)

Same size 12 15 15 15 Enlargement 12 15 15 15 Reduction 12 15 15 15 Same size 12 15 15 15 Enlargement 12 15 15 15 Reduction 12 15 15 15 Same size 12 12 12 12 Enlargement 12 12 12 12 Reduction 12 12 12 12 Same size 12 15 15 15 Enlargement 12 15 15 15 Reduction 12 15 15 15

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

3 Reduction + 2 Enlargement

(AB system : 25, 70, 86, 100, 141, 400%)

(Inch system : 25, 64, 78, 100, 129, 400%)

25 - 400%

(376 steps in 1% increments)

5 steps

A4 or Letter/100%/Auto Exposure

4.5mm or less (total of both sides)

Enlarge: 2mm or less (OC) / 3mm or less (SPF/R-SPF/Duplex)

Reduction (50%): 6.0mm or less (OC) / 8mm or less (SPF/R-SPF/

Duplex)

AL-1551CS SPECIFICATIONS 2 - 3

Page 10

4. GDI Printer

Print speed Max. 12ppm (A4, 8.5" x 11") (Mono CW chart / Pentium III 733Mhz / 128MB / Win 98) First print time 9.6 sec. (without data transfer time) Duplex Yes CPU None Memory 8MB (Duplex model: 16MB) Interface IEEE1284 / USB 1.1 Emulation GDI Resolution 600dpi *1 Supported OS Win 95 / 98 / Me / NT 4.0 / 2000 / XP WHQL support Yes *2

*1: Engine Resolution *2: By running change

5. Scan function

Type Flat Bed Color Scanner Scanning system Original table/SPF/RSPF (Valid only in the single mode) 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 / SPF: 8.52 (H) x 14.72 (V)"

Scan speed OC / SPF: Max. 2.88ms/line (Color/Gray scale), Max. 0.96 ms/line (B & W) Protocol TWAIN / WIA (Only XP)* / STI Interface USB1.1 Scanner utility Button Manager / Sharpdesk / Composer Scan key/lamp Yes Duplex scan No Supported OS Win 98 / Me / 2000 / XP Void area No (User settable by PC) WHQL supported Yes *

* Since only XP is subject to WHQL, XP will be supported to obtain WHQL.

Original position: Left Center

6. SPF

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)(15CPM model) Original placement Face up Original weight 52 to 90g/m Mixed feeding(Paper size) Performance Degraded 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.)

)(14 to 23.9 lbs.)

7. 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)(15CPM model) 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 15CPM

D to S 15CPM Original placement Face up Original weight 52 to 90g/m Mixed feeding(Paper size) Performance Degraded 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.)

)(14 to 23.9 lbs.)

AL-1551CS SPECIFICATIONS 2 - 4

Page 11

[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 Develop cartridge (Black) x 1

(Except Europe)

3 Develop cartridge (Black) x 1

(Europe)

4 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 220g)(Developer: Net weight 190g)6K(5% document)

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

AL-100TD 5

AL-110TD 5

AL-110DC 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-1551CS CONSUMABLE PARTS 3 - 1

Page 12

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 control label attachment position

Division No. Ex production 1 Option 2 Same pack 3

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

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.

Production control label attachment position(*1)

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

China product.

AL-1551CS CONSUMABLE PARTS 3 - 2

Page 13

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance

SPF/RSPF

Interface

1 Original cover 2 Side cover 3 Bypass tray 4 Bypass tray guides 5 Side cover open button 6 Front cover

7 Paper tray 8 Operation panel 9 Original table 10 Document feeder tray 11 SPF exit area *1 / RSPF exit area *2 12 Original guides 13 Feeding roller cover 14 USB interface 15 Parallel interface 16 Paper output tray 17 Paper output tray extension 18 Power switch 19 Handle 20 Power cord

*1 SPF only *2 RSPF only

9 8

6 7

Single bypass

16 17

18 19

2. Internal

1 TD cartridge lock release button 2 TD cartridge 3 Drum cartridge

4 Drum cartridge handle 5 Fusing unit release lever 6 Charger cleaner

7 Transfer charger

AL-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 1

Page 14

3. Operation panel

(AL-1551CS)

13 14 15 16 17 18

1 Duplex Mode select key and indicator

(RSPF only)

3 Light and dark keys and exposure indicators

Use to adjust the MANUAL or PHOTO exposure level. Selected exposure level is shown by a lit indicator. Use to start and terminate user program setting.

5 SPF/RSPF indicator 6 SPF misfeed indicator 7 Copy ratio selector key and copy ratio indicators

Use to sequentially select preset reduction/enlargement copy ratios. Selected copy ratio is shown by a lit indicator.

9 Display

Displays the specified copy quantity, zoom copy ratio, user program code, and error code.

11 ON LINE key / indicator

Lights up when the machine is used as a printer and scanner. *3

13 Paper feed location indicators

Light up to show the selected paper feed station.

15 Zoom keys / indicator

Use to select any reduction or enlargement copy ratio from 25% to 400% in 1% increments.

17 Clear key

• Press to clear the display, or press during a copy run to terminate copying.

• Press and hold down during standby to display the total number of copies made to date.

*1. Photoreceptor Cartridge Replacement indicator

After making 17,000 copies, the indicator will be “ON”, and after 1,000 copier more are made, the indicator starts blinking and machine will hard-stop (after current job) until a new cartridge is installed. End life of photoreceptor cartridge displays 3-digits x 2line (total 6-digits) by pressing CLEAR key for five seconds in user simulation.

*2. Toner Developer Cartridge Replacement

When toner density is lower than a specified level, the TONER DEVELOPER CARTRIDGE REPLACEMENT indicator lights up to warn the user. If the Toner Developer Cartridge is not replaced in that time, the Ready Lamp changes to blinking and then start to supply the toner after around 10 copies. (Cartridge replacement lamp continues to light.) If toner density is not back to specific level after two minutes, the READY indicator goes out and Toner Developer indicator starts blinking, and the copier stops.

2 Exposure mode selector key and indicators

Use to sequentially select the exposure modes: AUTO, MANUAL or PHOTO. Selected mode is shown by a lit indicator.

4 Alarm indicators

Drum replacement required indicator *1 Misfeed indicator

TD cartridge replacement required indicator *2

8 Copy ratio display (%) key

10 SCANNER key and indicator *3, *4

12 Power save indicator

Lights up when the copier is in a power save mode.

14 Tray select key

Use to select a paper feed station (paper tray or bypass tray).

16 Copy quantity keys

• Use to select the desired copy quantity (1 to 99).

• Use to make user program entries.

18 Print key and ready indicator

• Copying is possible when the indicator is on.

• Use to set a user program.

• Press to start copying

*3. Indicators on the operation panel

The ON LINE indicator and the start ( ) indicator indicate the state of the printer or scanner.

Start indicator

On: Indicates the unit is ready for copying or scanning is

being performed.

Blinking: Indicates that an interrupt print job is in progress, or that

the unit is initializing (the cover has been opened and closed or the power turned off and on).

Off: Indicates copying or scanning is being performed or the

unit is in the auto power shut-off mode.

SCANNER indicator

ON LINE indicator

AL-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 2

Start indicator

Power save indicator

Page 15

ON LINE indicator

The ON LINE key is pressed and on line and off line are changed. On: Indicates the unit is ready for printing or scanning is

being performed. (On line) Blinking: Printing or data is being received from a computer. Off: Copying is being performed. (Off line)

Power save indicator

On: Indicates the unit is in a power save mode.

Scanner indicator

On: The SCANNER ( ) key has been pressed and the unit

is in scanner mode. Blinking: A scan job is being executed from the computer, or scan

data is stored in the unit's memory. Off: The unit is in the copy mode.

*4. Using the SCANNER key to begin scanning

This scanning method can only be used if the Button Manager has been installed using the installer. To scan using this method, you must first complete the settings in Button Manager in your computer. For more information on Button Manager, see the online manual or the help file for Button Manager.

Note:

• Scanning is not possible during a copy job.

• If the unit is used to begin a scan job during a print job using the

parallel interface connection or the USB interface connection, the scan job will be stored and scanning will begin when the print job is completed.

• When scanning an original that has been placed in the SPF/

RSPF, only one original can be placed unless you are using Sharpdesk.

1) Press the SCANNER ( ) key.

The unit enters scan mode.

2) Place the original you wish to scan on the original table/SPF/

RSPF. For the procedure for placing the original, see "ORIGINAL

PLACEMENT".

3) Press the right copy quantity key to display the number of the

application that you wish to use for scanning. The application numbers are initially as follows.

The application numbers are initially as follows.

Application

number

Application launched

SC1 Sharpdesk (if installed) SC2 E-mail (your standard e-mail program in the

Windows OS you are using) SC3 Fax (if a fax program is installed) SC4 OCR (if an OCR program is installed) SC5 Microsoft Word (if installed) SC6 Any application set in Button Manager

4) Press the start ( ) key. The selected application launches and scanning begins.

AL-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 3

Page 16

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 feed solenoid 11 Paper feed solenoid CPFS2 Cassette Paper feed solenoid 2

AL-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 4

Page 17

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 Manual feed detection

switch 6 PPD1 sensor PPD1 Transmission sensor Paper transport detection 1 "L" at paper pass 7 Door switch DSW Micro-switch Door open/close detection

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

9 SPF sensor SPID/

10 SPPD sensor SPPD Transmission sensor Paper transport detection "L" at paper pass 11 SDOD sensor SDOD Transmission sensor SPF open/close detection Book

12 2nd cassette DSW Micro-switch 2nd cassette door open detection 1 or 0V of 5V at door open 13 PPD3 sensor PPD3 Transmission sensor Paper transport detection 3 "L" at paper pass

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

MFD Transmission sensor Manual feed paper detection

Transmission sensor Paper entry detection

SD SW

(single only)

(safety switch for 24V)

Cover open/close detection

sensor

"L" at paper detection

1 or 0V of 24V at door open

new drum "L" at paper pass

"L" at paper pass

AL-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5

Page 18

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 7 TCS PWB For toner sensor control 8 LSU PWB For laser control 9 I/F PWB Scanner/GDI Printer control (parallel I/F, USB I/F)

AL-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6

Page 19

7. Cross sectional view

15 16

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-1551CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 7

Page 20

[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

AL-1530CS/ AL-1540CS/ AL-1551CS

Software CD-ROM

Drum cartridge

(installed in unit)

(10cm)

8" (20cm)

8"(20cm)

TD cartridge

(10cm)

AL-1551CS UNPACKING AND INSTALLATION 5 - 1

Page 21

4. Unpacking

6. Installing the TD cartridge

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

5. Removing protective packing materials

1) Remove pieces of tape and protective cover. Then open the original cover and remove protective materials (a) and (b).

AL-1215/AL-1530CS

The TD cartridge replacement required ( ) indicator will light up when toner is needed. If copying is continued while the indicator is lit, copies will gradually become lighter until the copier stops and the indicator begins blinking. Replace the old TD cartridge by following the procedure given below.

Note:

• After the copier stops, it may be possible to make a few more copies by taking the TD cartridge out of the copier, shaking it horizontally, then reinstalling it. If copying is not possible after this operation, replace the TD cartridge.

• During long copy run of a dark original, the ready ( ) indicator may blink, the indicator may light up, and the copier may stop, even though toner cartridge is not empty. The copier will feed toner up to 2 minutes and then the ready ( ) indicator will light up. Press the print ( ) key to restart copying.

1) Ensure that the bypass tray is open and then open the side cover

by pressing the open button on the side cover.

AL-1540CS/AL-1551CS

2) Release the scan head locking switch.

Grasp here and turn in the direction of the arrow.

Lock Unlock

(AL-1551CS only)

AL-1551CS

AL-1540CS

2) Remove the CAUTION tape from the front cover and remove the

two protective pins from the fusing unit by pulling the strings upward one at a time.

Protective pins

CAUTION tape

3) Push 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.

AL-1551CS UNPACKING AND INSTALLATION 5 - 2

4 or 5 times

Page 22

5) Hold the tab of the protective cover and pull the tab to remove the cover.

6) Gently insert the TD cartridge until it locks in place.

7) Close the front cover and then the side cover by pressing the round projections near the side cover open button. The indicator will go out and the ready ( ) indicator will light up.

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.

Paper guide (B)

5) Fan the copy paper and insert it into the tray. Make sure 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.

6) Gently push the paper tray back into the copier.

Note: After loading copy paper, to cancel the blinking "H" without

restarting copying, press the clear ( ) key. The "P" in the display will go out and the ready ( ) indicator will light up.

Paper guide (A)

7. Loading copy paper

Note: This copier is equipped with two paper trays. Load copy paper

into the two paper trays.

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 the pressure plate of the paper tray.

3) Store the pressure plate lock that was removed in step 2 and the screw that was removed when unpacking the machine in the front of the paper tray. To store the pressure plate lock, rotate the lock to fix it on the relevant location.

4) Adjust the paper guides on the paper tray to the copy paper width and length. Squeeze the lever of paper guide (A) and slide the guide to match with the width of the paper. Move paper guide (B) to the appropriate slot as marked on the tray.

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 the AL-1200(USB) series

The supplied CD-ROM includes software for this unit.

MFP driver

Scanner driver

Permits you to operate scanning function of this unit with TWAIN-compliant and WIA-compliant application.

Printer driver

Enables you to use the printer function of this unit with your computer.

Print Status Window

The print state and information on current printing are displayed on the status monitor window.

Sharpdesk

An integrated software environment that makes it easy to manage document and image files and launch applications.

Button Manager

Button Manager enabling the SCANNER key located on the unit.

AL-1551CS UNPACKING AND INSTALLATION 5 - 3

Page 23

(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 USB1.1

or bi-directional parallel interface

(IEEE 1284)

Operating

system

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

, Windows XP Home Edition*3

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

better)

Hard disk free

150MB or more

space Other

requirement for

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

hardware

*1: Compatible with Windows 98, Windows Me, Windows 2000 Profes-

sional, Windows XP Professional or Windows XP Home Edition

preinstalled model with USB interface equipped as standard. *2: Printing is unavailable in MS-DOS mode. *3: The administrator's authorization is required to install this software

using this installer.

