Epson Perfection 1670 Photo Bedienungsanleitung

EPSON Perfection1670Photo

Perfection1270

Color Image Scanner

Service Manual

SESC03-002

Notice

photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

All effort have been 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 contents of this manual are subject to change without notice.

The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Imaging & Information Product Division

IMAGING & INFORMATION CS QUALITY MANAGEMENT & PL DEPARTMENT

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 performing 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 performing repair/maintenance procedures.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

2. 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.

3. 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 EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON

PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT

BOARDS AND/OR INDIVIDUAL CHIPS.

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

ACCESSING INTERNAL COMPONENTS.

5. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR

OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE

WARRANTY OFFERED BY EPSON.

About This Manual

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. The instructions and procedures included

herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.

Manual Configuration

This manual consists of four chapters and Appendix.

CHAPTER 1.TROUBLESHOOTING

Describes the step-by-step procedures for the troubleshooting.

CHAPTER 2.DISASSEMBLY/ASSEMBLY

Describes the step-by-step procedures for disassembling and

assembling the product.

CHAPTER 3.ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 4.MAINTENANCE

Provides preventive maintenance procedures and the lists of

Epson-approved lubricants and adhesives required for servicing

the product.

APPENDIX Provides the following additional information for reference:

• Connector pin assignments

• Electric circuit boards components layout

• Electrical circuit boards schematics

• Exploded diagram

• Parts List

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional

information on a specific topic or to warn of possible danger present during a

procedure or an action. Be aware of all symbols when they are used, and

always read NOTE, CAUTION, or WARNING messages.

Indicates an operating or maintenance procedure, practice

or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure,

practice, or condition that, if not strictly observed, could

result in damage to, or destruction of, equipment.

May indicate an operating or maintenance procedure,

practice orcondition that is necessary to accomplish a task

efficiently. It may also provide additional information that is

related to a specific subject, or comment on the results

achieved through a previous action.

Indicates an operating or maintenance procedure, practice

or condition that, if not strictly observed, could result in

injury or loss of life.

Indicates a product reassembly procedure, practice or

condition that must be executed in accordance with the

specified standards to keep the product's quality.

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

CHECK

P O I N T

W ARNING

Revision Status

Revision Date of Issue Description

A June 23, 2003 First release

B April 18, 2005 Model addition (Perfection 1270)

Circuit diagram addition

EPSON Perfection 1670 Photo/Perfection 1270 Revision B

Contents

Chapter 1 TROUBLESHOOTING

1.1 Overview ............................................................................................................... 8

1.2 Self-diagnostic Function........................................................................................ 8

1.3 Troubleshooting..................................................................................................... 9

Chapter 2 DISASSEMBLY/ASSEMBLY

2.1 Overview ............................................................................................................. 12

2.1.1 Precautions.................................................................................................. 12

2.1.2 Used Tools.................................................................................................. 12

2.1.3 Screws Used in Disassembly and Reassembly........................................... 13

2.2 Disassembly Procedure ....................................................................................... 14

2.2.1 Removal of TPU Unit................................................................................. 15

2.2.2 Removal of Upper Housing........................................................................ 16

2.2.3 Removal of I/F Board................................................................................. 18

2.2.4 Removal of Carriage Unit........................................................................... 19

2.2.5 Removal of CR Motor ................................................................................ 23

2.2.6 Removal of Panel Board............................................................................. 24

2.2.7 Removal of Pulley Set and Pressure Spring............................................... 25

2.2.8 Removal of TPU Inverter Board................................................................. 26

2.2.9 Removal of Hinge Holders......................................................................... 28

Chapter 3 ADJUSTMENT

Chapter 4 MAINTENANCE

4.1 Overview ............................................................................................................. 32

4.1.1 Cleaning...................................................................................................... 32

4.1.2 Lubrication.................................................................................................. 32

Chapter 5 APPENDIX

5.1 Overview............................................................................................................. 34

5.1.1 Scanner Connection Diagram..................................................................... 34

5.1.2 Connector Connection Table...................................................................... 34

5.1.3 Connector Wiring Table............................................................................. 35

5.2 Circuit Diagrams ................................................................................................. 37

5.3 Parts List, Exploded diagram .............................................................................. 46

CHAPTER

TROUBLESHOOTING

EPSON Perfection 1670 Photo/Perfection 1270 Revision B

TROUBLESHOOTING Overview 8

1.1 Overview

This chapter explains the troubleshooting of this product.

1.2 Self-diagnostic Function

With the self-diagnostic function, the scanner self-checks the operating status of each

component, and if any error is detected, displays its definition, as indicated in Table

1-1, with the LED of the Start button.

Table 1-1. Self-diagnosis Display

LED Error Definition (Cause, Action)

Red LED ON Fatal error

Cause: The Lamp is dead.

The Carriage does not return to the home position.

The Main Unit is faulty.

Action: Switch power OFF to stop operation.

Recover: After eliminating the error cause:

Switch power ON again.

Send the initialization command (ESC @).

Disconnect and connect the USB connector.

