Epson 875DC Service manual

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SERVICE MANUAL

SERVICE MANUALSERVICE MANUAL

Color ink jet printer

EPSON Stylus PHOTO 875DC

SEIJ99015

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EPSON Stylus PHOTO 875DC Revision A

Notice:

All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

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

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 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.

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EPSON Stylus PHOTO 875DC Revision A

PRECAUTIONS

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

DANGER

WARNING

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

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.

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

DANGER

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

2. NOWORK 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.

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 ANTISTATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

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EPSON Stylus PHOTO 875DC Revision A

PREFACE

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus PHOTO 875DC. 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. The chapters are organized as follows:

CHAPTER 1. PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3. TROUBLESHOOTING

Provides the step-by-step procedures for troubleshooting.

CHAPTER 4. DISASSEMBLY AND ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling the product.

CHAPTER 5. ADJUSTMENTS

Provides Epson-approved methods for adjustment.

CHAPTER 6. 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:

• EEPROM Address Map

• Connector Pin Assignments

• Component Layout

• Exploded Diagrams

• Electrical Board Circuit Diagrams

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EPSON Stylus PHOTO 875DC Revision A

Revision Status

Revision Issued Date Description

A March 01, 2000 First Release

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EPSON Stylus PHOTO 875DC Revision A

Table of Contents

PRODUCT DESCRIPTIONS

Overview ....................................................................................................... 9

Features.................................................................................................... 9

Basic Specifications.................................................................................... 10

Basic Specifications for the Card Reader Part..................................... 10

Electric specifications............................................................................ 10

Reliability................................................................................................ 11

Environmental Condition...................................................................... 11

Interface....................................................................................................... 13

USB Interface ......................................................................................... 13

PCMCIA Card Slot.................................................................................. 14

Function....................................................................................................... 15

Card Reader Part Panel Operation ....................................................... 15

Card Reader Driver Function (Windows)............................................. 15

Drive form ......................................................................................... 15

Card information acquisition........................................................... 15

Drive name acquisition .................................................................... 15

Correspondence language .............................................................. 15

[Read Only mode] function ............................................................. 15

[Write to Disk mode] function ......................................................... 15

Switching to [Write to Disk mode] .................................................. 16

USB Descriptor change function..................................................... 16

Correspondence file system............................................................ 16

Card Reader Driver Function (Macintosh) ........................................... 16

Drive form ......................................................................................... 16

Card information acquisition........................................................... 16

Disk information acquisition ........................................................... 16

Drive information acquisition.......................................................... 16

Correspondence language .............................................................. 16

[Read Only mode] function ............................................................. 17

[Write to Disk mode] function ......................................................... 17

Switching to [Write to Disk mode] .................................................. 17

Media insertion / removal................................................................ 17

Media format .................................................................................... 18

Icon.................................................................................................... 18

Correspondence file system............................................................ 18

Display in the expansion manager ................................................. 18

Outer Case Specifications ......................................................................... 19

OPERATING PRINCIPLES

Overview ..................................................................................................... 21

Card Reader Part ................................................................................... 21

Power Supply Board ............................................................................. 23

USB Hub................................................................................................. 23

Overview ........................................................................................... 23

Hub Port Connection........................................................................ 23

Printer Circuit Operation ....................................................................... 24

TROUBLESHOOTING

Overview ..................................................................................................... 26

DISASSEMBLY AND ASSEMBLY

Overview ..................................................................................................... 28

Precaution for Disassembling the Printer............................................ 28

Tools....................................................................................................... 29

Specifications for Screws ..................................................................... 30

Service Checks After Repair ................................................................. 31

Disassembly Procedures............................................................................ 32

HOUSING Removal ............................................................................... 33

C364MAIN Board Removal ................................................................... 34

C364MAIN Board Unit Removal........................................................... 36

ADJUSTMENT

Overview ..................................................................................................... 38

Adjustment Items .................................................................................. 38

Tools....................................................................................................... 38

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Adjustment ................................................................................................. 39

Adjustment Using the Adjustment Program....................................... 39

About the Adjustment Program...................................................... 39

How to Install the Program.............................................................. 39

Starting the Service Program .......................................................... 40

USB ID Input .......................................................................................... 41

Memory Card Drive Firmware Uploading ........................................... 43

Copying the firmware to the PCMCIA Card ................................... 43

Uploading the Memory Card Driver Firmware .............................. 43

Checking for the Memory Card Drive Firmware Version.............. 44

MAINTENANCE

Overview ..................................................................................................... 46

APPENDIX

Connector Summary .................................................................................. 48

Circuit Board Component Layout ............................................................. 51

Exploded Diagrams .................................................................................... 55

Electrical Circuit Board Diagrams ............................................................. 61

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PRODUCT DESCRIPTIONS

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

1.1 Overview

The EPSON Stylus PHOTO 875DC, an easy and low cost photo printer, has the two parts: the built-in card reader part (storage driver) and Stylus PHOTO 870 base printer part. The card reader allows the users to easily print digital camera data to render high photo quality color images.

1.1.1 Features

The EPSON Stylus PHOTO 875DC features the following:

1. Supports PCMCIA (Personal Computer Memory Card International Association) Flash ATA card reader function.

2. Supports Compact Flash, Smart Media, Memory Stick (with PCMCIA Adapter).

3. Printer part and Storage part be connection via the USB hub

4. High color print quality

5. High speed printing

6. Windows/Macintosh exclusive

7. USB connection only high speed transfer

- Theoretical fastest transfer speed: 1.2MB/s

- Actual effect transfer speed: Approx. 440KB/s*

* Pentium 400MHz, Windows98 Second Edition, in the case that read

data from the 48MB CF card. Transfer speed depends on the environment of host PC.

8. The storage is recognized to the host as the removable media.

9. The card reader has a write protect function due to DSC media protection.

10. The card reader has the function that acquires media insertion status.

11. The card reader has the function that storage detects the allocated drive.

12. The card reader has the function that acquires the serial number of storage.

Figure 1-1. EPSON Stylus PHOTO 875DC

PRODUCT DESCRIPTIONS Overview 9

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1.2 Basic Specifications

This section only provides the basic specifications for the card reader part. For the information on the printer part, please see the EPSON Stylus PHOTO 870/1270 Service Manual.

1.2.1 Basic Specifications for the Card Reader Part

ENVIRONMENT

The following are requirements that must be met to use the USB Mass Storage Class driver.

Operating System:

Microsoft Windows 98*

Microsoft Windows 98 Second Edition*

MacOS 8.5 or later, and MacOS ROM version J1-1.2 or later.

*Only the pre-installed OS

USB Hosts: The USB Host must meet following requirements.

Microsoft Windows 98 is pre-installed on the Host PC that compiles with the PC98 design guide.