(Before installation)

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

MFP Driver

Printer

driver/

Print Status

Scanner

driver

Window

Users of Windows 98/Me/2000/XP who will use the

Available Available Available USB interface connection

Users of Windows 98/Me/2000/XP who will use the parallel interface connection

Available

Not

Available

Windows 95/NT 4.0 users

*1: When the unit is connected through the parallel port, the Print Sta-

tus Window can only be used when the parallel port is set to ECP mode. To set the parallel port mode, refer to your computer manual or ask the manufacturer of your computer.

*2: Sharpdesk can be installed when using a parallel interface connec-

tion, however, the unit's scanner function cannot be used.

• If you are using some of your computer's memory as a RAM drive, the printer driver may not be allocated the correct amount of memory. In such a case, reduce the size of your RAM disk, or do not use the RAM disk. Please refer to your Windows documentation for further information.

• Is there another GDI printer driver or a Windows Printing System printer driver already installed? If installed, change the printer port setting. For the change of the printer port setting, see "USING OTHER INSTALLED DRIVERS".

Button

Manager

Not

Available

Sharpdesk

Available

(Flow of installation)

Refer to the following table and then begin installation

Operating

system

Windows XP

Windows 98

Windows Me

Windows

2000

Windows 95/

NT 4.0

Interface Reference pages for how to install

USB/

Installing onto Windows XP (USB/parallel

Parallel

interface) Installing onto Windows 98/Me/2000 (USB

USB

interface) Installing onto Windows 95/98/Me/NT4.0/ 2000 (Parallel interface) Installing onto Windows 98/Me/2000 (USB

USB

interface) Installing onto Windows 95/98/Me/NT4.0/ 2000 (Parallel interface) Installing onto Windows 98/Me/2000 (USB

USB

interface) Installing onto Windows 95/98/Me/NT4.0/

2000 (Parallel interface) Installing onto Windows 95/98/Me/NT4.0/

2000 (Parallel interface)

(Installing the software)

The following term is used in this section.

MFP

Means the unit as a printer and scanner.

• For this description, it is assumed that the mouse is configured for right hand operation.

• To print or scan, the MFP must be in the online state.

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

• If any error message appears, solve the problem following the instructions on the screen. After your problem is solved, the installing procedure will be continued. Depending on your problem, you may have to exit the installer. In this case, click the "Cancel" button to exit the installer. After solving your problem, reinstall the software from the beginning.

A. Windows XP (USB/parallel interface)

Before starting the installation, make sure the USB or parallel interface cable is not connected to the MFP.

1) Insert the supplied CD-ROM into your CD-ROM drive.

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

the CD-ROM icon.

• When any of "Found New Hardware Wizard" messages appear during the software installation, be sure to click the "Cancel" button.

3) Double-click the "Setup" icon. If the language selection screen appears after you double click the

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

4) Select the software packages to be installed, and then click the "Next" button.

The software packages with checkmark on the list on the screen will be installed.

Click the "Display README" button to show the information on the selected package.

AL-1551CS UNPACKING AND INSTALLATION 5 - 4

Page 24

• If you are using the parallel interface connection, do not select the Button Manager checkbox because this feature is not supported with the parallel interface.

• If the following screen appears, click the "OK" button. Review the contents in "BEFORE INSTALLATION", and then select only appropriate the software packages to be installed.

5) Review the software packages to be installed on the screen, and then click the "Start" button.

The software packages to be installed will be displayed on the screen. If inappropriate packages are displayed, click the "Back" button to select appropriate packages again.

3. When a message appears that lets you specify the location for the software to be installed, click the "Next" button.

4. If the program displays, "Do you want the Button Manager added to Windows Startup?", check "Yes" and click the "OK" button.

The setup program will start to copy the files.

5. Click the "Finish" button when the message informs you that setup is successful.

The Sharpdesk installer will start.

8) Begin installation of the Sharpdesk (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome to Sharpdesk

installation" window, click the "Next" button.

2. Read the message in the "Information" window, and then click

the "Next" button.

3. When the "Choose Destination Location" window appears, click

the "Next" button.

4. When the "Select Program Folder" window appears, click the

"Next" button. The setup program will start to copy the files.

If the dialog box asking "If you have TIFF files saved using Photo-Shop or Imaging for Windows you should hit Skip" appears. Answer the question to continue the Sharpdesk installation.

6) Copying files for MFP driver installation and parallel interface setup (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome" window, click

the "Next" button.

2. A dialog box appears asking you to verify that the USB or paral-

lel interface cable is not connected to the MFP. Make sure that the interface cable is not connected and click the "Next" button.

3. Click the "Next" button in the dialog box to install the MFP driver

or Cancel to quit the installation. The setup program will start to copy the files.

If the following screen appears while the files are being copied (the message may appear more than once), click "Continue Anyway".

4. When the "The MFP driver installation is complete." dialog box

appears, click the "OK" button. The Button Manager installer will start.

7) Begin installation of the Button Manager (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome" window, click

the "Next" button.

2. Read the message in the "Please read the following informa-

tion." window, and then click the "Next" button.

5. Click the "Finish" button when the message informs you that Setup is complete.

9) Click the "Close" button when the message informs you that "Setup has finished". When the "Now connect the MFP interface cable to the PC" dialog box appears, click the "OK" button.

• After the installation, a message to restart your computer may be

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

• For parallel interface connection ensure that your computer and

MFP are turned off before connecting the cable.

10) Connect the USB interface cable or parallel interface cable (see

page 5-8). Windows will detect the MFP and the Plug and Play screen will

appear. If you are using Windows XP with the parallel interface, go to step 12.

11) Begin installation of the scanner driver.

1. "SHARP AL-xxxx" (where xxxx is the model name of your MFP) will appear in the "Found New Hardware Wizard" dialog box. Select "Install the software automatically (Recommended)" and click the "Next" button.

2. The "Install hardware" dialog box will appear. Click the "Continue Anyway" button.

3. When installation of the driver is completed, click the "Finish" button to finish the scanner driver installation.

AL-1551CS UNPACKING AND INSTALLATION 5 - 5

Page 25

12) Begin installation of the printer driver.

2. The "Hardware Installation" dialog box will appear. Click the "Continue Anyway" button.

3. When installation of the driver is completed, click the "Finish" button to finish the printer driver installation.

You have completed the installation of all the software.

B. Windows 98/Me/2000 (USB interface)

Before starting the installation, make sure the USB interface cable is not connected to the MFP.

1) Insert the supplied CD-ROM into your CD-ROM drive.

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

• When any of "Hardware Found", or "Found New Hardware Wiz-

ard" messages appear during the software installation, be sure to click the "Cancel" button.

3) Double-click the "Setup" icon.

• If the language selection screen appears after you double click

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

4) Select the software packages to be installed, and then click the "Next" button.

The software packages with checkmark on the list on the screen will be installed. Click the "Display README" button to show the information on the selected package.

• If the following screen appears, click the "OK" button. Review the

contents in "BEFORE INSTALLATION", and then select the appropriate driver software packages to be installed.

5) Review the software packages to be installed on the screen, and then click the "Start" button.

The software packages to be installed will be displayed on the screen. If inappropriate packages are displayed, click the "Back" button to select appropriate packages again.

6) Copying files for MFP driver installation.

1. After confirming the message in the "Welcome" window, click

the "Next" button.

2. A dialog box appears asking you to verify that the interface

cable is not connected to the MFP. Make sure that the interface cable is not connected and click the "Next" button.

3. Click the "Next" button in the dialog box showing the files to be

copied for installation of the MFP driver. The setup program will start to copy the files. In Windows 2000, if the following screen appears while the files

are being copied (the message may appear more than once), click "Yes" in Windows 2000.

4. The following screen appears when all of the files for the USB interface connection have been copied. If you are not using a parallel interface cable for connection to the MFP, please click the "No" button.

5. When the "The MFP driver installation is complete." dialog box appears, click the "OK" button.

The Button Manager installer will start.

7) Begin installation of the Button Manager (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome" window, click

the "Next" button.

2. Read the message in the "Please read the following informa-

tion." window, and then click the "Next" button.

3. When a message appears that lets you specify the location for

the software to be installed, click the "Next" button.

4. If the program displays, "Do you want to add Button Manager to

Startup program?", check "Yes" and click the "OK" button. The setup program will start to copy the files.

5. Click the "Finish" button when the message to inform you of the

completion of the installation appears. The Sharpdesk installer will start.

8) Begin installation of the Sharpdesk (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome to Sharpdesk

installation" window, click the "Next" button.

2. Read the message in the "Information" window, and then click

the "Next" button.

3. When the "Choose Destination Location" window appears, click

the "Next" button.

4. When the "Select Program Folder" window appears, click the

"Next" button. The setup program will start to copy the files. If the dialog box asking "If you have TIFF files saved using

Photo-Shop or Imaging for Windows you should hit Skip" appears. Answer the question to continue the Sharpdesk installation.

5. Click the "Finish" button when the message to inform you of the

completion of the installation appears.

9) Click the "Close" button when the message to inform you of the completion of the installation appears. When the "Now connect the MFP interface cable to the PC. This will finalize the drivers installation and settings." dialog box appears, click the "OK" button.

AL-1551CS UNPACKING AND INSTALLATION 5 - 6

Page 26

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

10) Connect the USB interface cable (see page 5-8). Windows will detect the MFP and the Plug and Play screen will

appear.

11) Follow the instructions in the Plug and Play screen that appears in your version of Windows to begin the installation.

You have completed the installation of the software.

C. Windows 95/98/Me/NT4.0/2000 (Parallel interface)

Before starting the installation, make sure the USB or parallel interface cable is not connected to the MFP.

1) Insert the supplied CD-ROM into your CD-ROM drive.

2) Double-click "My Computer", and then double-click the CD-ROM

icon.

• When any of "Hardware Found", or "Found New Hardware Wizard" messages appear during the software installation, be sure to click the "Cancel" button.

3) Double-click the "Setup" icon.

• If the language selection screen appears after you double click the "Setup" icon, select the language you wish to use and click the "Next" button. (Normally, the correct language is selected automatically.)

4) Select the software packages to be installed, and then click the "Next" button.

The software packages with checkmark on the list on the screen will be installed.

Click the "Display README" button to show the information on the selected package.

6) Check the contents of the package on the screen, and then click the "Start" button.

The software packages to be installed will be displayed on the screen. If inappropriate packages are displayed, click the "Back" button to select only appropriate software packages.

7) Copying files for MFP driver installation and parallel interface setup (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome" window, click

the "Next" button.

2. A dialog box appears asking you to verify that the USB or paral-

lel interface cable is not connected to the MFP. Make sure that the interface cable is not connected and click the "Next" button.

3. Click the "Next" button in the dialog box to install the MFP driver

or Cancel to quit the installation. The setup program will start to copy the files. In Windows 2000, if the following screen appears while the files

are being copied (the message may appear more than once), click "Yes" in Windows 2000.

4. The following screen appears. Click the "Yes" button, and then

the Model screen will appear. Select the model number that is the same as the model name of your MFP and click the "Next" button.

Be sure to select the displayed model number that is the same as the MFP's model name. If they are not the same, the driver will not be installed correctly.

5. Establish the printer settings and click the "Next" button.

Select "LPT1" for the port to be used. If "LPT1" does not appear, it is likely that another printer or peripheral device is using "LPT1". Check your other printers and peripheral devices, and change the port setting as needed so no device is using "LPT1". If you wish the MFP to be your default printer, select "Yes". If not, select "No".

• In Windows 95/NT 4.0, "Button Manager" does not appear. In Windows 98/Me/2000, do not select the "Button Manager" checkbox. because this is not supported when using the parallel interface.

5) The next screen appears. Make sure that the parallel interface cable is not connected, and click "OK".

Windows 95/NT 4.0 Windows 98/Me/2000

AL-1551CS UNPACKING AND INSTALLATION 5 - 7

6. When the "Setup has completed gathering all necessary installation information" dialog box appears, click the "Yes" button.

The parallel interface driver is installed.

7. When the "The MFP driver installation is complete." dialog box appears, click the "OK" button.

The Sharpdesk installer will start.

8) Begin installation of the Sharpdesk (This step will start if it was selected in step 4).

1. After confirming the message in the "Welcome to Sharpdesk

installation" window, click the "Next" button.

2. Read the message in the "Information" window, and then click

the "Next" button.

3. When the "Choose Destination Location" window appears, click

the "Next" button.

Page 27

4. When the "Select Program Folder" window appears, click the "Next" button.

The setup program will start to copy the files. If the dialog box asking "If you have TIFF files saved using

Photo-Shop or Imaging for Windows you should hit Skip" appears. Answer the question to continue the Sharpdesk installation.

Connecting the parallel interface cable

1) Obtain an IEEE1284 shielded parallel interface cable.

2) Ensure that your computer and unit are turned off.

3) Insert the cable into the parallel interface connector located on the rear of the unit, and fasten with clasps.

5. Click the "Finish" button when the message to inform you of the completion of the installation appears.

9) Click the "Close" button when the message to inform you of the completion of the installation appears.

• After the installation, a message to restart your computer may be

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

10) Connect the parallel interface cable.

You have completed the installation of all the software.

• For parallel interface connection ensure that your computer and MFP are turned off before connecting the cable (see page 5-8).

10. Connecting the interface cable

This unit includes both USB and parallel interface connectors. Interface cables for connecting the unit to your computer are not included with this unit.

Caution:

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

• 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 interface cable before installing the MFP driver. The interface cable should be connected during installation of the MFP driver.

Connecting the USB interface cable

1) Obtain a shielded USB interface cable.

2) Insert the cable into the USB interface connector located on the

rear of the unit.

4) Insert the other end of the cable into the interface connector of your computer.

11. Parallel interface

This printer uses a bi-directional parallel interface. Use the supplied interface cable.

