Sharp AL-1340, AL-1451, AL-1551 Service Manual. Parts Guide

4 (1)

CODE : 00ZAL1551/A1E

DIGITAL COPIER

AL-1340 AL-1451

(AL-1551) MODEL AL-1551

 

 

CONTENTS

 

 

 

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

. 1

- 1

[ 2 ] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

- 1

[ 3 ] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

- 1

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

4

- 1

[ 5 ] UNPACKING AND INSTALLATION. . . . . . . . . . . . . . . . . . . . . .

5

- 1

[ 6

] COPY PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

- 1

[ 7

] OPERATIONAL DESCRIPTIONS. . . . . . . . . . . . . . . . . . . . . . .

7

- 1

[ 8

] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .

8

- 1

[ 9

] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

- 1

[10] 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 specified ones for maintaining the safety and performance of the machine.

This document has been published to be used for SHARP CORPORATION after sales service only.

The contents are subject to change without notice.

CAUTION

This product is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 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 : 780 ~ 795 Pulse times : 0.481ms/6mm

Out put power : 0.20 ± 0.03mW

CAUTION

VARO !

INVISIBLE LASER RADIATION,

AVATTAESSA JA SUOJALUKITUS

WHEN OPEN AND INTERLOCKS DEFEATED.

OHITETTAESSA OLET ALTTIINA

NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE ÄLÄ

AVOID EXPOSURE TO BEAM.

KATSO SÄTEESEEN.

 

VORSICHT

UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEÖFFNET UND

SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.

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.

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.

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

The foregoing is applicable only to the 220V

 

 

 

KLASS 1 LASER APPARAT

model, 230V model and 240V model.

 

 

 

 

 

 

 

 

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. Printer specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 5. SPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 6. 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 5. Sensors and switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 6. PWB unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 7. Cross sectional view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

[5]UNPACKING AND INSTALLATION

1. Copier installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 2. Cautions on handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 3. Checking packed components and accessories . . . . . . . . . 5-2 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 9. Installing the printer driver . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 10. Parallel interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

[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 . . . . . . . . . 7-5 6. Process unit new drum detection mechanism . . . . . . . . . . . 7-8 7. SPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 8. D-D (Duplex to Duplex) mode paper/

document transport (Duplex model). . . . . . . . . . . . . . . . . . . 7-9

[8]DISASSEMBLY AND ASSEMBLY

1. High voltage section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1 2. Operation panel section . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2 3. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3 4. Fusing section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4 5. Tray paper feed/transport section . . . . . . . . . . . . . . . . . . . . .8-7 6. Manual paper feed section . . . . . . . . . . . . . . . . . . . . . . . . .8-11 7. Rear frame section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15 8. Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-16 9. SPF section (SPF model only) . . . . . . . . . . . . . . . . . . . . . .8-16 10. 2nd cassette section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-19 11. Duplex motor section (RSPF model only). . . . . . . . . . . . . .8-21 12. Reverse roller section (RSPF model only) . . . . . . . . . . . . .8-21 13. RSPF section (RSPF model only) . . . . . . . . . . . . . . . . . . .8-21

[9] ADJUSTMENTS

1. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1 2. Copy density adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8 3. High voltage adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9 4. Duplex adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9

[10] SIMULATION, TROUBLE CODES

1. Entering the simulation mode . . . . . . . . . . . . . . . . . . . . . . .10-1 2. List of simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2 3. Contents of simulations (new or revised simulations only) .10-3 4. Trouble codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-14

[11] USER PROGRAM

1. Functions which can be set with the user program. . . . . . .11-1

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

[12]ELECTRICAL SECTION

1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1 2. Circuit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-3 3. Reset circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-10 4. Heater lamp control circuit . . . . . . . . . . . . . . . . . . . . . . . .12-11 5. Driver circuit (Solenoid) . . . . . . . . . . . . . . . . . . . . . . . . . .12-12 6. Toner supply motor drive circuit . . . . . . . . . . . . . . . . . . . .12-12 7. Main motor drive circuit. . . . . . . . . . . . . . . . . . . . . . . . . . .12-12 8. Mirror motor circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13 9. Duplex motor circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13 10. Power circuit block diagram . . . . . . . . . . . . . . . . . . . . . . .12-14 11. CL invertor PWB (circuit) . . . . . . . . . . . . . . . . . . . . . . . . .12-17 12. CCD PWB operational description . . . . . . . . . . . . . . . . . .12-17 13. Operation section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-18

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

[1] GENERAL

1. Major functions

Configurations

 

Item

CPM

SB/MB

2 Tray

 

SPF

R-SPF

FAX

GDI with

GDI

PCL with

SOPM

Duplex

 

 

 

 

 

 

 

 

 

USB

without

USB

 

 

Model

 

 

 

 

 

 

 

 

 

USB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL-1340

13CPM

SB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL-1451

14CPM

SB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL-1551

15CPM

MB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

FAX:

 

FAX function.

 

 

 

 

 

 

 

 

 

 

GDI with USB:

GDI printer function with USB.