All of USB ports work correctly. (The functionality of the USB Port(s) must be ensured by PC OEM)

REFERENCES

Universal Serial Bus Specification Revision 1.0

USB Mass Storage Class CBI Transport Specification v1.0 RC5

American National Standard for Information Systems - Reduced Block Commands (RBC) T10/1240D

1.2.2 Electric specifications

120 V VERSION

Rated voltage: AC 100 - 120V

Input voltage range: AC 99 - 132V

Rated frequency range: 50 - 60Hz

Input frequency range: 49.5 - 60.5Hz

Rated current: 0.4 A

Power consumption: Approx. 14W (ISO 10561 Letter Pattern)

Approx. 4.5 W in standby mode

Energy Star compliant

Insulation Resistance: 10M ohms min. (between AC line and

chassis, DC 500V)

Dielectric strength: AC 1500V rms. 1minute (between AC line

and chassis)

< Macintosh >

The following product that was installed MacOS ROM version J1-1.2 or later (USB Service 1.1 or later) is necessary:

iMac (/A, /B, Color Model)

PowerMacintosh G3 (Blue & White)

NOTE: *Vacancy memory 1MB over necessary

220-240 V VERSION

Rated voltage: AC 220 - 240V

Input voltage range: AC 198 - 264V

Rated frequency range: 50 - 60Hz

Input frequency range: 49.5 - 60.5Hz

Rated current: 0.3 A

PRODUCT DESCRIPTIONS Basic Specifications 10

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Power consumption: Approx. 15W (ISO 10561 Letter Pattern)

Approx. 4.5W in standby mode Energy Star compliant

Insulation Resistance: 10M ohms min. (between AC line and chassis,

DC 500V)

Dielectric strength: AC 1000V rms. 1minute or

AC 1200V rms. 1 second (between AC line and chassis)

Safety, EMC

Safety: UL1950 (UL)

CSA C22.2 No.950 (CSA) EN60950 (VDE)

EMC: FCC Part15 Subpart B Class B

CSA C108.8 Class B AS/NZS3548 Class B

CE marking: Low voltage directive 73/23/EECEN60950

EMC Directive 89/336/EEC EN55022 Class B

EN61000-3-2 EN61000-3-3 EN50082-1 IEC 801-2/801-3/801-4

1.2.3 Reliability

Total print volume: 25,000 pages (A4, Letter)

Printhead life: 3000 million dots/nozzle

1.2.4 Environmental Condition

TEMPERATURE

Operating: 10 to 35°C *

Non-operating: -20 to 60°C*

1 month at 40°C and 120 hours at 60°C

HUMIDITY

Operating: 20 to 80% RH *2*

Non-operating: 5 to 85% RH *1*

*1: With shipment container

*2: Without condensation

*3: See the figuer below for the condition.

Humidity (%)

35 40

Temperature (°C)

Figure 1-2. Temperature/Humidity Range

PRODUCT DESCRIPTIONS Basic Specifications 11

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EPSON Stylus PHOTO 875DC Revision A

RESISTANCE TO SHOCK

Operating: 1G, within 1 ms, X, Y, Z directions

Non-operating: 2G, within 2 ms, X, Y, Z directions with

shipment contanier

RESISTANCE TO VIBRATION

Operating: 0.15G, 10 - 55Hz, X, Y, Z directions

Non-operating: 0.50G, 10 - 55Hz, X, Y, Z directions with

shipment contanier

CAUTION

When storing the printer, make sure the printhead is capped.

When transporting the printer, ensure the ink cartridges are installed in the printer and the printhead is capped.

If the printer power is off with the printhead left uncapped, turn the printer on with the ink cartridges installed, cap the printhead, and turn the printer off.

Ink freezes at below -4°C. It will be usable again after keeping it for about three hours at 25

PRODUCT DESCRIPTIONS Basic Specifications 12

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Pin #1

Pin #3

Pin #2

Pin #4

1.3 Interface

1.3.1 USB Interface

SPECIFICATIONS

Standard: Based on the following:

Universal Serial Bus Specifications Revision 1.0

Universal Serial Bus Device Class Definition for Printing Devices Version 1.0 (Printer part)

Universal Serial Bus Mass Storage Class CBI Transport Specification v1.0 (Storage part)

Bit rate: 12Mbps (Full Speed Device)

Data encoding: NRZI

Adaptable connector: USB Series B

Recommended cable length: 2 meters

CONNECTOR PIN ASSIGNMENT

Table 1-1. Connector Pin Assignment and Signals

Pin No. Signal Name I/O Function Description

1VCC -

2 -Data Bi-D Data

3 +Data Bi-D

4 Ground - Cable ground

Cable power. Max. power consumption is 2mA.

Data, pull up to +3.3 V via 1.5K ohm resistor.

DEVICE ID

The printer sends the following device ID string when it is requested.

When IEEE1284.4 is enabled,

<00H><5EH>

MFG:EPSON;

CMD:ESCPL2,BDC,D4;

MDL:Stylus<SP>Photo<SP>875DC;

CLS:PRINTER;

DES:EPSON<SP>Stylus<SP>Photo<SP>875DC;

When IEEE1284.4 is disabled,

<00H><5AH>

MFG:EPSON;

CMD:ESCPL2,BDC;

MDL:Stylus<SP>Photo<SP>875DC;

CLS:PRINTER;

Figure 1-3. USB Pin Assignment

DES:EPSON<SP>Stylus<SP>Photo<SP>875DC;

NOTE: [00H] denotes a hexadecimal value of zero.

PRODUCT DESCRIPTIONS Interface 13

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EPSON Stylus PHOTO 875DC Revision A

CAUTION

1.3.2 PCMCIA Card Slot

CARD SLOT STANDARD

PCMCIA Type-II card slot x 1

PC Card Standard (’97) compliance

MEMORY CARD

The following memory card is supported.

PCMCIA Flash ATA card

Compact Flash (with PCMCIA adapter)

Smart Media (with PCMCIA adapter)

Memory Stick (with PCMCIA adapter)

VOLTAGE

The following voltage is supported.

3.3v/5v

3.3v

As for the SONY memory stick, the following faulty occurs. Therefore, the restriction on use exists.

FAULTY CONDITION

1. Carry out the light protect (the LOCK notch) of the memory stick main body.

2. Memory stick is connected to the memory stick PCMCIA adapter (MSAC-PC1/MSAC-PC2).

3. Write protect of the USB Mass Storage driver is canceled.

4. Write data (includes “delete file”, “format”) from the host (Windows98, Macintosh).

NOTE: In the case that four aforementioned conditions were

included, all the faulty occurs.

PHENOMENON

Processing ends normally when it wrote data in the media with both WIndows98 and Macintosh. However, all the processing fail actually. Also, the blue screen is displayed, in the case that it is worst.

CAUSE

The cause of this problem is that the combination of the memory stick and PCMCIA adapter are not conforming to the specifications of PCMCIA. It is not able to detect it electrically even if the memory stick is set up to “write protect”, although PCMCIA is the possibility specification that detect whether or not is the media of “write protect” electrically.

PRODUCT DESCRIPTIONS Interface 14

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EPSON Stylus PHOTO 875DC Revision A

1.4 Function

For the printer operation, please see the Stylus PHOTO 870/1270 Service Manual.

1.4.1 Card Reader Part Panel Operation

LEVER

Card eject lever

NOTE: *Do not operate while Access LED is lighted.

INDICATOR

Access LED(Green)

Access LED lights up at the time of read/write of the media.