Connector

36-pin ACON RBE42-36K1153 female connector or equivalent connector

Cable

Shielded type bi-directional parallel interface For best results, use a printer interface cable which is IEEE1284 compliant.

Pin configuration

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

36 19

Pin No. Signal name Pin No. Signal name

1STB 2 DATA1 20 GND (DATA1 RET) 3 DATA2 21 GND (DATA2 RET) 4 DATA3 22 GND (DATA3 RET) 5 DATA4 23 GND (DATA4 RET) 6 DATA5 24 GND (DATA5 RET) 7 DATA6 25 GND (DATA6 RET) 8 DATA7 26 GND (DATA7 RET) 9 DATA8 27 GND (DATA8 RET)

10 ACKNLG

11 BUSY 29 GND (BUSY RET) 12 PE (Paper End) 30 GND (PE RET) 13 SLTC 31 INPRM 14 AUTO LF 15 (NC) 33 (NC) 16 GND (0 V) 34 (NC) 17 FG 35 +5 V 18 +5 V 36 SLTC IN

19 GND (STB RET)

28 GND

32 FAULT

(ACKNLG

RET)

3) Insert the other end of the cable into the interface connector of your computer, or the USB hub connected to your computer.

AL-1551CS UNPACKING AND INSTALLATION 5 - 8

Page 28

12. USB interface

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

13. 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, see "TD CARTRIDGE REPLACEMENT".

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. See "PREPARING THE UNIT FOR INSTALLATION".

8) Pack the unit into the carton. See "CHECKING PACKED COMPONENTS AND ACCESSORIES".

AL-1551CS UNPACKING AND INSTALLATION 5 - 9

Page 29

[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-1551CS 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 30

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-1551CS COPY PROCESS 6 - 2

Page 31

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.

AL-1551CS COPY PROCESS 6 - 3

Page 32

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-1551CS COPY PROCESS 6 - 4

Page 33

[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 Parallel

only by USB connection.

(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-1551CS OPERATIONAL DESCRIPTIONS 7 - 1

Page 34

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 simulation.

(Spectrum characteristics of the color CCD)

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 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.

(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

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-1551CS OPERATIONAL DESCRIPTIONS 7 - 2

Page 35

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

No Component Function

1 Semiconductor laser Generates laser beams. 2 Collimator lens Converges laser beams in parallel. 3 Polygon mirror,

polygon motor

4 BD (Mirror, lens, PWB) Detects start timing of laser scanning. 5fθ lens Converges laser beams at a spot on the

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

Reflects laser beams at a constant rpm.

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 20.787rpm

No. of mirror surfaces: 6 surfaces

4. Fuser section

a ≠ b ≠ c

ab c

d = e = f

def

f θ LENS

AL-1551CS OPERATIONAL DESCRIPTIONS 7 - 3

Page 36

A. General description

54 3

8 9

11121314

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.

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-1551CS OPERATIONAL DESCRIPTIONS 7 - 4

Page 37

(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-1551CS OPERATIONAL DESCRIPTIONS 7 - 5

Page 38

(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-1551CS OPERATIONAL DESCRIPTIONS 7 - 6

MPFS

Page 39

(3) Conditions of occurrence of paper misfeed

7 8

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.

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 20T

Gear 38T

Process detection switch

Projection

Gear pawl

7. SPF section

A. Outline

The SPF (Single Path Feeder) is installed to the AL-1540CS 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

1 Pickup roller 2 Sheet of document for

paper feed 3 Set detection ACT 4 Paper stopper 5 Document feed roller 6 Separation sheet

AL-1551CS OPERATIONAL DESCRIPTIONS 7 - 7

7 Paper entry sensor 8 PS roller D 9 Transport follower roller 10 Paper exit roller

11 Paper exit follower roller 12 Document tray

Page 40

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

SPUS ON

SPPD ON

(Exposure)

(Document exit)

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).

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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.

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[8] DISASSEMBLY AND ASSEMBLY

Transfer charger

Lock pawl rear

Lock pawl front

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: CN119) 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. SPF section

10. 2nd cassette section

11. Duplex motor section

12. Reverse roller section

13. RSPF section

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

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-1551CS DISASSEMBLY AND ASSEMBLY 8 - 1

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2) Set the charger cleaner to the transfer unit, and move it recipro-

cally 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.

Charger wire

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

1mm

Protrusion

1.5mm

Fig.1

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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 10 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-1551CS DISASSEMBLY AND ASSEMBLY 8 - 3

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

Marking line

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

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

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.

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

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4. Fusing section

PPD2 sensor

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.

Thermistor

6) Remove the screw and remove the PPD2 sensor.

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

Pressure roller

Heater lamp

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

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 (*).

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.

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

roller.

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

Heat roller

5. Tray paper feed/transport section

A. List

No. Part name Ref.

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

B. Disassembly procedure

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

2) Disconnect three positions of the connectors.

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

4) Remove the fan duct.

8) Remove two screws and remove the thermo unit.

3) 2

4) Remove each connector and three screws, and remove the MCU PWB.

C. Assembly procedure

For assembly, reverse the disassembly procedure.

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5) Remove the PWB insulation mylar and remove the paper transport

detection sensor (PPD2).

7) Remove two springs and open the intermediate frame unit.

6) Remove two screws and remove the toner motor.

8) Remove the pulleys on the both sides and remove the paper exit roller.

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9) Pull out the paper exit roller knob and remove the belt.

10) Release the belt pulley (a) lock and remove the belt pulley bearing.

11) Remove the paper exit roller.

12) Remove the harness guide.

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13) Remove five screws and remove the main drive plate and the belt.

LSU spacer not required

Machine rear side Add one LSU spacer.

Machine front side Add one LSU spacer.

15) Remove six screws and remove the LSU unit.

CAUTION:Attach the gears securely

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

The scan inclination classification is indicated on the right or the left of the LSU production number label according to the classification.

When replacing the LSU, add the spacer according to the scan inclination classification. (The spacer is packed together with every LSU.)

Scan inclination classification check Scan inclination classification 1: +0.26 – +0.5 (White marking on

the right of the production number label) Scan inclination classification 2: – 0.25 – +0.25 (White marking) Scan inclination classification 3: – 0.5 – – 0.26 (White marking on

the left of the production number label)

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Addition of the spacer

2 4

Scan inclination classification 1: Add the LSU spacer to the rear side of the machine.

Scan inclination classification 2: No need to add the spacer. Scan inclination classification 3: Add the LSU spacer to the front

side of the machine.

Fit the holes and attach.

Insert into the positioning boss.

[Note for assembling the LSU]

When installing the LSU, turn the LSU clockwise and fix with screws in order to provide an attachment backlash in the proper direction.

Observe the following sequence of fixing screws.

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

Insert into the positioning boss.

Fit the holes and attach.

Machine front side

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17) Remove two screws and remove the fusing connector.

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

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

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

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

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

PS roller unit

PS semi-circuler

PS semi-circular earth plate

earth plate

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

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

Clutch unit

Paper feed roller

B. Disassembly procedure

Single unit

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

Back

Front

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

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

Back Wire treatment

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3) Remove three screws and remove the single manual feed upper

Wire treatment

frame.

5) Remove the E-ring and remove the manual paper feed transport roller.

6) Remove the cassette detection switch.

4) Remove the PPD1 sensor PWB.

Wire treatment

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7) Remove the multi cover.

Multi cover

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

Back Wire treatment

Multi unit

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

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

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4) Remove two screws and remove the multi feed bracket unit from

Multi paper feed solenoid

the multi paper feed upper frame.

6) Remove the pick-up roller.

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

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

C. Assembly procedure

For assembly, reverse the disassembly procedure.

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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

2) Disconnect the connector.

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

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

7. Rear frame section

A. List

No. Part name Ref.

1 Mirror motor 2 Main motor 3 Exhaust fan motor

B. Disassembly procedure

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

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

C. Assembly procedure

AL-1551CS DISASSEMBLY AND ASSEMBLY 8 - 17

For assembly, reverse the disassembly procedure.

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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.

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

2) Remove the pickup unit.

* When installing the parts, be careful of the hole position of the paper

frame Spring.

C. Assembly procedure

For assembly, reverse the disassembly procedure.

9. SPF section (SPF model only)

No. Part name Ref.

A Sensor PWB B Pickup solenoid C Clutch D Manual paper feed roller, pickup roller EBelt F SPF motor

G Paper entry sensor

H PS roller

I Paper exit roller

Pickup unit removal

1) Remove three fixing pawls from the bottom of the machine.

2) Remove the front cover and the rear cover.

A. Sensor PWB

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

2) Remove the upper cover.

1) Remove two screws.

2) Remove the sensor PWB.

3) Remove the harness.

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B. Pickup solenoid

1) Remove two screws.

2) Remove the pickup solenoid

D. Manual paper feed roller, pickup roller

1) Lift the paper stopper.

2) Slide the take-up roller unit.

3) Slide the bushing in the direction of the arrow.

4) Remove the take-up roller unit.

* When installing, hang iron core A on the solenoid arm.

C. Clutch

1) Remove the E-ring.

2) Remove the pulley and bush.

3) Slide the bush in the arrow direction.

4) Lift the clutch, and 5) remove the clutch.

* When installing the take-up roller, hang the projection of the take-up

roller unit on the solenoid arm.

1) Remove the parts.

2) Remove the manual paper feed roller.

3) Remove the pickup roller.

4) Remove the parts.

Transport unit removal

1) Remove two screws.

2) Remove the document tray unit.

1) Remove the E-ring.

2) Remove the parts.

3) Remove five screws.

4) Remove the transport unit.

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E. Belt

1) Remove the belt.

G. Paper entry sensor

1) Loosen the screw.

2) Open the paper exit paper guide.

3) Remove the paper entry sensor.

4) Remove the harness.

F. SPF motor

1) Remove the harness.

2) Remove four screws.

3) Remove the drive unit.

4) Remove the belt.

5) Remove two screws.

6) Remove the SPF motor.

H. PS roller

1) Remove the parts.

2) Remove the paper supply roller.

I. Paper exit roller

1) Remove the parts.

2) Remove the paper exit roller.

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10. 2nd cassette section

No. Part name Ref.

A Paper sensor B Cassette detection SW C Paper feed solenoid D Transport roller E Paper feed clutch F 2nd paper feed roller

Paper feed unit removal

1) Open the right cabinet.

2) Remove three screws.

3) Remove one connector from MCU.

4) While tilting down the 2nd connection arm A, pull and remove the paper feed unit toward you.

1) Remove the screw.

2) Remove the rear cover. * When installing, engage the pawl and install the unit.

* When installing, securely insert two bosses C on the machine side

and two bosses D on the paper feed unit side. Be sure to secure the ground wire B.

* Insert the 2nd page feed.

A. Paper sensor

1) Remove the pawl.

2) Remove the paper sensor.

3) Remove the harness.

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B. Cassette detection switch

1) Remove the pawl.

2) Remove the cassette detection switch.

3) Remove the harness.

E. Paper feed clutch

1) Remove the E-ring.

2) Remove the paper feed clutch.

3) Remove the parts.

C. Paper feed solenoid

1) Remove the screw.

2) Remove the connector.

3) Remove the paper feed solenoid.

D. Transport roller

1) Remove two E-rings.

2) Remove the transport roller.

* When installing, fit the cut surface A.

F. 2nd paper feed roller

1) Remove the E-ring and the parts.

2) Remove the 2nd paper feed roller.

* Install so that the earth spring A is brought into contact over bearing

AL-1551CS DISASSEMBLY AND ASSEMBLY 8 - 22

* When installing, hang the 2nd connection arm on the 2nd connection

arm Spring B. Be sure to install so that the earth spring C is in contact under the bearing D.

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11. 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 each connector.

2) Remove four screws, and remove the MCU PWB.

C. Remove the Duplex motor.

1) Remove two screws.

2) Remove the Duplex motor cover.

3) Remove the Duplex motor.

3) Disconnect the connector.

4) Remove five screws, and remove the I/F PWB.

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

with the belt on the main body side.

12. 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.

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13. 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.

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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.

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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.

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K. Belt 1

1) Remove the belt.

L. Belt 2

1) Remove three screws.

2) Remove the drive unit.

3) Remove the belt.

M. SPF motor

1) Remove the harness.

2) Remove two screws.

3) Remove the SPF motor.

N. Solenoid

1) Remove the harness.

2) Remove two screws.

3) Remove the solenoid.

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

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O. Clutch

1) Cut the band with nippers.

2) Remove the harness.

3) Remove the clutch.

(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.

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.

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R. Transport roller 1.

(1) Remove the parts.

1) Remove the parts.

(2) Remove the parts.

1) Loosen the screw.

2) Open the paper exit paper guide.

3) Remove the parts.

(3) Remove the transport roller.

1) Remove the paper exit paper guide.

2) Remove the transport roller.

S. Paper exit roller

(1) Remove the parts.

1) Remove two screws.

2) Remove the parts.

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(2) Remove the paper feed paper guide upper.

1) Remove two screws.

2) Remove the paper feed paper guide upper.

T. Solenoid

(1) Remove the reverse gate

1) Remove the ring

2) Remove the reverse gate

(3) Remove the paper exit roller.

1) Remove the parts.

2) Remove the paper exit roller.

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

positions of the spring.

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

(2) Remove the solenoid.

1) Remove the screw.

2) Remove the solenoid.

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[9] ADJUSTMENTS

100 110 120 130

150

140

mm 1/2mm

JAPAN

HARDENED STAINLESS

Shizuoka

100

110

120 130

150

140

mm 1/2mm

JAPAN

HARDENED STAINLESS

Shizuoka

110

10 20

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

Paper feed direction

Reference

Comparison point

Original (Scale)

Copy

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 SIM 48-1.

(1) Outline

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

Automatic adjustment: The width of the reference line marked on the shading correction plate is scanned to perform the main scanning (front/rear) direction magnification ratio adjustment automatically.

