Epson B81306 series Service Manual

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Page 1

TRANSPARENCY UNIT

B81306*

FOR EPSON IMAGE SCANNER

SERVICE MANUAL

EPSON

Page 2

NOTICE

The

contents

of this manual are subjects to change without notice.

Alleffortshavebeen made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.

The

above notwithstanding SEIKO

EPSON can assume no responsibility for any errors in this

manual or the consequence

thereof.

Epson is registered trad

emark of Seiko Epson Corporation.

General Notice:

Otherproductnames

used herein are

foridentication

purposes only and maybe

trademarks of their respective

campanies.

by SEIKO EPSON CORPORATION Nagano, Japan

.,’

Page 3

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment.

DANGER

Signals a precaution which, if ignored, could result in serious or fatal personal injury.

Great caution should be exercised in perfo

rming

procedures preceded by DANGER

Headings.

WARNING

Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performin

g repair/

maintenance procedures.

DANGER

ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND

PEIUPHERALDEVICES

PERFORMING ANY

MAINTENANCE OR REPAIR PROCEDURE.

NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY

MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN

THEIR LINE OF WORK.

WHEN PERFORMING TESTING AS DICTATED

WITHIN THIS MANUAL, DO NOT

CONNECT THE UNIT TO A POWER SOURCE UNTIL

INSTRUCTED TO DO SO. WHEN

THE POWER SUPPLY CABLE MUST BE CONNECTED, USE E

XTREME

CAUTION IN

WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING

REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON

CER-

REPAIR TECHNICIAN.

MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLT-

AGE, LISTED ON

T’HE

SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT

HAS A P

RIMARY

AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO

NOT CONNECT IT TO THE POWER SOURCE.

ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY

THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE

ICSOROTHER

NONAP-

PROVED COMPONENTS

MAY

DAMAGE THE PRODUCT AND VOID ANY APPLICA-

BLE EPSON WARRANTY.

-ii-

Page 4

PREFACE

This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of B813061/B813062 Transparency Unit. The instructions and procedures included herein are intended for the experience repair technician, and attention should be given totheprecautions ontheprecedingpage. The chapters areorganized as follows:

CHAPTER 1. PRODUCT DESCRIPTION

Provides a general product overview, lists specifications, and illustrates the main components of the printer.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of transparency unit operation.

CHAPTER 3. DISASSEMBLY AND ASSEMBLY

Includes a step-by-step guide for product disassembly and assembly.

CHAPTER 4. ADJUSTMENTS

This transparency unit is not needed any adjustment.

CHAPTER 5. TROUBLESHOOTING

Provides Epson-approved techniques for service.

CHAPTER 6. MAINTENANCE

Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.

APPENDIX

Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.

The contents of this manual are subject to change without notice.

-iv-

Page 5

REVISION SHEET

Revision

Issue Date Revision Page

Rev.

November 28,1994

Ist issue

. .

,,. .

-v-

Page 6

TABLE OF CONTENTS

CHAPTER 1.

PRODUCT DESCRIPTION

CHAPTER 2.

OPERATING PRINCIPLES

CHAPTER 3.

DISASSEMBLY AND ASSEMBLY

CHAPTER 4.

ADJUSTMENTS

CHAPTER 5.

TROUBLESHOOTING

CHAPTER 6.

MAINTENANCE

APPENDIX

-vi-

Page 7

CHAPTER 1

Product

Description

Table of Contents

1.1

FEATURES

1-1

1.2 SPECIFICATIONS

1-1

1.3 MAIN COMPONENTS

1-1

Figure 1-1.

List of Figures

Exterior View of the Transparency. . . . . . . . . . . . . . . . . . . . . .. ....1-1

Page 8

B81306* Service Manual

Product Description

1.1 FEATURES

This transparency unit is a high-quality device developed to enable EPSON Scanner owners to scan wide

size(up

to A4 or Letter size) transparency, slides and films in color or monochrome.