Access Lamp

Card Eject Lever

1.4.2 Card Reader Driver Function (Windows)

1.4.2.1 Drive form

The card reader is recognized to OS as the removable disk drive, and its drive name is allocated.

1.4.2.2 Card information acquisition

This function acquires the insertion condition of the PCMCIA card from the card reader and informs the application software of it. Information acquisition uses USB Control/Bulk transfer when API is called.

1.4.2.3 Drive name acquisition

The application software can acquire drive name assigned for the card read by using acquisition API. Also, if multiple cared readers exist on USB, the application software can acquire each pair of serial number and drive name.

1.4.2.4 Correspondence language

It corresponds to seven country of OS (Japanese, English, French, Italian, German, Spanish, Portuguese).

1.4.2.5 [Read Only mode] function

When [Read Only mode] is selected (default), the driver operates the media inserted to the card reader as the “Write Protect”.

1.4.2.6 [Write to Disk mode] function

The following function is supported in [Write to Disk mode].

1. Read/Write for long file name (8+3 characters or more)

2. Format (correspondence only the logic format by OS)

Figure 1-4. Card Reader Part Control Panel

PRODUCT DESCRIPTIONS Function 15

3. Delete file

4. Change file attribute

5. Make file

6. Rename file

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EPSON Stylus PHOTO 875DC Revision A

7. Make folder

8. Delete folder

9. Rename folder

1.4.2.7 Switching to [Write to Disk mode]

Switching between [Read Only mode] and [Write to Disk mode] is bidirectionally possible.

Switching between the [Read Only mode] and [Write to Disk mode] is implemented in condition without a media being inserted. Mode change is carried out by executing the application software “EPSON USB RW Switcher”. The result comes into effect at the time of the next media insertion.

Since the [Read Only mode] driver and [Write to Disk mode] driver are the same driver, installation is unnecessary.

The mode information is preserved to Windows Registry. Mode change is done by referring to the registry when the host is powered on.

Registry entry that controls this mode is as follows.

HKEY_LOCAL_MACHINE¥Enum¥ESDI¥EPSON___PM800DCSTORAGE

The key is as follows:

1.4.3 Card Reader Driver Function (Macintosh)

1.4.3.1 Drive form

The card reader is recognized to OS as the removable disk drive.

1.4.3.2 Card information acquisition

This function acquires the insertion condition of the PCMCIA card from the card reader and can notify the application software of it. Information acquisition uses USB Control/Bulk transfer when API is called.

1.4.3.3 Disk information acquisition

The application software can acquire the following information regarding the card reader by using the API.

1. Volume Reference Number

2. Driver Reference Number

3. Volume Name

4. Serial Number of the Card Reader

Also, when multiple card readers exist on USB, the application software can acquire each pair of the serial number and disk name.

Readonly (Binary, 00 = [Write to Disk mode], 01 = [Read Only mode])

1.4.3.4 Drive information acquisition

1.4.2.8 USB Descriptor change function

This function rewrites USB Descriptor of the card reader by using the API. The item that rewrites is as follows.

1. iProduct strings (UNICODE, maximum 23 characters)

2. iSerialNumber strings (UNICODE, maximum 12 characters)

The application software can acquire the following information regarding the card reader by using the API.

1. Write Protect Status

2. USB String descriptor, iManufacturer strings (product maker)

3. USB String descriptor, iProduct strings (product name)

4. USB String descriptor, iSerialNumber strings (serial number)

1.4.2.9 Correspondence file system

The file system that corresponds is as follows.

1. FAT (VFAT)

2. FAT32

PRODUCT DESCRIPTIONS Function 16

1.4.3.5 Correspondence language

It corresponds to seven language of OS (Japanese, English, French, Italian, German, Spanish, Portuguese).

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EPSON Stylus PHOTO 875DC Revision A

CAUTION

1.4.3.6 [Read Only mode] function

When [Read Only mode] is selected (default), the driver operates the media that is inserted to the card reader as the “Write Protect”.

1.4.3.7 [Write to Disk mode] function

The following function is supported in [Write to Disk mode].

1. Read/Write for long file name (8+3 characters or more)

2. Format

3. Delete file

4. Change file attribute

5. Make file

6. Rename file

7. Make folder

8. Delete folder

9. Rename folder

10. Memory of the Folder condition (location, size etc)*

NOTE: Not able to acquire the information that is whether the file is

opened by the restriction of File Exchange of the MacOS 8.5.1 belonging.

1.4.3.9 Media insertion / removal

The icon and volume name (untitled, etc.) are displayed on the desktop when the PCMCIA media is inserted into the card reader.

In the case that the media is removed, the disk should be un-mounted without fail. (Drag the icon on the desktop in the garbage can, or Click [Eject] on [Special] menu.)

When the un-mounting is carried out normally, the message “The memory card can be removed from the card drive. Please remove the memory card.” is displayed and the icon disappears from the desktop.

In the case that media is removed without un-mounting, the warning message is displayed immediately. At this time, replace the media in the drive immediately. There is the possibility that the system becomes unstable and the data be lost if the media is not replaced in the drive.

In the case that USB cable is pulled out without unmounting, the warning message is displayed immediately. At this time, reconnect the cable to the port immediately. There is the possibility that the system becomes unstable and also the data be lost if the cable is not reconnected to the port.

1.4.3.8 Switching to [Write to Disk mode]

Switching between [Read Only mode] and [Write to Disk mode] is bidirectionally possible.

Mode change is implemented in condition without the media being mounted. The mode change is carried out by the implementation of the application software “EPSON USB RW Switcher”.

The change result comes into effect at the time of the next media mounting.

The mode information is stored to the initial setting file (EPSON PhotoStarter pref).

PRODUCT DESCRIPTIONS Function 17

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EPSON Stylus PHOTO 875DC Revision A

1.4.3.10 Media format

Media can be formatted when the [Write to Disk mode] is selected. The format that initializes the media differs depending on the condition of the current media format, as shown in the table below:

Table 1-2. Initialization Format

Current

Format

Unformated Mac OS standard, Mac OS expansion*1, DOS

Mac OS Mac OS standard, Mac OS expansion*1, DOS*2

DOS Mac OS standard*3, DOS

*1: For the media of 32MB over, the Mac OS expansion format can be also

selected.

*2: The media that was initialized with iMac or G3 can select the DOS format.

*3: In the case that File Exchange is ineffective (OFF), a Mac OS

standard format can be selected.

Initialization possibility format

1.4.3.11 Icon

An icon is displayed to the desktop when a media is mounted. Note the exclusive icon is only displayed for HFS format media. For DOS format media, a Mac OS standard icon is used.

1.4.3.13 Display in the expansion manager

If “EPSON USBStorageClass1” is selected by the expansion manager, the following character strings are displayed as an item information.

EPSON USBStorageClass1

This USB driver is necessary to use the EPSON Stylus Photo series PCMCIA card driver.

1.4.3.12 Correspondence file system

1. FAT(VFAT)*

2. HFS

3. HFS+ (32MB or more)

*: File Exchange is used.