Manual adjustment: The adjustment is made by manual key operations. (In either of the automatic and manual adjustments, 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 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

• Screwdriver (+)

•Scale

c. 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

X 100 (%)

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 SIM 48-1 to select the main scanning direction copy magnification ratio adjustment mode. To select the adjustment mode, use the copy mode select key.

In the case of the automatic adjustment, when the PRINT switch is pressed, the mirror base unit moves to the white plate for shading to scan the width of the reference line, calculating the correction value and displaying and storing this value.

After execution of the automatic adjustment, go out from the simulation mode and make a copy to check the magnification ratio.

If the magnification ratio is not in the specified range (100±1.0%), manually adjust as follows.

Adjustment mode Lighting lamp

Main scanning direction auto copy

Auto exposure lamp ON

magnification ratio adjustment Main scanning direction manual copy

Manual exposure lamp ON

magnification ratio adjustment Sub scanning direction copy

Photo exposure lamp ON

magnification ratio adjustment SPF mode scanning direction

magnification ratio adjustment

Auto, Manual, Photo lamp ON

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.

8) Set the adjustment mode to Manual with the copy mode select key.

9) Enter the new set value of main scanning direction copy magnification ratio with the copy quantity set key, and press the COPY button.

10) 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%.

(3) Sub scanning direction copy magnification ratio

a. Cases when the adjustment is required

1) When the scanner unit drive section is disassembled or the part is replaced.

2) When the main PWB is replaced.

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

4) When "U2" trouble occurs.

b. Necessary tools

•Scale

AL-1551CS ADJUSTMENTS 9 - 1

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c. 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.

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 SIM 48-1 to select the sub scanning direction copy magnification ratio adjustment mode. To select the adjustment mode, use the copy mode select key. (Photo exposure lamp ON)

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

B. Image position adjustment

There are following five kinds of image position adjustments, which are made by laser control except for the image scan start position adjustment. For the adjustments, SIM 50 - 01, 50 - 10, 50 - 18 and SIM 50 - 19 are used.

No. Adjustment item Simulation

1 Print start position 50 - 01 2 Image lead edge void amount 50 - 01 3 Image scan start position 50 - 01 4 Image rear edge void amount 50 - 01 5 SPF image scan start position 50 - 01 6 Center offset 50 - 10 7 Memory reverse position adjustment in

duplex copy 8 Duplex copy rear edge void adjustment 50 - 19 9 Duplex back print start position 50 - 19

To select the adjustment mode with SIM 50 - 01, use the copy mode select key.

The relationship between the adjustment modes and the lighting lamps are as shown in the table below.

Adjustment mode Lamp ON

Print start position (Main cassette paper

AE, main cassette lamp

feed) Print start position (2nd cassette paper

AE, 2nd cassette lamp

feed) Print start position (Manual paper feed) AE, manual feed lamp Image lead edge void quantity TEXT lamp Image scan start position PHOTO lamp Image rear edge void quantity AE, TEXT, PHOTO

lamp

SPF image scan start position AE, TEXT lamp

: Supported for the installing model and skipped for non-installing

mode.

To select the adjustment mode with SIM 50 - 10, use the copy mode select key.

The relationship between the adjustment modes and the lighting lamps are as shown in the table below.

Machine with the multi manual paper feed unit

Adjustment mode Lamp ON

Print center offset (Main cassette paper

AE, main cassette lamp

feed) Print center offset (Manual paper feed) AE, manual paper feed lamp OC/document center offset AE, TEXT lamp

Machine with the single manual paper feed unit

Adjustment mode Lamp ON

Print center offset (Main cassette paper

AE, main cassette lamp

feed) Print center offset (Manual paper feed) AE, manual paper feed lamp OC/document center offset AE, TEXT lamp

50 - 18

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%.

AL-1551CS ADJUSTMENTS 9 - 2

Duplex copy rear edge void adjustment mode

Adjustment mode Lamp ON

Image cut rear edge void quantity

AE lamp

(RSPF) Paper rear edge void quantity TEXT lamp Print start position (Duplex back) PHOTO lamp RSPF (Back) original center offset AE, TEXT, PHOTO lamps

Page 74

(1) Lead edge adjustment

Scale image

Paper rear edge

Void amount (Standard value: 2 3mm)

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 SIM 50 - 01

3) Set the print start position (AE lamp ON) (A), the lead edge void amount (TEXT lamp ON) (B), and the scan start position (PHOTO lamp ON) (C) to 0, and make a copy of a scale at 100%.

4) Measure the image loss amount (R mm) of the scale image. Set C = 10 X R (mm). (Example: Set the value of C to 30.) When the value of C is increased by 10, the image loss is decreased by 1mm. (Default: 50)

5) Measure the distance (H mm) between the paper lead edge and the image print start position. Set A = 10 X H (mm). (Example: Set the value of A to 50.) When the value of A is increased by 10, the image lead edge is shifted to the paper lead edge by 1mm. (Default: 50)

6) Set the lead edge void amount to B = 50 (2.5mm). When the value of B is increased by 10, the void amount is increased by about 1mm. For 25 or less, however, the void amount becomes zero. (Default: 50)

(Example)

Distance between paper lead edge and image: H = 5mm

Image loss: R = 3mm

5mm

(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

A4 size rear edge

2) Execute SIM 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.

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.

Note: The rear edge void cannot be checked with the first sheet after

entering the simulation mode, the first sheet after turning off/on the power, or the first sheet after inserting the cassette. Use the second or later sheet to check the rear edge void.

(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.

Document guide

10mm

2) Execute SIM 50 - 10 to select the print center offset (cassette paper feed) adjustment mode. The set adjustment value is displayed on the copy quantity display.

AL-1551CS ADJUSTMENTS 9 - 3

Center

Copy paper (A4 or 8 1/2″ × 11″)

Page 75

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)

(Copy B)

2.0mm or less

Shift

2.0mm or less

Copy image

Copy paper folding line

Copy image

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

Shift

(Paper feed direction)

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.

C. Necessary tool for copy density adjustment

• 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

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

Use SIM 46 - 01 to set the copy density for each copy mode. 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.

White paper

Test chart

AL-1551CS ADJUSTMENTS 9 - 4

Page 76

(2) Perform the adjustment in each mode.

1) Execute SIM 46-1.

2) Select the mode to be adjusted with the exposure mode select key. Set the exposure level to 3 for all adjustment. (Except for the auto mode.)

(1)

(2)

(1) Mode select key/display

lamp

(2) Exposure level select

key/display lamp

Adjustment mode

Exposure mode

display lamp Auto mode Auto lamp ON "3" is slightly copied. Manual mode Manual lamp ON "3" is slightly copied. Photo mode Photo lamp ON "3" is slightly copied. Manual T/S mode Manual lamp/Photo lamp ON"3" is slightly copied.

Auto T/S mode Auto lamp/Photo lamp ON "3" is slightly copied.

3) Make a copy. Check the adjustment level (shown in the above table) of the exposure test chart (Sharp Gray Scale).

Sharp Gray Scale adjustment level

Non toner save mode

1 10

23456789

Sharp gray chart adjustment level

3. High voltage 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 SIM 8-3. (The main charger output is supplied for 30 sec

in the grid voltage LOW output mode.) Adjust the control volume (VRG2) so that the output voltage is

– 390 ±20V.

5) Execute SIM 8-2. (The main charger output is supplied for 30 sec

in the grid voltage HIGH output mode.)

6) Adjust the control volume (VRG1) so that the output voltage is 580

±12V.

VRG1

VRG2

Slightly copied.

Not copied.

Toner save mode

1 10

23456789

Slightly copied.

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.

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 SIM 8-1 to output the developing bias for 30sec, and check that the output is – 400±8V.

VRDV

AL-1551CS ADJUSTMENTS 9 - 5

Page 77

4. Duplex adjustment

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

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)

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(AE) 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 (TEXT) 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.

3) Execute simulation 50-18 to make a copy and check the front edge image loss at the area where the scale is printed. 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.

Front edge of paper

The front edge of the scale on test chart

less than 4 mm

510

Void area

(Adjustment procedure)

(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)

2) Set the test chart on the document glass as shown below.

Document guide

The trailing edge has a scale

Table glass

3) Using the user simulation [18], set the paper size of the first cassette.

• Letter paper: 4

• A4 paper: 3

AL-1551CS ADJUSTMENTS 9 - 6

Page 78

4) Execute simulation 50-19 to turn on the TEXT 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 simulation 50-19 to turn on the AE 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-1551CS ADJUSTMENTS 9 - 7

Page 79

[10] SIMULATION, TROUBLE CODES

1. Entering the simulation mode

To enter the serviceman simulation mode, press the keys as follows: Clear → Density select → Clear→ Density select To cancel the simulation mode, press the clear key. Flow chart of entering the simulation mode

The current set adjustment value and the counter value are displayed on the COPY QUANTITY displayed Sensor check, etc. are displayed by the

alarm lamps, etc.

To change the current set values, enter with the COPY QUANTITY key.

10th digit:

1st digit:

Count up of values: COPY QUANTITY key

Count down of values: Zoom key + COPY QUANTITY key

The entered value is displayed on the COPY QUANTITY display.

Press the COPY key.

Is there a sub code ?

Press the COPY key.

Is it the

simulation for

operation

check?

YES

Perform the operation according to the simulation number.

Is another

simulation to be

performed ?

Press the clear key.

All displays on the operation panel go off, and the machine enters the ready state for entering the main code.

YES

Press the COPY key.

The COPY QUANTITY display blinks to indicate "00" and the machine

enters the ready state for sub code input.

Enter the sub code with the COPY QUANTITY key.

10th digit

1st digit: Count up of values:

COPY QUANTITY key Count down of values: Zoom key + COPY QUANTITY key

Press the COPY key.

Is the main code the same ?

Is the sub code displayed ?

YES

Press the clear key.

The COPY QUANTITY display blinks to indicate the previously set sub enters the ready 7 state for sub code input. code, and the machine

YES

Press the clear key.

Enter the new main code.

The main code is displayed on the COPY QUANTITY display.

Start

Press the clear key.

Within 1sec

Press the exposure mode selector key.

Within 1sec

Press the clear key.

Within 1sec

Press the exposure mode selector key.

All displays on the operation panel go off,

and the machine enters he ready state for entering he main code.

Enter the main code with the COPY QUANTITY key.

10th digit:

1st digit:

Count up of values: COPY QUANTITY key Count down of values: Zoom key + COPY QUANTITY key

The main code is displayed on the COPY QUANTITY display.

The entered value is registered.

Press the clear key.

End

AL-1551CS SIMULATION, TROUBLE CODES 10 - 1

Page 80

2. List of simulations

Sim No.

01 Optical system 01 Mirror scan operation

02 SPF Individual

05 Lamp ON

06 Machine

07 Aging 01 Warm-up display and aging with jam

08 High voltage

10 Other None Toner motor aging 14 Trouble reset None Cancel of troubles other than U2 16 U2 trouble

22 Counter

24 Special

25 Main motor

Kind of

main code

load operation

check

individual load operation

output check

reset

display

counter clear

Sub

code

06 Aging of mirror scanning 02 SPF sensor status display 03 Motor ON 04 Paper feed solenoid ON 05 Pressure release solenoid ON

(RSPF) 06 Resist clutch ON (RSPF) 07 Gate solenoid ON (RSPF) 01 Operation panel display check 02 Fusing lamp, cooling fan operation

check 03 Copy lamp ON 01 Paper feed solenoid ON 02 Resist solenoid ON

06 Intermittent aging 01 Developing bias 02 Main charger (Grid high) 03 Grid voltage (Low) 06 Transfer charger

None Cancel of U2 trouble

04 JAM total counter display 05 Total counter display 08 SPF counter display 12 Drum counter display 14 P-ROM version display 17 Copy counter display 18 Printer counter display 19 Scanner mode counter display 21 Scanner counter display 22 SPF JAM counter display 01 JAM total counter clear 04 SPF counter clear 07 Drum counter clear 08 Copy counter clear 09 Printer counter clear 13 Scanner counter clear 14 SPF JAM total counter clear 15 Scanner mode counter clear 01 Main motor operation check (Cooling

fan motor rotation check) 10 Polygon motor ON

Operation

Sim

No.

26 Various setup 01 Manual feed setup

30 Sensor

43 Fusing

46 Exposure

48 Magnification

49 01 Flash ROM program writing mode 50 Lead edge

51 Timing

53 08 SPF scan position automatic

61 Laser system

63 Shading 01 Shading check 64 Self print 01 Self print

Kind of

main code

operation check (Standard provision)

temperature setup

adjustment

ratio correction

adjustment

operation

Sub

code

02 (R) SPF setup 03 Second cassette setup 04 Machine duplex setup 06 Destination setup 07 Machine conditions check 20 Rear edge void setup 30 CE mark support control ON/OFF 38 Cancel of stop at drum life over 39 Memory capacity check 40 Polygon motor OFF time setup

(Time required for turning OFF after

completion of printing) 42 Transfer ON timing control setup 43 Side void setup 44 SPF document rear edge read setup 62 Energy-save mode copy lamp setup 63 Fan control select setup 01 Paper sensor status display

01 Fusing temperature setup (Normal

copy) 04 Fusing temperature setup 2 05 Fusing temperature setup in duplex

copy 09 Setup of fusing control of postcard

size paper 01 Copy density adjustment (300dpi) 02 Copy density adjustment (600dpi) 18 Image contrast adjustment (300dpi) 19 γ table setup or AE operation mode

setup 20 SPF exposure correction 29 Image contrast adjustment (600dpi) 31 Image sharpness adjustment 32 Copier color reproduction setup 01 Front/rear (main scanning) direction

and scan (sub scanning) direction

magnification ratio adjustment

01 Lead edge image position 10 Center offset adjustment 18 Memory reverse position adjustment

in duplex copy 19 Duplex copy rear edge void

adjustment 02 Resist quantity adjustment

adjustment 03 Polygon motor check

(HSYNC output check)

Operation

AL-1551CS SIMULATION, TROUBLE CODES 10 - 2

Page 81

3. Contents of simulations

Input method: Clear key → Exposure Select key → Clear key → Exposure Select key

Main

Sub

code

01 01 Mirror scan operation

(Operation/Procedure)

1. When this simulation is executed, the mirror home position is detected.

Sensor name Display lamp

Mirror home position sensor OPC drum cartridge replacement lamp

2. When the _START key is pressed, scanning is executed at the speed corresponding to the currently set copy magnification ratio. The copy magnification ratio can be arbitrarily set with the magnification ratio select key/zoom key.