Figure 1-1. Exterior View of the transparency unit

1.2

SPECIFICATIONS

arming method Color separation Sub-scanning resolution Light Source D

ocument type

arming

size

Environment conditions

Power consumption

Reliability Dimensions

: Light source movement : By light Source (green,red,blue) :

Max.800PDI

: Noble gas cold cathord-ray tube

: Transparency documents (including slide film) in color or

monochrome

: Up to 216mm X 297mm (8.5” X 11.7”)

Temperature Operating 5 to 35 degrees C(41 to95 degrees F)

Storage

-20 to 60 degrees C(-4 to 140 degrees

Humidity Operating

10t080%nocondensation

Storage

10 to 85

!4.

+24V

Max.500mA

+5V

Max.100mA

: MCBF 100,000 cycles : 324mm X

540mm

x84mm

1.3

MAIN COMPONENTS

The main components are;

Mechanism Unit

BOARD

ASSY.,

MAIN: Control board

Invertor Circuit

Housing

Rev.A

1-1

Page 9

CHAPTER 2 Operating Principles

Table of Contents

2.1 TRANSPARENCY MECHANISM OPERATION

2-1

2.1.1 Carriage Movement Mechanism. . . . . . . . . . . . . . . . . . . . . . . . .........2-1

2.2 CONTROL CIRCUIT

2-2

2.2.1 Circuit Operation Overview. . . . . . . . . . . . . . . . . . . . . . ...............2-2

List of Figures

Figure 2-1. The Carriage Movement Mechanism. . . . . . . . . . . . . . . . . . . . . .. ..2-1

Figure 2-2. Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . ...............2-2

Page 10

B81306*

SeMce

“

Manual

Operating

Principle

2.1

TRANSPARENCY MECHANISM OPERATION

This

section describe

the transparency mechanism and explains it works.

2.1.1 Carriage Movement Mechanism

The

transp

arency method is the carriage of light

source movement method. The carriage

movement mechanism consists of lamp carriage assembly, carriage motor assembly, gear/lead screw, roller and carnage home position

sensor. Figure 2-1 shows the carriage movement

mechanism. The carriage motor assembly drives the gear/lead screw. The

mrriagemot

or=sembly~ mounted

on the

lamp carriage assembly. The lead screw is

connected to

the

housing. When the carriage motor turns the gear, the carriage move the forward or backward in the housing smoothly via lead screw. The

carriage movement synchronizes

with the scanner head movement.

The carriage home position

sensor informs the CPU of scanner the carriage home position. The

sensor is photo-coupler type. The striker on the carriage active the

sensor to indicate the carriage

home position.

Carriage Home Position Sensor

Combination Gear

-.,

Carriage

‘Roller

Figure 2-1. The Carriage Movement Mechanism

Assembly

Rev.A

2-1

Page 11

Operating Principle

B81308* Service Manual

2.2

CONTROL CIRCUIT

This section describes the main components and explains how the board work.

2.2.1 Circuit Operation Overview

The control circuit consists of the main control circuit board and the

invertor

circuit board. The

main circuit board drives

the

carriage motor.

‘Ihe invertor

drives the light source of 3 colors

(green,red,blue)

noble

gascathord-ray

tube only. Thiscircuitis needed

+5VDC(forlogic)

and

+24VDC(for

Jnvertor and carriage motor). These power are supplied by the scanner via connector

CN1.

. . . . . . . . . . . . . . . . . . . . . . .

(

BOARD ASSY.,MAIN

Home Position Sensor

Cover

Open

Sensor

. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2-2. Circuit Block Diagram

2-2

Rev.A

Page 12

CHAPTER 3 Disassembly and Assembly

Table of Contents

3.1 OVERVIEW

3-1

3.1.1 Disassembly Precautions. . . . . . . . . . . . . . . . . . . . . . . . ..............3-1

3.1.2

ToOIS.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............3-1

3.1.3 Service ChecksAfterRepair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-2

3.1.4 Specificationsfor Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ...3-2

3.2 DISASSEMBLY AND ASSEMBLY

3-3

3.2.1

3.2.2

3.2.3

3.2.4

Removing the HOUSING, LOWER. . . . . . . . . . . . . . . . . . . . . . .........3-4

Removing the CARRIAGE

ASSY.