 

 

 

 

 

 

 

 

GDI without USB: GDI printer function without USB.

 

 

 

 

 

 

 

 

PCL with USB:

PCL printer function with USB.

 

 

 

 

 

 

 

 

SOPM:

Scan Once Print Many function (Many copies are made by one scan.)

 

 

 

 

Duplex:

Auto duplex copy function

 

 

 

 

 

 

 

 

Descriptions of table

 

 

 

 

 

 

 

 

 

 

 

:

Standard provision

 

 

 

 

 

 

 

 

 

 

 

:

No function or no option available

 

 

 

 

 

 

 

 

 

 

Opt:

Option

 

 

 

 

 

 

 

 

 

 

 

 

AL-1451

AL-1340

AL-1551

AL-1551 GENERAL 1-1

[2] SPECIFICATIONS

1. Basic Specifications

Item

 

 

 

 

 

 

 

Type

 

Desktop

 

 

 

 

 

Copy system

 

Dry, electrostatic

 

 

 

 

 

Segment (class)

 

Digital personal copier

 

 

 

 

 

Copier dimensions

AL-1340

20.4"(W)X17.5"(D)X11.5"(H) (518mm(W)X445mm(D)X293mm(H))

 

 

 

 

AL-1451

20.4"(W)X18.8"(D)X15.0"(H) (518mm(W)X477mm(D)X379mm(H))

 

 

 

 

AL-1551

20.4"(W)X18.8"(D)X18.3"(H) (518mm(W)X477mm(D)X464mm(H))

 

 

 

 

Weight

AL-1340

39.7lbs.(18Kg)

TD and drum cartridges included

(Approximately)

 

 

 

AL-1451

47.4lbs.(21.5Kg)

 

 

 

 

 

 

AL-1551

54.3lbs.(24.6Kg)

 

 

 

 

 

2. Operation specifications

 

Section, item

Details

 

 

 

 

 

 

Paper feed

Paper feed

 

AL-1340 / 1451

1 tray (250 sheet) + single bypass

section

system

 

 

 

 

AL-1551

2 tray (500 sheet) + multi bypass (50 sheet)

 

 

 

 

 

 

AB system

Tray paper feed

Paper size

A4, B5, A5 (Landscape)

 

 

section

 

 

 

 

Paper weight

56 - 80g/m (15 - 21 lbs.)

 

 

 

 

 

 

 

 

Paper feed capacity

250 sheets

 

 

 

 

 

 

 

 

Kinds

Standard paper, specified paper, recycled paper

 

 

 

 

 

 

 

 

Remark

User adjustment of paper guide available

 

 

 

 

 

 

 

Multi bypass paper

Paper size

A4, B5, A5, B6, A6 (Landscape)

 

 

feed section

 

 

 

 

Paper weight

52 - 130g/m (14 - 34.5 lbs.)

 

 

 

 

 

 

 

 

Paper feed capacity

50 sheets

 

 

 

 

 

 

 

 

Kinds

Standard paper, specified paper, recycled paper, OHP,

 

 

 

 

Label, Postal card

 

 

 

 

 

 

 

 

Remark

User adjustment of paper guide available

 

 

 

 

 

 

 

Single bypass paper

Paper size

A4, B5, A5, B6, A6 (Landscape)

 

 

feed section

 

 

 

 

Paper weight

52 - 130g/m (14 - 34.5 lbs.)

 

 

 

 

 

 

 

 

Paper feed capacity

1 sheet

 

 

 

 

 

 

 

 

Kinds

Standard paper, specified paper, recycled paper, OHP,

 

 

 

 

Label, Postal card

 

 

 

 

 

 

 

 

Remark

User adjustment of paper guide available

 

 

 

 

 

 

Inch system

Tray paper feed

Paper size

8-1/2" x 14", 8-1/2 x 11", 8-1/2" x 5-1/2" (Landscape)

 

 

section

 

 

 

 

Paper weight

15 - 21 lbs.

 

 

 

 

 

 

 

 

Paper feed capacity

250 sheets

 

 

 

 

 

 

 

 

Kinds

Standard paper, specified paper, recycled paper

 

 

 

 

 

 

 

 

Remark

User adjustment of paper guide available

 

 

 

 

 

 

 

Multi bypass paper

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"

 

 

feed section

 

(Landscape)

 

 

 

 

 

 

 

 

Paper weight

14 - 34.5 lbs.

 

 

 

 

 

 

 

 

Paper feed capacity

50 sheets

 

 

 

 

 

 

 

 

Kinds

Standard paper, specified paper, recycled paper, OHP,

 

 

 

 

Label, Postal card

 

 

 

 

 

 

 

 

Remark

User adjustment of paper guide available

 

 

 

 

 

 

 

Single bypass paper

Paper size

8-1/2" x 14", 8-1/2 x 11", 8-1/2" x 5-1/2" (Landscape)

 

 

feed section

 

 

 

 

Paper weight

14 - 34.5 lbs.