06 Aging of mirror scanning

When the PRINT switch is pressed, the mirror base performs full scan at the speed of the set magnification ratio. After 3 sec, the mirror case performs full scan again. These procedures are repeated until the clear key is pressed. (When the PRINT switch is pressed once, the ready lamp keeps OFF.) The status of the mirror home position sensor is displayed with the photoconductor cartridge lamp. (The lamp is ON when the mirror is at the home position.) During aging, the copy lamp keeps ON.

02 02 SPF sensor status display

05 01 Operation panel display check

ON/OFF of the sensors in the SPF can be checked with the following lamps.

Developer cartridge replacement lamp Document set detection (SPID) Jam lamp SPF document transport detection (SPPD) Photoconductor cartridge replacement lamp SPF cover open/close detection (SDOD) SPF jam lamp SPF open/close detection (SDSW)

03 Motor ON

(Operation/Procedure) When the start key is pressed, the SPF motor rotates for 10 sec at the speed corresponding to the currently set magnification ratio.

04 Paper feed solenoid ON

(Operation/Procedure) When the start key is pressed, the SPF paper feed solenoid repeats ON (500 ms) and OFF (500 ms) 20 times.

05 Pressure release solenoid ON (RSPF)

(Operation/Procedure) When the start key is pressed, the RSPF document transport solenoid (SPFS) repeats ON (500 ms) and OFF (500 ms) 20 times.

06 Resist clutch ON (RSPF)

(Operation/Procedure) When the start key is pressed, the RSPF resist clutch (SRRC) repeats ON (500 ms) and OFF (500 ms) 20 times.

07 Gate solenoid ON (RSPF)

(Operation/Procedure) When the start key is pressed, the RSPF gate solenoid (SGS) repeats ON (500 ms) and OFF (500 ms) 20 times.

• When the PRINT switch is pressed, all LEDs (including 7-segment LEDs) on the operation panel are lighted. (LED check mode)

• When 1Up key is pressed, the LEDs on the operation panel are lighted individually from the top left to the bottom right in sequence.

After completion of all individual lighting, all LEDs are lighted simultaneously. (The 7-segment LED lights the three-digit sections at the same time.) Individual lighting frequency ON: 300ms, OFF: 20ms

• When the CLEAR key is pressed, this simulation is terminated.

• When the PRINT switch is pressed in the LED check mode, the machine enters the Key input check mode.

“Key input check mode” When the machine enters the Key input check mode, the value display section indicates “– – –.” Every time any key on the operatiion panel is pressed, the entered value is added and displayed on the value display section. However, the keys that were pressed once are not counted again.

• When the PRINT switch is pressed, the entered value is added and displayed for 3 sec and all the LEDs are lighted. (LED lighting

check mode)

(Note for Key input check mode)

• Press the PRINT switch at the end. (If it is pressed in the middle of the process, the entered value up to that moment is displayed for

3 sec and the machine enters the LED lighting check mode. (ALL the LEDs are lighted.))

• Multiple key inputs are ignored.

02 Fusing lamp, cooling fan operation check

When the PRINT switch is pressed, the fusing lamp repeats operations of 500ms-ON and 500ms-OFF 5 times. During that time, the cooling fan motor rotates.

Display Sensor

Content

FAX document size detection Paper size detection

AL-1551CS SIMULATION, TROUBLE CODES 10 - 3

Page 82

Main

Sub

code

05 03 Copy lamp ON

(Operation/Procedure) When the START key is pressed, the copy lamp is lighted for 5 sec.

06 01 Paper feed solenoid ON

(Operation/Procedure) When the START key is pressed, the paper feed solenoid selected by the tray select key repeats ON (500ms) and OFF (500ms) 20 times.

02 Resist solenoid ON

(Operation/Procedure) When the START key is pressed, the resist solenoid (RRS) repeats ON (500ms) and OFF (500ms) 20 times.

07 01 Warm-up display and aging with jam

(Operation/Procedure)

1. When the simulation is executed, warming up is started.

2. Warm-up time is counted and displayed every second on the copy quantity display.

3. After completion of warm-up, the time count is stopped and the ready lamp is lighted.

4. Press the clear key to clear the warm-up time display, set the copy quantity, and press the START key, and the machine will copy the set quantity repeatedly.

This simulation is canceled by turning off the power or executing any simulation which performs hardware reset.

06 Intermittent aging

(Operation/Procedure)

1. When the simulation is executed, warming up is started.

2. After completion of warm-up, the ready lamp is lighted.

3. Set the copy quantity and press the START key, and the machine will copy the set quantity repeatedly.

4. After 3 sec of the interval time from completion of copying the set quantity, the machine will resume copying.

5. The above operation 4 is repeated.

This simulation is canceled by turning off the power or executing any simulation which performs hardware reset.

08 01 Developing bias

(Operation/Procedure) When the START key is pressed, the developing bias is outputted for 30 sec.

02 Main charger (Grid high)

(Operation/Procedure) When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage HIGH mode.

03 Grid voltage (Low)

(Operation/Procedure) When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage LOW mode.

06 Transfer charger

(Operation/Procedure) When the START key is pressed, the transfer charger output is supplied for 30 sec.

10 None Toner motor aging

(Operation/Procedure) When the START key is pressed, the toner motor output is supplied for 30 sec.

14 None Cancel of troubles other than U2

(Operation/Procedure) After canceling the trouble, the simulation is also automatically canceled.

16 None Cancel of U2 trouble

(Operation/Procedure)

1. When the START key is pressed, the EEPROM total counter check sum is rewritten and the trouble is canceled.

2. After canceling the trouble, the simulation is also automatically canceled.

22 04 JAM total counter display

The display method is the same as the total count value display.

05 Total counter display

The total count value is displayed in 3 digits X 2 times repeatedly. <Display example: 12345>

Content

012 → Blank → 345 → Blank → 012

0.7s 0.3s 0.7s 1.0s 0.7s

08 SPF counter display

The display method is the same as the total count value display.

12 Drum counter display

The display method is the same as the total count value display.

14 P-ROM version display

The main code and the sub code of the P-ROM version is displayed on the value display section in 2 digits alternately. The display method is the same as the total count value display.

17 Copy counter display

The display method is the same as the total count value display.

AL-1551CS SIMULATION, TROUBLE CODES 10 - 4

Page 83

Main

Sub

code

22 18 Printer counter display

The display method is the same as the total count value display.

19 Scanner mode counter display

The display method is the same as the total count value display.

21 Scanner counter display

The display method is the same as the total count value display.

22 SPF JAM counter display

The display method is the same as the total count value display.

24 01 JAM total counter clear

When the PRINT switch is pressed, the JAM total count value is reset to 0.

04 SPF counter clear

When the PRINT switch is pressed, the SPF count value is reset to 0.

07 Drum counter clear

When the PRINT switch is pressed, the drum count value is reset to 0.

08 Copy counter clear

When the PRINT switch is pressed, the copy count value is reset to 0.

09 Printer counter clear

When the PRINT switch is pressed, the printer count value is reset to 0.

13 Scanner counter clear

When the PRINT switch is pressed, the scanner count value is reset to 0.

14 SPF JAM total counter clear

When the PRINT switch is pressed, the SPF JAM total count value is reset to 0.

15 Scanner mode counter clear

When the PRINT switch is pressed, the scanner mode counter is reset to 0.

25 01 Main motor operation check (Cooling fan motor rotation check)

When the PRINT switch is pressed, the main motor (as well as the duplex motor in the duplex model) is operated for 30 sec. If the developing unit is installed at that time, the developing bias, the main charger, and the grid are outputted together in order to avoid toner consumption. Since, in this case, laser discharge is required when stopping the motor, the polygon motor is rotated at the same time. If the developing unit is not installed, the above high voltage is not outputted and only the motor is rotated.

: Do not execute this simulation by forcibly turning ON the door ON/OFF switch.

10 Polygon motor ON

(Operation/Procedure) When the START key is pressed, the polygon motor is operated for 30 sec.

26 01 Manual feed setup

(Operation/Procedure)

1. When this simulation is executed, the currently set bypass code number is displayed.

2. Enter the code number corresponding to the bypass and press the START key, and the setting will be changed.

Content

Code number Bypass

0 Single bypass 1 Multi bypass

02 (R) SPF setup

When this simulation is executed, the current setup of the SPF code number is displayed. Enter the code number corresponding to the SPF and press the PRINT switch to enable the setup.

Code number SPF

0 SPF not installed 1 SPF installed 2 RSPF installed

03 Second cassette setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number of the second cassette is displayed.

2. Enter the code number and press the start key. The setting is changed.

Code number Second cassette

0 Without second cassette 1 With second cassette

04 Machine duplex setup

(Operation/Procedure)

1. When this simulation is executed, the currently set duplex code number is displayed.

2. Enter the code number corresponding to the duplex and press the ENTER key, and the setup will be changed.

Code number Duplex

0 Without Duplex 1 With Duplex

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26 06 Destination setup

When this simulation is executed, the current setup of the destination code number is displayed. Enter the code number corresponding to the destination and press the PRINT switch to enable the setup.

Code number Destination

0 Inch series 1 EX JAPAN AB series 2 JAPAN AB series 3 China (EX JAPAN AB series + Chinese paper support)

07 Machine conditions check

When this simulation is executed, the current machine setup is displayed.

CPM Copy quantity display 10 cpm 10 12 cpm 12 13 cpm 13 14 cpm 14 15 cpm 15

20 Rear edge void setup

When this simulation is executed, the current setup of the rear edge void code number is displayed. Enter the code number corresponding to the rear edge void and press the PRINT switch to enable the setup.

Code number Rear edge void setup

0 Rear edge void provided * Default 1 Rear edge void not provided

Content

30 CE mark support control ON/OFF

When this simulation is executed, the current setup of the CE mark support code number is displayed. Enter the code number corresponding to the CE mark support setup and press the PRINT switch to enable the setup.

Code number CE mark support setup

0 CE mark support control OFF * Default (100V series) 1 CE mark support control ON

The default for CE-support 200V series is “1.”

38 Cancel of stop at drum life over

When this simulation is executed, the current setup of the code number is displayed. Enter the code number and press the PRINT switch to enable the setup.

Code number Setup

0 Stop at drum life over * Default (AL model) 1 Cancel of stop at drum life over

39 Memory capacity check

When this simulation is executed, the current memory capacity is displayed.

Code number Setup

88 Mbyte

16 16 Mbyte

40 Polygon motor OFF time setup (Time required for turning OFF after completion of printing)

When this simulation is executed, the current setup of the code number is displayed. Enter the code number and press the PRINT switch to enable the setup.

Code number Setup

0 0 sec 1 30 sec * Default 2 60 sec 3 90 sec

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26 42 Transfer ON timing control setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed. (For any number different from the following ones, the default time is automatically set.)

Code number Setting

0 Default (330 msec) 1 – 40 msec 2 – 30 msec 3 – 20 msec 4 – 10 msec 5 Default (330 msec) 6 +10 msec 7 +20 msec 8 +30 msec 9 +40 msec

43 Side void setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number of the side void amount is displayed.

2. Enter the code number and press the start key. The setting is changed.

Code number Setting

00 mm 1 0.5 mm 2 1.0 mm 3 1.5 mm 4 2.0 mm * Default 5 2.5 mm 6 3.0 mm 7 3.5 mm 8 4.0 mm 9 4.5 mm

10 5.0 mm

Content

44 SPF document rear edge read setup + Fax document rear edge scan setup.

When this simulation is executed, the currently set code number is displayed. Enter the desired code number and press the START key, and the display will be changed. The document rear edge scanning area in SPF reduction (less than 100%) copy is changed. The code number is changeable in the range of 0 – 8. The default value is 4, and 2 mm of the document rear edge is cut. When the value is changed by 1, the area is changed by 1 mm.

62 Energy-save mode copy lamp setup

Used to set half-ON (50%)/OFF of the copy lamp in the pre-heat mode. When this simulation is executed, the current setup of the code number is displayed. Enter the code number and press the PRINT switch to enable the setup.

Code number Setup

0 Copy lamp half-ON (50%) * Default 1 Copy lamp OFF

63 Fan control select setup

Used to set the cooling fan operation mode. When this simulation is executed, the current setup of the code number is displayed. Enter the code number and press the PRINT switch to enable the setup.

Code number Setup

1 1-speed fan control 2 2-speed fan control * Default when starting mass production

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30 01 Paper sensor status display

Indicates the paper sensor status using the lamps on the operation panel.

Sensor name Display lamp Before-resist paper sensor (PPD1) Developer cartridge replacement lamp Fusing section paper sensor (PPD2) JAM lamp Paper exit sensor (POD) Photoconductor cartridge replacement lamp 2nd CS paper sensor (PPD3) 2nd cassette lamp New drum cartridge sensor (PUIS) Zoom lamp Single manual feed paper sensor (MFD) AE lamp

Content

43 01 Fusing temperature setup (Normal copy)

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Set temperature (° C)

0175 1180 2185 3190 4 195 (* Default) 5200

04 Fusing temperature setup 2

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Set temperature (° C)

0155 1160 2165 3 170 (* Default) 4175 5180

05 Fusing temperature setup in duplex copy

In duplex copy, this setup value is added to the fusing temperature of single copy. When this simulation is executed, the current setup of the code number is displayed. Enter the code number and press the PRINT switch to enable the setup.

Code number Temperature shift (°C)

0±0°C * Default 1 – 8° C 2 – 6° C 3 – 4° C 4 – 2° C 5±0°C 6+2°C 7+4°C 8+6°C 9+8°C

09 Setup of fusing control of postcard size paper

Code number Setup

0 Cancel * Default 1 Setup

The default for Japan model is “1.”