. . . . . . . . . . . . . . . . . . . . . ..........3-5

Removing the BOARD

ASSY.,MAIN

. . . . . . . . . . . . . . . . . . . . . ........3-6

Disassembly CARRIAGE

ASSY.

. . . . . . . . . . . . . . . . . . . . . ...........3-7

3.2.4.1 Removing the CARRIAGE MOTOR . . . . . . . . . . . . . . . . . . . . .. .3-7

3.2.4.2 Removing the BOARD

ASSY.,INVERTOR . . . . ..............3-8

3.2.4.3 Removing the COMBINATION

GEAR,22.6,69.3. . ............3-9

List of Figures

Figure 3-1. Procedure for Disassembling the Printer. . . . . . . . . . . . . . . . . . . . . .3-3

Figure 3-2. Removing the HOUSING, LOWER. . . . . . . . . . . . . . . . . . . . . .. ....3-4

Figure 3-3. Removing the CARRIAGE

ASSY.

. . . . . . . . . . . . . . . . . . . . . .. ....3-5

Figure 3-4. Putting

CABLE,CR on the

FRAME,COVER

. ..................3-5

Figure 3-5. Removing the BOARD

ASSY.,MAIN. . . . . . . . . . . . . . . . . . . . . .. ..3-6

Figure 3-6. Removing the CARRIAGE MOTOR . . . . . . . . . . . . . . . . . . . . .. ...3-7

Figure 3-7. Assembling the CARRIAGE MOTOR . . . . . . . . . . . . . . . . . . . . .. ..3-7

Figure 3-8. Removing the BOARD

ASSY.,INVERTOR

. . . . . . . . . . . . . . . . . . . . 3-8

Figure 3-9. Removing the COMBINATION GEAR,22.6,69.3. . ..............3-9

List of

Tables

Table 3-1. Recommended Tools . . . . . . . . . . . . . . . . . . . . . ................3-1

Table 3-2. Equipment Required for Maintenance . . . . . . . . . . . . . . . . . . . . .. ..3-1

Table 3-3. Inspection Check list for Repaired Printer. . . . . . . . . . . . . . . . . . . . . .3-2

Table 3-4. Screw Abbreviations. . . . . . . . . . . . . . . . . . . . . . . ...............3-2

Page 13

U1306*

Service Manual

Disassembly and Assembly

OVERVIEW

This

section describes various points to note when disassembling and assembling the transparency

unit.

3.1.1 Disassembly Precautions

Follow the precautions below when disassembling the transparency unit.

CJ2

.,: ,

,,,

.-+

(-)

Before

dkassem

bling

or assembling the transparency unit,

discomect

the power supply cable of scanner from the AC power socket and remove it from scanner. Failure to do can cause personal injury.

maintain efficient transparency unit.

operatiom

. Use only the recommended tools for maintenance

e work.

. Use only the recommended lubricants and adhesives (see Chapter 6).

3.1.2

TOOIS

Tables 3-1 and 3-2 list the tools recommended for &assemb

Iing, assembling

or adjusting the

transparency unit. Use only tools that meet these specifications.

Note:

Table 3-1. Recommended Tools

Tool

Part No.

Round-nose pliers

B740400100

Nicmers

B7405OO1OO

Tweezem

B741OOO1OO

Soldering iron

B7402OO1OO

Phillips screwdriver No.2

B743800200

Normal screwdriver

B743OOO1OO

All

tools

are commercially available.

Table 3-2. Equipment Required for Maintenance

Description

Specification

Multimeter

—

Oscilloscme

50 MHz

An oscilloscope is required only

for

sewicers

who repair to the component level.

Rev.A

3-1

Page 14

Disassemble and

Assemblv

B81308*

Service Manual

3.1.3 Service Checks After Repair

Before returning the transparency unit after service, use the checklist in Table 3-3, which provides a record to make

~ervicing &d

shipping more efficient.

Table 3-3. Inspection Check list for Repaired Printer

Component

Item to Check

Is Check Required?

Does the carriage move smoothly?