Receivable command: [ESC F, ESC f, ESC @]

EPSON Perfection 1670 Photo/Perfection 1270 Revision B

TROUBLESHOOTING Troubleshooting 9

1.3 Troubleshooting

This section explains troubleshooting from the viewpoint of superficial phenomena.

Here, problems are classified on a unit level according to the superficial phenomena at

their occurrence. Referring to Table 1-2, find out the corresponding phenomenon and

check according to the corresponding reference table.

Table 1-2. Trouble Phenomena and Reference Tables

Table 1-3. Image Cannot Be Read Neatly

Table 1-4. If Power Is Switched ON, the Host Does Not Recognize the Scanner

Phenomenon Definition Reference

Table

The image cannot be read neatly. The image cannot be read neatly. 1-3

A "communication error" occurred.

When communication with the Host

is made again after occurrence of the

above error, a "communication

error" occurs.

If power is switched ON, the Host

does not recognize the scanner. 1-4

If power is switched ON, the Main

Unit does not operate. The Main Unit does not perform

initialization operation. 1-5

A "fatal error" occurred.

If power is switched ON again after

occurrence of the above error, power

is not restored.

The Carriage Unit does not operate. 1-6

The Carriage Unit operates but the

error is displayed. 1-7

The Fluorescent Lamp does not turn

ON. 1-8

The optional TPU does not operate. The optional TPU does not operate. 1-9

Step Cause Check Point Judgment Action

Dirt has adhered to

the Document Glass.

(White spots appear

in the image.)

Has dirt adhered to the

Document Glass? Yes

Remove the dirt.

(Refer to "Chapter 4

Maintenance".)

The Mirrors in the

Carriage Unit are

dirty.

(Vertical streaks

appear in the image.)

Has dirt adhered to the

Mirror section? Yes

Remove the dirt.

(Blow away the dirt

with air.)

3The I/F Board is

faulty. -- -- Replace the I/F Board.

4The CCD Sensor

Board is faulty. -- -- Replace the Carriage

Unit.

Step Cause Check Point Judgment Action

The Host does not

support USB. After choosing "My

Computer" -

"Properties" - "Device

Manager" on Windows,

is "Universal Serial Bus

Controller" valid?

Replace the Host.

The TWAIN Driver

supplied with the

scanner has not been

installed properly.

Has TWAIN Driver

supplied with the

scanner been installed

properly?

Install (or reinstall) the

correct TWAIN Driver.

3The USB Cable is

faulty. Is there no error after

replacement of the

USB Cable? Yes Replace the USB Cable.

4The I/F Board is

faulty. -- -- Replace the I/F Board.

EPSON Perfection 1670 Photo/Perfection 1270 Revision B

TROUBLESHOOTING Troubleshooting 10

Table 1-5. The Main Unit Does Not Perform Initialization Operation

Table 1-6. The Carriage Unit Does Not Operate

Table 1-7. The Carriage Operates but the Error Is Displayed

Table 1-8. The Fluorescent Lamp Does Not Turn ON

Table 1-9. The Optional TPU Does Not Operate

Step Cause Check Point Judgment Action

Any connector has

come off. Check all connectors.

If there any

disconnected

connector?

Yes Connect the

disconnected connector.

No Replace the I/F Board.

Step Cause Check Point Judgment Action

1Any connector on the

I/F Board has come

off.

Has any connector on

the I/F Board come

off? Yes Connect the connector.

The Carriage

Movement

Mechanism is

defective.

•Does the CR Motor

operate when power

is switched ON with

the Upper Housing

of the scanner

removed?

•Does the Carriage

Unit move smoothly

with the CR Motor

removed?

Check the Carriage

Movement Mechanism,

and replace the

corresponding part or

disassemble and

reassemble the

Mechanism.

The CR Motor is

defective. Disconnect the

connector on the I/F

Board, and using a

multimeter, measure

the coil resistances

between pins 2 and 4

and between pins 1 and

3 on the Motor side.

Are the resistances at

the two points

approximately 4.8Ω?

Replace the CR Motor.

4The I/F Board is

faulty. --- -- Replace the I/F Board.

Step Cause Check Point Judgment Action

1The I/F Board is

faulty. --- -- Replace the I/F Board.

Step Cause Check Point Judgment Action

1The connector on the

CCD Board has come

off.

Has the connector on

the CCD Board come

off? Yes Replace the Carriage

Unit.

The Fluorescent

Lamp is not

connected securely to

the connector on the

Inverter Board.

Is the Fluorescent

Lamp connected

securelyontheInverter

Board? No

Replace the Carriage

Unit.

3Replace the Carriage

Unit. Is there no error after

replacement of the

Carriage Unit? Yes Replace the Carriage

Unit.

4The Main Unit I/F

Board is faulty. Is there no error after

replacement of the

Carriage Unit? Yes Replace the Carriage

Unit.

Step Cause Check Point Judgment Action

1The Cable of the

optional TPU Unit

has come off.

Has the Connector

CN1 of the I/F Board

come off? Yes Connect the Connector

CN1 of the I/F Board.

2The Main Unit I/F

Board is faulty. -- -- Replace the I/F Board.

The TPU Inverter

Board is faulty. +24V line: Lamp,

Motor

+5V line: Sensor,

Logic Circuit

Replace the optional

TPU Unit.

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