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46 01 Copy density adjustment (300dpi)

Used to set the copy density in each mode. (Operating procedure) When this simulation is executed, warm-up and shading operations are performed and the current setup is displayed in two digits (default: 50). Change the setup value with the copy quantity keys. Press the PRINT switch and a copy is made according to the new setup. The greater the setup value is, the darker the copy is. The smaller the setup value is, the brighter the copy is. Only EXP.3 copy is made in this simulation. When set to a darker level, Exp.1 and Exp.5 copies also become darker. When set to a brighter level, Exp.1 and Exp.5 copies also become brighter. Press the CLEAR key to save the setup and exit from the simulation mode. Use the copy mode select key to select a copy mode . The setup value of the selected copy mode is displayed on the copy quantity display. (adjustment range: 0 – 99)

Copy mode Display lamp AE mode (300dpi) AE mode lamp TEXT mode (300dpi) TEXT mode lamp PHOTO mode PHOTO mode lamp TS mode (TEXT) (300dpi) TEXT mode lamp & PHOTO mode lamp TS mode (AE) (300dpi) AE mode lamp & PHOTO mode lamp

02 Copy density adjustment (600dpi)

Used to set the copy density in each mode. (Operation/Procedure) When this simulation is executed, the machine performs warm-up and shading, and the current setup value is displayed in two digits. (Default: 50) Use the copy quantity key to change the setup value, and press the PRINT switch to make a copy with the new setup. The greater the setup value is, the darker the copy is, and vise versa. Only EXP.3 copy is made. If it is set to a darker density, EXP.1 and EXP.5 copies also become darker. If it is set to a brighter density, they also become brighter. When the CLEAR key is pressed, the entered setup value is saved and the simulation is terminated. Any copy mode can be selected with the copy mode select key. The setup value of the selected copy mode is displayed on the copy quantity display. (Setup range: 0 – 99)

Content

Copy mode Display lamp AE mode (600dpi) AE mode lamp TEXT mode (600dpi) TEXT mode lamp PHOTO mode PHOTO mode lamp TS mode (TEXT) (600dpi) TEXT mode lamp & PHOTO mode lamp TS mode (AE) (600dpi) AE mode lamp & PHOTO mode lamp

18 Image contrast adjustment (300dpi)

Used to set the image contrast in each mode. (Operating procedure) When this simulation is executed, warm-up and shading operations are performed and the current setup value is displayed in two digits. (Default: 50) Change the setup value with the copy quantity keys. Press the PRINT switch and a copy is made according to the new setup. The greater the setup value is, the higher the contrast is. The smaller the setup value is, the lower the contrast is. Though only EXP.3 copy is made in this simulation, the contrast levels in EXP.1 and EXP.5 are also changed. Press the CLEAR key to save the setup and exit from the simulation mode. Use the copy mode select key to select a copy mode . The setup value of the selected copy mode is displayed on the copy quantity display. (adjustment range: 0 – 99)

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46 19 γ table setup or AE operation mode setup

When this simulation is executed, the current setup of the gamma table code number is displayed. (Default: Japan = 1, EX Japan = 2) Enter the code number corresponding to desired gamma table, and press the PRINT switch or the copy mode select key to enable the setup.

Code number γ table

1 Image quality priority mode 2 Toner consumption priority mode

When the copy mode select key is pressed during setup of the gamma table, the mode is switched to the AE operation setup mode and the current setup of the AE operation mode code number is displayed. (Default: 0) Enter the code number corresponding to your desired AE operation mode, and press the PRINT switch or the copy mode select key to switch the setup. (When the copy mode select key is pressed, the mode is returned to the gamma table setup mode.)

Code number AE operation mode

0 Fixed process * Default 1 Real time process

20 SPF exposure correction

Used to adjust the exposure correction quantity in the SPF mode by adjusting the differential of Vref voltage for the OC mode. (Operating procedure) When this simulation is executed, the current setup is displayed. Enter the adjustment value with the 10-key and press the PRINT key to enable the setup and make a copy. When the CLEAR key is pressed, the entered value is saved and the simulation mode is terminated. ∗ The greater the value is the darker the exposure is.

The smaller the value is, the brighter the exposure is.

29 Image contrast adjustment (600dpi)

Used to set the contrast in each mode. (Operation/Procedure) When this simulation is executed, the machine performs warm-up and shading, and the current setup value is displayed in two digits. (Default: 50) Use the copy quantity keys to change the setup value, and press the PRINT switch to make a copy with the new setup. The greater the setup value is, the greater the contrast is, and vise versa. Only EXP.3 copy is made, however, EXP.1 contrast and EXP.5 contrast are also changed accordingly. When the CLEAR key is pressed, the entered setup value is saved and the simulation is terminated. Any copy mode can be selected with the copy mode select key. The setup value of the selected copy mode is displayed on the copy quantity display. (Setup range: 0 – 99)

Content

31 Image sharpness adjustment

Used to adjust the clear/shading-off of an image in each mode. (Operating procedure) When this simulation is executed, warm-up and shading operations are performed and the current setup value is displayed. (Default: 1) Change the setup value with the copy quantity keys. Press the PRINT switch and a copy is made according to the new setup. When the clear key is pressed, the entered setup value is saved and the simulation is terminated.

Setup value Image quality

0 Shading off 1 Standard * Default 2 Clear

Any desired copy mode can be selected with the copy mode select key. The code number of the selected copy mode is displayed on the copy quantity display.

Copy mode Display lamp AE mode AE mode lamp TEXT mode TEXT mode lamp PHOTO mode PHOTO mode lamp TS mode (TEXT) TEXT mode lamp & PHOTO mode lamp TS mode (AE) AE mode lamp & PHOTO mode lamp

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46 32 Copier color reproduction setup

Used to set color reproduction for each mode. Colors which are easily copied or which are not easily copied are selected.

Setup value Easy-to-copy colors Difficult-to-copy colors

0 Purple/Blue/Red Yellow/Green/Light blue 1 Light blue/Green/Blue Purple/Red/Yellow 2 Yellow/Red/Green Blue/Light blue/Purple

∗ This setup does not affect black-and-white copies.

(Operating procedure) When this simulation is executed, the current setup of the code number for each copy mode is displayed. (Default: 0) Change the setup value with the copy quantity keys and press the Print switch. A copy will be made according to the setup. At that time, the color component used for copying is changed. When the clear key is pressed, the entered code number is saved and the simulation mode is terminated. Any desired copy mode can be selected with the copy mode select key. The selected copy mode is displayed on the copy quantity display.

Code number Component of use

0 Green * Default 1Red 2Blue

Copy mode Display lamp AE mode (including TS) AE mode lamp TEXT mode (including TS) TEXT mode lamp PHOTO mode PHOTO mode lamp

Content

48 01 Front/rear (main scanning) direction and scan (sub scanning) direction magnification ratio adjustment

(1) Front/rear direction magnification ratio auto correction: The width of the reference line marked on the shading correction plate is

scanned to perform automatic correction of the front/rear (main scanning) direction magnification ratio as well as automatic setup of the OC/document center offset value and of the image scan start position. The OC/document center offset value and the image scan start position automatically set in this simulation, can be checked by the respective manual setup simulation for each adjustment shown below.

OC/document center offset → Sim50-10 Center offset adjustment Image scan start position → Sim50-01 Lead edge image position

(2) Front/rear direction magnification ratio manual correction: By key operations, the front/rear (main scanning) direction magnification

ratio is set by changing the setup value of the ZOOM DATA register to AISC.

(3) Scan direction magnification ratio correction: The scan direction magnification ratio in the OC mode is set by changing the scan

speed.

(4) SPF mode scan direction magnification ratio correction: The SPF mode scan direction magnification ratio is set by changing the

scan speed. (Operating procedure) When this simulation is executed, the current setup value is displayed in two digits. (Center value: 50) Press the copy mode select key to select each setup mode and the setup display will change accordingly. In the case of the front/rear direction automatic adjustment, when the PRINT switch is pressed, the mirror base unit moves to the shading white board, and the width of the reference line is scanned, and the correction value is calculated, and the value is saved. For manual adjustment, enter the adjustment value with the 10-key and press the PRINT switch, the set value will be saved and a copy will be made. When the clear key is pressed, the value entered will be saved and the simulation will be terminated. (Increasing the setup value by 1 increases 0.1%.)

Adjustment mode Lamp ON Front/rear direction magnification ratio automatic correction AE lamp Front/rear direction magnification ratio manual correction TEXT lamp Scan direction magnification ratio correction PHOTO lamp SPF mode scan direction magnification ratio correction AE, TEXT, PHOTO lamps

In the front/rear direction magnification ratio automatic correction (1) When the calculated value of the scan correction value is within ±5%, “– –” is displayed.

(Cause) Erroneous position of the reference line on the white board, improper installation of the lens unit, etc.

(2) In case of a scan error of the reference line, the jam lamp lights up.

(Cause) CCD error, no white board installed.

If the automatic correction of the magnification ratio cannot provide a satisfactory result, use the manual correction.

∗

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49 01 Flash ROM program writing mode

(Operating procedure) When this simulation is executed, “d” is displayed on the display and the machine enters the Flash ROM program writing mode. Use the writing tool to write the program from PC. During writing, the display indicates as shown below. After completion of downloading, turn OFF/ON the power to reset.

Status Display Pre-heat lamp Ready lamp Download data reception “d” ON ON OFF Data erase start “d” ON OFF ON Data writing (Boot section) “d” ON Blink OFF Data writing (program section) “d” ON Blink Blink Sum check “d” ON ON ON Download complete “0FF” ON OFF OFF Error state “E *” ON OFF OFF

∗ “*” in an error display indicates the error position.

1 Data reception error 2 Loader function transfer 3 FLASH ROM delete 4 FLASH ROM writing (Boot section) 5 FLASH ROM writing (Program section) 6 Sum check (Loader section) 7 Sum check (Boot section) 8 Sum check (Program section)

50 01 Lead edge image position

Used to adjust the copy image position and the lead edge void quantity on the copy paper. The adjustment is made by adjusting the image scan start position and the print start position (resist roller ON timing) at 100%. (Operating procedure) When this simulation is executed, the current setup value is displayed the current setup value is displayed in two digits. (Center value:

50) Press the copy mode select key to select your desired coy mode, and the display will change. Enter the adjustment value with the 10-key and press the PRINT switch, and the setup value will be saved and a copy will be made. Press the clear key to save the setup value and exit from the simulation mode. When the adjustment is made for the main cassette feed, all the adjustment values at all the paper feed ports become the same. (Increasing the setup value by 1 corresponds to about 0.1mm shift.)

Content

Adjustment mode Lamp ON Print start position (Main cassette paper feed) AE, main cassette lamp Print start position (2nd cassette paper feed) AE, 2nd cassette lamp Print start position (Manual paper feed) AE, manual feed lamp Image lead edge void quantity TEXT lamp Image scan start position PHOTO lamp Image rear edge void quantity AE, TEXT, PHOTO lamp SPF image scan start position AE, TEXT lamp

: Supported if the model is installed and skipped if it is not installed.

(Adjustment procedure)

AE ON TEXT ON PHOTO ON

↓↓↓

1. Set the print start position (A), the lead edge void quantity (B) and the scan start position (C) to 0, and make a copy at 100%.

2. Measure the image loss quantity (R mm) of the scale.

Set C = 10 × R (mm) (Example: Set 40.) When the value C is increased by 10, the image loss is decreased by 1mm. (Default: 50)

3. Measure the distance (H mm) from the paper lead edge to the image print start position. Set A = 10 × H (mm) (Example: set 50) When the value A is increased by 1mm, the image lead edge is shifted to

(Example)

Distance from the paper lead edge to the image lead edge: H = 5mm

Image loss: R = 4mm

5mm

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

4. Set the lead edge void quantity to B = 50 (2.5mm). (Default: 50) When the value B is increased by 10, the void is increased by about 1mm.

10mm

(When set to 25 or less, the void becomes zero.)

The SPF adjustment is performed by adjusting the SPF image scan start position.

∗

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50 10 Center offset adjustment

Used to adjust the copy image position on the copy paper and the center offset position when scanning a document. (Operating procedure) When this simulation is executed, the current setup value is displayed. Enter the adjustment value with the 10-key and press the PRINT switch, and the entered value will be saved and a copy will be made. When the clear key is pressed, the entered value will be saved and the simulation will be terminated. (When the setup value is increased by 1, shift is increased by 0.1mm.)

Adjustment mode Lamp ON Print center offset (Main cassette paper feed) AE, main cassette lamp Print center offset (2nd cassette paper feed) AE, 2nd cassette lamp Print center offset (Manual paper feed) AE, manual paper feed lamp OC/document center offset AE, TEXT lamp SPF/RSPF (front) document center offset AE, TEXT, PHOTO lamp

: Supported only for installing models, and skipped for not-installing models.

∗ When the setup value is too great, outside of the shading area may be read, and black streaks may be produced on the edges.

When the adjustment value is increased, the image is shifted to the left. When the adjustment value is decreased, the image is shifted to the right.

18 Memory reverse position adjustment in duplex copy

When this simulation is executed, the current setup value of correction is displayed. Enter the correction value with the 10-key and press the PRINT switch, and the entered value will be saved. (Correction value 1 – 99, correction zero = 0, or 50) When the correction value is set to 0, the correction value is written as 50. Front surface printing in the S-D mode and printing on even pages in the D-S mode are reverse memory copy operations from the document rear edge section. When, therefore, the output image print position adjustment is required, adjust as follows: In the reverse memory copy operation, if the document scan direction is in the direction of the arrow in the figure, the scan rear edge section of the image is printed first. When, therefore, the print lead edge is shifted, set the reference chart so that the reference position is in the rear edge section, and use this simulation to adjust so that the print image lead edge comes to the lead edge. Since printing is performed by processing the scanned image from the scan end position to the scan lead edge, the print lead edge position adjustment is performed by changing the end data position stored in memory with the simulation setup value.