❑

Movement noisy ❑ Mechanism

dirty

❑

Checked ❑ Not necessary

Carriage mechanism

❑

Mechanism oily

Is the CARRIAGE MOTOR at the

❑

Checked ❑ Not necessary

correct temperature (not overheating)

Glass Side

Is the surface of the Glass stain?

❑

Checked ❑ Not

necessaty

On-1ine test

Was the on-line test successful?

❑

Checked ❑ Not necessay

3.1.4 Specifications for Screws

Table 3-4 lists the abbreviations used in the following sections for small parts, such as screws and washers.

Table 3-4. Screw Abbreviations

Abbreviation

Part

Name

CBB

Cross-recessed bind head B-tight screw

CBS

Cross-recessed bind head S-tight screw

3-2

Rev.A

Page 15

Diaaasembly

and

Assembty

3.2 DISASSEMBLY AND ASSEMBLY

This section describes the procedures for disassembling and assembling the main components of the transparency unit. When the procedure for installing a component is simply the reverse of the

procedure for removing the component, no description of the installation is given. Any

pornts

special concern follow the description of the procedure.

‘,: . .

. . .

. Before

dkssemb

Iing

any part of the transparency unit, note the

wamin

gs in Section 3.1.

. Before

dkssemb

Iing

any part of the transparency unit, remove the paper.

Disassembly includes the

fo~ovving

4 procedures:

1. Rernovingthe HOUSING,LOWER

2 Removing the

CARRIAGE

ASSY

3. Removing the BOARD

ASSY.J4AIN

Dkssembkg the

CARRIAGE

ASSY.

Refer to the

diagrams in the appendix

to see how components fit together.

3.21

RerIKJving

TRAY

COVEll

Removina CAStNH

SUS-ASSY.

Ii%’g$v’+

liiii&SY.,MNN]

l-%?%%%,

3.25

Removing

+’-”

32-6

3.213

3.214

3215

Refnc4ingoPncAL

Rmov@JPOWER

lwnovhglNvERTER

FRAME SUS-ASSY.

SOCIWTASSY.

Figure 3-1. Procedure for Disassembling the Unit

,,:,

Rev.A

3-3

Page 16

Disassembly and Assembly

B81306* Service Manual

3.2.1 Removing the HOUSING, LOWER

Remove the 4 CBB (M4x 10) screws and 2 CBS (M3 x 8) attaching the

HOUSING,LOWER

HOUSING,UPPER.

2. Remove the

HOUSING,LOWER.

CBB(M4X1O)

CBS(M3X8)

Figure 3-2. Removing the HOUSING, LOWER

3-4

Rev.A

Page 17

B61306*

Service Manual

D&asemMy

and Assembly

.“.

’.7.

3.2.2 Removing the CARRIAGE

ASSY.

1. Removing the

HOUSING,LOWER.

(see Section 3.21)

2. Remove the

CABLE,CR

attaching to the FRAME

COVER of

HOUSING,UPPER

3. Remove

the

CBB (M4

12)

screws attaching the

HOLDEF&UW1’

FRONT and REAR of

the

CARRIAGE

ASSY.

to the

HOUSING,UPPER

4. Liftoff the CARRIAGE

ASSY.

with

HOLDEW-IAFT

FRONT and REAR

,CBB(M4X12)

Adhesive Tapes

Figure 3-3. Removing the CARRIAGE

ASSY.

The

CABLE,CR

must be put on the FRAME

COVER straightly

from

the

connector

(CN4).

(see

fig3-4.)

2. The

CABLE,CR

must not be gotten tight while

CARRIAGE

ASSY.

moving from front to

rear.

CN4

FRAME, COVER

CABLE,CR

Figure 3-4. Putting CABLE,CR on the FRAME, COVER

Rev.A

3-5

Page 18

Disassembly and Assembly

B81308*

Service Manual

3.2.3 Removing the BOARD

ASSY.,MAIN

1. Removing the HOUSING,LOWER. (see Section 3.2.1)

2. Removing the CARRIAGE

ASSY.

(see Section 3.2.2)

3. Remove

the4CBB (M4

12)

screws attaching the HOLDER

ASSY.

HOUSING,UPPER. And

remove the HOLDER

ASSY.