 

 

 

 

 

 

 

 

Paper feed capacity

1 sheet

 

 

 

 

 

 

 

 

Kinds

Standard paper, specified paper, recycled paper, OHP,

 

 

 

 

Label, Postal card

 

 

 

 

 

 

 

 

Remark

User adjustment of paper guide available

 

 

 

 

 

Paper exit section

Exit way

 

Face down

 

 

 

 

 

 

 

Capacity of output tray

 

100 sheets

 

 

 

 

 

Originals

 

Original set

 

Center Registration (left edge)

 

 

 

 

 

 

 

Max. original size

 

B4 (10" x 14")

 

 

 

 

 

 

 

Original kinds

 

sheet, book

 

 

 

 

 

 

 

Original size detection

 

None

 

 

 

 

 

AL-1551 SPECIFICATIONS 2-1

 

Section, item

Details

 

 

 

 

 

 

 

Optical section

Scanning

Scanning system

 

 

CCD sensor scanning by lighting lamp scanner

 

section

 

 

 

 

 

CCD sensor

Resolution

 

400 dpi

 

 

 

 

 

 

 

 

Lighting lamp

Type

 

Xenon lamp

 

 

 

 

 

 

 

 

 

Voltage

 

1.5kV

 

 

 

 

 

 

 

 

 

Power consumption

 

11 ± 3W

 

 

 

 

 

 

 

 

Gradation

 

 

256 gradations/8bit

 

 

 

 

 

 

 

Writing

Writing system

 

 

Writing to OPC drum by the semiconductor laser

 

section

 

 

 

 

 

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 corotron system

 

 

 

 

 

 

 

 

 

Separation system

 

(-) DC corotron 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.

 

1000W

 

 

 

 

 

 

 

 

 

Average

AL-1340

260Wh/H *1)

 

 

 

(during copying)

 

 

 

 

 

AL-1451

280Wh/H *1)

 

 

 

 

 

 

 

 

 

 

AL-1551

310Wh/H *1)

 

 

 

 

 

 

 

 

 

Average (stand-by)

 

70Wh/H *1)

 

 

 

 

 

 

 

 

 

Pre-heat mode

 

40Wh/H *1)

 

 

 

 

 

 

 

 

Auto power shut-off mode

20Wh/H *1)

 

 

 

 

 

 

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

AL-1551 SPECIFICATIONS 2-2

3. Copy performance

 

Section, item

 

Details

AL-1340

AL-1451

AL-1551

 

 

 

 

 

 

Copy magnification

Fixed

 

3 Reduction + 2 Enlargement

 

 

 

magnification

 

(AB system : 50, 70, 81, 100, 141, 200%)

 

 

 

ratios

 

(Inch system : 50, 64, 78, 129, 100, 200%)

 

 

 

 

 

 

 

 

 

 

Zooming

 

50 - 200%

 

 

 

 

magnification

 

(151 steps in 1% increments)

 

 

 

ratios

 

 

 

 

 

 

 

 

 

 

Manual steps

 

 

5 steps

 

 

(manual, photo)

 

 

 

 

 

 

 

 

 

Copy speed

First copy time

Tray paper feed

9.6 sec. (Pre-heat mode:16 sec. or below / Auto power-shut-off mode :

 

 

 

 

23 sec. or below)

 

 

 

 

 

 

 

 

 

 

 

Manual paper feed

Single : 10.0 sec. / Multi : 8.0sec

 

 

 

 

 

(Pre-heat mode:16 sec. or below / Auto power-shut-off mode : 23 sec.

 

 

 

 

or below)

 

 

 

 

 

 

 

 

 

 

AB system

Copy speed

Same size

13

14

15

 

A4

(CPM)

 

 

 

 

 

Enlargement

13

14

15

 

(Landscape)

 

 

 

 

 

 

 

Reduction

13

14

15

 

 

 

 

 

 

 

 

 

 

 

AB system

Copy speed

Same size

13

14

15

 

B5

(CPM)

 

 

 

 

 

Enlargement

13

14

15

 

(Landscape)

 

 

 

 

 

 

 

Reduction

13

14

15

 

 

 

 

 

 

 

 

 

 

 

Inch system

Copy speed

Same size

13

14

15

 

8-1/2" x 14"

(CPM)

 

 

 

 

 

Enlargement

13

14

15

 

(Landscape)

 

 

 

 

 

 

 

Reduction

13

14

15

 

 

 

 

 

 

 

 

 

 

 

Inch system

Copy speed

Same size

13

14

15

 

8-1/2" x 11"

(CPM)

 

 

 

 

 

Enlargement

13

14

15

 

(Landscape)

 

 

 

 

 

 

 

Reduction

13

14

15

 

 

 

 

 

 

 

 

 

 

Max. continuous copy quantity

 

 

99

 

 

 

 

 

 

 

 

Void

Void area

leading edge

1 - 4mm

 

 

 

 

 

 

 

 

 

 

 

 

Trailing edge

4mm or less

 

 

 

 

 

 

 

 

 

 

 

 

Side edge void area

3mm or less/per side

 

 

 

 

 

 

 

 

 

Image loss

leading edge

same size: 3.0mm or less / Enlarge (200%): 1.5mm or less / Reduction

 

 

 

 

(50%): 6.0mm or less

 

 

 

 

 

 

 

 

 

 

Trailing edge

same size: 3.0mm or less / Enlarge (200%): 1.5mm or less / Reduction

 

 

 

 

(50%): 6.0mm or less

 

 

 

 

 

 

 

 

 

 

Side edge void area

same size: 3.0mm or less / Enlarge (200%): 1.5mm or less / Reduction

 

 

 

 

(50%): 6.0mm or less

 

 

 

 

 

 

 

 

Warm-up time

 

 

0 sec.

 

 

 

 

 

 

 

 

Power save mode reset time

 

 

0 sec.

 

 

 

 

 

 

 

 

Paper jam recovery time

 

 

0 sec.

 

 

 

 

 

 

 

 

 

AL-1551 SPECIFICATIONS 2-3

4. Printer specifications

Resolution

600 or 300 can be selected.

Page description language

SHARP GDI

Page onentation

Portrait or Landscape

First print time

Approx. 9.6 seconds*

Print speed(multiple pages)

Max.12 pages per minute(letter or A4)

Interface port

Bi-directional parallel interface(IEEE 1284 compliant)

*First print time may differ depending on operating conditions, such as power-supply voltage and room temperature. Also the time may differ depending on data quantity to be printed and applications.

5. SPF

Original capacity

30 sheets (52 to 90g/m )(14 to 23.9 lbs.)

Original size

B4 to A5/10" x 14" to 5-1/2" x 8-1/2"

Original replacement speed

12CPM(A4/8-1/2" x 11"Landscape)(14CPM model)

Original placement

Face up

Original weight

52 to 90g/m (14 - 23.9lbs.)

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.

6. RSPF

Original capacity

 

30 sheets (52 to 90g/m )(14 to 23.9 lbs.)

 

Original size

 

B4 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 (14 - 23.9lbs.)

 

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.

 

AL-1551 SPECIFICATIONS 2-4

[3] CONSUMABLE PARTS

1. Supply system table

Common to all destinations

No.

Name

Content

Life

Product name

Package

 

 

 

 

 

 

1

Develop cartridge (Black) x 1

Toner/developer cartridge x 1

6K

AL-100TD

5

 

(Except Europe)

(Toner: Net weight 220g)(Developer: Net weight 190g)

(5% document)

 

 

 

 

 

 

 

 

2

Develop cartridge (Black) x 1

Toner/developer cartridge x 1

4K

AL-110TD

5

 

(Except Europe)

(Toner: Net weight 124g)(Developer: Net weight 190g)

(5% document)

 

 

 

 

 

 

 

 

3

Develop cartridge (Black) x 1

Toner/developer cartridge x 1

4K

AL-110DC

5

 

(Europe)

(Toner: Net weight 124g)(Developer: Net weight 190g)

(5% document)

 

 

 

 

 

 

 

 

4

Drum cartirdge

Drum cartridge

18K

AL-100DR

5

 

 

 

 

 

 

2. Environmental

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

(1) Normal operating condition

(4) Supply storage condition

Temperature:20 - 25°C

Humidity:65 ± 5%RH

Humidity (RH)

(2) Acceptable operating condition

Humidity (RH)

 

 

85%

 

 

60%

 

 

20%

 

 

10˚C

30˚C

35˚C

90%

20%

–5˚C

45˚C

(3) Optical condition

Humidity (RH)

 

 

90%

 

 

60%

 

 

15%

 

 

–25˚C

30˚C

40˚C

AL-1551 CONSUMABLE PARTS 3-1

3.Production control number(lot No.) identification

<Developing cartridge>

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

 

 

 

 

 

 

B

Q

 

 

 

 

<Drum cartridge>

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

Production month Production day Destination code

(Dealer, distributor, OEM, etc.) Production place

(SOCC: Fixed to B.) End digit of year Version No.

<JAPAN production>

Ver.A 9

1

1 0001 X

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.

Division

No.

 

 

Ex production

1

 

 

Option

2

 

 

Same pack

3

 

 

Production control

label attachment position

Production control

label attachment position(*1)

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

AL-1551 CONSUMABLE PARTS 3-2

Sharp AL-1340, AL-1451, AL-1551 Service Manual. Parts Guide

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance

9

8

7

6

 

 

Original cover

10

SPF

 

 

18

11

17

1

 

19

12

 

 

2

RSPF

20

 

 

21

18

 

3

 

 

 

4

16

19

 

 

 

 

 

5

 

15

20

 

 

14

 

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

Handle

11

GDI printer interface

12

Paper output tray

13

Paper output tray extension

14

Handle

15

Power switch

16

Power cord socket

17

SPF exit area *1

18

Original guides

19

Document feeder tray

20

Feeding roller cover

21

RSPF exit area *2

*1 SPF only *2 RSPF only

 

 

 

 

2. Internal

 

 

 

 

 

1

 

 

3

 

 

 

2

 

4

 

 

 

 

 

 

 

 

7

 

 

 

5

6

 

 

 

 

 

 

 

 

 

 

 

 

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-1551 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4-1

3. Operation panel

 

1

2

3

4

 

5

 

6

7

 

8

9

10

11

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(AL-1551)

13 14

 

15

16

17

18

 

 

 

 

 

 

1

Duplex Mode select key and indicator

 

2

Exposure mode selector key and indicators

 

 

(RSPF only)

 

 

Use to sequentially select the exposure modes: AUTO, MANUAL or

 

 

 

 

PHOTO. Selected mode is shown by a lit indicator.

 

3

Light and dark keys and exposure indicators

 

4

Alarm indicators

 

 

 

 

Use to adjust the MANUAL or PHOTO exposure level.

 

Drum replacement required indicator

 

 

Selected exposure level is shown by a lit indicator.Use to start and

 

Misfeed indicator

 

 

 

 

terminate user program setting.

 

 

TD cartridge replacement required indicator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

SPF indicator

 

6

SPF misfeed indicator

 

 

 

7

Copy ratio selector key and copy ratio indicators

 

8

Zoom indicator

 

 

 

 

Use to sequentially select preset reduction/enlargement copy

 

 

 

 

 

 

ratios.

 

 

 

 

 

 

 

Selected copy ratio is shown by a lit indicator.

 

 

 

 

 

 

9

Copy ratio display (%) key

 

10

Display

 

 

 

 

 

 

 

Displays the specified copy quantity, zoom copy ratio, user program

 

 

 

 

code, and error code.

 

 

 

11

ON LINE indicator

 

12

Power save indicator

 

 

 

 

Lights up when the machine is used as a printer.

 

 

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

 

13

Tray select key

 

14

Paper feed location indicators

 

 

 

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

 

Light up to show the selected paper feed station.

 

15

Zoom keys

 

16

Copy quantity keys

 

 

 

 

Use to select any reduction or enlargement copy ratio from 50% to

 

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

 

 

200% in 1% increments.

 

 

•Use to make user program entries.

 

 

 

 

 

 

 

 

17

Clear key

 

18

Print key and ready indicator

 

 

 

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

 

•Copying is possible when the indicator is on.

 

 

copying.

 

 

•Use to set a user program.

 

 

 

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

AL-1551 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4-2

4. Motors and solenoids

3

9 2

10

8

4

1

5

7

6

11

No.

Part name

Control signal

Function,operation

 

 

 

 

1

Main motor

MM

Drives the copier.

 

 

 

 

2

Mirror 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-1551 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4-3

5. Sensors and switches

1

12

2

10

11

3

 

 

 

 

 

 

4

 

 

 

 

 

 

13

 

 

 

 

 

 

5

 

 

 

9

 

6

 

 

 

 

 

7

14

 

 

 

 

 

 

 

 

 

 

 

8

 

 

No.

Name

Signal

Type

Function

 

Output

1

Mirror home position sensor

MHPS

Transmission sensor

Mirror (scanner unit) home position

"H" at home position

 

 

 

 

detection

 

 

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

Microswitch

Cassette installation detection

"H" at cassette insertion

5

Manual feed detection switch MFD

Transmission sensor

Manual feed paper detection

"L" at paper detection

 

 

 

 

(single only)

 

 

6

PPD1 sensor

PPD1

Transmission sensor

Paper transport detection 1

 

"L" at paper pass

7

Door switch

DSW

Micro switch

Door open/close detection

 

1 or 0V of 5V at door open

 

 

 

 

(safety switch for 5V)

 

 

8

Door switch

DSW

Micro switch

Door open/close detection

 

1 or 0V of 24V at door open

 

 

 

 

(safety switch for 24V)

 

 

9

Drum reset switch

DRST

Micro switch

New drum detection switch

 

Instantaneously "H" at insertion of new

 

 

 

 

 

 

drum

10

SPF sensor

SPID/

Transmission sensor

Paper entry detection

 

"L" at paper pass

 

 

SD SW

 

Cover open/close detection

 

 

11

SPPD sensor

SPPD

Transmission sensor

Paper transport detection

 

"L" at paper pass

12

SDOD sensor

SDOD

Transmission sensor

SPF open/close detection Book sensor "L" at paper pass

13

2nd cassette

DSW

Micro switch

2nd cassette door open detection

1 or 0V of 5V at door open

14

PPD3 sensor

PPD3

Transmission sensor

Paper transport detection 3

 

"L" at paper pass

AL-1551 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4-4

6. PWB unit

 

10

1

2

9

5

8

6

4

3

7

No.

Name

Function

 

 

 

1

Exposure lamp invertor PWB

Exposure lamp (Xenon lamp) 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

Memory PWB 6MB

For memorying data

 

 

 

10

GDI Printer PWB

GDI Printer control

 

 

 

AL-1551 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4-5

7. Cross sectional view

19 16 17

4 6

5 3

18

1

2

7

8

9

10

11

12

 

 

15

14

13

 

 

 

 

No.

Part name

 

Function and operation

 

 

 

1

Scanner unit

Illuminates the original with the copy lamp and passes the reflected light to the lens unit(CCD).

 

 

 

 

2

Exposure lamp

Exposure lamp (Xenon lamp) Illuminates original

 

 

 

 

3

Lens unit

Scans the original image with the lens and the CCD.

 

 

 

4

LSU (Laser unit)

Converts the original image signal into laser beams and writes onto the drum.

 

 

 

 

 

5

Paper exit roller

Roller for paper exit

 

 

 

 

 

6

Main charger

Provides negative charges evenly to the drum surface.

 

 

 

 

 

7

Heat roller

Fuses toner on the paper. (Teflon roller)

 

 

 

 

 

 

8

Pressure roller

Fuses toner on the paper. (Silicon rubber roller)

 

 

 

 

 

 

9

Drum

Forms images.

 

 

 

 

 

 

 

10

Transfer unit

Transfers images onto the drum.

 

 

 

 

 

11

Pickup roller

Picks up the manual feed paper. (In multi feed only)

 

 

 

 

 

12

Manual paper feed tray

Tray for manual feed paper

 

 

 

 

 

13

Manual paper feed roller

Transport the paper from the manual paper feed port.

 

 

 

14

PS roller unit

Takes synchronization between the lead edge and the rear edge of the paper.

 

 

 

 

15

Paper feed roller

Picks up a sheet of paper from the cassette.

 

 

 

 

 

 

16

Pickup roller

Picks up documents.

 

 

 

 

 

 

 

17

Separation roller

Separates documents to feed properly.

 

 

 

 

 

 

18

PS roller

Feeds documents to the scanning section.

 

 

 

 

 

 

19

Paper exit roller

Discharges documents.

 

 

 

 

 

 

 

AL-1551 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4-6

[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, condensation 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

• 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.

+

8"(20cm)

4"

4"

(10cm)

(10cm)

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.

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.

AL-1551 UNPACKING AND INSTALLATION 5-1

3.Checking packed components and accessories

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

Power cord

Interface cable

(IBM PC/AT or compatible computer)

 

Operation manual

 

Printer driver (CD-ROM)

 

TD cartridge

Copier

Drum cartridge (installed in copier)

4. Unpacking

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).

6. Installing the TD cartridge

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.

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.

CAUTION tape

Protective pins

 

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

2)Use a coin (or suitable object) to remove the screw.

Store the screw in the paper tray because it will be used if the copier

has to be moved.

AL-1551 UNPACKING AND INSTALLATION 5-2

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.

4 or 5 times

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. 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 which has been removed in step 2 and the screw which has been removed when unpacking 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.

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)

Paper guide (A)

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.

AL-1551 UNPACKING AND INSTALLATION 5-3

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. Installing the printer driver

(Description of the printer driver)

The printer driver is the software program which runs the printer. It converts the data in your file into information that the printer can understand. It also controls communication between the printer and computer as the data is printed.

(Checking the hardware and software requirements)

You will need the following hardware and software in order to install the printer driver.

Computer type

IBM PC/AT or compatible computer equipped with a

 

bi-directional parallel interface and CD-ROM drive

Windows type

Windows 3.1x, Windows 95, Windows 98,

 

Windows Me, Windows NT 4.0, Windows 2000

Display

640 x 480 dots (VGA) or better

Hard disk

10 MB or more

free space

 

Hardware requirements, such as CPU performance rating and amount of RAM installed, are the same as for your operating system.

The printer driver included in this product cannot be used under Windows NT 3.5x, OS/2, pure MS-DOS and other operating systems which are not described above.

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 MS Windows documentation for further information.

(Installing the printer driver)

The software for your printer is provided on CD-ROM.

Before installing the printer driver, be sure to check the following items.

Is the printer connected properly to the computer?

Does the printer have paper?

Is there another GDI printer driver or Windows Printing System printer driver already installed? If installed, change the printer port setting.

A. Windows 95/Windows NT 4.0

1)Load paper into the paper tray of the printer.

2)Turn on the printer.

3)Turn on your computer and start Windows.

Before installing the printer driver, be sure to close all other applications which may be open.

4)When using Windows 95 on a personal computer with plug & play, the "Update Device Driver Wizard" window will appear. Insert the installation CD-ROM into the CD-ROM drive. Click the Next button and follow the on-screen instructions. If the "Copying Files" window appears during this operation, enter R:\ (substitute the letter of your CD-ROM drive for "R"), click the OK button and follow the on-screen instructions.

If you are using Windows 95 and the "New Hardware Found" window will appear, select Driver from Disk Provided by Hardware Manufacturer and then click the OK button. Proceed to step 6.

If you are using Windows 95 and the screen shown above or the "New Hardware Found" window does not appear, proceed to step 5.

If you are using Windows NT 4.0, proceed to step 5.

*Plug & play

This feature is effective if both the computer and peripheral equipment are equipped with IEEE 1284 compliant parallel interface.

Note:The screen displayed depends on the version of Windows.

5)Insert the installation CD-ROM into the CD-ROM drive.

Click the Start button and select Run. When the screen shown below appears, type R:\SETUP(substitute the letter of your CD-ROM drive for "R") and click the OK button. Follow the on-screen instructions.

AL-1551 UNPACKING AND INSTALLATION 5-4

6)The "Install From Disk" window will appear. Insert the installation CDROM into the CD-ROM drive. Type R:\ (substitute the letter of your CD-ROM drive for "R") and click the OK button.

Follow the on-screen instructions.

8)Insert the installation CD-ROM into the CD-ROM drive. Click the Start button and select Run. When the window shown below appears, type R:\SETUP (substitute the letter of your CD-ROM drive for "R") and click the OK button.

Follow the on-screen instructions.

B. Windows 98:

1)Load paper into the paper tray of the printer.

2)Turn on the printer.

3)Turn on your computer and start Windows.

Before installing the printer driver, be sure to close all other applications which may be open.

4)When using Windows 98 on a personal computer with plug & play, the "Add New Hardware Wizard" window will appear. Click the Next button and follow the on-screen instructions.

If the "Add New Hardware Wizard" window does not ap-pear, proceed to step 8.

C. Windows Me/Windows 2000:

1)Load paper in the paper tray of the printer.

2)Turn on the printer.

3)Turn on your computer and start Windows.

If a Plug & Play dialog box appears when you start Windows, click the Cancel button to close the dialog box.

Before installing the printer driver, be sure to close all other applications which may be open.

4)Insert the installation CD-ROM into the CD-ROM drive. Click the Start button and select Run. Type R:\SETUP (substitute the letter of your CD-ROM drive for "R") and click the OK button. Follow the onscreen instructions.

If the "Found New Hardware Wizard" window appears when you start Windows after installing the printer driver, click the Finish button.

5)Select Search for the best driver for your device and click the Next button.

6)Insert the installation CD-ROM into the CD-ROM drive. Select CD-ROM drive and click the Next button.

7)Windows driver file search will find the device “SHARP AL-1000 Series”. Click the Next button and follow the on-screen instructions.

D. Windows 3.1x:

1)Load paper into the paper tray of the printer.

2)Turn on the printer and then start Windows on your computer.

Before installing the printer driver, be sure to close all other applications which may be open.

3)Insert the installation CD-ROM into a CD-ROM drive.

4)Choose File from the Menu bar in Program Manager, and then choose the Run... command.

5)Type R:\SETUP (substitute the letter of your CD-ROM drive for "R") in the command line box and then click the OK button..

6) Follow the on-screen instructions.

AL-1551 UNPACKING AND INSTALLATION 5-5

E. AL-1000 Series printer driver group

When the printer driver is installed, the SHARP AL-1000 Series printer driver group will be created. This group allows the following functions to be executed.

Uninstall AL-1000 Series

The printer driver can be uninstalled. If the driver is uninstalled, printing cannot be performed on the printer. For proper uninstallation, be sure to use uninstallation program of the printer driver group.

Readme

The latest information on the printer driver is included in this note. Read the Readme first.

Advanced Settings

See help for application support and application problems that may occur when printing. See help for the applicable method of usage.

Status Monitor

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

DOS Emulation Setup

Status Monitor HELP

DOS Emulation HELP

Advanced Settings HELP

Be sure to read "Readme" found in the printer driver group before starting to print from application programs.

10.Parallel interface

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

Connector

36-pin DDK 57LE-40360-730B (D29) 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 follow-ing table.

18

1

 

36

 

 

 

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin No.

 

Signal name

Pin No.

 

Signal name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

STB

19

GND (STB RET)

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

28

GND

 

 

 

 

 

 

 

 

 

 

ACKNLG

(ACKNLG RET)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

BUSY

29

GND (BUSY RET)

 

 

 

 

 

 

 

 

 

 

 

 

12

PE (Paper End)

30

GND (PE RET)

 

 

 

 

 

 

 

 

 

 

 

 

13

SLTC

31

INPRM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

AUTO LF

32

FAULT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

(NC)

33

(NC)

 

 

 

 

 

 

 

 

 

 

 

 

16

GND (0 V)

34

(NC)

 

 

 

 

 

 

 

 

 

 

 

 

17

FG

35

+5 V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

+5 V

36

SLTC IN

 

 

 

 

 

 

 

 

 

 

 

 

AL-1551 UNPACKING AND INSTALLATION 5-6

[6] COPY PROCESS

An OPC drum is used for the photoconductor.

(Structure of the OPC drum layers)

OPC layer

(20microns thick)

Pigment layer (0.2 to 0.3 microns thick) Aluminium drum

1. Functional diagram

Main charger

 

Laser beam

Cleaning blade

MG roller

Drum

 

 

 

 

 

Transfer unit

 

 

 

 

 

Resist roller

 

(Basic operation cycle)

 

 

 

 

 

 

 

 

Semiconductor laser

 

 

 

 

 

 

Focus correction lens

 

 

 

Main high voltage unit

 

Exposure

 

 

 

 

 

 

 

 

 

 

Saw tooth

Charge

 

 

 

 

 

 

 

 

 

Toner

 

 

 

 

Drum

Developing

Developer

 

 

 

Cleaning

 

 

 

 

 

 

 

 

 

Cleaning blade

 

 

 

 

 

 

Waste toner box

 

 

 

PS roller

To face

Paper release

Fusing

Separation

Transfer

Synchronization

Manual feed

down tray

with drum

 

 

 

 

 

 

 

Heat roller

Electrode

Transfer charger

Cassette

 

 

 

 

 

 

 

 

 

 

 

 

paper feed

 

 

 

Heater lamp

 

Transfer high

 

 

 

 

 

 

voltage unit

 

Print process

 

 

 

 

 

 

Paper transport route

AL-1551 COPY PROCESS 6-1

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.

About

DC5.5KV

( 580V/ 400V)

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 sfter the exposure

OPC layer Pigment layer

Aluminum

layer

Non-image area Image area

AL-1551 COPY PROCESS 6-2

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)

N

S

N

MG roller

DC

400V 8V

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

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.

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

AL-1551 COPY PROCESS 6-3

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 elimate 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.

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

0

Print potentioal

 

Toner attract

Developing bias

 

potential

 

 

 

2)

 

 

3)

 

1)

Low

 

4) High

 

Drum potential

 

 

 

 

 

 

Time

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. Therfore, carrier will not make a deposit on the drum surface.

AL-1551 COPY PROCESS 6-4

[7] OPERATIONAL DESCRIPTIONS

1. Outline of operation

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

(Basic configuration)

Scanner section

CCD

PC

Operation

section

MCU (Main control/image process section)

PCL control

PCL I / F

LSU (Laser unit)

Laser diode, Polygon mirror lens

Laser beam

Paper exit

Fusing section

Process section

Printer section

Paper transport section

 

 

Manual paper

Cassette paper

 

feed section

 

feed section

 

 

 

(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.

AL-1551 OPERATIONAL DESCRIPTIONS 7-1

2. Scanner section

A. How to scan documents

The scanner has sensors that are arranged in a line. These sensors scan a certain area of a document at a time and deliver outputs sequentially. When the line is finished, the next line is scanned, and this procedure is repeated.

The figure below shows the case where the latter two sections of an image which are scanned are shown with solid lines and the former two sections which are being transmitted are shown with dotted lines.

The direction of this line is called "main scanning direction," and the scanning direction "sub scanning direction."

In the figure below, one line is divided into 4 sections. Actually, however, one line is divided into thousands of sections. For scanning, the light receiving element called CCD is used.

The basic resolution indicates the scanner capacity. The basic resolution is expressed in dpi (dot/inch) which shows the number of light emitting elements per inch on the document.

The basic resolution of this machine is 400dpi.

In the sub scanning direction, at the same time, the motor that drives the optical system is controlled to scan the image at the basic resolution.

Sub scanning direction

Sensor scanning area

Main scanning direction

Original

1

2

3

4

5

Image data sent to the ICU PWB

5

4

3

2

1

To MCU PWB

B. Basic structure of scanner section

(11)

(4)

(1)

(2)

(8)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5) (7) (3) (6) (9) (10)

1

Copy lamp (Xenon lamp)

2

Reflector

 

 

 

(light conversion plate)

3

No. 1 mirror

4

No. 2 mirror

5

No. 3 mirror

6

Lens

7

No. 2/3 mirror unit

8

Copy lamp unit

9

CCD

10

Mirror motor

11

MHPS

 

 

 

(Mirror home position sensor)

 

 

The scanner unit performs scanning in the digital optical system.

The light from the light source (Xenon lamp) is reflected by a document and passed through three mirrors and reduction lenses to the CCD element (image sensor) where images are formed. This system is known as the reduction image sensor system. Photo energy on the CCD element is converted into electrical signals (analog signals). (Photoelectric conversion). The output signals (analog signals) are converted into digital signals (A/D conversion) and passed to the MCU (main control/image process section). The resolution at that time is 400dpi.

The mirror unit in the scanner section is driven by the mirror motor.

The MHPS is provided to detect the home position of the copy lamp unit.

AL-1551 OPERATIONAL DESCRIPTIONS 7-2

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 BF PWB works for measurement of the laser writing start point.

(3)

(2)

(1)

(4)

(5)

 

 

: Laser beam

 

 

path for BF PWB

 

 

 

No

Component

Function

 

 

 

(1)

Semiconductor laser

Generates laser beams.

 

 

 

(2)

Collimator lens

Converges laser beams in parallel.

 

 

 

(3)

Polygon mirror,

Reflects laser beams at a constant rpm.

 

polygon motor

 

 

 

 

(4)

BD (Mirror, lens, PWB)

Detects start timing of laser scanning.

 

 

 

(5)

fθ lens

Converges laser beams at a spot on the

 

 

drum.

 

 

 

 

 

Makes the laser scanning speeds at both

 

 

ends of the drum same as each other.

 

 

(Refer to the figure below.)

 

 

 

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

 

 

a b c

 

 

 

 

 

d = e = f

 

 

 

 

 

 

 

 

 

 

 

a b c

 

 

 

d e f

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fθ LENS

B. Laser beam path

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:0.20 ±0.03mW (Laser wavelength 780 - 795nm) Polygon motor section:Brushless motor 20.787rpm

No. of mirror surfaces:6 surfaces

4. Fuser section

AL-1551 OPERATIONAL DESCRIPTIONS 7-3

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