PRODUCT DESCRIPTIONS Function 18

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EPSON Stylus PHOTO 875DC Revision A

1.5 Outer Case Specifications

DIMENSIONS

Stacker (open): 483 mm (W) x 613 mm (D) x 302 mm (H)

Stacker (closed): 483 mm (W) x 407 mm (D) x 302 mm (H)

NOTE: With a paper support installed

WEIGHT

Approximately 6.4 kg

302 mm

613 mm

483 mm

Figure 1-5. External Dimension

PRODUCT DESCRIPTIONS Outer Case Specifications 19

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OPERATING PRINCIPLES

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

2.1 Overview

The EPSON Stylus PHOTO 875DC consists of the printer part and card reader part. The printer part is the same as for the Stylus PHOTO 870. So this manual only refers to the operating principles of the card reader part.

USB I/F

Card Reader PartCard Reader Part

C364MAINC364MAIN

PCMCIA

USB HUB

Printer PartPrinter Part

C304MAIN

CPU, ASIC, RAM, etc.

PCMCIA

Type-II

Panel Board

Printer

Mechanism

2.1.1 Card Reader Part

The figure below summarizes the card reader part.

Card Reader PartCard Reader Part

C364MAINC364MAIN

EEPROM

MIC2562A

E05B75 ASIC

USB

4Mbit DRAM

4Mbit Flash ROM

USB Hub

CPU V831

CPU Bus

PCMCIA Type-II

PCMCIA-ATA

Power Supply Board

Printer Part

C364PSB/PSEC364PSB/PSE

Figure 2-2. Block Diagram for the Card Part

Figure 2-1. Block Diagram of the Stylus PHOTO 875DC

OPERATING PRINCIPLES Overview 21

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The major elements in the card reader part are as shown in the following table.

Table 2-1. Major Elements in the Card Reader Part

Name IC Functions

160-pin PGFP, operating at 33.0MHz (internally 99MHz).

CPU (V831) IC1

ASIC (E05B75)

MIC2562A IC6

MBM29LV40 0TC/BC

• USB storage class target

• PCMCIA control

A 208-pin PGFP, operating at 33 MHz (48MHz for USB).

• USB storage class

• PCMCIA interface

• 16-bit DATA BUS V831 interface

IC2

• EEPROM interface

• Mac. serial interface

• 2 LED drive boards

• 1 universal input port

PCMCAI socket power controller

• 14-pin S.O. package

4Mbit flash ROM

• 48-pin TSOP

• Powered by 3.3V single power source

IC8

• Can be cleared by chip bulk or sector unit.

• Program

Table 2-1. Major Elements in the Card Reader Part (continued)

Name IC Functions

4-port hub IC

• 32-pin TQFP

TUSB2043 IC5

• 3.3V-operative self power mode

• Integrates a transceiver that complies with the Universal serial bus specifications Rev.1.

4Mbit DRAM with the 2CAS-type page access function

MSM51V426 5E-60

AT93C4610S-2.7

• 44-pin TSOP

IC4

• Powered by the 3.3V single power source

• Various buffers

• Work area

1Kbit (x16) EEPROM

• 8-pin SOP

IC10

• Powered by 3.3V single power source

• Stores the device ID

• Stores the panel information

OPERATING PRINCIPLES Overview 22

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2.1.2 Power Supply Board

C364PSB/PSE, the power supply board of this printer, features the following:

Logic line: +5V ± 5%, 0.95A

+3.3V ± 5%, 0.85A

Drive line: +42V ± 5%, 0.4A (maximum 1.4A)

Power supply control in the secondary power switch

The secondary side switching operation allows the printer to keep supplying power to the both logic and drive lines for at least 30 seconds after the printer power is turned off.

If the AC plug is disconnected from the AC socket while the printer power is on, voltage for the logic line is kept for at least 256ms.

2.1.3 USB Hub

2.1.3.1 Overview

The USB hub of this printer features the following:

Complies with the Universal serial bus specifications Rev. 1.0.

Not powered from the Vbus.

Self-powered hub

Two ports are used as the down stream ports. (Other two are not

used.)

Stand-alone type hub without CPU’s control

Vendor ID/product ID is built up to allow future support availability.

2.1.3.2 Hub Port Connection

When connecting to the USB, the hub IC (TUSB2043A) lets the printer recognize the device in the following order:

1. Hub IC

2. Printer part

3. Card reader part

OPERATING PRINCIPLES Overview 23

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EPSON Stylus PHOTO 875DC Revision A

2.1.4 Printer Circuit Operation

The printer circuit operation of this printer is the same as for the Stylus PHOTO 870 except for the points below:

Power supply circuit The card reader part is powered by the printer’s power supply board.

No parallel interface connector is supported but art work exists.

USB interface circuit Changed to the interface that connects to the PC via the USB hub.

CPU (H8S/2328)

24MHz

Head data driver circuit

Head pulse driver circuit

ASF motor driver circuit

DC motor control circuit

(H8S/2357)

CR motor driver circuit

PF motor driver circuit

ASIC (HG73C066FM)

8Mbit PROM

R27V852D

16Mbit DRAM

Sensors

Parallel I/F

2Kbit EEPROM

(93C56 equivalent)

Timer circuit

(RTC9810SA)

Reset Circuit

(RTC9810SA)

USB I/F

Figure 2-3. Printer Circuit Block Diagram

Mini USB connector

OPERATING PRINCIPLES Overview 24

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TROUBLESHOOTING

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

3.1 Overview

Please see the EPSON Stylus PHOTO 870/1270 Service Manual.

TROUBLESHOOTING Overview 26

Page 27

DISASSEMBLY AND ASSEMBLY

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

W ARNING

4.1 Overview

This chapter describes procedures for disassembling the main components of the EPSON Stylus PHOTO 875DC. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this chapter. Precautions for any disassembly or assembly procedure are described under the heading “CAUTION” and “CHECK POINT”. Any adjustments required after disassembling the units are described under the heading “REQUIRED ADJUSTMENT”.

Since the printer part is common to the Stylus PHOTO 870, this manual only describes the procedures that are specific to Stylus PHOTO 875DC. For the rest of the procedures, please see the Stylus PHOTO 870/1270 Service Manual.

4.1.1 Precaution for Disassembling the Printer

See the precautions given under the heading “WARNING” and “CAUTION” in this section when disassembling or assembling EPSON Stylus PHOTO 875DC.

Disconnect the power cable before disassembling or assembling the printer.

Wear protective goggles to protect your eyes from ink. If ink gets in your eye, flush the eye with fresh water and see a doctor immediately.

If ink comes into contact with your skin, wash it off with soap and water. If irritation occurs, contact a physician.

A lithium battery is installed on the main board of this printer. Be sure to observe the following instructions when serving the battery:

1. Keep the battery away from any metal or other batteries so that electrodes of the opposite polarity do not come in contact with each other.

2. Do not heat the battery or put it near fire.

3. Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the battery, burning or explosion. The leakage may affect other devices close to the battery.)

4. Do not charge the battery. (An explosion may be generated inside the battery, and cause burning or explosion.)

5. Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning or explosion may also be resulted.)