Document transport direction

Scan lead edge

Content

Paper transport direction

Print lead edge Lead edge void (1) Print start position

Scan end position (Default: Scan cut by void (1))

Scan rear edge

Rear edge void Print rear edge

Scan direction

19 Duplex copy rear edge void adjustment

Used to adjust the rear edge void quantity in duplex copy. (Operating procedure) When this simulation is executed, the current setup value is displayed the current setup value is displayed in two digits. (Center value: 50 However, setup 50 = setup 0) When the correction value is set to 0, the correction value is written as 50. Press the copy mode select key to select your desired copy mode, and the display will change. Enter the adjustment value with the 10-key and press the PRINT switch, and the setup value will be saved and a copy will be made. (The paper information is cleared for every copying.) Press the clear key to save the setup value and exit from the simulation mode. (Increasing the setup value by 1 increases the void quantity by about

0.1mm.)

Adjustment mode Lamp ON Image cut rear edge void quantity (RSPF) AE lamp Paper rear edge void quantity TEXT lamp Print start position (Duplex back) PHOTO lamp RSPF (Back) original center offset AE, TEXT, PHOTO lamps

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51 02 Resist quantity adjustment

Used to adjust the contact pressure of paper against the machine resist roller and the RSPF resist roller. (Operating procedure) When this simulation is executed, the current setup value is displayed. Enter the adjustment value with the 10-key and press the PRINT switch, the entered set value will be saved and a copy will be made. When the clear key is pressed, the entered value will be saved and the machine will exit from the simulation mode.

Adjustment mode Lamp ON Main cassette paper feed AE, main cassette lamp 2nd cassette paper feed AE, 2nd cassette lamp Manual paper feed AE, manual paper feed lamp RSPF document feed (front) AE, TEXT, PHOTO lamp RSPF document feed (back) AE, TEXT lamp duplex back TEXT, PHOTO lamp

: Supported only for installing models, and skipped for not-installing models.

53 08 SPF scan position automatic adjustment

Place a black chart so that it covers the SPF scan glass and the OC glass, and execute the simulation with the OC cover open, the mirror unit scans from the home position to the SPF scan position to identify the SPF glass cover edge position by the difference in the CCD output levels of the SPF glass cover edge and the OC side document glass. Default is 50. Adjustment range is 0 – 99. Adjustment increment: 1 = about 0.127mm If this adjustment is performed properly, the adjustment value is displayed. If it is abnormal, the jam lamp lights up. If the adjustment is not made properly, “– –” is displayed.

61 03 Polygon motor check (HSYNC output check)

(Operation/Procedure) When the START key is pressed, HSYNC is performed and the polygon motor is rotated for 30 sec. At that time, the Zoom lamp is lit for 100msec for every 3 times that the HSYNC is detected.

63 01 Shading check

Used to display the detection level of the white board for shading. (Operating procedure) When the PRINT switch is pressed, the mirror base unit moves to the white board for shading to light the copy lamp. Under this state, the level of one pixel at the CCD center which is not corrected for 10sec in 1 sec, and the result is displayed on the value display section.

64 01 Self print

Print of one page is made regardless of the status of the optical system. (Operating procedure) When this simulation is executed, warm-up is performed and the ready lamp is lighted. Enter the code number with the 10-key, and select the cassette with the cassette select key and press the PRINT switch, and paper feed operation will be made from the selected cassette and printing of the selected pattern will be made. Printing is in 1by2 mode, or grid pattern.

Content

Code number Pattern

0 1by2 1 Grid pattern

∗ 2 – 99: print in 1by2.

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4. Trouble codes

A. Trouble codes list

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E7 01 Duplex model memory

02 HSYNC not detected. LSU (laser diode, reception element, APC circuit) trouble

10 CCD black level trouble CCD drive circuit (CCD PWB, ASIC, harness) trouble 11 CCD white level trouble CCD drive circuit (CCD PWB, ASIC harness) trouble

12 Shading trouble

16 Laser output trouble LSU (laser diode, reception element, APC circuit) trouble

F5 02 Copy lamp disconnection

H2 00 Thermistor open detection The fusing thermistor is open. H3 00 Heat roller abnormally high

H4 00 Heat roller abnormally low

L1 00 Feeding is not completed

L3 00 Return is not completed

L4 01 Main motor lock When the main motor encoder pulse is not detected for 100 msec. L6 10 Polygon motor lock The lock signal (specified rpm signal) does not return within a certain time (about 20 sec) from starting the

U2 01 Counter sum check error When the counter check sum value stored in the EEPROM is abnormal.

04 EEPROM serial

Trouble content Detail of trouble

setup error, memory no error detected

(White correction)

trouble

temperature

within the specified time after starting feeding. (The scan head locking switch is locked)

within the specified time.

communication error

The memory is not set properly or the memory capacity is not set to the duplex setup (6M). Cancel method: Set SIM 26-39 code number to 2.

LSU drive circuit (ASIC) trouble

Copy lamp lighting trouble (Copy lamp, inverter PWB) Dirt on white plate for scanning white level

LSU drive circuit (ASIC) trouble Copy lamp or copy lamp drive circuit (inverter PWB) trouble

Copy lamp disconnection

The fusing temperature rises above 240° C.

The fusing temperature does not reach 185° C within 27 sec of turning on the power, or the fusing temperature keeps at 140°C.

The white area and the black marking on the 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.

When the mirror base is returned for the 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.

polygon motor rotation

When a communication trouble occurs with the EEPROM.

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[11] USER PROGRAM

The conditions of factory setting can be changed according to the use conditions.

1. Functions that can be set with user programs

Function Contents Factory setting

Auto clear • When a certain time is passed after completion of copying, this function returns to the initial state

Pre-heat • When the copier is left unused with the power ON, the power consumption is automatically reduced to

Auto shut off passing time

Stream feeding Only models with SPF Set Auto shut off setting • Used to set or cancel this function. Set Auto/Manual mode

resolution setup

* Note: The power consumption values in pre-heat and auto shut off may be varied depending on the use conditions.

2. Change the setting

automatically. The time to reach the initial state can be set in the range of 30 sec to 120 sec by the unit of 30 sec. This function can be disabled.

about 40Wh/H (* Note).The time to start this function can be set in the range of 30 sec to 90 sec by the unit of 30 sec. This function cannot be disabled.

• When this function is operated, the pre-heat lamp on the operation panel lights up. To return to the initial state, press any key on the operation panel. (When the COPY button is pressed, a copy is made after returning to the initial state.)

• When the copier is left unused with the power ON, the power consumption is automatically reduced to about 18Wh/H (* Note). The time to start this function can be set in the range of 2 min to 120 min.

• When this function is operated, all the lamps except for the pre-heat lamp on the operation panel turn off. To return to the initial state, press the COPY button.

• Used to set the resolution in the auto/manual mode. The speed priority (300dpi) and the resolution priority (600dpi) are effective for fine text and ultra fine text.

60 sec

30 sec

5 min

300 dpi

Example: Changing the time to operate the auto clear function

(Change from 60 sec to 90 sec)

1) Press the right and the left exposure adjustment keys simultaneously to start setting.

• Keep pressing the keys for 5 sec.

• Display lamps ( , , ) blink simultaneously and " -- " is dis-

played on the copy quantity display.

2) Select the function code with the 10-digit key (copy quantity set key).

• The number of the selected function blinks on the digit of 10 on the

copy quantity display.

• For auto clear, select " 1. "

• For setting, refer to the following function codes.

Function name Function code Auto clear 1 Pre-heat 2 Auto shut off passing time 3 Stream feeding 4* Auto shut off setting 5 Auto/Manual mode resolution setup 6

[Cancel] If a wrong code is entered, press the clear key and enter the

correct function code.

* SPF only

3) Press the COPY button.

• The number blinking on the digit of 10 of the copy quantity display is lighted.

• The number of the current set code blinks on the digit of 1.

4) Select the setting code with 1-digit key (copy quantity set key).

• To set to 90 sec, select " 3. "

• For setting, refer to the following set codes.

Function name Set code

Auto clear 0 (OFF)

1 (10 sec) 2 (30 sec)

*3 (60 sec)

4 (90 sec)

5 (120 sec)

Pre-heat *0 (30 sec)

1 (60 sec) 2 (90 sec)

Auto shut off 0 (2 min)

*1 (5 min) 2 (15 min) 3 (30 min) 4 (60 min)

5 (120 min)

Stream feeding 0 (Cancel)

*1 (Setting)

Auto shut off setting 0 (Cancel)

*1 (Setting)

Auto/Manual mode resolution setup *0 (300 dpi)

1 (600 dpi)

* Factory setting

• The number blinking on the digit of 1 of the copy quantity display is lit up. This means the setting is completed.

[Cancel] When a wrong number of the function code is set, press the

clear key and perform the procedure again from step 2.

5) Press the COPY button.

• The number blinking on the digit of 1 of the copy quantity display is lit up. This means the setting is completed.

Note: To set another function, press the clear key after completion of

this operation and perform the procedure from step 2.

6) Press either one of the exposure adjustment keys ( or ) to

complete the setting.

• Display lamps ( , , ) go off and the copy quantity display returns to the normal state.

AL-1551CS USER PROGRAM 11 - 1

Page 95

3. Density level adjustment

4. Toner save mode setup and cancel

A. AE level adjustment (OC mode)

[Input procedure]

When the density select key is pressed and held for 5 sec after turning on the [PHOTO] mode lamp, the [AUTO] mode lamp blinks and the current setup of the density level is displayed.

[Adjustment]

The adjustment is made in 5 steps by pressing the density adjustment key.

[Terminating procedure]

When the density select key is pressed, the mode display is changed from blinking to lighting, and the AE level setup is completed.

• In the AE level adjustment mode, all the keys except for the [Density select] key, the [Density adjustment] keys ([>] key and [< ] key) are disabled.

• In the AE level adjustment mode, the ready lamp and the online lamp are turned off.

• The auto mode level adjustment is applied only for the auto mode.

• When the machine enters the exposure adjustment mode of OC once, the adjustment mode is not changed though a document is set on the SPF until the setup is completed.

B. AE level adjustment (SPF mode)

[Input procedure]

With the SPF mode lamp ON, when the density select key is pressed and held for 5 sec after turning on the [PHOTO] mode lamp, the [AUTO] mode lamp blinks and the current setup of the density level is displayed.

[Adjustment]

The adjustment is made in 5 steps by pressing the density adjustment key.

[Terminating procedure]

When the mode select key is pressed, the mode display is changed from blinking to lighting, and the AE level setup is completed.

• During the AE level adjustment mode, all the keys except for the [Density select] key, the [Density adjustment] keys ([>] key and [<] key) are disabled.

• During the AE level adjustment mode, the ready lamp and the online lamp are turned off.

• The auto mode level adjustment is applied only for the auto mode.

• When the machine enters the SPF exposure adjustment mode once, the adjustment mode is not changed though a document is removed from the SPF until the setup is completed.

• This function is not available for the OC model.

[Input procedure]

When the density select key is pressed and held for 5 sec after turning on the [TEXT] mode lamp, the [PHOTO] mode lamp blinks and the current setup of the density level is displayed.

[Setup/Cancel]

When the density adjustment key [<] is pressed, Level 1 is lighted and the toner save mode is set. When the density adjustment key [>] is pressed, Level 5 is lighted and the toner save mode is canceled.

[Terminating procedure]

When the density select key is pressed, the mode display is changed from blinking to lighting, and the setup is completed.

• During the toner save mode setup, all the keys except for the [Density select] key, the [Density adjustment] keys ([ > ] key and [<] key) are disabled.

• During the toner save mode setup, the ready lamp and the online lamp are turned off.

• The toner save mode is applied in the auto mode and the manual mode.

AL-1551CS USER PROGRAM 11 - 2

Page 96

[12] ELECTRICAL SECTION

Clock,Data,

LATCH

MCU PWB UNIT

I2C Bus

A[16..0]

A[19..0] D[15..0]

A[19

D[15

Power Reset

3.3V

3.3V/5V/

5VEN/12V

24V

EEPROM

(2Kb)

Reset IC

SRAM

(1Mb x 1)

1. Block diagram

A. Overall block diagram

ROM

(4Mb)

Power Supply Unit

(Low Power/High Power)

D[15 8]

Carriage Unit

Lamp

Inverter

CCFL

8bits MSB/LSB)

VCL

16bits

SELin

Kin

PSW

Operation PWB

ADCCLK

BSAMP, VSAMP

SDRAM

(8MB/16MB)

3.3V

SDI, SCLK, LOAD

OSC

(24MHz)

OSC

3.3V

ASIC Reset

ASIC

(13.9867MHz)

CPU

H8S/2320

CPU

H8S/2320

A[9

D[15

(19.6608MHz)

MMD

VFM

Laser

LSU UNIT

DMT0/1/2/3

TM+, TM–

PMD

Polygon Motor

SPMT0/1/2/3

Duplex Motor

SPF Motor

PMCLK

CCD PWB

AFE(AD9826)

12V

CCD

( uPD8861)

CCD Driver

5VEN

1, 2, TG, TG2, TG3

RB, CLB, 1L

USB I/F

USB1.