4. Remove

the CBB (M3

x 8)

and

CBB (M4

x 10) screws attaching the

FRAME,COVER

HOUSING,UPPER.

And remove the

FRAME,COVER.

5. Disconnect

theconnectOrs CNl,CN2

and CN3fromthe BOARD

ASSY.,MAIN.

6. Remove the 2

CBB (M3

x 10)

screws

attaching the BOARD

ASSY.,MA~

HOUSING,UPPER.

And remove the BOARD

ASSY.JVIAIN.

CBB(M4X1O)

II’”+?

CBB(M4X1O)

FRAME, COVER

CBS(M3X8)

BS(M3X8)

HOLDER

AssY.

“w-m a-

.-”

‘

RnARIT

AQ!2y.,vlAIN

Figure 3-5. Removing the BOARD

ASSY.,MAIN

Page 19

BS1306* Sarvice

Manual

Disaaaembly

and Assembly

3.2.4 Disassembly the

CARRIAGE ASSY.

3.2.4.1 Removing the CARRIAGE MOTOR

,.-.

(j’

Removing the

HOUSING,LOWER.

(see Section 3.2.1)

Removing the

CARRIAGE

ASSY.

(see Section 3.2.2)

Release the wire harness of the CARRJA

GE MOTOR from the hook of the

FRAME

ASSY.,BASE.

Remove the 2 CBS

(IU3

x 6) screws attaching the

C.ARRL4GE

MOTOR to FMME

ASSY.,BASE.

And remove the MOTOR.

/T-)

?’

Wire Harness

CARRIAG

FRAME

ASSY.,BASE

Figure 3-6. Removing the CARRIAGE MOTOR

Rotate

the

MOTOR clockwise

until the stopper on the FRAME

ASSY.,BASE

and

tight

screws.

Figure 3-7.Assemoving the CARRIAGE MOTOR

Rev.A

3-7

Page 20

Disassembly and Assembly

B61306*

Service Manual

3.2.4.2 Removing the BOARD

ASSY.,INVERTOR

Remove the CARRIAGE

ASSY.

(see %&on 3.2.2)

2. Removing the 2 CBS

(M3

x6) screws attaching the

COVER,CRto FR4ME ASSY.,BASE

and

remove

COVER,CR.

3. Disconnect the

comector

of LAMP

ASSY.

from the BOARD

ASSY.,INVERTOR

and remove

LAMP

ASSY.

Disconnect the comectorof CARRIAGE MOTOR from the BOARD

ASSY.,INVERTOR

and

remove it.

5. Removing the 2 CBS

(M3

x 6) screws attaching the BOARD

ASSY.,INVERTOR

to the FRAME

ASSY.,BASE

and remove BOARD

ASSY.,INVERTOR.

COVER,CR

CBS(M3X6)

LAMP

ASSY.

‘ie=7\l

,FRAME ASSY.,BASE

I./

ASSY.,INVERTOR

Figure 3-8. Removing the BOARD

ASSY.,INVERTOR

Page 21

B81 306” Service Manual

Disassembly and Assembly

3.2.4.3 Removing the COMBINATION GEAR,22.2,69.3

Remove the CARRIAGE

ASSY.

(see Section 3.2.2)

Removing the

HOLDER,SHAFT,FRONT

from

SHAFT,CR,GUIDE,

and pull off the

SHAIT,CR,GUIDE

from CARRIAGE

ASSY

backward gently.

Removing the

COVER,CR.

(see Section 3.2.4.2)

Disconnect the connector of LAMP

ASSY.

from the BOARD ASSY.,INVERTOR and remove

LAMP

ASSY.

Removing the 4 CBS (M3 x 6) screws from 2

HOLDER,SLIDERS,

and remove the

HOLDER,SLIDERS.

Remove the

SLIDER,CR

Remove the 5mm Type-E retaining ring from the shaft of

FW4ME ASSY,BASE

and put off the

COMBINATION

GE-~,22.2,69.3

with a plain washer

Do not put the 5mrn Type-E retaining ring to the SHAFT by E-ring holder, but by a round-nose pliers.

Figure 3-9. Removing the COMBINATION GEAR

Page 22

CHAPTER 4 Adjustments

The transparency unit is not need any adjustment.

Page 23

CHAPTER 5 Troubleshooting

Table of Contents

5.1 TROUBLESHOOTING

5-1

List of Table

Table 5-1. Symptom and Problem in Scanner Indicator . ..................5-1

Table 5-2. Scanner indicates no error but no image data.. . ................5-1

Page 24

B81306* Service Manual

Traubleshooting

5.1

TROUBLESHOOTING

defect that indicated in

~canner indica~or.

you can easily identify what the problem.

When a trouble occurs,

YOU

can

distinwish

the defective unit by referring the symptoms of the

The table below lists the symptom of certain defects, and

Table 5-1. Symptom and Problem in Scanner Indicator

Symptom Problem Cause

Cover open

. Transparency Cover is open. . Cover Open Sensor is defective.

Option Error

. Lamp Carriage Mechanism is

defective.

Carriage error

. Carriage Home Position Sensor is defective. . Carriage Motor is defective.

Table 5-2. Scanner indicates no error but no image data.

Cause

Checkpoint

Solution

CN1

Check the connection between

CN1

disconnected

and Scanner.

Connect them correctly.

Lamp is

defective

Check the lighting of Lamp.

Replace the Lamp.

Table 5-3. Sensor Status

Sensor

Point

Signal Level

Status

High(5V)

Cover Close

Cover Open Sensor

Pinl,2 of

CN3

Low(GND)

Cover Open

Carriage Home

High(5V)

At Home Position

Position Sensor

Pinl ,GND

CN2

Low(GND)

Out of home Position

Table 5-4. Motor

Motor

Resistance

Carriage Motor

5.3 Q* 10% (at250 C)

Rev.A

5-1

Page 25

CHAPTER 6 Maintenance

Table of Contents

6.1 PREVENTIVE MAINTENANCE

6-1

6.2 APPLYING LUBRICATION

6-1

List of Figures

Figure 6-1. Lubrication Points. . . . . . . . . . . . . . . . . . . . . . .................6-1

List of Tables

Table 6-1. Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..............6-1

Table 6-2. Lubrication Points . . . . . . . . . . . .............................6-1

Page 26

B81306* Service Manual

Maintenance

6.1 PREVENTIVE MAINTENANCE

Preventive maintenance includes regular cleaning of the case exterior (using denatured alcohol), as well as occasional vacuuming of the mechanism’s interior to remove dust and paper debris. After cleaning the unit, check that it is adequately lubricated (as described in Section 6.2, below). Before returning the transparency unit to the customer, inspect the screws and basic operation.

1. Disconnect the scanner from the external AC power source before performing maintenance.

2. Do not use thinner,

trichloroethylene,

or ketone-based solvents on the plastic components

of the transparency unit.

6.2 APPLYING LUBRICATION

EPSON recommends that the transparency unit be lubricated at the points illustrated in Figure 6-1. Table 6-2 lists each point along with its recommended lubricant. The recommended lubricants are G-42, it have been tested extensively and found to comply with the needs of this transparency unit.

(Table 6-1 provides details about these lubricants.) Before applying a lubricant, be sure that the

surface to be lubricated is clean. Do not apply too much lubricant, as this may damage nearby parts.

Table 6-1. Lubrication

Type

Name Quantity

Availability

Part No.

Grease

NPC Grease G-42

Table 6-2. Lubrication Points

Ref. No.

Lubrication Points

Lubricant

(1)

The 60-70 mm long area of SHAFT, CR, GUIDE (at a distance of approx. 60mm distance from rear end)

G-42

Note:

Lubrication must be applied during the reassembly process.

Figure 6-1. Lubrication Points

Rev.A

6-1

Page 27

Appendix

Table of Contents

A.1

CONNECTOR SUMMARY

A-1

A.2

CIRCUIT DIAGRAM

A-3

A.3

CIRCUIT BOARD COMPONENT LAYOUT

A-4

A.4

EXPLODED DIAGRAM

A-5

Figure A-1. Figure A-2. Figure A-3. Figure A-4.

Figure A-4.

List of Figures

Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B81306*

MAINCircuit

Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . .

B81306* MAIN Component Layout. . . . . . . . . . . . . . . . . . . . . . . . .

Exploded Exploded

Diagram Diagram

(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(2)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-1

A-3 A-4 A-5 A-6

List of Tables

Table A-1. Connector Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Table A-2. Connector Pin

Assignments–CNl

. . . . . . . . . . . . . . . . . . . . . . . . . A-1

Table A-3. Connector Pin

Assignments–CN2 . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Table A-4. Connector

PinAssignments -CN3 . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Table A-5. Connector Pin Assignments-CN4 . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Table A-6. Part No. Reference Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Page 28

B81306* SeMce

Manual

Appendix

A.1 CONNECTOR SUMMARY

Figure A-1 illustrates how the primary components are

comected.

Table A-1 summarizes the

functions and sizes of the connectors.

. -- . - . -------------,

;

SCANNER

;

.-. . . . . . . . . . . . . . . . .,

.,,

B81306* MAIN Board

~[carriage

Sensor I

Cover Open

Sensor!

CARRIAGE

ASSY.

k!e5!l

CARRIAGE MOTOR I

Figure A-1. Cable Connections

Table A-1. Connector Summary

Board

Connector

Function

Pins

CN1

Interface

BOARD

CN2

HP Sensor

ASSY.,

MAIN

CN3 Cover Open Sensor

CN4

LAMP, CARRIAGE MOTOR

Table

A-2. Connector Pin Assignments -

CN1

I/o

Signal

Narrw

Function

0 Oswl

Carriage Home Position Signal

OSW2

Cover Open Signal

Blue

Lamp Control

Green Lamp

Conttul

Red Lamp Control

+5V

+5VDC

7 -

GND

Ground

+24V +24VDC

T)(D

Transmitted Data

SCK

Option Clock

LOO

Option Control

SEL

Select

Signal

GND

Ground

GND

Ground

15 -

+24V

+24VDC

Rev.A

A-1

Page 29

Appendix

B81306*

Setvice

Manual

Table A-3. Connector

Pin Assignments - CN2

1/0

Signal Name Function

1 I

GND Ground

+5V +5VDC

Table A-4. Connector Pin Assignments –

CN3

1/0

Signal Name

Function

Cover Open Signal

GND

Ground

Table A-5. Connector Pin Assignments -

CN4

1/0

Signal Name

Function

+24 +24VDC

GND Ground

Green Lamp Control

Red Lamp Control

Blue Lamp Control

GND Ground

91-

]

GND

Ground

Carriage Motor Phase A

Carriage Motor Phase –A

Carriage Motor Phase B

Carriage Motor Phase –B

A-2

Rev.A

Page 30

B81306*

Service Manual

Appendix

A.2 CIRCUIT DIAGRAMS

%“47 ‘T’

‘!W

c’

..’

1111 11

——

It+t ii

All

III

I I I ‘1

111 I

IJJ_jJ_

I I

11111111

:“

...—%.

–0

i;;

Figure A-2. B81306* MAIN Circuit Diagram

A-3

Rev.A

Page 31

Appendix

B61306*

Service Manual

A.3 CIRCUIT BOARD COMPONENT LAYOUT

In .-l

Ii-l

KJKI

CHl

l?:

2015987 00

“E

Figure A-3. B81306* MAIN Component

Layout

A-4

Rev.A

Page 32

B81306* SeMce

Manual

Appendix

A.4 EXPLODED DIAGRAM

Figure A-4. Exploded Diagram (1)

Rev.A

A-5

Page 33

Appendix

B61306*

Service Manual

(’J

/“

t-------m

-7 /’

/’

‘\\

‘\

t-’R\\

‘

A ‘

.’

Figure A-5. Exploded Diagram (2)

A-6

Rev.A

Page 34

B81306* Service Manual

Appendix

Table A-6. Part No. Reference Table

Ref.N

Description

Ref. No.

Description

200

BOARD

ASSY.,MAIN

330

HARNESS

331 [ HARNESS

332

HARNESS

800 HOUSING, UPPER

801

COVER, HOUSING

802

SCALLOP

S.P.-A

803

FRAME,COVER

804

HOUSING, LOWER 805

GIASS

806

SHIELD

PLATE,FFC

807

FOOT

808

DOUBLE

SIDE TAPE

809

DOUBLE SIDE TAPE

810

HOLDER, SHAFT, FRONT

811

SHAFT,

CR,GUIDE

812

HOLDER, SHA~,REAR

813

SHIELD PLATE

814 I HOLDER

ASSY.

815 I S.THUMB SCREW

816

GUIDE, DOCUMENT B

817 I GUIDE, DOCUMENTA

818 MAT

819

CLAMP, CABLE

821

COVER,CR

822

PLATE,

SCAITER

823

FRAME ASSY.,BASE

824

SLIDER,CR

825

METAL

FllTINGS,SLIDER

826 COMBINATION GEAR

827

MOTOR 828

IAMP

ASSY.

829

BOARD ASSY.INVERTOR

830

CABLE,CR

831

FOOT,CR

832 ROLLER, CARRIAGE

833 SHAFT, ROLLER

834 DETECTOR, LEAF,B1

835

SENSOR,HP,B

836 DOUBLE SIDE TAPE

837 DOUBLE SIDE TAPE

840 C.B.S. SCREW, M3x6

841

RETAINING RING

842

PLAIN WASHER

843

RETAINING RING

844

C.B.B.

SCREW, M4x1O

845

C.B.B.

SCREW, M3xI0

846

C. B.

B.(P2)

SCREW, 4x12

847

CUP SCREW, M4x8

848

C.B.B.

SCREW, M4x12

849 C.B.S. SCREW, M3x8

850

C.F.F.

SCREW, 4x6

I I

Rev.A

A-7

Page 35

EPSON OVERSEAS MARKETING LOCATIONS

EPSON AMERICA, INC.

EPSON

DEUTSCHLAND GmbH

20770 Madrona Avenue,

Zulpicher Stra13e

6,4000 Dusseldorf 11

P.O.

BOX

2842

F.R. Gecmany

Torrance, CA 90509-2842

Phone: 0211-56030

Phone: (800) 922-8911

Fax: 0211-504-7787

Fax:

(310) 782-5220

EPSON UK LTD.

EPSON FRANCE

S.A.

Campus 100, Maylands Avenue,

68 bis, rue

Marjolin

92300,

Hemel Hempstead,

Herts.

Levallois-Perret, France

HP27EZ, U.K.

Phone: 1-4087-3737

Phone: 442-61144 Fax:

1-47-371510

Fax:

442-227227

EPSON

IBERICA, S.A.

EPSON

ITALIA S.p.A.

Avda.

de Roma, 18-26

Ili

Casiraghi, 427

08290

Cerdanyola

de] Vanes

20099

Sesto

S. Giovanni Ml, Italy Barcelona, Spain Phone: 02-262331 Phone: 582.15.00 Fax:

02-2440750

Fax:

582.15.55

EPSON AUSTRALIA

PTY.

LTD.

EPSON (SINGAPORE) PTE, LTD.

1/70

Gibbes

Street,

No. 1 Raffles Place #26-00

Chatswood 2067 NSW, Australia

OUB

Centre,

Singapore 0104

Phone: 02-415-9000 Phone: 5330477 Fax:

02-417-0077

Fax:

5338119

EPSON HONG

KONG LTD.

EPSON ELECTRONICS TRADING LTD.

20/F,

Harbour

Centre,

(TAIWAN BRANCH)

25 Harbour Road,

Wanchai,

10F,

No.287

Nanking E. Road, Sec. 3,

Hong Kong

Taipei, Taiwan,

R.O.C.

Phone: 585-4600 Phone: 2-717-7360 Fax:

827-4346

Fax:

2-712-9164

SEIKO EPSON CORPORATION

PRINTER DIVISION

80 Harashinden,

Hirooka Shiojiri-shi,

Nagano-ken, 399-07, JAPAN Phone: 0263-52-2552

Fax:

0263-54-4007

Telex: 3342-214

(SEPSON

As of January 1994