6. Do not install the battery in the wrong direction. (This may cause burning or explosion.)

Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacture. Dispose the used batteries according to government’s law and regulations.

DISASSEMBLY AND ASSEMBLY Overview 28

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EPSON Stylus PHOTO 875DC Revision A

4.1.2 Tools

CAUTION

Risque d’explosion si la pile est remplacée incorrectment. Ne remplacer que par une pile du même type ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées selon les lois et les règles de sécurité en vigueur.

Never remove the ink cartridge from the carriage unless this manual specifies to do so.

When transporting the printer after installing the ink cartridge, be sure to pack the printer for transportation without removing the ink cartridge.

Use only recommended tools for disassembling, assembling or adjusting the printer.

Apply lubricants and adhesives as specified. (See Chapter 6 for details.)

Make the specified adjustments when you disassemble the printer. (See Chapter 4 for details.)

Once the ink cartridge mounted on the printer is removed, air comes into and creates bubbles in the cartridge. These bubbles clog ink flow and eventually cause printing malfunction. For this reason, If you need to remove any ink cartridges during disassembling, be sure to replace them with new ones.

Because of the reasons above, make sure to return the printer to the user with new ink cartridges installed.

Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the printer. Use only tools that meet these specifications.

Table 4-1. Tool List

Tools

(+) Driver No.2 O.K. B743800200

(+) Driver No.1 O.K. B743800400

Tweezers O.K. B741000100

Hexagon Box Driver (Paired side: 5.5mm)

Scale PF unit Assembling tool

Mounting Plate Scale Attachment tool

Commercially

Available

O.K. B741700100

EPSON exclusive 1050767

EPSON exclusive 1051765

Code

DISASSEMBLY AND ASSEMBLY Overview 29

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EPSON Stylus PHOTO 875DC Revision A

4.1.3 Specifications for Screws

Table 4-2 shows screw specifications. During assembly and disassembly, make sure that the specified types of screws are used at proper locations, referring to the table below.

Table 4-2. Screw Specifications

Body Name Size

+Bind S-tite (CBS) M3x6

+Bind P-tite (CBP) M3x6

+Bind P-tite (CBP) M3x8

+Bind P-tite (CBP) M2.5x5

+Pan head (C.P.) M3x6

--- +Pan head B-tite Sems M3X8

+Bind S-tight Sems (CBS Sems) M3x6

+Bind S-tight (CBS) M3x10

--- +Pan head B-tite Sems 1.7 x 5

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EPSON Stylus PHOTO 875DC Revision A

4.1.4 Service Checks After Repair

Before returning the printer after servicing, use the check list below, which enables you to keep record of servicing and shipping more efficiently.

Table 4-3. Inspection Checklist for Repaired Printer

Category Component Item to check Is Check Required?

Self-test Is the operation normal?

On-line test Was the on-line test successful?

Printhead Is ink ejected normally from all nozzles?

Does the carriage move smoothly?

Any abnormal noise during movement?

Carriage mechanism

Printer units

Paper feeding mechanism

Adjustment Specified adjustment items Are adjusted conditions all right?

Lubricant Specified lubricated item

Function ROM version Newest version:

Shipment package

Others Attached items Are all attached items from users included?

Ink cartridges are the ink cartridges installed correctly?

Protection conditions during transport

Any dirt or obstacles around the shaft of carriage guide?

Is the CR motor at the correct temperature (not over heating)?

Is paper fed smoothly?

Does paper get jammed?

Does paper get skew during paper feeding?

Are papers multi fed?

Does the PF motor get overheated?

Abnormal noise during paper feeding?

Is the paper path clear of all obstructions?

Is lubrication applied to the specified locations?

Is the quantity of lubrication adequate?

Is all the pointed parts firmly fixed?

Checked / "Not necessary

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EPSON Stylus PHOTO 875DC Revision A

4.2 Disassembly Procedures

The flowchart below shows procedures for disassembly.

START

HOUSING Removal

PC Card Reader Board Removal

Printer Part Disassembly

Uploading the PC Card Reader Firmware

Figure 4-1. Disassembly Flowchart

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EPSON Stylus PHOTO 875DC Revision A

4.2.1 HOUSING Removal

Since the printer mechanism itself structures the bottom part, it appears just by removing HOUSING.

1. Set the PG adjust lever to “+”.

2. Using the tweezers, release the hook securing HOUSING, SUPPORT, PG COVER to HOUSING and remove HOUSING, SUPPORT, PG COVER from HOUSING.

HOUSING, SUPPORT, PG COVER

dis03

CBS (3x10) Screws

HOUSING

Figure 4-2. HOUSING, SUPPORT, PG COVER Removal

3. Remove the four screws (CBS, 3x10) securing HOUSING. Then, pushing the PG lever inward, remove HOUSING by moving it upward.

CHECK

PO INT

To remove HOUSING, push it to the rear up and then lift it up.

When installing HOSING, make sure the PG adjust lever is

Figure 4-3. HOUSING Removal

CBS (3x10) Screws

dis04

set to “+”.

When installing HOUSING, ensure the head FFCs are not caught in HOUSING at the back of the printer.

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EPSON Stylus PHOTO 875DC Revision A

4.2.2 C364MAIN Board Removal

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the three screws (CBS, 3x6) securing HOUSING, SUPPORT, PC CARD.

3. Remove HOUSING, SUPPORT, PC CARD toward the front.

CAUTION

Since LENS, PC CARD easily comes off, watch out for it when disassembling/assembling HOUSING, SUPPORT, PC CARD.

LENS, PC CARD

dis06

Figure 4-4. Lens, PC CARD

HOUSING, SUPPORT, PC CARD

CBS (3x6)

dis05

Figure 4-5. HOUSING, SUPPORT, PC CARD Removal

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 34

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EPSON Stylus PHOTO 875DC Revision A

4. Remove the seven screws (CBS, 3x6) and the one (CP, 3x4) securing SHIELD PLATE, P/B, TOP.

5. Remove SHIELD PLATE, P/B, TOP.

SHIELD PLATE, P/B, TOP

CONTACT PLATE, P/B

CBS (3x6)

SHIELD PLATE, P/B, TOP

6. Disconnect the harnesses (for USB and C364PSB/PSE) from the connectors on the C364MAIN Board.

7. Remove the C364MAIN Board.

CBS (3x6)

Harness

(C364PSB/PSE)

C364MAIN Board

Harness (USB)

dis08

CBS (3x6)

Figure 4-7. C364MAIN Board Removal

CP (3x6)

dis07

Figure 4-6. HOUSING, SUPPORT, PC CARD Removal

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EPSON Stylus PHOTO 875DC Revision A

4.2.3 C364MAIN Board Unit Removal

This section describes how to separate the C364MAIN Board (card reader part) from the printer part.

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the C364MAIN Board. (Refer to Section 4.2.2.)

3. Release the harnesses (for USB and C364PSB/PSE) from the locking wire saddle attached to the C364MAIN Board.

Harnesses

Locking Wire Saddle

CBS (3x6)

4. Remove the four screws (CBS, 3x6) securing the C364MAIN Board Unit. (See Figure 4-8 and Figure 4-9.)

CBS (3x6)

dis10

Figure 4-9. C364MAIN Board Removal (2)

5. Remove the two screws (CBS, 3x6) securing the panel unit to the C364MAIN Board.

6. Release the two dowels fixing the C364MAIN Unit to the printer part and the one fixing the panel unit to the C364MAIN Unit, and remove the C364MAIN Unit.

dis09

Figure 4-8. C364MAIN Board Removal (1)

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 36

Page 37

ADJUSTMENT

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

CAUTION

5.1 Overview

This chapter describes adjustments required after disassembling/ assembling the printer. Since the Stylus PHOTO 875DC has the same printer part as in Stylus PHOTO 870, this manual only provides the service items specific to this product. For other items, please see the Stylus PHOTO 780/1280 Service Manual.

5.1.1 Adjustment Items

The additional adjustment for this product is as shown in the table below. Be sure to follow the procedure as instructed in this manual.

Table 5-1. Adjustment Item

No. Adjustment When to perform:

1 USB ID input

The table below lists the type of repair and corresponding adjustments. Be sure to make adjustments in the listed order.

When you replace either or both of the C364MAIN and C304MAIN Boards.

5.1.2 Tools

The table below lists the tools necessary for adjustments:

Table 5-3. Adjustment Tools

Tool Type of adjustment Specifications

Thickness Gauge

Microscope

Service Program for Stylus PHOTO 875DC

Parallelism Adjsutment

Backlash Adjsutment

• Adjustments

• Maintenance

• Print A4 pattern

Thickness: 1.14 mm

Magnified ratio: x 15 Minimum scale: 0.1mm

3.5- inch 2HD floppy disks

Never use a deformed (twisted or warped) or rusty thickness gauge.

Wipe off any dirt, grease, or foreign matter on the thickness gauge before you use it.

Table 5-2. Type of Repair and Corresponding Adjustments

No. Type of repair Required adjustments

Head voltage ID input

C364MAIN Board

replacement or C304MAIN Board replacement

Bi-Directional adjustment

USB ID check/input

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EPSON Stylus PHOTO 875DC Revision A

CAUTION

5.2 Adjustment

This section provides adjustment procedures specific to Stylus PHOTO 875DC.

5.2.1 Adjustment Using the Adjustment Program

Each product has its unique information on the main board to maintain its print ability and quality at an optimum level. For this reason, whenever you replace the printer mechanism or main board, you need to write the correct information of the printer mechanism to the main board using the adjustment program.

5.2.1.1 About the Adjustment Program

The adjustment items you can perform using this program are as shown in the table below. Since the printer part of the Stylus PHOTO 875DC is the same as in the Stylus PHOTO 870, the procedures specific to this product are only explained. For the procedures of other adjustments, please see the Stylus PHOTO 870/1270 Service Manual.

Table 5-4. Adjustments Using the Adjustment Program

No. Main Items Adjustment items

Adjustment

Maintenance

Head voltage ID input

Head angular adjsutment

Bi-Directional adjustment

USB ID check/input

Memory card drive firmware version check

Head cleaning

Initial ink charge

Protection counter check

CSIC information

(Stylus PHOTO 875DC specific)

5.2.1.2 How to Install the Program

Please be sure to run the program on Windows 98 only.

For the service program to work properly, you have to set up your computer as described below:

Use Windows 98.

Use only USB interface as the printer port.

Install the program in the order listed below:

1. Insert “Disk1” to the 3.5” floppy disk drive of your computer, and then execute “Setup.exe”.

2. As you prompted, insert “Disk2”, and the installation is done.

3. Click

SP87510E.exe

execute the program.

If you leave the printer in a non-printing status for 5 minutes or more, the carriage automatically returns to home position. In this case, you need to re-boot the computer to start the program.

Do not change the setting for Font size in Display settings.

Be sure to connect the printer to a PC with an interface cable before you start the program. Otherwise, the program freezes.

Do not send any command to the printer during a check pattern print.

While the service program is running, if the printer is turned off or the interface cable is disconnected, you need to launch the program again.

icon created in the Adjustment Program folder to

Print A4 pattern Print A4 pattern

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EPSON Stylus PHOTO 875DC Revision A

5.2.1.3 Starting the Service Program

CAUTION

1. Start the service program. The start-up window appears. In the window, select the model name and the port used for the printer to be adjusted, and click OK.

Make sure any ports other than selected for this program are not used for other Stylus PHOTO 875DCs.

Be careful not to connect four or more printers to the printer ports at a time. The fourth or later printers (ports device EPUSB4 or later) can not be adjusted by this service program. Once a printer is recognized as the fourth or later printer, it will not be adjusted. If it happens, delete that printer’s port through Control Panel / System / Device Manager/EPSON Printer Manager.

Figure 5-2. Main Menu

Figure 5-1. Start-up Window

2. The main menu window appears.

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EPSON Stylus PHOTO 875DC Revision A

5.2.2 USB ID Input

The USB ports of this printer are located on each board of the card reader part and printer part, and each part has its own USB ID. This is because, on Windows 98 and iMac, the USB port driver controls its devices by referring to the USB IDs. For the reason above, the USB ports of the printer part and card reader part are independently assigned. However, since the printer operates combining the both parts, it need to have the same information in their USB IDs. So this section describes how to input USB ID by using the service program.

CAUTION

Input USB ID under any of the following circumstances:

When you replace either control board: Since ASP control board does not have a USB ID, you need to get the old board’s USB ID by referring to the other board’s ID and input it as the USB ID of the new board.

When you replace the both control boards: Unless you know their USB IDs, you need to input the printer’s serial number to let the service program automatically define and store the new USB IDs for the both boards.

1. Start the service program and access the main menu.

2. Select screen appears.

USB ID input/check

and click OK. The USB ID input/check

Figure 5-3. USB ID Input/Check Window

3. Select

Input USB ID

and click OK. The USB ID input window appears.

Figure 5-4. USB ID Input Window (1)

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EPSON Stylus PHOTO 875DC Revision A

CAUTION

4. According to the board(s) you replaced, select the item from the list and click

If you have replaced control board for the printer part, select the top item. The service program refers to the USB ID of the control board in the card reader part and inputs the corresponding USB ID for the new board.

If you have replaced control board for the card reader part, select the middle item. The service program refers to the USB ID of the control board in the printer part and inputs the corresponding USB ID for the new board.

If you have replaced the both boards, the following screen appears.

If you input USB ID, be sure to quit the service program and turn the printer power off. Otherwise, the new USB ID is not stored in the control board.

9. Turn the printer power back on.

10. Start the service program again.

11. Select Both USB IDs are displayed in the bottom window.

Check USB ID

in the USB ID Input/Check window and click OK.

Figure 5-5. USB ID Input Window (2)

5. Get the 10-digit serial number at the back of the printer.

6. Type the serial number in the window and click OK. The new USB ID is indicated in the bottom window.

7. Quit the service program.

8. Turn the printer power off.

ADJUSTMENT Adjustment 42

Figure 5-6. USB ID Input Window (3)

12. Select confirmation of the USB port function window appears. In the window, click OK. If the USB port connection is established properly, A4 pattern will print.

Confirmation of USB port function

Even though you type a wrong serial number, the service program accepts it. Therefore, be sure to type the serial number exactly.

Setting values are not effective until the printer power is next turned on since they are stored in EEPROM when the printer is turned off.

and click OK, and the

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EPSON Stylus PHOTO 875DC Revision A

5.2.3 Memory Card Drive Firmware Uploading

This section describes how to upload the firmware of the card reader. The card reader firmware is stored in the flash ROM on the C364MAIN board.

5.2.3.1 Copying the firmware to the PCMCIA Card

This section provides the procedure for copying the firmware to the CF card of the FAT format.

Tools

PC that supports PCMCIA card

Compact flash (CF) and PCMCIA card adopter or PCMCIA memory card.

1. Install the CF card to the card adopter or install the memory card to the PC.

2. Turn the PC on.

3. Using Explorer, check that the PCMCIA card is recognized as a removable disk.

4. Using Explorer, copy the firmware to the removable disk.

5. Turn the PC off and remove the card.

5.2.3.2 Uploading the Memory Card Driver Firmware

Tools

PC that operates on Windows98 or the one that supports USB interface.

Compact flash (CF) and PCMCIA card adopter or PCMCIA memory card.

1. Remove the Housing. (See Chapter 4/Section 4.2.1.)

2. Remove the “Shield Plate, P/B, Upper” for the card reader. (See Chapter 4/Section 4.2.2.)

3. Set the jumper JP2 on the C364MAIN board as shown below:

1 - 2 : Short 3 - 4 : Open

CAUTION

If you transfer the firmware from the card reader of this printer to the memory card, perform the following operation:

Insert the memory card to the card reader. If “EPSON Photo Quicker” starts, press the stop button to terminate it.

Figure 5-7. JP2 and LED1

4. Disconnect the USB cable.

5. Insert the PCMCIA card that stores the firmware into the PCMCIA slot and then turn the printer power on.

ADJUSTMENT Adjustment 43

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EPSON Stylus PHOTO 875DC Revision A

6. Turn the printer power off. The power LED (green lamp) on the panel blinks once and the printer begins to load the firmware to the flash ROM on the card reader. When the power LED starts blinking, it means the writing is done. (It takes about ten seconds for the writing operation to be completed.)

7. When the operation is executed, turn the printer power off.

8. Set the jumper JP2 as shown below:

1 - 2 : Open 3 - 4 : Short

9. Mount the “Shield Plate, P/B, Upper” on the card reader.

10. Install the Housing.

5.2.3.3 Checking for the Memory Card Drive Firmware Version

Use this function to check for the memory card drive firmware version.

1. Start the service program and access the main menu window.

2. Select Checksum window appears.

Figure 5-8. Memory Card Drive Firmware Checksum Window

Firmware Checksum

. The Memory Card Drive Firmware

3. Click OK, and the memory card drive firmware version is indicated.

ADJUSTMENT Adjustment 44

Page 45

MAINTENANCE

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

6.1 Overview

Since the printer part of the Stylus PHOTO 875DC is common to the Stylus PHOTO 870, please see the EPSON Stylus PHOTO 870/1270 Service manual.

MAINTENANCE Overview 46

Page 47

APPENDIX

CHAPTER

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EPSON Stylus PHOTO 875DC Revision A

7.1 Connector Summary

The main components of the printer are as shown below. For information on the printer part, please see the Stylus PHOTO 870/1270 Service Manual.

Card reader part:

Main control board: C364MAIN

Power supply part:

Power supply board: C364PSB/PSE

Printer part:

Main control board: C304MAIN

Panel board: C304PNL

USB I/F

CN1

PC Card Reader PartPC Card Reader Part

C364MAIN

CN2

CN3

CN6

PCMCIA

Type-II

See the following tables for the connector

Table 7-1. Connectors

Connector Function Table to refer to

C364MAIN

CN1 USB upstream

CN2 USB downstream

CN3 PCMCIA

CN6 Power input from C364PSB/PSE

C364PSB/PSE

CN1 AC power input

CN2 Power supply to the printer

CN3 Power supply to C364MAIN

Table 7-2. CN1 Pin Assignment

Pin Number Signal Name Function

1 VCC Power bus

Panel Board

C304PNL

Printer PartPrinter Part

Printer

Mechanism

AC Inlet

C304MAIN

CN1

CN2

Power Supply BoardPower Supply Board

CN3

C364PSB/PSEC364PSB/PSE

Figure 7-1. Interconnection of the Major Components

2 D- USB signal line

3 D+ USB signal line

4 GND Ground

Table 7-3. CN2 Pin Assignment

Pin Number Signal Name Function

1 VCC Power bus

2 D- USB signal line

3 D+ USB signal line

4 GND Ground

APPENDIX Connector Summary 48

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EPSON Stylus PHOTO 875DC Revision A

Table 7-4. CN3 Pin Assignment

1, 34, 35, 68 GND Ground

17, 51 VCC VCC

18, 52 VPP VPP

30 CD0

31 CD1

32 CD2

2CD3

3 CD4

4CD5

5 CD6

6CD7

64 CD8

65 CD9

66 CD10

37 CD11

38 CD12

39 CD13

40 CD14

41 CD15

29 CA0

28 CA1

27 CA2

26 CA3

25 CA4

PCMCIA slot data bus

Table 7-4. CN3 Pin Assignment (continued)

24 CA5

23 CA6

22 CA7

12 CA8

11 CA9

8 CA10

10 CA11

21 CA12

13 CA13

14 CA14

20 CA15

19 CA16

46 CA17

47 CA18

48 CA19

49 CA20

50 CA21

53 CA22

54 CA23

55 CA24

56 CA25

61 /REG Resistor select

7 /CE1 Card enable

42 /CE2 Card enable

9 /OE Output enable

PCMCIA slot data bus

APPENDIX Connector Summary 49

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EPSON Stylus PHOTO 875DC Revision A

Table 7-4. CN3 Pin Assignment (continued)

15 /WE Write enable

44 /IORD I/O read

45 /IOWR I/O Write

58 RESET Reset

16 RDY Ready

59 /WAIT Bus cycle extension

62 BVD2/SPKR

60 INPACK Input port replay

33 WP/IOIS16B Write protect/I/O port is 16bit

43 VS1 Voltage sense

57 VS2 Voltage sense

36 /CD1 Card detection

67 /CD2 Card detection

BVD1/

STSCHK

Batttery voltage detection/Audio digital waveform

Battery voltage detection/Card status change

Table 7-5. CN Pin Assignment

1, 2 +5V +5V power source

3, 4 GND Ground

5, 6 +3.3V +3.3V power supply

7, 8 GND Ground

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EPSON Stylus PHOTO 875DC Revision A

7.2 Circuit Board Component Layout

C364MAIN CONTROL CIRCUIT BOARD

Component Side

Soldered Side

Figure 7-2. Component Layout - C364MAIN

APPENDIX Circuit Board Component Layout 51

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EPSON Stylus PHOTO 875DC Revision A

C304MAIN CONTROL CIRCUIT BOARD

Component Side

Soldered Side

Figure 7-3. Component Layout - C304MAIN

APPENDIX Circuit Board Component Layout 52

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EPSON Stylus PHOTO 875DC Revision A

C364PSB/PSE CIRCUIT BOARD

Figure 7-4. Component Layout - C364PSB Figure 7-5. Component Layout - C364PSE

APPENDIX Circuit Board Component Layout 53

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EPSON Stylus PHOTO 875DC Revision A

C304PNL CIRCUIT BOARD

Figure 7-6. Component Layout - C304PNL

APPENDIX Circuit Board Component Layout 54

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EPSON Stylus PHOTO 875DC Revision A

7.3 Exploded Diagrams

122

106

133

117

754

122

132

122

400

125

774

122

103

125

500

751

774

766

753

182

775

116 122

752

102

122

130

188

122

181

124

134

136

135

104

EPSON Stylus PHOTO 875DC Exploded Diagram No.1

124

122

124

100

125

105

125

450

Rev. 01 10162

125

115

122

126

110

139

125

101

185

138

122

124

137

186

APPENDIX Exploded Diagrams 55

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EPSON Stylus PHOTO 875DC Revision A

122

332

122

144

142

250

122

144

122

149

122

143

140

145

122

336

122

146

141

EPSON Stylus PHOTO 875DC Exploded Diagram No.2

144

122

148

Rev. 01 10162

144

APPENDIX Exploded Diagrams 56

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EPSON Stylus PHOTO 875DC Revision A

587

607

606

534

574

603

594

532

512

591

524

604

122

330

111

580

122

200

122

587

613

501

122

119

506

122

113

114

300

122

112

122

108

131

122

608

122

109

122

587

122

587

147

331

505

108

587

614

119

EPSON Stylus PHOTO 875DC Exploded Diagram No.3 Rev. 01 10162

APPENDIX Exploded Diagrams 57

Page 58

EPSON Stylus PHOTO 875DC Revision A

761

702

560

762

759

563

760

762

564

644

615

706

604

700

701

703

569

562

704

705

568

561

770

587

575

577

748

567

758

514

553

555

589

748

571

756

552

587

507

551

550

546

549

609

548

612

(501)

551

550

557

548

550

605

549

588

551

550

549

588

513

575

566

587

545x5

550

(506)

549

551

550

548

550

549

550

565

548

550

587

572

551

558

550

548

757

551

548

547

549

550

554

587

570

EPSON Stylus PHOTO 875DC Exploded Diagram No.4

Rev. 01 10162

APPENDIX Exploded Diagrams 58

Page 59

EPSON Stylus PHOTO 875DC Revision A

610

(501)

765

556

622

623

585

510

520

593

579

587

531

592

587

627

582

578

587

504

610

619

628

509

625

619

628

576

586

626

587

620

612

587

637

588

544

542

559

590

639

544

526

542

587

525

587

544

542

521

518

542

544

542

544

530

542

611

540

544

502

587

542

544

536

541 544

542

610

544

528

517

528

543

544

542

529

587

544

542

527

542

538

544

522

542

544 542

539

537

641

642

616

515

618

516

535

531

599 119

621

530

587

511

587

533

531

624

508

519

EPSON Stylus PHOTO 875DC Exploded Diagram No.5 Rev. 01 10162

APPENDIX Exploded Diagrams 59

Page 60

EPSON Stylus PHOTO 875DC Revision A

735

720

724

730

731

721

728

729

746

733

780

without 715,747,748

727

723

718

745

734

732

726

746

745

764

739

724

709

717 718

725

755

735

712

720

740

736

581

722

713

763

716

721

711

723

738

719

737

708

747

707

710

714

703

748

736

737

739

715

EPSON Stylus PHOTO 875DC Exploded Diagram No.6

Rev. 01 10162

APPENDIX Exploded Diagrams 60

Page 61

EPSON Stylus PHOTO 875DC Revision A

7.4 Electrical Circuit Board Diagrams

See the following pages for the electrical circuit board diagrams below:

C364MAIN

C304MAIN (1)

C304MAIN (2)

C364PSB

C364PSE

APPENDIX Electrical Circuit Board Diagrams 61

Page 62

Page 63

Page 64

Page 65

Page 66

Epson 875DC Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRODUCT DESCRIPTIONS

1.1 Overview

1.1.1 Features

1.2 Basic Specifications

1.2.1 Basic Specifications for the Card Reader Part

1.2.2 Electric specifications

1.2.3 Reliability

1.2.4 Environmental Condition

1.3 Interface

1.3.1 USB Interface

1.3.2 PCMCIA Card Slot

1.4 Function

1.4.1 Card Reader Part Panel Operation

1.4.2 Card Reader Driver Function (Windows)

1.4.2.1 Drive form

1.4.2.2 Card information acquisition

1.4.2.3 Drive name acquisition

1.4.2.4 Correspondence language

1.4.2.5 [Read Only mode] function

1.4.2.6 [Write to Disk mode] function

1.4.2.7 Switching to [Write to Disk mode]

1.4.3 Card Reader Driver Function (Macintosh)

1.4.3.1 Drive form

1.4.3.2 Card information acquisition

1.4.3.3 Disk information acquisition

1.4.3.4 Drive information acquisition

1.4.2.8 USB Descriptor change function

1.4.2.9 Correspondence file system

1.4.3.5 Correspondence language

1.4.3.6 [Read Only mode] function

1.4.3.7 [Write to Disk mode] function

1.4.3.9 Media insertion / removal

1.4.3.8 Switching to [Write to Disk mode]

1.4.3.10 Media format

1.4.3.11 Icon

1.4.3.13 Display in the expansion manager

1.4.3.12 Correspondence file system

1.5 Outer Case Specifications

OPERATING PRINCIPLES

2.1 Overview

2.1.1 Card Reader Part

2.1.2 Power Supply Board

2.1.3 USB Hub

2.1.3.1 Overview

2.1.3.2 Hub Port Connection

2.1.4 Printer Circuit Operation

TROUBLESHOOTING

3.1 Overview

DISASSEMBLY AND ASSEMBLY

4.1 Overview

4.1.1 Precaution for Disassembling the Printer

4.1.2 Tools

4.1.3 Specifications for Screws

4.1.4 Service Checks After Repair

4.2 Disassembly Procedures

4.2.1 HOUSING Removal

4.2.2 C364MAIN Board Removal

4.2.3 C364MAIN Board Unit Removal

ADJUSTMENT

5.1 Overview

5.1.1 Adjustment Items

5.1.2 Tools

5.2 Adjustment

5.2.1 Adjustment Using the Adjustment Program

5.2.1.1 About the Adjustment Program

5.2.1.2 How to Install the Program

5.2.1.3 Starting the Service Program

5.2.2 USB ID Input

5.2.3 Memory Card Drive Firmware Uploading

5.2.3.1 Copying the firmware to the PCMCIA Card

5.2.3.2 Uploading the Memory Card Driver Firmware

5.2.3.3 Checking for the Memory Card Drive Firmware Version

MAINTENANCE

6.1 Overview

APPENDIX

7.1 Connector Summary