I/F PWB

(Optional)

I/F PWB

(Optional)

IEEE128

IEEE 1284 I/F

AL-1551CS ELECTRICAL SECTION 12 - 1

Main Motor

Other Loads

CPFS2 Toner Motor Scanner Motor

SRRC SPUS SPPS

TC GRIDL MC BIAS

MPFS,RRS,HL,PR FAN Motor

SGS

MPFS

CPFS1

SPPD

MHPS

Other Inputs

CPU I/O

CPU INTERRUPT

MultiPlexed

RTH

PPD1, POD, MFD, CED1, TCS,

DVS1, PPD2, PPD3, CED2, DSWS

SDSW, SPID, SDOD, DRST

Page 97

B. MCU PWB unit

Toner

Motor

Main

Motor

SPF

Motor

Duplex

Motor

Scanner

Motor

Operation

PWB

CCD

PWB

Inverter

PWB

Copy

Lamp

POWER

SUPPLY

NewDrum

Detect

PPD1

POD

MFD

FAN

Motor

Cassette

Detect

CPFS

MPFS

RRS

SDOD

DSPF

Model Onl y

SPF/DSPF

Model Onl y

CN106

CN111

CN114

CN123

CN108

CN109

CN117

CN116

CN110

IC126

CN114

IC128

CN122

LSU UNI T

(Polygon Motor)

IC127

CN103

IC129

CN124

IC103

CPU(H8S / 2320)

I C106

ASIC

HG73C119HF

CN123 IC121

IC115

IC117

IC114

IC119

IC121

IC124

CN101

IC125

CN104

IC115

IC114

IC116

CN102

CN112

IC124

IC125

Interlock SW

IC118

IC113

IC124

IC121

CN119

IC115

CN107

IC113

Interface

PWB

IC131

CN105

/VIDE O MPRDY

/SYNC

SPMT_0 – 3 /DMT_0 – 3

OUT_A+ – B-

SHOL D

/LDEN

PSW

TMA _O MMLD /MMD

KI N1

KI N2

OP_CLK

Et c

OP_LATCH

OP_DATA

Et c

AFE_CL K

AD_CLK

VCL

Et c

AFE_DB0 – 7

MT_AT_H OME

Et c

USBI N

VPI N

VM IN

Et c

PA RAD0 – 7

VPOUT

VM OUT

Etc

/POFF

HL OUT

Et c

3.3VIN

5VIN

12VIN

24VIN

Et c

TMB _O

VFM OUT

/VFM CNT

IC125

CN120

PPD2

THERMISTOR

HIGH VOLTAGE

CONTROL UNIT

Heater Lamp

DV UNIT

DVSEL

AL-1551CS ELECTRICAL SECTION 12 - 2

Page 98

2. Circuit descriptions

A. Main PWB (MCU)

(1) General

The MCU PWB is composed of:

• CPU peripheral sections which perform mechanical sequence control and function job management

• Image process ASIC which performs image process, CCD control, LSU control, and print control

• Motor control circuit

• Mechanical load, sensor I/O circuit

It controls the processes for copying, the transport loads, fusing, the optical system, the operation panel, and the option PWB.

(2) CPU signal table (HD6412320F)

PIN No.

10 GND DGND 11 A4 Output Address bus 12 A5 Output Address bus 13 A6 Output Address bus 14 A7 Output Address bus 15 A8 Output Address bus 16 A9 Output Address bus 17 A10 Output Address bus 18 A11 Output Address bus 19 GND DGND 20 A12 Output Address bus 21 A13 Output Address bus 22 A14 Output Address bus 23 A15 Output Address bus 24 A16 Output Address bus 25 A17 Output Address bus 26 A18 Output Address bus 27 A19 Output Address bus 28 GND DGND 29 A20 Pull-Up 30 PSW Interruption

31 SPPD Interruption

32 CCD_TG Interruption

33 Mt_at_home Interruption

34 /CPUSYNC Interruption

35 GND DGND 36 GND DGND 37 FW Interruption

38 ARB_INT Interruption

39 Vcc CPU3.3V 40 D0 Data I/O Data bus 41 D1 Data I/O Data bus 42 D2 Data I/O Data bus 43 D3 Data I/O Data bus 44 GND DGND

Signal code

1 /CS1 Output SRAM chip select 2 /CS0 Output Flash ROM chip select 3 GND DGND 4 GND DGND 5 Vcc CPU3.3V 6 A0 Output Address bus 7 A1 Output Address bus 8 A2 Output Address bus 9 A3 Output Address bus

Input/

Output

level input

Operating

Print SW

SPF paper sensor

CCD horizontal sync signal

Mirror Home Position

Horizontal sync (ASIC)

Zero cross signal

ASIC interruption

No.

100 GND DGND 101 SCL Output EEPROM clock 102 DSDA Data I/O EEPROM Data bus 103 AVcc CPU3.3V 104 Vref CPU3.3V 105 RTH Analog

106 Analog

107 SIN1 Input HC151 select detection 108 SIN2 Input HC151 select detection 109 SIN3 Input HC151 select detection

Signal code

45 D4 Data I/O Data bus 46 D5 Data I/O Data bus 47 D6 Data I/O Data bus 48 D7 Data I/O Data bus 49 D8 Data I/O Data bus 50 D9 Data I/O Data bus 51 D10 Data I/O Data bus 52 D11 Data I/O Data bus 53 GND DGND 54 D12 Data I/O Data bus 55 D13 Data I/O Data bus 56 D14 Data I/O Data bus 57 D15 Data I/O Data bus 58 Vcc CPU3.3V 59 ONL Output Online LED control 60 TxD1 Output For debug 61 D_CONT Output USB Pull-Up control 62 BEO Output OPE LED control 63 RESETOUT1 Output ASIC Reset signal 64 CL_Reset Output Copy lamp control 65 GND DGND 66 /DREQ0 Pull-Up 67 GND DGND 68 GND DGND 69 RY/BY Input Flash Busy signal 70 KIN1 Input HC151 selector detection 71 KIN2 Input HC151 selector detection 72 TMCLK Output Toner motor lock 73 TMEN Output Toner motor enable 74 POFF Output Shut off control 75 PMCLK Output Polygon clock 76 DMT0 Output Duplex Motor signal 77 DMT1 Output Duplex Motor signal 78 DMT2 Output Duplex Motor signal 79 DMT3 Output Duplex Motor signal 80 WDTOVF Output NC Pull-Up 81 /RES Input Reset 82 NMI Output NC Pull-Up 83 STBY Output NC Pull-Up 84 Vcc CPU3.3V 85 XTAL Input Clock 86 EXTAL Output Clock 87 GND DGND 88 CPUCLK Output NC 89 Vcc CPU3.3V 90 Reset OUT NC 91 /RD Output Read signal 92 /HWR Output Write signal (High address) 93 /LWR Output Write signal (Low address) 94 SELIN3 Output HC151 select signal 95 SELIN2 Output HC151 select signal 96 SELIN1 Output HC151 select signal 97 FAXSTS NC 98 FAXCMD NC 99 GND DGND

Output

input

Input/

Operating

Fusing thermistor

NC Pull-Up

AL-1551CS ELECTRICAL SECTION 12 - 3

Page 99

PIN No.

Signal code

Input/

Output

Operating

110 USBIN Input IF PWB detection signal 111 Input NC 112 Input NC 113 Avss DGND 114 GND DGND 115 /SCANSP Output Scan STOP signal 116 /SCANST Output Scan START signal 117 /TRANSST Output ASIC transfer signal 118 /PRINTST Output Print Start signal 119 SPMT3 Output SPF motor signal 120 SPMT2/MIRCNT Output/

Input

SPF motor signal/mirror

counter 121 SPMT1 Output SPF motor signal 122 SPMT0 Output SPF motor signal 123 GND DGND 124 GND DGND 125 Vcc CPU3.3V 126 PSL Output Power save LED control 127 NC 128 /CS2 Output ASIC chip select

(3) Image process ASIC (HG73C119HF)

a. General

The ASIC is composed of the three major blocks: the image process section, the print control section, and the I/F section.

Image process section:

With image data from the CCD PWB in the operation mode determined by the register setup, shading, AE process, input γ correc- tion, area separation, filter process, resolution conversion, zoom process, output γ correction, binary conversion (error diffusion, dither method, simple binary conversion) are performed.

Print control section:

When copying, the image-processed data are outputted to the LSU according to the LSU writing timing. When scanning, the image data are made into 8bit width and outputted to the I/F section (USB).

I/F section:

Controls the DRAM which is the image data buffer, and processes data send/receive between the USB I/F and the IEEE1284 I/F.

The ASIC is controlled by writing the operation mode and the necessary setup values of the operation mode into the ASIC control register before starting each operation. (For ASIC Pin configuration, refer to the table at the end of this document.)

Scan start

CCD PWB

Shading

ASIC

Image process section

CCD drive

Resolution conversion, Zooming, lmage process circuit

b. ASIC (Signal table)

Signal Name IN/OUT

No.

Connected

Description

1 cpu_ad7 IN CPU CPU address bus 2 cpu_ad6 IN CPU CPU address bus 3 cpu_ad5 IN CPU CPU address bus 4 cpu_ad4 IN CPU CPU address bus 5 VCC(CORE/DC)

Power

3.3V 6 cpu_ad3 IN CPU CPU address bus 7 cpu_ad2 IN CPU CPU address bus 8 GND(CORE/DC) Power 9 cpu_ad1 IN CPU CPU address bus

10 sgs OUT Tr array IC SPF/RSPF gate

solenoid control signal "H":ON

Print control section

Print data process circuit

DRAM control

I/F section

DRAM 8MB or 16MB

PIN No.

11 srrc OUT Tr array IC SPF/RSPF resist roller

12 spus OUT Tr array IC SPF/RSPF document

13 spfs OUT Tr array IC SPF/RSPF document

14 mrps1 OUT Tr array IC SPF/RSPF motor

15 mrps2 OUT Tr array IC SPF/RSPF motor

PRINT control

ASIC control resistor

Signal Name IN/OUT

To CPU bus

Connected

LSU

HSYNC

VSYNC

Description

clutch control signal "H":ON

feed solenoid control signal "H":ON

transport solenoid control signal "H":ON

current control signal

AL-1551CS ELECTRICAL SECTION 12 - 4

Page 100

Signal Name IN/OUT

No.

16 ope_latch OUT Tr array IC Operation circuit latch

17 op_data OUT Tr array IC Operation circuit data

18 VCC(AC) 3.3V Power 19 op_clk OUT Tr array IC Operation circuit clock

20 vfmcnt OUT Tr array IC Ventilation fan rotation

21 GND(AC) Power 22 vfm OUT Tr array IC Ventilation fan control

23 tc OUT Tr array IC Transfer charger

24 gridl OUT Tr array IC Main charger grid

25 mc OUT Tr array IC Main charger control

26 mrps3 OUT Tr array IC SPF/RSPF motor

27 mm_y3 OUT Tr array IC Carriage motor current

28 bias OUT Tr array IC DV bias control signal.

29 lden OUT Tr array IC Laser circuit control

30 pmd OUT Tr array IC Polygon motor control

31 GND(CORE/DC) Power 32 mmd OUT Tr array IC Main motor control

33 GND(CORE/DC) Power 34 VCC(CORE/DC)

3.3V

35 mpfs OUT Tr array IC Manual feed solenoid

36 cpfs2 OUT Tr array IC Second cassette

37 cpfs1 OUT Tr array IC Cassette paper feed

38 poffr (Not used) 39 rrs OUT Tr array IC Resist roller solenoid

40 pr OUT Tr array IC Power relay control

41 hl OUT Tr array IC Heater lamp control

42 TMON OUT Tr array IC (Not used) 43 TM_ OUT Buffer IC Toner motor control

44 VCC(AC) 3.3V Power 45 TM OUT Buffer IC Toner motor control

46 miron OUT Buffer IC SPF scanner select

47 GND(AC) Power 48 spfon OUT Buffer IC SPF ON signal

Power

Connected

Description

signal. Data take-in at "L"

signal

speed control signal. "H": High speed, "L": Low speed

signal. "H": Fan ON

control signal. "H":ON

control signal. "H": L output

signal. "H": ON

current control signal

control signal

"H":ON

signal. "H": Laser circuit ON

signal. "H": Polygon motor ON

signal. "H": Main motor ON

control signal. "H": ON

paper feed solenoid control signal. "H":ON

solenoid control signal. "H":ON

control signal. "H":ON

signal. "H":ON

signal

Signal Name IN/OUT

No.

49 mircnt OUT Buffer IC SPF scanner select

50 GND(AC) Power 51 pcl_s_print (Not used) 52 fax_s_print (Not used) 53 es_s_print (Not used) 54 prareaen (Not used) 55 d_s_ATDI_B (Not used) 56 GND(CORE/DC) Power 57 VCC(CORE/

GND) 3.3V 58 pfclko (Not used) 59 RESET IN ASIC reset signal 60 GND(CORE/DC) Power 61 ATRST IN (Not used) 62 ATCK (Not used) 63 ATMS (Not used) 64 VCC(AC) 3.3V Power 65 ie1284_stb IN I/F board

66 ie1284_autofd IN I/F board

67 ie1284_slctin IN I/F board

68 ie1284_init IN I/F board

69 VCC(CORE/DC)

3.3V

70 ie1284_slct OUT I/F board

71 ie1284_pe OUT I/F board

72 GND(CORE/DC) Power 73 ie1284_busy OUT I/F board

74 ie1284_ack OUT I/F board

75 ie1284_fault OUT I/F board

76 ie1284_rev OUT I/F board

77 ie1284_parad7 IN/OUT I/F board

78 ie1284_parad6 IN/OUT I/F board

79 ie1284_parad5 IN/OUT I/F board

80 ie1284_parad4 IN/OUT I/F board

81 ie1284_parad3 IN/OUT I/F board

82 VCC(AC) 3.3V 83 ie1284_parad2 IN/OUT I/F board

84 ie1284_parad1 IN/OUT I/F board

85 GND(AC) Power

Power

Connected

connector

Description

signal

/STB signal (IEEE1284 communication port) /AUTOFD signal (IEEE1284 communication port) /SLCTIN signal (IEEE1284 communication port) /INIT signal (IEEE1284 communication port)

SLCT signal (IEEE1284 communication port)

PE signal (IEEE1284 communication port)

BUSY signal (IEEE1284 communication port)

/ACK signal (IEEE1284 communication port) /FAULT signal (IEEE1284 communication port)

/REV signal (IEEE1284 communication port)

DATA bus (IEEE1284 communication port)

AL-1551CS ELECTRICAL SECTION 12 - 5

Sharp AL-1551CS, AL-1540CS, AL-1530CS, AL-1215 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual