EPSON R320 Service Manual

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SERVICE MANUAL

Color Inkjet Printer

EPSON Stylus Photo R320

SEIJ04005

Notice

photocopying, 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.

I&I CS/Quality Manageme nt & 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 six 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:

• Electrical circuit boards schematics

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.

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

C H E C K

P O I N T

W A R N I N G

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 or condition 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 that a particular task must be carried out according to a certain standard after disassembly and before re-assembly, otherwise the quality of the components in question may be adversely affected.

Revision Status

Revision Issued Date Description

A September 3, 2004 First Release B September 27, 2004 Revised Contents

[Chapter 2]

• Checkpoint (page 37) : Newly added

• Page 47, 48, 52, 54, 55, 68, 69 : Corrected errors

• Adjustment item for PF Timing Belt (page 80) : Deleted

EPSON Stylus Photo R320 Revision B

Chapter 1 TROUBLESHOOTING

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

1.2 Troubleshooting with LED/LCD Indications and Status Monitor 3 Message ..... 9

1.3 Unit Level Troubleshooting ............................................................................... 14

Chapter 2 DISASSEMBLY AND ASSEMBLY

2.1 Overview ............................................................................................................ 32

2.1.1 Precautions ................................................................................................. 32

2.1.2 Tools .......................................................................................................... 33

2.1.3 Pre-Shipment Checks ................................................................................. 33

2.2 Caution regarding assembling/disassembling the printer mechanism,

and how to ensure the quality of reassembled product ....................................... 35

2.3 Disassembly ........................................................................................................ 37

2.3.1 Removing Paper Support Assy. .................................................. ............... 38

2.3.2 Removing Preview Monitor Unit .............................................................. 39

2.3.3 Removing Housing, Upper ............................................................ ............ 40

2.3.4 Removing Housing, Middle .......................................... ............................. 41

2.3.5 Removing Porous Pad, Paper Guide, Front, Left, Support ........................ 43

2.3.6 Removing Panel Board .............................................................................. 45

2.3.7 Removing Stacker Assy. ............................................................................ 46

2.3.8 Removing Main Board .............................................................................. 47

2.3.9 Removing ASF Assy. ................................................................................ 50

2.3.10 Removing Holder, Shaft Assy. ....................................................... ......... 53

2.3.11 Removing CR Motor ............................................................................... 56

2.3.12 Removing APG Assy. .............................................................................. 57

2.3.13 Removing Print Head .............................................................................. 59

2.3.14 Removing Carriage Unit .......................................................................... 60

2.3.15 Removing Paper Guide, Upper ................................................................ 66

2.3.16 Removing Printer Mechanism/Housing, Lower .................... .................. 67

2.3.17 Removing Power Supply Unit ................................................................. 71

2.3.18 Removing CDR Guide Assy. ................................................................... 72

2.3.19 Removing Ink System .............................................................................. 74

2.3.20 Removing Paper Guide, Front/Roller EJ Assy. ....................................... 77

2.3.21 Removing PF Motor ................................................................................ 81

Chapter 3 ADJUSTMENT

3.1 Adjustment Items and Overview ........................................................................ 83

3.1.1 Servicing Adjustment Item List ................................................................. 83

3.1.2 Replacement Part-Based Adjustment Priorities ........................................ 86

3.2 Adjustment by using adjustment program .......................................................... 88

3.2.1 Market Setting ........................................................................................... 88

3.2.2 USB ID Input ............................................................................ ................. 88

3.2.3 Head ID Input ............................................................. .. ............................. 88

3.2.4 Head Angular Adjustment ......................................................................... 89

3.2.5 Bi-d Adjustment ........................................................................................ 89

3.2.6 PW Sensor Adjustment ................................................. ............................. 90

3.2.7 First Dot Adjustment ................................................................................. 90

3.2.8 Offset Input for CR Motor Calorific Limitation ........................................ 91

3.2.9 A4 Normal Paper Print .............................................................................. 91

3.2.10 A4 Photo Quality Inkjet Paper Print ......................................... ............... 91

3.2.11 A4 Photo Paper/ Glossy Photo Paper print .............................................. 91

3.3 Adjustment Except Adjustment Program ........................................................... 92

3.3.1 PG Adjustment ........................................................ .................................. 92

3.4 Firmware Updating ................................................................................. ............ 95

3.4.1 Firmware Updating Procedure ................................................................... 95

3.4.2 Abnormal Updating Termination .............................................................. 96

Chapter 4 MAINTENANCE

4.1 Overview ....................................................................... ..................................... 98

4.1.1 Cleaning ........................................................................ ............................. 98

4.1.2 Service Maintenance .................................................................................. 98

4.1.3 Lubrication ................................................................................ ............... 100

Chapter 5 APPENDIX

5.1 Exploded Diagram ............................................................................................ 108

5.2 Electrical Circuits ....................................................... ...................................... 108

TROUBLESHOOTING

CHAPTER

EPSON Stylus Photo R320 Revision B

1.1 Overview

This chapter describes how to identify troubles in two levels: unit level repair and component level repair. Refer to the flowchart in this chapter to identify the defective unit and perform component level repair if necessary. This chapter also explains motor coil resistance, Sensor specification and error indication.

START

UNIT-LEVEL TROUBLESHOOTING

UNIT REPAIR

ASSEMBLY AND ADJUSTMENT

END

Figure 1-1. Troubleshooting Flowchart

Table 1-1. Motor, Coil Resistance

Motor Location Check Point Resistance

PF Motor

(Same as ASF/

Pump Motor)

CN9

Pin 1 and 3 Pin 2 and 4

3.0Ω ±10%

(25°C/phase)

Since CR Motor and APG Motor are DC motors, the resistance value among the electric poles varies. Therefore, the values cannot be used to judge the abnormality. The only way to judge it is visible status like if the motor rotates or not. Naturally the accurate judgement is impossible, so replace the motor when it is suspected.

Table 1-2. Sensor check point

Sensor name Location Check point Signal level Switch mode

Off : No paper

On : Detect paper

Off : Anywhere of PG

On : In process of switching PG

On : ASF mode

Off : CDR mode

Off : No CDR Tray

On : Detect CDR Tray

PE Sensor CN4 Pin 1 and 2

PG Sensor CN5 Pin 1 and 2

Star Wheel

Sensor

CDR Sensor CN6 Pin 3 and 4

CN6 Pin 1 and 2

More than 2.4V

Less than 0.4V

More than 2.4V

Less than 0.4V

TROUBLESHOOTING Overview 8

EPSON Stylus Photo R320 Revision B

1.2 Troubleshooting with LED/LCD Indications and Status Monitor 3 Message

This section describes the LED/LCD indication, the STM3 message and the error condition when the printer detects an error in each operation such as the power on, the paper loading/feeding and the ink absorption operation.

Table 1-3. LED/LCD Indication and STM3

Printer status

Communication Error -- --

Ink Low Condition Blink (Ink icon blinks)

Maintenance

LED indication

LCD indication STM3 message Condition for error detection

This error is detected when the printer cannot communicate with the PC properly.

This error is detected when the ink consumption reaches about 90%.

(Note) When the Ink Low Condition is detected, the Maintenance LED will blink. The printer will continue to keep this LED status even if a new Ink Cartridge is installed in the Ink Cartridge replacement position. However, this LED status will be reset (LED off) when "Carriage Unit" returns to the home position.

Note : Printing operation can be performed until it becomes ink end condition even after the error message is displayed on STM3. However, the Head Cleaning operation may not be performed due to the Ink Low condition.

TROUBLESHOOTING Troubleshooting with LED/LCD Indications and Status Monitor 3 Message 9

EPSON Stylus Photo R320 Revision B

Table 1-3. LED/LCD Indication and STM3

Printer status

Ink Out Error On

Maintenance

LED indication

LCD indication STM3 message Condition for error detection

Ink out Black: T0481 For best results, use genuine EPSON ink.

Ink cartridges cannot be recognized Cyan: T0482 For best results, use genuine EPSON ink.

This error is detected in either of the following cases.

1. The ink consumption reached 100%.

2. The Ink Cartridge is faulty. (CSIC memory data error)

(Note) Even in the Ink Out Error status, a small amount of ink still remains in the Ink Cartridge to protect the Print Head from printing without ink.

This error is detected when the Ink Cartridge has not installed, or not installed properly.

No Ink Cartridge Blink

Ink cartridges cannot be recognized Light Cyan: T0485 For best results, use genuine EPSON ink.

This error is detected when the printer cannot read and write the CSIC information of the installed Ink Cartridge.

TROUBLESHOOTING Troubleshooting with LED/LCD Indications and Status Monitor 3 Message 10

EPSON Stylus Photo R320 Revision B

Table 1-3. LED/LCD Indication and STM3

Printer status

Paper Out Error On

Paper Jam Error

(Including CD/DVD)

Maintenance

LED indication

LCD indication STM3 message Condition for error detection

Paper load error. Load correctly and press Maintenance.

A paper jam has occurred. See your printer's documentation for information about clearing the jam.

This error is detected when the leading edge of paper cannot be detected with the PE Sensor in a paper loading.

This error is detected when ;

1. The posterior end of paper cannot be correctly detected with the PE Sensor in a paper loading.

2. The rear of CD/DVD cannot be correctly detected with the Star Wheel/CDR Sensor in a CD/DVD loading.

This error is detected when the value of the Waste Ink Pad Counter A set in EEPROM reaches its limit (Variable between 20000 and 46750 points).

Maintenance Request On

Service required. Printer parts are at end of service life. See printer manual for details.

TROUBLESHOOTING Troubleshooting with LED/LCD Indications and Status Monitor 3 Message 11

EPSON Stylus Photo R320 Revision B

Table 1-3. LED/LCD Indication and STM3

Printer status

CD/DVD Guide Error On

CD/DVD Tray Error On

Maintenance

LED indication

LCD indication STM3 message Condition for error detection

Close the CD/DVD guide.

The CD/DVD tray load error. Reload tray and press Maintenance.

This error is detected when ;

1. Paper is present in "ASF Assy.", and "CDR Guide Assy." is open while receiving print data.

2. "CDR Guide Assy." opens while printing.

3. "CDR Guide Assy." is open while receiving ASF paper feed data.

4. Attempting to replace the ink while "CDR Guide Assy." is open.

This error is detected when "CD/DVD Tray" cannot be detected when printing CD/DVD.

Memory Card Error

(Non supported

Memory Card)

Bluetooth Module Error On

Irregular external device Blink

The inserted card cannot be used with this printer.

Bluetooth Photo Print Adapter error. Disconnect the Adapter from the printer, then reconnect it.

The connected device cannot be used. (The warning is displayed for one second every 3 seconds.)

No Display

This error is detected when nonstandardized Memory Card is inserted.

This error is detected when there is no response from Bluetooth Module.

This error is detected when some non supported device is connected to the port for the external memory device.

TROUBLESHOOTING Troubleshooting with LED/LCD Indications and Status Monitor 3 Message 12

EPSON Stylus Photo R320 Revision B

Table 1-3. LED/LCD Indication and STM3

Printer status

Fatal error On

Maintenance

LED indication

LCD indication STM3 message Condition for error detection

System error. Press and hold both Power and Stop buttons for 7 seconds.

This error is detected when ;

1. "Carriage Unit" cannot move correctly by the external force in each operation.

2. "PF Motor" cannot rotate correctly while "PF Motor" operates.

TROUBLESHOOTING Troubleshooting with LED/LCD Indications and Status Monitor 3 Message 13

EPSON Stylus Photo R320 Revision B

1.3 Unit Level Troubleshooting

You can identify the troubles by using the checklist in this section aft er con fir min g th e LED/LCD indication on the control panel or the error message displayed on STM3 of the PC connected to the printer. As a result, you can save the whole repair time. When finding any faulty parts, refer to Chapter 2 "ASSEMBLY/DISASSEMBLY" and replace them. Following tables describe the error conditions (LED/LCD and STM3) and their possible cause.

Table 1-4. Check Points for Communication Error to Each Phenomenon

Occurrence Timing

Position of CR

At power-on

Anywhere

At operation

Phenomenon Detail

When turning the power on, the printer does not operate at all.

When turning the power on, the initialization is performed correctly. However, a Communication Error is displayed on STM3 even transferring the printing job to the printer.

Faulty Part/

Part Name

Power Supply

Board

Main Board

USB Cable

Printer Driver

1. Check if "Power Supply Board Cable" is connected to the CN2 on "Main Board".

2. Check if "Power Supply Board Cable" is not damaged.

1. Check if the correct mode l name is wr itten in EEPROM on "Main Board".

1. Check if "USB Cable" is connected properly between the printer and the PC.

1. Check if the Stylus Photo R320 Printer Driver is used for the printer job.

The following is the example of how to use the tables. Example) When "Carriage Unit" is out of the home position at the power on timing,

the Fatal Error may be caused by the failure of "CR Motor". Moreover, there are 3 possible causes on "CR Motor" failure.

(Note) When individual part that makes up "Roller EJ Assy.", "PF Motor" and "Ink System Assy." is defective, replace the Printer Mechanism with a new one basically. However, if an individual part needs to be replaced urgently, execute the necessary operation by referring to Chapter 2 "ASSEMBLY/DISASSEMBLY".

Check Point Remedy

1. Connect "Power Supply Board cable" to the CN2 on "Main Board".

2. Replace "Power Supply Board" with a new one.

* If the problem still occurs, replace "Main

Board".

1. Write proper Market Setting to the EEPROM using the Adjustment Program.

1. Connect the printer and the PC with a "USB Cable".

1. Install the Stylus Photo R320 Printer Driver on the PC.

TROUBLESHOOTING Unit Level Troubleshooting 14

EPSON Stylus Photo R320 Revision B

Table 1-5. Check Points for Error Before the Initial Ink Charge, Error Before Ink Cartridge Replacement Cleaning and No Ink Cartridge Error

Occurrence Timing

Position of CR

At power-on

At HP

At power-on

Anywhere

Occurrence Timing

Position of CR

Phenomenon Detail

The printer does not perform the Initial Ink Charge and the error is displayed on LED and STM3.

The printer does not perform the Ink Replacement Cleaning and the error is displayed on LED and STM3.

The printer does not perform any print operation and the error is displayed on LED and STM3.

Table 1-6. Check Points for Paper Out Error to Each Phenomenon

Phenomenon Detail

Faulty Part/

Part Name

Ink Cartridge

Main Board

Ink Cartridge

Faulty Part/

Part Name

Check Point Remedy

1. Check if the Ink Cartridge is normal by installing it in another printer.

1. Check if the correct data has been written in the address 5B<H> of EEPROM on "Main Board". (You cannot check it only with the Adjustment Program of Stylus Photo R320.)

1. Check if the Ink Cartridge is normal by installing it in another printer.

1. Check if ink still remains in the Ink Cartridge.

2. Check if the Ink Cartridge is normal by installing it in another printer.

Check Point Remedy

1. Check if "Hopper" works properly while feeding paper. 1. Reassemble "ASF Frame" and "Compression

1. Replace the Ink Cartridge with a new one.

1. Write proper Market Setting to the EEPROM using the Adjustment Program.

1. Replace the Ink Cartridge with a new one.

2. Replace the Ink Cartridge with a new one.

Spring, 2.51" correctly.

Compression Spring, 2.51

At operation

"Holder, Shaft, LD Roller" rotates to feed paper, but "Hopper" does not operate.

ASF Assy.

TROUBLESHOOTING Unit Level Troubleshooting 15

EPSON Stylus Photo R320 Revision B

Table 1-6. Check Points for Paper Out Error to Each Phenomenon

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

When feeding paper, the leading edge of paper is detected properly, but the paper is ejected without being set at the print start position.

"PF Motor" and "Spur Gear, 37.242" rotate properly, but "Holder, Shaft, LD Roller" does not feed paper. (The driving of "PF Motor" is not transmitted to "Holder, Shaft, LD Roller".)

Faulty Part/

Part Name

ASF Assy.

Holder, Shaft,

LD Roller

Check Point Remedy

1. Check if "Roller, Retard Assy." operates properly while feeding paper.

1. Check if "Extension Spring,0.143" in "Clutch Mechanism" has not come off.

2. Check if "Clutch" has not come off from the dowel of "Shaft, LD Roller".

3. Check if "Clutch Tooth" is not damaged.

Extension Spring, 0.143

Clutch Tooth

1. Reassemble "Extension Spring, 0.45" located the rear side of "Roller, Retard Assy.".

Extension

Spring, 0.45

1. Reassemble "Extension Spring, 0.143" in "Clutch Mechanism".

2. Reassemble the round portion of "Clutch" on the dowel of "Shaft, LD Roller".

3. Replace "Holder, Shaft, LD Rolle r" with a new one.

Dowel of "Holder, Shaft, LD Roller"

4. Check if "Clutch" is not damaged.

4. Replace "Holder, Shaft, LD Rolle r" with a new one.

Paper Guide,

Upper

1. Check if "Paper Guide, Upper" (only HP side) has not come off from "Main Frame".

1. Reassemble "Paper Guide, Upper" to "Main Frame".

(Only HP side)

TROUBLESHOOTING Unit Level Troubleshooting 16

EPSON Stylus Photo R320 Revision B

Table 1-6. Check Points for Paper Out Error to Each Phenomenon

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

"PF Motor" and "Spur Gear, 37.242" rotate properly, but "Holder, Shaft, LD Roller" does not feed paper. (The drive of "PF Motor" is not transmitted to "Holder, Shaft, LD Roller".)

"Holder, Shaft, LD Roller" is not set in the ASF home position and paper is always fed from "ASF Assy.".

"Holder, Shaft, LD Roller" does not feed paper during the feeding operation. "PF Motor" and "Spur Gear, 37.242" also does not rotate at all.

Faulty Part/

Part Name

Ink System

PF Motor*

Check Point Remedy

1. Check if "Compression Spring, 2.36" of "Lever, Change" does not come off.

Lever, Change

Compression Spring, 2.36

1. Check if the tip of "Lever, Change" is damaged. 1. Replace "Ink System" with a new one.

1. Check if "PC Connector Cable" is connected to CN9 on "Main Board".

2. Check if the coil resistance of "PF Motor" is approximately 3.0Ω with a tester. Refer to Table 1-1.

3. Check if "PF Motor Connector Cable" is damaged.

1. Check if the surface of "LD Roller" is contaminated wi th paper dust.

1. Replace "Ink System" with a new one.

1. Connect "PF Motor Connector Cable" to CN9 on "Main Board".

2. Replace "PF Motor" with a new one.

3. Replace "PF Motor" with a new one.

1. Remove the dust by using a soft brush or soft cloth moistened with alcohol.

* If the problem is not solved, replace "LD

At operation

"Holder, Shaft, LD Roller" rotates properly, but paper is not fed.

Holder, Shaft

LD Roller

Roller" with a new one.

TROUBLESHOOTING Unit Level Troubleshooting 17

EPSON Stylus Photo R320 Revision B

Table 1-7. Check Points for Paper Jam Error to Each Phenomenon

Occurrence

Timing

Position of CR

At power-on

Anywhere

Phenomenon Detail

"PF Motor" does not work at all. PF Motor

Paper feeding operation is performed normally, but paper is not sent into the printer.

Faulty Part/

Part Name

ASF Assy.

Check Point Remedy

1. Check if "PF Motor Connector Cable" is connected to CN9 on "Main Board".

2. Check if the coil resistance of "PF Motor" is approximately 3.0Ω with a tester. Refer to Table 1-1.

3. Check if "PF Motor Connector Cable" is damaged.

1. Check if "Roller, Retard Assy." operates properly while feeding paper.

1. Check if "Torsion Spring, 0.22" is not unfastened from "PE Sensor Lever".

1. Connect "PF Motor Connector Cable" to CN9 on "Main Board".

2. Replace "PF Motor" with a new one.

3. Replace "PF Motor" with a new one.

1. Reassemble "Extension Spring, 0.45" located rear side of "Roller, Retard Assy.".

Extension

Spring, 0.45

1. Reassemble "Torsion Spring, 0.22"

PE Sensor

Torsion Spring, 0.22

2. Check if "PE Sensor Cable" is not unfastened.

3. Check if "PE Sensor Cable" is correctly mounted on "Holder, Shaft, LD Roller".

4. Check if "PE Sensor Cable" is not damaged.

2. Connect "PE Sensor" Connector to CN4 on "Main Board".

3. Remount "PE Sensor Cable" correctly.

4. Replace "PE Sensor" with a new one.

TROUBLESHOOTING Unit Level Troubleshooting 18

EPSON Stylus Photo R320 Revision B

Table 1-7. Check Points for Paper Jam Error to Each Phenomenon

Occurrence

Timing

Position of CR

At operation

Out of HP

At operation

Phenomenon Detail

"Carriage Unit" moves to the home position properly when turning on the power. Then paper feeding operation is performed normally, but paper is not sent into the printer.

When feeding paper, the leading edge of paper is detected properly, but the paper is ejected without being set at the print start position. At this time, the next paper is fed to "PE Sensor Lever".

Faulty Part/

Part Name

PE Sensor*

ASF Assy.

Frame EJ Assy.**

Paper Guide, Front

Check Point Remedy

1. Check if "Torsion Spring, 0.22" for "PE Sensor Lever" is not unfastened.

2. Check if "PE Sensor Cable" is correctly mounted on "Holder, Shaft, LD Roller".

1. Check if "Roller, Retard Assy." operates properly while feeding paper.

1. Check if "Star Wheels" have not come off.

2. Check if "Frame EJ Assy." is correctly as s embled.

3. Check if "Frame EJ Assy." is not transformed downward.

1. Check if "Porous pad" of "Paper Guide, Front" has not come off.

1. Reassemble "Torsion Spring, 0.22".

2. Remount "PE Sensor Cable" correctly.

1. Reassemble "Extension Spring, 0.45" back of "Roller, Retard Assy."

Extension

Spring, 0.45

1. Reassemble "Star Wheels" correctly.

2. Reassemble "Frame EJ Assy." correctly.

3. Replace "Frame EJ Assy." with a new one.

1. Remount "Porous pad" correctly.

The leading edge of paper does not go through between "Roller EJ Assy." and "Star Wheels".

1. Check if "Roller EJ Assy." is correctly assembled.

2. Check if "Spur Gear, 41.48" has not come off.

Roller EJ Assy.

Spur Gear, 41.48

1. Reassemble "Roller EJ Assy." correctly onto "Printer Mechanism".

2. Reattach "Spur Gear, 41.48" to "Roller EJ Assy." correctly.

TROUBLESHOOTING Unit Level Troubleshooting 19

EPSON Stylus Photo R320 Revision B

Table 1-7. Check Points for Paper Jam Error to Each Phenomenon

Occurrence

Timing

Position of CR

At operation

* "Carriage Unit" can move to the home position even if "Extension Spring, 0.22" has come off or "PE Sensor" is not set in the correct position. However, in the next operation, a Paper Jam Error

will be detected since "PE Sensor Lever" will maintain the High signal status.

** There some cases where the jammed paper may damage "Print Head" by contacting the surface of "Print Head nozzle" when a Paper Jam Error occurs in each operation.

The leading edge of paper is not sent to "PF Roller".

Phenomenon Detail

Faulty Part/

Part Name

Paper Guide,

Upper

Check Point Remedy

1. Check if "Paper Guide, Upper" has not come off from "Main Frame".

Paper Guide, Upper

1. Reattach "Paper Guide, Upper" to "Main Frame".

TROUBLESHOOTING Unit Level Troubleshooting 20

EPSON Stylus Photo R320 Revision B

Table 1-8. Check Points for CD/DVD Guide Error to Each Phenomenon

Occurrence Timing

Position of CR

At power-on

At HP

Phenomenon Detail

An error occurs even if "CDR Guide Assy." is closed when turning on the power.

Faulty Part/

Part Name

Housing, Middle

Star Wheel/

CDR Sensor

Check Point Remedy

1. Check if the contact point of "Housing, Middle" with "Star Wheel/CDR Sensor" is cracked.

Contact

point

1. Check if "Star Wheel/CDR Sensor" is connected to CN6 on "Main Board".

Star Wheel/CDR Sensor

1. Replace "Housing, Middle" with a new one.

1. Connect "Star Wheel/CDR Sensor" to CN6 on "Main Board".

Main Board

2. Check if "Star Wheel/CDR Sensor" is damaged.

3. Check if "Star Wheel/CDR Sensor" cable is cut off.

1. Check if any device on "Main Board" is damaged. 1. Replace "Main Board" with a new one.

2. Replace "Star Wheel/CDR Sensor" with a new one.

3. Replace "Star Wheel/CDR Sensor" with a new one.

TROUBLESHOOTING Unit Level Troubleshooting 21

EPSON Stylus Photo R320 Revision B

Table 1-9. Check Points for CD/DVD Tray Error to Each Phenomenon

Occurrence Timing

Position of CR

When printing

CDR/DVDR

Phenomenon Detail

An error occurs even though "CDR Tray" is set when printing CDR/DVDR.

Faulty Part/

Part Name

CDR Tray

CDR Tray Sensor

Check Point Remedy

1. Check if the contact point of "CDR Tray" with "CDR Tray Sensor" is cracked.

Contact point

1. Check if "CDR Tray Sensor" is connected to CN6 on "Main Board".

CDR Tray Sensor

2. Check if "CDR Tray Sensor" is damaged.

1. Replace "CDR Tray" with a new one.

1. Connect "CDR Tray Sensor" to CN6 on "Main Board".

2. Replace "CDR Tray Sensor" with a new one.

Main Board

3. Check if "CDR Tray Sensor Connector Cable" is cut off.

1. Check if any device on "Main Board" is damaged. 1. Replace "Main Board" with a new one.

3. Replace "CDR Tray Sensor" with a new one.

TROUBLESHOOTING Unit Level Troubleshooting 22

EPSON Stylus Photo R320 Revision B

Table 1-10. Check points for Memory Card Error to Each Phenomenon

Occurrence Timing

Position of CR

When inserting

Memory Card

Phenomenon Detail

The Memory Card is not detected, and an error is displayed on LED and STM3.

Faulty Part/

Part Name

Memory Card

Main Board

Check Point Remedy

1. Check if the Memory Card is compliant.

2. Check if the Memory Card is damaged.

1. Check if there is any damage on the slot pin of the loading slot for Memory Cards.

2. Check if any elements on "Main Board" is damaged.

1. Replace the Memory Card with a compliant one.

2. Replace the Memory Card with a new one.

1. Replace "Main Board" with a new one.

2. Replace "Main Board" with a new one.

TROUBLESHOOTING Unit Level Troubleshooting 23

EPSON Stylus Photo R320 Revision B

Table 1-11. Check Points for Fatal Error to Each Phenomenon

Occurrence Timing

Position of CR

At power-on

Out of HP

Phenomenon Detail

"CR Motor" does not work at all when turning on the power.

"Carriage Unit" strikes on "Lever, Change" because the lever is leaning forward when turning on the power.

Faulty Part/

Part Name

CR Motor

PF Motor

Ink System

Check Point Remedy

1. Check if "CR Motor Connector Cable" is connected to CN8 on "Main Board".

2. Check if "CR Motor Connector Cable" is damaged.

1. Check if "PF Motor Connector Cable" is connected to CN9 on "Main Board".

2. Check if the resistance of "PF Motor" is approximately

3.0Ω using a tester. Refer to Table 1-1.

3. Check if "PF Motor Connector Cable" is damaged.

1. Check if "Compression Spring, 2.36" of "Lever, Change" has not come off.

Lever, Change

Compression Spring, 2.36

1. Check if "Paper Guide, Upper" has come off from "Main Frame".

1. Connect "CR Motor Connector Cable" to CN8 on "Main Board".

2. Replace "CR Motor" with a new one.

1. Connect "PF Motor Connector Cable" to CN9 on "Main Board".

2. Replace "PF Motor" with a new one.

3. Replace "PF Motor" with a new one.

1. Replace "Ink System" with a new one.

1. Reassemble "Paper Guide, Upper" to "Main Frame".

Paper Guide, Upper

1. Reassemble "CR Scale" correctly. * If the problem is not solved, replace

"Main Board" with a new one.

At power-on

Anywhere

"Carriage Unit" strikes on "Paper Guide, Upper" which has come off from "Main Frame" when turning on the power.

"Carriage Unit" strikes on the right side of "Main Frame" when turning on the power.

Paper Guide,

Upper

CR Scale

1. Check if "CR Scale" has come off, or it properly passes through the slit of "CR Encoder Sensor Board".

TROUBLESHOOTING Unit Level Troubleshooting 24

EPSON Stylus Photo R320 Revision B

Table 1-12. Check Points When More Than One Paper is Fed Constantly Without LED/STM3's Error Notifications

Occurrence Timing

Position of CR

At operation

Occurrence Timing

Position of CR

Phenomenon Detail

The printer always feeds more than one sheet of paper at a time without LED/ STM3's error notifications.

Phenomenon Detail

Makes abnormal sound in spite of the normal print operation at the first power on or some other time.

Faulty Part/

Part Name

1. Check if "Roller, Retard Assy." works correctly while feeding paper.

ASF Assy.

Check Point Remedy

Table 1-13. Check Points for Abnormal Sound

Faulty Part/

Part Name

Carriage Unit

Ink System

1. Check if there is enough grease on "CR Guide Shaft". 1. Wipe the remaining grease off on "CR Guide

1. Check if "Lever, Change" moves smoothly. 1. Replace "Ink System" with a new one.

Check Point Remedy

1. Reassemble "Extension Spring, 0.45" on the back of "Roller, Retard Assy."

Extension Spring,

0.45

Shaft" and then lubricate it.

Any time

Anywhere

The bottom of "Carriage Unit" touches the surface of "Front Frame".

"Carriage Unit" strikes on "Paper Guide, Upper" while "Carriage Unit" is working.

Frame EJ Assy.

Paper Guide,

Upper

1. Check if "Frame EJ Assy." is not warping upward. 1. Replace "Frame EJ Assy." with a new one.

1. Check if "Paper Guide, Upper" has come off from "Main Frame".

1. Reassemble "Paper Guide, Upper" to "Main Frame".

TROUBLESHOOTING Unit Level Troubleshooting 25

EPSON Stylus Photo R320 Revision B

Table 1-14. Check Points for Defective Print Quality

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

[Phenomenon 1] When the printer is performing the Cleaning task, the ink is not drained into "Waste Ink Pad" in spite of the correct function of "Pump Unit". The ink from "Print Head" is not absorbed in the Cap at all.

[Phenomenon 2] When the printer is performing the

Cleaning task, the ink is drained into "Waste Ink Pad". (This indicates that both of "Pump Unit" and "Cap Unit" are working correctly.) However, missing dots is not solved at certain nozzles even performing the Cleaning several times.

[Phenomenon 3] When the printer is performing the Cleaning task, the ink is drained into "Waste Ink Pad". (This indicates that both of "Pump Unit" and "Cap Unit" work correctly.) However, the wiping function is not executed correctly and irregular colors appear on the printed sheet.

Faulty Part/

Part Name

Ink System

Check Point Remedy

1. Check if there is any foreign matter on the sealing rubber on "Cap Unit".

Sealing rubber

2. Check if the sealing rubber on "Cap Unit" is damaged.

3. Check if "Compression Spring, 2.53" is properly attached in "Cap Unit".

Compression

Spring, 2.53

4. Check if "Pump Tube" is properly connected to the bottom of "Cap Unit".

Contact point of

Pump Tube

1. Remove the foreign matter from the sealing rubber.

2. Replace "Ink System" with a new one.

3. Replace "Ink System" with a new one.

4. Replace "Ink System" with a new one.

[Phenomenon 4] When the printer is performing the Cleaning task, the ink is drained into "Waste Ink Pad". However, some

5. Check if "Extension Spring, 0.788" has come off from "Slider Cap".

6. Check if "Extension Spring, 0.441" has come off from "Slider Lock Lever".

5. Reassemble "Extension Spring, 0.788" correctly.

6. Reassemble "Extension Spring, 0.441" correctly.

missing dots occurs while printing. [Phenomenon 5]

Extension Spring, 0.441

When the printer is performing the Cleaning task, the ink is drained into "Waste Ink Pad". However, missing dot occurs and the place where it occurs varies in every movement of the

Extension Spring, 0.788

Cleaning.

TROUBLESHOOTING Unit Level Troubleshooting 26

EPSON Stylus Photo R320 Revision B

Table 1-14. Check Points for Defective Print Quality

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

[Phenomenon 6] When the Cleaning is performed, the ink is drained into "Waste Ink Pad". However, missing dots and misalignment occur at all nozzles. They are not solved by executing the Cleaning several times.

* If the problem is not solved,

replace "Main Board" with a new one.

Striped pattern appears in a direction perpendicular to "Carriage Unit" movement.

Direction of

CR movement

Faulty Part/

Part Name

Ink System

Ink Cartridge

Print Head

Carriage Unit

Check Point Remedy

7. Check if "Slider Lock Lever" is damaged. 7. Replace "Ink System" with a new one.

1. Check if ink still remains in Ink Cartridge 1. Replace the Ink Cartridge with a new one.

1. Check if there is any foreign matter on the nozzle surface of "Print Head".

2. Check if "Head FFC" is connected to CN7 and CN8 on "Main Board", or to the board on "Print Head".

3. Check if "Head FFC" is damaged.

4. Check if each segment prints correctly with the Nozzle Check Pattern.

1. Check if there is foreign matter on the surface of "CR Guide Shaft".

2. Check if there is damage on the surface of "CR Guide Shaft".

3. Check if there is enough grease on the surface of "CR Guide Shaft".

4. Check if "CR Guide Shaft" is properly connected to "Main Frame" with the fixing spring of "CR Guide Shaft".

1. Perform the wiping operation. Replace "Wiper" when "Wiper" is deformed or contaminated awfully.

2. Securely connect "Head FFC" to "Main Board" or the board on "Print Head".

3. Replace "Head FFC" with a new one.

4. Perform Head Cleaning and check the Nozzle Check Pattern.

* If the problem is not solved, replace "Print

Head" with a new one.

1. Remove the foreign matter on "CR Guide Shaft".

2. Replace "CR Guide Shaft" with a new one.

3. Wipe the surface of "CR Guide Shaft" with a dry soft cloth, and then apply G-63 to it. Refer to Section 4.1.3.

4. Reassemble "CR Guide Shaft" correctly.

(Note) If the problem is not solved, replace "CR Motor" with a new one.

TROUBLESHOOTING Unit Level Troubleshooting 27

EPSON Stylus Photo R320 Revision B

Table 1-14. Check Points for Defective Print Quality

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

Striped pattern appears in a direction perpendicular to "Carriage Unit" movement.

Striped pattern appears in a direction horizontally to "Carriage Unit" movement.

Direction of

CR movement

(Note) If the problem is not solved, replace "PF Motor" with a new one.

Irregular lines appear in a direction horizontally to "Carriage Unit" movement.

Faulty Part/

Part Name

Frame EJ Assy.

Print Head

PF Roller

Printer Driver and

Special Paper

Print Head

Check Point Remedy

1. Check if the surface of "Frame EJ Assy." is precisely horizontal.

1. Check if "Print Head" prints correctly with the Nozzle Check Pattern.

1. Check if there is any foreign matter on the surface of "PF Roller".

2. Check if "PF Roller" is damaged.

3. Check if "Spur Gear, 37.242" is damaged or broken.

1. Check if appropriate paper is used in accordance with the Printer Driver settings.

1. Check if "Print Head" prints correctly with the Nozzle Check Pattern.

1. Check if "Porous pad" in front of "Paper Guide, Front" has not come off.

1. Replace "Frame EJ Assy." with a new one.

1. Perform the Head Cleaning, then check the Nozzle Check Pattern.

* If the problem is not solved, replace "Print

Head" with a new one.

1. Clean the surface of "PF Roller".

2. Replace "Printer Mechanism" with a new one.

3. Replace "Printer Mechanism" with a new one.

1. Use the appropriate type of paper in accordance with the Printer Driver.

1. Perform the Head Cleaning, then check the Nozzle Check Pattern.

* If the problem is not solved, replace "Print

Head" with a new one.

1. Reattach "Porous pad".

Paper Guide, Front

These lines appear when the print paths overlap each other.

TROUBLESHOOTING Unit Level Troubleshooting 28

EPSON Stylus Photo R320 Revision B

Table 1-14. Check Points for Defective Print Quality

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

Traces of "Star Wheels" appear in a direction perpendicular to "Carriage Unit" movement.

Normal printing task is performed; however, the top margin is less than usual.

The print is light and thin.

Faulty Part/

Part Name

Frame EJ Assy.

Roller EJ Assy.

Holder, Shaft,

LD Roller

Printer Driver and

Special Paper

Print Head

Check Point Remedy

1. Check if "Star Wheels" have come off.

2. Check if the surface of "Frame EJ Assy." is mounted horizontally.

1. Check if "Roller EJ Assy." has come off from "Printer Mechanism".

1. Check if any paper dust has adhered to the surface of "LD Roller".

LD Roller

1. Check if appropriate paper is used in accordance with the Printer Driver settings.

1. Check if the correct Head ID has been input in EEPROM by using the Adjustment Program.

1. Reassemble "Star Wheels" correctly.

2. Replace "Frame EJ Assy." with a new one.

1. Reassemble "Roller EJ Assy." correctly.

1. Remove the dust by using a soft brush or soft cloth moistened with alcohol.

* If the problem is not solved, replace

"Holder, Shaft, LD Roller" with a new one.

1. Use the appropriate type of paper in accordance with the Printer Driver settings.

1. Input 15-digit ID code of the Head ID in EEPROM by using the Adjustment Program

TROUBLESHOOTING Unit Level Troubleshooting 29

EPSON Stylus Photo R320 Revision B

Table 1-14. Check Points for Defective Print Quality

Occurrence Timing

Position of CR

At operation

Phenomenon Detail

The paper is stained with the ink.

The upper edge of the paper gets creased.

Faulty Part/

Part Name

Frame EJ Assy.

Paper Guide, Front

Roller EJ Assy.

Paper Guide,

Upper

PF Roller

Ink System

Print Head

ASF Assy.

Check Point Remedy

1. Check if there is any ink adhesion on "Frame EJ Assy.". 1. Clean the ink adhesion on "Frame EJ Assy." with a soft cloth.

1. Check if "Frame EJ Assy." has warped upward. 1. Replace "Frame EJ Assy." with a new one.

1. Check if there is any ink adhesion on "Paper Guide,

Front".

2. Check if "Porous pad" of "Paper Guide, Front" has come

off.

1. Check if there is any ink adhesion on "Roller EJ Assy.". 1. Clean the ink adhesion on "Roller EJ Assy."

1. Check if there is any ink adhesion on "Paper Guide,

Upper".

1. Check if there is any ink adhesion on "PF Roller". 1. Clean the ink adhesion on "PF Roller" with a

1. Check if the wiping operation has been performed

correctly.

1. Check if there is any ink adhesion on "Print Head Cover". 1. Clean the ink adhesion on "Print Head Cover"

1. Check if "Hopper Pad" is stuck to "Hopper" correctly. 1. Replace "ASF Assy." with a new one.

1. Clean the ink adhesion on "Paper Guide, Front" with a soft cloth.

2. Reattach "Porous pad".

with a soft cloth.

1. Clean the ink adhesion on "Paper Guide, Upper" with a soft cloth.

soft cloth.

1. Replace "Ink System" with a new one.

with a soft cloth.

TROUBLESHOOTING Unit Level Troubleshooting 30

DISASSEMBLY AND ASSEMBLY

CHAPTER

EPSON Stylus Photo R320 Revision B

2.1 Overview

 Avant de commencer, assure vous que l’imprimante soit eteinte

et que le cordon d’alimentation soit debranche.

 Veillez a jeter les piles usagees selon le reglement local.

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.

 When transporting the printer after installing the ink cartridge,

be sure to pack the printer without removing the ink cartridge and secure the cartridge to the main body with adhesive tape.

 Use only recommended tools for disassembling, assembling or

adjusting the printer. (Refer to Table 2-1 "Tool List".)

 Observe the specified torque when tightening screws.  Use the specified lubricants and adhesives. (Refer to Chapter 4

for details.)

 Make the specified adjustments when you disassemble the

printer. (Refer to Chapter 3 for details.)

This section describes procedures for disassembling the main components of Stylus Photo R320. Unless otherwise specified, disassembled units or components can be reassembled by reversing the disassembly procedure.

"WARNING" indicates procedures which may result in damage, injury or involving human lives if you don't take extra care. "CAUTION" indicates precautions for any disassembly or assembly procedures. "CHECK POINT" indicates points to be checked. "REASSEMBLY" indicates reassembling procedures which are different from the reverse order of the disassembling. "ADJUSTMENT REQUIRED" indicates required adjustments after the assembly and the disassembly.

Read precautions described in the next section before starting.

2.1.1 Precautions

Before starting the disassembling/reassembling work of this product, the following "WARNING" and "CAUTION" should always be observed carefully.

W A R N I N G

 Disconnect the power cable before disassembling or assembling

the printer.

 If you need to work on the printer with power applied, strictly

follow the instructions in this manual.

 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.

 Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

 To protect sensitive microprocessors and circuitry, use static

discharge equipment, such as anti-static wrist straps, when accessing internal components.

 Never touch the ink or wasted ink with bare hands. If ink comes

into contact with your skin, wash it off with soap and water immediately. If you have a skin irritation, consult a physician.

 When reassembling the waste ink pads and tray, always make

sure that the waste ink tube is fitted correctly in the specified place. Fitting the ink tube in other than the specified position could cause ink leakage.

W A R N I N G

C A U T I O N

DISASSEMBLY AND ASSEMBLY Overview 32

EPSON Stylus Photo R320 Revision B

2.1.2 Tools

Use only specified tools to avoid damaging the printer.

Table 2-1. Tools

Tool Name Supplier Code

Phillips Screw Driver (No. 0) EPSON 1080531 Phillips Screw Driver (No. 1) EPSON 1080530 Phillips Screw Driver (No. 2) EPSON 1080532 Tweezers EPSON 1080561 Acetate Tape EPSON 1003963

2.1.3 Pre-Shipment Checks

When returning this product to the user after servicing, check that the work is complete using the following table.

Table 2-2. Service Completion Pre-Shipment Check List

Classification Item Check Point Status

 Checked  Not necessary

Main Unit

Adjustment

Self-test Is the operation normal?

On-line Test Is the printing successful?

Print Head

Carriage Mechanism

Paper Feeding Mechanism

Specified Adjustment

Is ink discharged normally from all the nozzles?

Does it move smoothly?

Is there any abnormal noise during its operation?

Is there any dirt or foreign objects on the CR Guide Shaft?

Is the CR Motor at the correct temperature? (Not too heated?)

• Is paper fed smoothly?

• No paper jamming?

• No paper skew?

• No multiple feeding?

• No abnormal noise? Is the PF Motor at correct

temperature? Is the paper path free of any

obstructions? Are all the adjustment done

correctly?

DISASSEMBLY AND ASSEMBLY Overview 33

EPSON Stylus Photo R320 Revision B

Table 2-2. Service Completion Pre-Shipment Check List

Classification Item Check Point Status

 Checked  Not necessary

Lubrication

Function ROM Version

Packing

Others

Specified Lubrication

Ink Cartridge

Protective Materials

Attachments, Accessories

Are all the lubrication made at the specified points?

Is the amount of lubrication correct?

Is it the latest version? Version:

Are the ink cartridges installed correctly?

Have all relevant protective materials been attached to the printer?

Have all of the accessories been included in the package?

DISASSEMBLY AND ASSEMBLY Overview 34

EPSON Stylus Photo R320 Revision B

2.2 Caution regarding assembling/disassembling the printer mechanism, and how to ensure the quality of reassembled product

For the existing Low End models, it is basically forbidden to remove "Housing, Lower" from "Printer Mechanism". This is because the strength of "Frame, Main" is not strong enough, therefore, "Frame, Main" may be transformed when removing/ reinstalling it from/to "Housing, Lower". For that reason, when replacing "Ink System" or "PF Motor", it is recommended to replace not only "Housing, Lower" but also "Printer Mechanism".

For this printer, "Housing, Lower" needs to be removed from "Printer Mechanism" when replacing "Waste ink Pads" or "Ink System". Therefore, this chapter specifies the disassembly/assembly of "Printer Mechanism" which "Housing, Lower" has been taken out in order to secure the quality of the repaired items.

 Caution for disassembly/assembly of Printer Mechanism

1. "Printer Mechanism" with "Housing, Lower"

• Do not hold "Guide Plate, CR" ⇒ Transforming of "Frame, Main" and "Guide Plate, CR" may give some bad influence to PG or printing.

• Do not touch "CR Guide Shaft" and the surface of the head nozzle.

2. "Printer Mechanism" without "Housing, Lower"

• Manage the standard values for installation. (See below)

• First, remove "Support Plate, Frame, Main". Then, remove "Roller PF Assy.", "Roller EJ Assy." and "Paper Guide, Front".

• Make sure to manage "Waste Ink Tube".

• Routing of "Star Wheel/CDR Sensor" connector cable.

• Assemble "Cam, CR, Left" while gearing with the APG gear.

 Management of the reference position for installation

[Reason] Accurate installation for each component of "Printer Mechanism" is on a basis of "Housing, Lower".

[Support for Service] Check if there is no gap between "Frame, Main" and "Housing, Lower".

[Reference] In order to ensure the accuracy for installation, it is necessary to manage the reference position for installation in X, Y and Z direction.

[X-axis]

• Check if "Frame, Main" is correctly set to the groove of "Housing, Lower".

• Check that there is no gap between "Frame, Main" and "Housing, Lower".

[Y-axis]

• Check if the slot of "Frame, Main" is correctly attached to the projection of "Housing, Lower".

[Z-axis]

• Check that there is no gap between "Frame, Main" and "Housing, Lower".

• Check if correctly secured with the hooks (2 on the left, 1 on the right, 1 on the right front) of "Printer Mechanism".

 Management of the perpendicular accuracy of "Guide Plate, CR" (The

standards of the guide rail's perpendicular direction is on the basis of the hooks of "Carriage Unit" and "Print Head".)

[Reason] Deformation of "Guide Plate, CR" may cause the defective print/operation.

[Support for Service] Specify the correct raising position for "Main Frame" so that it will not be deformed.

DISASSEMBLY AND ASSEMBLY Caution regarding assemb ling/disassembling the printer mechanism, and how to ensure the qu ality of reassembled product 35

EPSON Stylus Photo R320 Revision B

 How to install "ASF Assy.", "Main Board" and "Paper Guide, Upper"

[Reason] When installing these three components, too much force can be given to "Frame, Main", therefore, it may be deformed and cause the defective print/ operation.

[Support for Service] Hold the opposite side of the components securely, when installing them.

3. CDR Guide Assy.

 Management of the level accuracy of "CDR Guide Assy."

[Reason] Deformation of "CDR Guide Assy." may cause the defective print.

[Support for Service] Disassemble/assemble carefully "CDR Guide Assy.".

 How to secure the quality for reassembled products

It can be judged that the quality for the reassembled products is guaranteed if the printing test with the Adjustment program is successful.

DISASSEMBLY AND ASSEMBLY Caution regarding assemb ling/disassembling the printer mechanism, and how to ensure the qu ality of reassembled product 36

EPSON Stylus Photo R320 Revision B

2.3 Disassembly

The following flowchart shows the order of disassembling procedure. When disassembling any unit, refer to the page number shown in the flowchart.

START

Removing Paper

Support Assy.

(2.3.1 P.38)

Removing Housing, Upper

(2.3.3 P.40)

Removing Preview

Monitor Unit

(2.3.2 P.39)

C H E C K

P O I N T

Since we used a mass production trial model for EHC destination to create this manual, the color or shape of the product shown in the manual may slightly differs from the product on sale.

Removing Housing, Middle

(2.3.4 P.41)

Removing Main Board

(2.3.8 P.47)

Removing ASF Assy.

(2.3.9 P.50)

Removing Holder,

Shaft Assy.

(2.3.10 P.53)

Removing Printer

Mechanism/Housing,

Lower (2.3.16 P.67)

Removing Carriage

Unit

(2.3.14 P.60)

Removing CDR Guide

Assy.

(2.3.18 P.72)

Removing Paper Guide,

Front/Roller EJ Assy.

(2.3.20 P.77)

Removing Panel Board

(2.3.6 P.45)

Removing Porous Pad,

Paper Guide, Front, Left,

Support (2.3.5 P.43)

Removing Paper

Guide, Upper

(2.3.15 P.66)

Removing Power Supply

Unit

(2.3.17 P.71)

Removing Stacker Assy.

(2.3.7 P.46)

Removing Ink System

(2.3.19 P.74)

Removing CR Motor

(2.3.11 P.56)

Removing PF Motor

(2.3.21 P.81)

NOTE: indicates that the procedure in the broken-line box is NOT the shortest

removing procedure, but the passing point for the next removing procedure.

NOTE: When removing ’CDR Guide Assy.’ or ’Paper Guide, Front/ Roller EJ Assy.’, We

have to remove Carriage Unit before removing Printer Mechanism.

Removing Print Head

(2.3.13 P.59)

Removing Main Board

(2.3.8 P.47)

Removing APG Assy.

(2.3.12 P.57)

Removing Carriage Unit

(2.3.14 P.60)

Removing APG Assy.

(2.3.12 P.57)

Figure 2-1. Removing Procedure Flowchart

DISASSEMBLY AND ASSEMBLY Disassembly 37

EPSON Stylus Photo R320 Revision B

2.3.1 Removing Paper Support Assy.

 External View

Paper Support Assy.

Dowels

Figure 2-2. Removing "Paper Support Assy."

 Parts/Units which should be removed before removing "Paper Support Unit"

None

 Procedure for Removing

1. Release the dowels (x2) which secure "Paper Support Assy.". Then remove "Paper Support Assy." from "ASF Assy.".

ASF Assy.

DISASSEMBLY AND ASSEMBLY Disassembly 38

EPSON Stylus Photo R320 Revision B

2.3.2 Removing Preview Monitor Unit

 External View

Preview Monitor Unit

Connector

C.B.P 3x8 (2-4kgf•cm)

 Parts/Units which should be removed before removing "Preview Monitor

Unit"

None

 Procedure for Removing

1. Raise the "Preview Monitor Unit".

2. Remove the screw(x1) which secure "Preview Monitor Unit".

3. Release the hook(x2) which secure "Preview Monitor Unit". Then lift the "Preview Monitor Unit" upward.

4. Remove the "Monitor FFC" from the "Preview Monitor Board" connector. Then remove "Preview Monitor Unit".

Hooks

Monitor FFC

Preview Monitor Board

Figure 2-3. Removing "Preview Monitor Unit"

DISASSEMBLY AND ASSEMBLY Disassembly 39

EPSON Stylus Photo R320 Revision B

2.3.3 Removing Housing, Upper

 External View

Housing, Upper

Dowels

Carriage Unit

Carriage Lock

Printer Cover

Hooks Hooks

C.B.P 3x8 (4-6kgf•cm)

 Parts/Units which should be removed before removing "Housing, Upper"

Paper Support Assy./Preview Monitor Unit

 Procedure for Removing

1. Release the dowels(x2) of "Printer Cover". Then remove the "Printer Cover" from "Housing Upper".

2. Remove the screws (x4) which secure "Housing, Upper".

3. Release "Carriage Lock" with the tweezers or alike and then move "Carriage Unit" toward the centre.

4. Release the hooks (x4) which secure "Housing, Upper" and then lift up "Housing, Upper".

5. Detach "Panel FFC" from the connector of "Panel Board" and then remove "Housing, Upper".

 Tighten the screws in the order as shown in the figure.  Make sure to put the dowels (x2) of "Housing, Upper" into the

attaching holes (x2) on "Printer Cover".

Dowels

Printer Cover

Connector

Panel FFC

Attaching Holes

Figure 2-5. Reinstalling "Printer Cover"

Figure 2-4. Removing "Housing, Upper"

DISASSEMBLY AND ASSEMBLY Disassembly 40

EPSON Stylus Photo R320 Revision B

2.3.4 Removing Housing, Middle

 External View

Fixed spring, Core

C.B.P 3x8

(4-6kgf•cm)

Ferrite Core

Housing, Lower

Slots and Hook

Panel FFC

Two-sided

Tape

C.B.P 3x8

(4-6kgf•cm)

C.B.S 3x8 (6-8kgf•cm)Housing, Middle

Hook Cover, Ink Tube

C.B.P 2.5x8 (3-5kgf•cm)

C.B.S 3x10

(4-6kgf•cm)

 Procedure for Removing

1. Pull out "Panel FFC" from "Ferrite Core".

2. Take off the two-sided tape which fixing the "Panel FFC" from "Housing Middle".

3. Remove the screw which secures "Cover, Ink Tube", release the hook and then remove "Cover, Ink Tube".

4. Remove the screws (x4) which secure "Housing, Middle".

5. Lay down the printer backward, put a flat-blade screwdriver or alike into the slot located on the bottom surface of "Housing, Lower" and then release the hooks (x2) which secure "Housing, Middle".

C A U T I O N

Do not damage the hooks of "Housing, Middle" with the flat-blade screwdriver or alike.

6. Lift "Housing, Middle" upward and remove it.

 Through the "Monitor FFC" into the hole on "Housing Middle".

Figure 2-6. Removing "Housing, Middle"

Monitor FFC

 Parts/Units which should be removed before removing "Housing, Middle"

Paper Support Assy./Preview Monitor Unit/Housing, Upper

Hole

Figure 2-7. Reinstalling "Housing, Middle"

DISASSEMBLY AND ASSEMBLY Disassembly 41

EPSON Stylus Photo R320 Revision B

 When removing "Housing, Middle", the grounding spring may

detach and drop from "Main Board Unit". If this occurs, reattach it to its original position referring to the following figure.

Grounding Spring

Figure 2-8. Reattaching the Ground Spring

 "Fixed spring, Core" should be attached with fixing the "Ferrit

Core" as shown below.

Fixed spring, Core

 Make sure that "Panel FFC" is securely set and it is not reaching

the upper edge of the rib of "Housing, Middle" as shown in the figure.

Rib Keep some clearance here.

Figure 2-10. Mounting "Panel FFC"

 Make sure that the connector cable of "Power Supply Board" is

securely set in the groove of "Housing, Lower".

Ferrite Core

Groove

Connector Cable

Figure 2-11. Mounting the Connector Cable

Figure 2-9. Reattaching the Fixed spring, Core

 Make sure that "Panel FFC" is not stuck under "Housing,

Middle".

 Make sure to tighten up the screws on the back of "Housing,

Middle" in the order as shown in the figure.

DISASSEMBLY AND ASSEMBLY Disassembly 42

EPSON Stylus Photo R320 Revision B

2.3.5 Removing Porous Pad, Paper Guide, Front, Left, Support

 External View

Porous Pad, Paper Guide, FrontPorous Pad, Paper Guide, Front, Left

Porous Pad, Paper Guide, Front, Support

 Pars/Units which should be removed before removing "Porous Pad, Paper

Guide, Front"

Paper Support Assy./Preview Monitor Unit/Housing, Upper"/"Housing, Middle

 Procedure for Removing

1. Remove the following 3 types of porous pads from "Paper Guide, Front" using the tweezers.

• Porous Pad, Paper Guide, Front

• Porous Pad, Paper Guide, Front, Support

• Porous Pad, Paper Guide, Front, Left

C A U T I O N

Make sure to take "Porous Pad, Paper Guide, Front" cleanly as it is glued.

Vertical Direction: 4 ± 1mm

Horizontal Direction: 1-2mm

Horizontal Direction

: 5-6mm

Horizontal Direction

: 3-4mm

Vertical Direction: 4 ± 1mm

Horizontal Direction: 2-3mm

Folding Points

Figure 2-13. Gluing Point of "Porous Pad, Paper Guide, Front"

Figure 2-12. Removing "Porous Pad, Paper Guide, Front"

DISASSEMBLY AND ASSEMBLY Disassembly 43

EPSON Stylus Photo R320 Revision B

 Reinstalling "Porous Pad, Paper Guide, Front"/"Porous Pad,

Paper Guide, Front, Support"

 Fold perpendicularly left and right sides of "Porous Pad,

Paper Guide, Front, Support" at the marks and install it to "Paper Guide, Front". Make sure that the slit engages with the rib located on the side of "Paper Guide, Front" so that they will fit securely.

 Glue the three bond 1401 at 6 points indicated in

Figure 2-13.

 Install "Porous Pad, Paper Guide, Front" in piles. Put it

under the rib, and check if it is securely fit. Adjust the clearance between "Porous Pad, Paper Guide, Front" and "Paper Guide, Front" approximately in 0.5 - 1.0mm.

 Reinstalling "Porous Pad, Paper Guide, Front, Support"

 Insert the foot-parts into the holes of "Paper Guide, Front".

Then, put them under the rib and check if it is securely fit.

C A U T I O N

 Do not damage "Porous Pad, Paper Guide, Front, Support".  Do not apply too much adhesive. Do not contaminate "Porous

Pad, Paper Guide, Front, Support" with the adhesive.

 Install "Porous Pad, Paper Guide, Front" immediately after

applying the adhesive.

 Make sure that the 3 porous pads are fit securely.

DISASSEMBLY AND ASSEMBLY Disassembly 44

EPSON Stylus Photo R320 Revision B

2.3.6 Removing Panel Board

 External View

Board Assy., Panel

2 4

C.B.P 3x8

(5-7kgf•cm)

Panel Board LCD Panel

Rib and

Adjusting Hole

Shield Plate, LCDC.B.S 3x6 (4-6kgf•cm)

Figure 2-14. Removing "Panel Board"

Line Mark

Cover, LCD

 Parts/Units which should be removed before removing "Panel Board"

Paper Support Assy./Preview Monitor Unit/Housing, Upper

 Procedure for Removing

1. Remove the screws (x4) which secure "Board Assy., Panel". Then, remove "Board Assy., Panel".

2. Remove the screw which secures "Panel Board". Then, remove "Panel Board" from "Shield Plate, LCD".

3. Take off the two-sided tapes (x2) which secure "Cover, LCD" from the back of "Housing, Upper". Then, remove "Cover, LCD".

C A U T I O N

Do not damage "LCD Panel".

 When removing "Panel Board Unit", the switch may detach and

Two-sided

Tapes

drop. If this occurs, reinstall it referring the figure.

 When looking at back side of "Housing, Upper", make sure that

the line mark of "Housing, Upper" securely comes to the position

Switch

shown in the figure.

 Match the rib of "Shield Plate, LCD" and the positioning hole of

"Panel Board".

 Screw "Board Assy., Panel" in the order as shown in the figure.

DISASSEMBLY AND ASSEMBLY Disassembly 45

EPSON Stylus Photo R320 Revision B

2.3.7 Removing Stacker Assy.

 External View

Stacker Assy.

 Parts/Units which should be removed before removing "Stacker Assy."

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle

 Procedure for Removing

1. Release the dowel which secures "Stacker Assy." by using a flat-blade screwdriver or alike. Then, remove "Stacker Assy.".

Match the dowels (x2) of "Stacker Assy." and the installing holes (x2) of "Housing, Lower".

Left

Installing hole

Dowels

Figure 2-16. Reinstalling "Stacker Assy."

Installing hole

Right

Dowel

Figure 2-15. Removing "Stacker Assy."

DISASSEMBLY AND ASSEMBLY Disassembly 46

EPSON Stylus Photo R320 Revision B

2.3.8 Removing Main Board

 External View

Main Board

Connector

Cable

C.B.P 3x8 (6-8kgf•cm)

Main Board

Assy.

C.B.P 3x8 (6-8kgf•cm)

Grounding

Spring, M/B

Two-Sided Tape

Panel FFC

Shield Plate, M/B

C.B.S 3x6 (6-8kgf•cm)

C.B.S 3x6 (4-5kgf•cm)

Connector

 Parts/Units which should be removed before removing "Main Board"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle

 Procedure for Removing

1. Disconnect the connector cables below from "Main Board".

Table 2-3. Connectors connected to "C582 Main Board"

Connector

No.

CN3 White 10 Power Supply Board CN4 White 3 PE Sensor CN5 Black 3 PG Sensor CN6 Red 4 Star Wheel/CDR Sensor CN7 White 2 PG Motor CN8 Black 4 CR Motor

CN9 White 4 PF Motor CN10 - 14 CSIC Board/CR Encoder Sensor/PW Sensor CN11 - 15 Print Head CN12 - 15 Print Head

Colour

2. Take off the two-sided tape which secures "Panel FFC" from "Shield Plate, M/B".

3. Remove the screws (x5) which secure "Main Board Assy.". Then, remove "Main Board Assy.".

Number

of Pins

Where to Connect

4. Remove "Grounding Spring, M/B" from "Main Board Assy.".

5. Remove the screw(x1) which seccure "Monitor FFC Holder". Then remove the "Monitor FFC Holder".

6. Disconnect the "Panel FFC" and "Monitor FFC" from "Main Board"

Connector

Monitor FFC Holder

C.B 3x6 (4-6kgf•cm)

connector.

Figure 2-17. Removing "Main Board" (1)

DISASSEMBLY AND ASSEMBLY Disassembly 47

EPSON Stylus Photo R320 Revision B

 External View

Housing, Support Slot Assy.

C.B.P 3x6 (4-6kgf•cm)

Dowel

Positioning spring, M/B

C.B.S 3x4

(4-6kgf•cm)

C.B.S 3x10 (4-6kgf•cm)

C.B 3x6

(4-5kgf•cm)

C.B 3x6

(4-6kgf•cm)

C.P 3x4

(3-5kgf•cm)

C.B 3x6 (4-6kgf•cm)

Dowel

C.B.P 3x6 (4-6kgf•cm)

Shield Plate, M/B

C.P 2.5x6 (3-5kgf•cm) C.B 3x6 (4-6kgf•cm)

C.B.S 3x4 (4-6kgfocm)

C.B.S 3x6 (4-6kgf•cm)

7. Remove the screws (x2) which secure "Housing, Support Slot Assy.". Then, remove "Housing, Support Slot Assy.".

8. Remove the screw(x1) which secure "Positioning spring, M/B". Then remove the "Positioning spring, M/B".

9. Remove the screws (x8) which secure "Shield Plate, M/B". Then, remove "Shield Plate, M/B".

10. Remove the screw s (x7) which secure "Main Board". Then, remove "Main Board".

 Reinstalling "Main Board"/"Shield Plate, M/B"

 Screw in the order as shown in Figure 2-18.

 Reinstalling "Housing, Support Slot Assy."

 Match the dowels (x2) of "Housing, Support Slot Assy." and

the positioning holes of Shield Plate, M/B".

 Screw in the order as shown in Figure 2-17.

 Reinstalling "Panel FFC"

 Make sure to match "Panel FFC" with the lateral face of

"Shield Plate, M/B" and then attach it to "Main Board Assy." with a two-sided tape.

Two-sided Tape Positioning Point

C.B 3x6 (4-6kgf•cm)

Main Board

Figure 2-19. Routing "Panel FFC"

Figure 2-18. Removing "Main Board" (2)

DISASSEMBLY AND ASSEMBLY Disassembly 48

EPSON Stylus Photo R320 Revision B

 Reattaching the Main Board Assy

 Connector cable for "Star Wheels/CDR Sensor" should be

routed as shown below.

Connector Cable

Figure 2-20. Routing connector cable

 Screw in the order as indicated at Figure 2-17.

A D J U S T M E N T

R E Q U I R E D

 When having replaced "Main Board", implement the

adjustment in the following order. (Refer to Chapter 3 "ADJUSTMENT")

 When possible to read data from the old board

1. EEPROM data copy

 When impossible to read from the old board

1. Replace "Waste Ink Pads" with new one. (To count the amount of the waste ink)

2. Market Setting

3. USB ID Input

4. Waste Ink Pad Counter

5. Head ID Input

6. First Dot Adjustment

7. PW Sensor Adjustment

8. Head Angular Adjustment

9. Bi-D Adjustment

10. Offset Input for CR Motor Calorific Limitation

DISASSEMBLY AND ASSEMBLY Disassembly 49

EPSON Stylus Photo R320 Revision B

2.3.9 Removing ASF Assy.

 External View

C.B.S 3x6 (5-7kgf.cm)

C.B.S (P4) 3x8 (5-7kgf•cm)

C.B.P 3x8 (5-7kgf.cm)

C.B.P 3x8 (5-7kgf•cm)

ASF Assy. Connector Cable

3 2 1

Hook

Screw, ASF

(4-5kgfcm)

C.B.S (P4) 3x8 (8-10kgf•cm)

Acetate Tape

 Parts/Units which should be removed before removing "ASF Assy."

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit

 Procedure for Removing

1. Take off the Acetate Tape. Then remove connector cable of "PF Motor" and "PG Motor" from the hook on "ASF Assy".

2. Remove the screws (Screw, Frame, Main) (x3) which secure connector cable of "PF Motor" and "PG Motor". Then release the connector cable.

3. Remove the screws (x5) which secure "ASF Assy.". Then, remove "ASF Assy." to the back of the printer.

Screw, Frame, Main (5-7kgf.cm)

C.B.S 3x6 (5-7kgf•cm)

Figure 2-21. Removing "ASF Assy." (1)

DISASSEMBLY AND ASSEMBLY Disassembly 50

EPSON Stylus Photo R320 Revision B

 External View

Extension Spring, 0.45

Roller, Retard Assy.

Dowel

Support Plate,

Frame, ASF

Compression Spring, 2.51

Hopper

Hools

C.B.P 3x6 (3-5kgf•cm)

Paper Back Lever

Figure 2-22. Removing "ASF Assy." (2)

Compression Spring, 0.31

Dowels

4. Open "Hopper" and then remove "Compression Spring, 2.51".

5. Bow slightly down "Paper Back Lever" and release the dowels (x2) on the both sides in the order of , . Then, remove "Paper Back Lever".

C A U T I O N

When remove the "Paper Back Lever", "Compression

1 2

Spring0.31" comes off. Be careful to not loose it.

6. Remove the screws (x2) which secure "Support Plate, Frame, ASF".

7. Release the hooks (x2) which secure "Extension Spring, 0.45". Then, remove "Roller, Retard Assy.".

DISASSEMBLY AND ASSEMBLY Disassembly 51

EPSON Stylus Photo R320 Revision B

 When reassembling "ASF Assy."

 Make sure that "Extension Spring, 0.45" is hooked on

"Frame, ASF" and "Roller, Retard Assy.".

 Check if "Torsion Spring, 6.45" is correctly installed on

"Paper Back Lever" and "Frame, ASF".

Torsion Spring, 6.45

Figure 2-23. Reinstalling "Torsion Spring, 6.45"

 Check if "Paper Back Lever" and "Roller, Retard Assy."

move smoothly.

 Do not touch the cork of "Hopper".  Screw the "Support Plate, Frame, ASF" in the order as

indicated below.

A D J U S T M E N T

R E Q U I R E D

 Reinstalling "ASF Assy."

 Install "Compression Spring, 2.51" on "Hopper", then

check if "Hopper" moves smoothly.

 Screw in the order as shown in the figure.  Make sure that there is no gap between "ASF Assy." and

"Frame, Main".

 Reattaching connector cable of PF Motor and PG Motor

 Tighten the screws in the order as shown in the figure.

 When having replaced "ASF Assy.", apply G-46 grease to the

specified points in adequate dose. (Refer to Chapter 4 "MAINTENANCE")

 When having replaced or removed "ASF Assy.", implement the

adjustment in the following order. (Refer to Chapter 3 "ADJUSTMENT")

1. First Dot Adjustment

Figure 2-24. Reinstalling "Support Plate, Frame, ASF"

DISASSEMBLY AND ASSEMBLY Disassembly 52

EPSON Stylus Photo R320 Revision B

2.3.10 Removing Holder, Shaft Assy.

 External View

Cable, Head

80-digits Side

Dowel

Paper Guide,

Upper

Carriage Unit

Ribs

Figure 2-25. Removing "Holder, Shaft Assy." (1)

PE Sensor Lever

C.B.S 3x6

(6-8kgf•cm)

Holder, Shaft Assy.

 Parts/Units which should be removed before removing "Holder, Shaft Assy."

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ ASF Assy.

 Procedure for Removing

1. Move "Carriage Unit" toward 80-digits Side.

2. Remove the screws (x2) which secure "Holder, Shaft Assy.".

3. Pull "Holder, Shaft Assy." upward and release the hooks ( : x2) with the tweezers or alike. Then, Release the dowel from "Ink System Frame".

4. Looking at the printer from its back side, press down "Paper Guide, Upper" on the left, and release "PE Sensor Lever" from the slot. Remove "Holder, Shaft Assy." by sliding it to the right.

C A U T I O N

Be careful not to damage "PE Sensor Lever" and "Paper Guide, Upper" when removing them since "PE Sensor Lever" contacts with "Paper Guide, Upper".

5. Release "Cable, Head" from the hooks ( : x7) of "Holder, Shaft Assy.".

C A U T I O N

Do not damage "Cable, Head".

DISASSEMBLY AND ASSEMBLY Disassembly 53

EPSON Stylus Photo R320 Revision B

 External View

Paper, Block

Clutch

Dowel

Shaft, LD Roller

LD Roller

Dowel

Holder, Shaft, LD Roller

PE Sensor Board

Hook

Dowel

 Removing "LD Roller"

1. Release the dowels (x2) which secure "Paper, Block". Then, remove "Paper, Block".

2. Release the dowels (x2) which secure "Shaft, LD Roller". Then, remove "Shaft, LD Roller" and "Clutch" together from "Holder, Shaft, LD Roller".

3. Remove "LD Roller" from "Shaft, LD Roller".

C A U T I O N

Do not touch "LD Roller" with bare hands.

 Reinstalling "LD Roller"

 Make sure to match the direction ( Mark) indicated on

"Shaft, LD Roller" with the direction ( Mark) indicated on the back side of "LD Roller".

mark on "LD Roller"

Extension Spring, 0.143

Spur Gear, 36.8

Figure 2-26. Removing "Holder, Shaft Assy." (2)

Torsion Spring, 0.22

Lever Sensor, PE

mark on "Shaft, LD Roller"

Figure 2-27. Reinstalling "LD Roller"

DISASSEMBLY AND ASSEMBLY Disassembly 54

EPSON Stylus Photo R320 Revision B

 Reinstalling "Clutch"

 Make sure that the dowel of "Shaft, LD Roller" is fitted in

the installing hole of "Clutch".

 Make sure that "Extension Spring, 0.143" is securely set on

the hooks of "Clutch" and "Shaft, LD Roller".

 Do not set "Extension Spring, 0.143" in twisted form.  Make sure that "Clutch" rotates correctly.

 Reinstalling "Shaft, LD Roller"

 Do not touch "LD Roller" with bare hands.  Check if the straight part of "Torsion Spring, 137.7" is set

between the 2 cams of "Shaft, LD Roller".

Torsion Spring, 137.7

Make sure that the straight part of "Torsion

Spring, 137.7" is set between the two cams.

Figure 2-28. Position of "Torsion Spring, 137.7"

LD Roller

 Reinstalling "Holder, Shaft Assy."

 Check if the hooks (x2), the dowel and the ribs (x5) of

"Holder, Shaft Assy." are correctly secured.

 Check if the connector cable of "PE Sensor" and "Cable,

Head" are installed at the correct position of "Holder, Shaft Assy.".

 Do not touch "LD Roller" with bare hands.  Do not damage the teeth of "Spur Gear, 36.8" and

"Combination Gear, 27.2, 19.2".

Spur Gear, 36.8

Combination Gear, 27.2, 19.2

Figure 2-29. "Spur Gear, 36.8" and "Combination Gear, 27.2, 19.2"

 Screw in the order as indicated below.

Holder, Shaft Assy.

Figure 2-30. Reinstalling "Holder, Shaft Assy."

A D J U S T M E N T

R E Q U I R E D

 When having replaced "Shaft, LD Roller", apply G-46 grease to

the specified points in adequate dose. (Refer to Chapter 4 "MAINTENANCE")

DISASSEMBLY AND ASSEMBLY Disassembly 55

EPSON Stylus Photo R320 Revision B

2.3.11 Removing CR Motor

 External View

CN8

Puller, Driven

Timing Belt

Figure 2-31. Removing "CR Motor"

Carriage Unit

Carriage Lock

C.C 3x4 (3.5-4.5kgf•cm)

1 2

CR Motor

 Procedure for Removing

1. Disconnect the connector cable of "CR Motor" from the connector (CN8) of "Main Board".

2. Release the carriage lock with the tweezers or alike, then move "Carriage Unit" to the centre of the printer.

3. Push "Pulley, Driven" in the direction of the arrow and loosen the tension of "Timing Belt". Then, remove "Timing Belt" from the pinion gear of "CR Motor".

4. Remove the screws (x2) which secure "CR Motor". Then, remove "CR Motor".

C A U T I O N

Do not damage the pinion gear when removing "CR Motor".

 Make sure to screw "CR Motor" in the order as shown in the

figure.

 Make sure that there is no gap between "CR Motor" and

"Frame, Main".

 Make sure that the part on which "CR Motor" Lot number is

printed is face-up.

 Parts/Units which should be removed before removing "CR Motor"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle

A D J U S T M E N T

R E Q U I R E D

 When having removed or replaced "CR Motor", implement the

adjustment in the following order. (Refer to Chapter 3 "ADJUSTMENT")

1. First dot Adjustment

2. PW Sensor Adjustment

3. Head Angular Adjustment

4. Bi-D Adjustment

5. Offset Input for CR Motor Calorific Limitation (When Replaced)

DISASSEMBLY AND ASSEMBLY Disassembly 56

EPSON Stylus Photo R320 Revision B

2.3.12 Removing APG Assy.

 External View

CN7

Acetate Tape

3 2 1

ASF Assy. Connector Cable

Hook

Acetate Tape

 Parts/Units which should be removed before removing "APG Assy."

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle

 Procedure for Removing

1. Disconnect the connector cable of "PG Motor" from CN7 of "Main Board".

2. Release the connector cables of "PF Motor" and "PG Motor" from the following points.

 Take off the Acetate Tape(x2).  Remove from the hook on "ASF Assy".  Cut the tie wrap  Remove the screw (Screw, Frame, Main) (x3) which secure the connector

cable.

3. Remove the screw which secures "APG Assy.". Then, remove "APG Assy.".

Tie wrap

Screw, Frame, Main (5-7kgf.cm)

APG Assy.

C.B.S 3x6 (6-8kgf•cm)

Figure 2-32. Removing "APG Assy."

DISASSEMBLY AND ASSEMBLY Disassembly 57

EPSON Stylus Photo R320 Revision B

 Make sure that the hooks (x2) and the dowels (x2) of "APG

Assy." are securely attached to "Frame, Main".

 Check if the part indicated in the following figure is inserted in

the slits of "Frame, Main".

It has to be inserted in the slit of "Frame, Main"

Dowel

Hook

APG Assy.

Figure 2-33. Reinstalling "APG Assy."

 Reattaching connector cable of PF Motor and PG Motor

 Tighten the screws in the order as shown in the figure.

DISASSEMBLY AND ASSEMBLY Disassembly 58

EPSON Stylus Photo R320 Revision B

2.3.13 Removing Print Head

 External View

Carriage Unit

Holder, FFC

Carriage Lock

Hooks

Holder, IC

Print Head

C.B.P 2.5x6 (3-5kgf•cm)

Cable, Head

C.B.B (P2) 2.5x8 (3-5kgf•cm)

Figure 2-34. Removing "Print Head"

 Parts/Units which should be removed before removing "Print Head".

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle

 Procedure for Removing

1. Remove all the ink cartridges from "Carriage Unit".

2. Release "Carriage Lock" with the tweezers or alike, then move "Carriage Unit" to the centre of the printer.

3. Remove the screw (x1) which secures "Holder, FFC" with the No. 1 driver.

Hooks

4. Slightly inflect the lower part of "Holder, FFC", release the hooks (x3) by sliding it downward. Then, remove "Holder, FFC".

5. Release the hooks (x2) which secure "Holder, IC", and remove "Holder, IC" upward.

6. Remove the screws (x2) which secure "Print Head" with Phillips screwdriver (No.1).

7. Disconnect "Cable, Head" from the connector of "Print Head" while slightly lifting "Print Head". Then, remove "Print Head".

C A U T I O N

Do not touch and/or damage the nozzle surface of "Print Head" when handling it.

 Check if "Head FFC" is correctly connected to the connector of

"Print Head".

 Check if "Print Head" is correctly set to "Carriage Unit".  Screw the "Print Head" in the order as indicated the Figure.

A D J U S T M E N T

R E Q U I R E D

 When having removed or replaced "Print Head", implement the

adjustment in the following order. (Refer to Chapter 3 "ADJUSTMENT")

1. Ink Charge (When Replaced)

2. Head ID Input (When Replaced)

3. First Dot Adjustment

4. PW Sensor Adjustment

5. Head Angular Adjustment

6. Bi-D Adjustment

7. Offset Input for CR Motor Calorific Limitation

DISASSEMBLY AND ASSEMBLY Disassembly 59

EPSON Stylus Photo R320 Revision B

2.3.14 Removing Carriage Unit

 External View

Guide Plate, CR

Fixed

Spring, CR

Shaft, Left

Hook

Rib

Holder, Scale Left

C.B.S 3x6 (7-9kgf•cm)

Hook

CR Scale

Rib

Holder, Scale Right

Hook

 Parts/Units which should be removed before removing "Carriage Unit"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/APG Assy./Print Head

 Procedure for Removing

1. Remove "Fixed Spring, CR Shaft, Left" by releasing it from the hook of "Frame, Main".

2. Remove the screws (x6) which secure "Guide Plate, CR".

3. Release the ribs (x2) which secure "Guide Plate, CR". Then, remove "Guide Plate, CR" while stepping aside the hook which has secured "Fixed Spring, CR Shaft, Left".

4. Remove the right side of "CR Scale" from "Holder, Scale Right".

5. Pull out "CR Scale" from the back of "Carriage Unit" to the left. Then, release "CR Scale" from one of two hooks of "Holder, Scale, Left" first, and next release "Extension Spring, 3.289" from the other hook.

6. Remove "Extension Spring, 3.289" from "CR Scale".

7. Loosen the tension of "Timing Belt" by pushing "Pulley, Driven" to the right. Then, remove "Timing Belt" from the pinion gear of "CR Motor" first, and then from "Pulley, Driven".

Extension Spring, 3.289

Pulley, Driven

Pinion GearTiming Belt

Figure 2-35. Removing "Carriage Unit" (1)

DISASSEMBLY AND ASSEMBLY Disassembly 60

EPSON Stylus Photo R320 Revision B

 External View

Holder, Scale Left

Cable, Head

Hooks

E Ring Flat Washer

E Ring Flat Washer Spring Washer

Bushing,

Parallel

Adjust, Right

E Ring

Cam, CR,

Right

CR Guide Shaft

Cam, CR, Left

Holder, Scale, Right

C.B.S (P4) 3x6

(6-8kgf•cm)

Fixed Spring,

CR Shaft,

Right

Hook

CR Guide Shaft

8. Remove the E ring, "Holder, Scale Right" and "Cam, CR, Right" from the right side of "CR Guide Shaft".

9. Remove the screw which secures "Bushing, Parallel Adjust, Right", Then, remove "Bushing, Parallel Adjust, Righ t".

10. Remove "Fixed Spring, CR Shaft, Right" from the hook of "Frame, Main ". Remove "Fixed Spring, CR Shaft, Right" from "CR Guide Shaft".

11. Remove th e "E Ring, Flat Washer" which secure the "Holder, Scale Left".

12. Remove the E ring, the flat washer and the spring washer from the left side of "CR Guide Shaft". Then, remove "Holder, Scale, Left"

13. Release "Cable, Head" from the hooks (x8) of "Holder, Shaft Assy.".

14. Slide "CR Guide Shaft" to the right and pull it out from "Cam, CR, Left". Then, remove "Carriage Unit" and "CR Guide Shaft" together.

15. Pull out "CR Guide Shaft" from "Carriage Unit".

Holder, Shaft

Assy.

Hooks

Figure 2-36. Removing "Carriage Unit" (2)

DISASSEMBLY AND ASSEMBLY Disassembly 61

EPSON Stylus Photo R320 Revision B

 External View

Bushing, Parallel

Adjust, Right

Extension Spring, 26.46

Pulley, Driven

C.B.S (P4) 3x6

(6-8kgf•cm)

CR Encoder

Sensor Board

Holder, FFC ; B

Timing Belt

CSIC Board

Connector

CR Encoder Sensor Board

C.P.B (P1) 1.7x5

(1.5-2.5kgf•cm)

PW Sensor FFC

16. Remove the screw which secures "Bushing, Parallel Adjust, Left". Then, remove "Bushing, Parallel Adjust, Left".

17. Remove "Timing Belt" from "Carriage Un it".

18. Remove the screws which secure "Holder, FFC; B". Then, remove "Holder, FFC; B".

19. Remove "Cable, Head" from the connectors of "CSIC Board" and "CR Encoder Sensor Board". Then, remove "Cable Head" from "Carriage Unit".

 Removing "Pulley, Driven"

1. Remove "Extension Spring, 26.46" from "Pulley Driven" and the hook of "Frame, Main" by using a flat-blade screwdriver. Then, remove "Extension Spring, 26.46".

2. Slide "Pulley, Driven" in the direction of the arrow. Then, remove "Frame, Main" from the slot.

 Removing "CR Encoder Sensor Board"

1. Remove the screw which secures "CR Encoder Sensor Board" with Phillips screwdriver (No.0). Disconnect "PW Sensor FFC" from the connector of "CR Encoder Sensor Board". Then, remove "CR Encoder Sensor Board".

C.P.B (P1)1.7x5

(1.5-2.5kgf.cm)

Connector

Slot

Figure 2-37. Removing "Carriage Unit" (3)

DISASSEMBLY AND ASSEMBLY Disassembly 62

EPSON Stylus Photo R320 Revision B

 External View

Hooks

Torsion Spring, Lever, Cartridge

C.B.P 2.5x8 (3-5kgf•cm)

Cap, PW Sensor

Hook

Dowel

Guide, IC

PW Sensor Board

Connector

Lever, Cartridge

Slot and Dowel

 Removing "PW Sensor Board"

1. Release the hooks (x3) which secure "Cap, PW Sensor". Then, remove "Cap, PW Sensor".

C A U T I O N

When removing "Cap, PW Sensor", "PW Sensor Board" will be free. Therefore, take care not to damage "PW Sensor Board".

2. Pull out "PW Sensor Board" from the slot of "Carriage Unit". Then, remove "PW Sensor FFC" from the connector of "PW Sensor Board" and remove "PW Sensor Board" and "PW Sensor FFC".

 Removing "CSIC Board"

1. Remove "Torsion Spring, Lever, Cartridge" from the hook and the dowel of "Guide, IC".

2. Remove the dowel of "Lever, Cartridge" from the slot on the right side of ""Guide, IC" by using the tweezers. Then, remove "Lever, Cartridge.

3. Remove the screws (x2) which secure "Guide, IC", then release the hook with the tweezers. And remove "Guide, IC".

4. Release the hooks (x2) which secure "CSIC Board", then push up "CSIC Board" from the slot located on the bottom of "Carriage Unit" with a flatblade screwdriver or alike. Finally, remove "CSIC Board".

1 2

Hook

Electric Pole

Hooks

CSIC Board

Slot

C A U T I O N

Do not damage the electric pole with the flat-blade screwdriver or alike when removing "CSIC Board".

Figure 2-38. Removing "CR Unit" (4)

DISASSEMBLY AND ASSEMBLY Disassembly 63

EPSON Stylus Photo R320 Revision B

 Reinstalling "Guide, IC"

 Screw in the order as shown in the figure.

 Reinstalling "CSIC Board"

 Check if "CSIC Board" is secured correctly.

 Reinstalling "PW Sensor Board"

 Check if "PW Sensor FFC" is correctly connected.  Check if "PW Sensor Board" is correctly secured with

"Cap, PW Sensor".

 Reinstalling "CR Encoder Sensor Board"

 Check if "CR Encoder Sensor Board" is correctly secured.  Check if "CR Encoder Sensor Board" is correctly

connected.

 Reinstalling "Holder, FFC ; B"

 Screw in the order as shown in the figure.

 Reinstalling "Holder, Scale, Right (Left)"

 Check if "Slider, Holder, Scale" is set.

Holder, Scale, Right Holder, Scale, Left

 Reinstalling "Carriage Unit"

 Check if "Timing Belt" is correctly set to the installing

groove of "Carriage Unit".

 Check if "Grounding Plate, Head" is installed to the proper

position of "Carriage Unit".

Timing Belt

Figure 2-40. Installing Position of "Grounding Plate, Head"

Grounding Plate, Head

Groove

 Reinstalling "CR Scale"

 Make sure that "Extension Spring, 3.289" is not twisted.  Make sure to pass "CR Scale" through the slit of "CR

Encoder Sensor".

 Make sure to install "CR Scale" with the cut-part on the left

edge up.

Cut-Part

Figure 2-41. Reinstalling "CR Scale"

Slider, Holder, Scale

Figure 2-39. Reinstalling "Slider, Holder, Scale"

 Reinstalling "Guide, CR"

 Screw in the order as shown in the figure.

DISASSEMBLY AND ASSEMBLY Disassembly 64

EPSON Stylus Photo R320 Revision B

A D J U S T M E N T

R E Q U I R E D

 When replacing the following parts or components with new

ones, apply specified grease in its adequate dose. (Refer to Chapter 4 "MAINTENANCE")

 Cam, CR, Right/Left  CR Guide Shaft  Holder, Scale, Right/Left  Pulley, Driven Assy.

 When having removed or replaced "Carriage Unit" or "CR

Guide Shaft", implement the adjustment in the following order. (Refer to Chapter 3 "ADJUSTMENT")

1. PG Adjustment

2. First Dot Adjustment

3. PW Sensor Adjustment

4. Head Angular Adjustment (Only "Carriage Unit")

5. Bi-D Adjustment

6. Offset Input for CR Motor Calorific Limitation (When Replace "CR Guide SHaft")

 When having removed or replaced "PW Sensor", implement the

adjustment in the following order. (Refer to Chapter 3 "ADJUSTMENT")

1. PW Sensor Adjustment

DISASSEMBLY AND ASSEMBLY Disassembly 65

EPSON Stylus Photo R320 Revision B

2.3.15 Removing Paper Guide, Upper

 External View

Paper Guide, Upper

Paper Guide, Lower

TransparencyRoller PF Assy.

Hooks

Rib Rib

Dowels

Torsion Spring, 122.2

Hook

 Parts/Units which should be removed before removing "Paper Guide,

Upper"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy.

 Procedure for Removing

1. Move "Carriage Unit" to the home position.

2. Put a transparency between "Paper Guide, Upper" and "Roller PF Assy.".

3. Release "Torsion Spring, 122.2" (x3) from the hook ( : 1 each) of "Frame,

Main", then pull it out toward you.

4. Release the hooks ( : 2 each) which secure "Paper Guide, Upper" (x3)

upward. Then, release the dowels (2 each) while slightly holding up "Paper Guide, Upper".

5. Press down "Paper Guide, Lower" and pull out "Paper Guide, Upper" (x3) toward you while avoiding the ribs (2 each) of "Frame, Main"

 There are 2 types of "Driven Rollers" of "Paper Guide, Upper".

Install them as shown in the following figure.

Figure 2-42. Removing "Paper Guide, Upper"

Driven Roller (Grey) Driven Roller (White)

Figure 2-43. Installing Position of "Paper Guide, Upper"

DISASSEMBLY AND ASSEMBLY Disassembly 66

EPSON Stylus Photo R320 Revision B

2.3.16 Removing Printer Mechanism/ Housing, Lower

 External View

2 ± 1mm

C.B.S 3x6 (6-8kgf•cm)

C.B 3x6 (4-5kgf•cm)

C.B.P 3x10 (6-8kgf•cm)

1 32

C.B.P 3x8 (4-5kgf•cm)

Screw, Frame, Main (6-8kgf•cm)

Paper Guide, CDR

C.B.P 3x10 (6-8kgf•cm)

Hook (Under the tube)

Lever, ChangeCombination

Gear, 27.2, 19.2

Tie wrap

Figure 2-44. Removing "Printer Mechanism"/"Housing, Lower" (1)

Hooks

Handling Position

Acetate Tape

Hook

Figure 2-45. Removing "Printer Mechanism"/"Housing, Lower" (2)

 Parts/Units which should be removed before removing "Printer

Mechanism"/"Housing, Lower"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy.

 Procedure for Removing

1. Move "Carriage Unit" to the centre of the printer.

2. Remove the screws (x3) which secure "Paper Guide, CDR".

3. Remove the screws (x5) which secure "Printer Mechanism".

4. Take off the acetate tape and release the connector of "Star Wheel/CDR Sensor".

5. Cut off the tie wrap and release the connector cable.

6. Release the hooks (x4) which secure "Printer Mechanism". Then, hold the both right and left upper edges of "Frame, Main" and remove "Printer Mechanism" upward.

DISASSEMBLY AND ASSEMBLY Disassembly 67

EPSON Stylus Photo R320 Revision B

C A U T I O N

W A R N I N G

 When lifting up "Printer Mechanism", "Lever, Change" and

"Combination Gear, 27.2, 19.2" may detach and drop. Take care not to drop and damage them.

 When lifting up "Printer Mechanism", take care not to leak and

drip ink from the end of "Waste Ink Tube" ("Waste Ink Pads" side).

 To prevent "Frame, Main" from warping, do not lift "Printer

Mechanism" holding the places other than specified.

When installing "Printer Mechanism" to "Housing, Lower", pass "Waste Ink Tube" through the hook indicated in the figure below, and securely set it in the groove, so that "Porous Pad, Ink Eject, Upper, Support" will not lift up above the tube. If installed insecurely, it may cause the ink leakage.

Porous Pad, Ink Eject, Upper, Support

Hook

 Reinstalling "Printer Mechanism"

 For this printer, "Housing, Lower" is the standard to

correctly install each part of "Printer Mechanism". In order to ensure the accuracy for installing, it is necessary to manage the reference position for "Frame, Main" installation in X, Y and Z direction as shown in the figure below. If every part is set correctly, "Printer Mechanism" can be secured with the hooks (x4).

[X-axis]

• Make sure that "Frame, Main" is installed correctly to the groove of "Housing, Lower".

• Make sure that there is no gap between "Frame, Main" and "Housing, Lower".

[Y-axis] Make sure that the slot of "Frame, Main" is correctly installed to the projection of "Housing, lower". [Z-axis]

• Make sure that there is no gap between "Frame, Main" and "Housing, Lower"

• Make sure that the left side of "Printer Mechanism" is correctly secured with the hooks (x2).

Left

Right

Waste Ink Tube

Figure 2-46. Reinstalling "Waste Ink Tube"

Hooks

X-axis : (4 points) Y-axis : (1 point) Z-axis : (4 points)

Hooks

Figure 2-47. Reference position for installing "Frame, Main"

DISASSEMBLY AND ASSEMBLY Disassembly 68

EPSON Stylus Photo R320 Revision B

 Make sure that "Waste Ink Pads" (x6) are set correctly to

the rib and the dowel of "Housing, Lower".

Waste Ink Pad, Small

Waste Ink Pad, Upper (Top) Waste Ink Pad, Lower (Bottom)

Figure 2-49. Reinstalling "Waste Ink Pads" (2)

 After checking "Waste Ink Tube" is under "Waste Ink Pad,

Lower", put the jig on the indicated points in the figure below, then install "Porous Pad, Ink Eject, Upper, Support".

Porous Pad, Ink Eject,

Upper, Support

Jig

Waste Ink Pad, Lower

Adjusting Point

Cap, Ink Pad, Lower, Small (Top)

Cap, Ink Pad, Lower, Large (Bottom)

Figure 2-50. Reinstalling "Porous Pad, Ink Eject, Upper, Support"

Figure 2-48. Reinstalling "Waste Ink Pads" (1)

DISASSEMBLY AND ASSEMBLY Disassembly 69

EPSON Stylus Photo R320 Revision B

 Screw "Printer Mechanism" and "Paper Guide, CDR" in

the order as shown in the figure.

 Make sure that "Waste Ink Tube" is not squashed or

pressed.

 Check if "Cap Assy." moves smoothly.

A D J U S T M E N T

R E Q U I R E D

 When having replaced "Waste Ink Pads" with new ones,

implement the following adjustment. (Refer to Chapter 3 "ADJUSTMENT")

 Waste Ink Pad Counter

DISASSEMBLY AND ASSEMBLY Disassembly 70

EPSON Stylus Photo R320 Revision B

2.3.17 Removing Power Supply Unit

 External View

Power Supply Unit

C.B.S 3x6 (6-8kgf•cm)

Hooks

C.B.P 3x10 (6-8kgf•cm)

C.B.S 3x6 (6-8kgf•cm)

Figure 2-51. Removing "Power Supply Unit"

Shield Plate, Upper

C.B.S 3x6 (6-8kgf•cm)

 Procedure for Removing

1. Remove the screw which secures "Power Supply Unit". Then, Remove "Power Supply Unit".

2. Remove the screws (x5) which secure "Shield Plate, Upper".

3. Release the hooks (x2) which secure "Shield Plate, Upper", and then remove "Shield Plate, Upper".

4. Remove the screws (x4) which secure "PSB/PSE Board", and then remove "PSB/PSE Board".

 Reinstalling "PSB/PSE Board"

 Make sure to screw in the order as shown in the figure.

 Reinstalling "Shield Plate, Upper"

 Check if the "Power connector cable" is in between the two

shield plates.

 Check if "Shield Plate, Upper" is correctly installed.  Make sure to screw in the order as shown in the figure.

A D J U S T M E N T

R E Q U I R E D

 When replacing "Power Supply Unit" with a new one,

implement the following adjustment. (Refer to Chapter 3 "ADJUSTMENT")

 Offset Input for CR Motor Calorific Limitation

 Parts/Units which should be removed before removing "Power Supply Unit"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy./Printer Mechanism

DISASSEMBLY AND ASSEMBLY Disassembly 71

EPSON Stylus Photo R320 Revision B

2.3.18 Removing CDR Guide Assy.

 External View

C.B.P 3x6 (5-7kgf•cm)

Hooks

C.B.S 3x6 (6-8kgf•cm)

Ribs

Flat Washer

CDR Guide Assy.

Link, CDR Left

Flat Washer

Support Plate, Frame, Main

C.B.S 3x6 (7-9kgf•cm)

Acetate Tape

Connector Cable

Hooks

CDR Guide, Lower

Figure 2-53. Removing "CDR Guide Assy." (2)

 Parts/Units which should be removed before removing "CDR Guide Assy."

C.B.S 3x6 (6-8kgf•cm)Link, CDR Right

Ribs

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy./APG Assy./ Print Head/Carriage Unit/Printer Mechanism

 Procedure for Removing

1. Take off the acetate tape and release the connector cable of "Star Wheel/ CDR Sensor".

2. Remove the screws (x2) which secure "Support Plate, Frame, Main". Then, remove "Support Plate, Frame, Main".

3. Remove the screws (x3) which secure "CDR Guide Assy.".

4. Remove the flat washer which secure "Link, CDR Left (Right)" with the tweezers. Then, Remove "Link, CDR Left (Right)" from "CDR Guide Assy.".

5. Release the ribs (x7) which secure "CDR Guide Assy.", then remove "CDR Guide Assy." through the right edge.

6. Remove the screws (x2) which secure "CDR Guide, Lower".

7. Slide "CDR Guide, Lower" and then release the hooks (x7). After that,

Figure 2-52. Removing "CDR Guide Assy." (1)

remove "CDR Guide, Lower".

DISASSEMBLY AND ASSEMBLY Disassembly 72

EPSON Stylus Photo R320 Revision B

 External View

Shaft and Positioning Hole

Groove

Star Wheel/CDR Sensor

Compression Spring, 5.1

Lock, Stacker

Hooks

Figure 2-54. Removing "CDR Guide Assy." (3)

8. Remove "Compression Spring, 5.1" and "Lock, Stacker" from "CDR Guide, Upper".

9. Release the connector cable of "Star Wheel/CDR Sensor" from the groove of "CDR Guide, Upper".

 Reinstalling "Star Wheel/CDR Sensor"

 Match the Shaft (x2) of "CDR Guide, Upper" and the

positioning hole of "Star Wheel/CDR Sensor".

 Route the connector cable correctly of "Star Wheel/CDR

Sensor" referring to the figure.

 Reinstalling "CDR Guide, Lower"

 Screw in the order as shown in the figure.

 Reinstalling "CDR Guide, Upper"

 Make sure that the hooks (x2) of "Lock Stacker" are

properly secured by the tension of "Compression Spring,

5.1".

 Make sure that "CDR Guide, Upper" is securely secured

with the hooks (x7) of "CDR Guide, Lower" and there is no gap between "CDR Guide, Upper" and "CDR Guide, Lower".

 Reinstalling "CDR Guide Assy."

 Install "CDR Guide Assy." in the order of left edge, right

edge and middle.

 Match the slot (x6) of "CDR Guide Assy." and the ribs (x6)

of "Frame, Main".

 Check if "Link, CDR Left (Right)" is correctly installed.  Check if the connector cable of "Star Wheel/CDR Sensor" is

not interrupting "Link, CDR Right".

 Check if "Frame, EJ Assy." works with "CDR Guide Assy."

and moves smoothly.

 Reinstalling "Support Plate, Frame, Main"

 Screw in the order as shown in the figure.

DISASSEMBLY AND ASSEMBLY Disassembly 73

EPSON Stylus Photo R320 Revision B

2.3.19 Removing Ink System

 External View

Support Plate,

Frame, Main

Acetate Tape

C.B.S 3x6

(7-9kgf•cm)

Dowel

Combination Gear, 27.2, 19.2

Cap Assy.

Dowels

C.B.P 3x8

(5-7kgf•cm)

Ribs

Combination

Gear, 20.82, 24

Hook

Pump Assy.

Dowels

Sealing Rubber Part

Cleaner Head

Lever, Change Assy.

Lever, Change

Spur Gear, 25.6

Dowels

Hooks

 Parts/Units which should be removed before removing "Ink System"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy./Printer Mechanism

 Procedure for Removing

1. Take off the acetate tape, then release the connector cable of "Star Wheel/ CDR Sensor".

2. Remove the screws (x2) which secure "Support Plate, Frame, Main", and remove "Support Plate, Frame, Main".

3. Remove the screw which secures "Cap Assy.".

4. Slide "Cap Assy." inward "Printer Mechanism" and release the dowels ( : x2"). Then, remove "Cap Assy." from the ribs (x2) of "Frame Main".

C A U T I O N

 Do not remove the ink tube which is connected to "Cap Assy."

and "Pump Assy.".

 The ink tube cannot be removed from "Pump Assy." since it is

secured with silicon material for the following reasons.

 To prevent "Pump Assy." from ink leakage.  To adjust the length of the ink tube extended from "Pump

Frame".

5. Release the hooks (x3) and the dowels (x3) which secure "Pump Assy.", and hold "Lever, Change Assy." and all the gears with your finger in order not to let them drop, then remove "Cap Assy." and "Pump Assy." together.

6. Remove "Combination Gear, 20.82, 24", "Spur Gear, 27.2", "Lever, Change Assy." and "Combination Gear, 27.2, 19.2" from "Pump Assy.".

7. Remove "Spur Gear, 25.6" from "Lever, Change".

8. Remove "Compression Spring, 2.36" from the dowel of "Lever, Change".

Spur Gear, 27.2

Silicon Material Part

Compression Spring, 2.36

Figure 2-55. Removing "Ink System" (1)

DISASSEMBLY AND ASSEMBLY Disassembly 74

EPSON Stylus Photo R320 Revision B

 External View

Frame, Cap

Spring, 0.788

Extension

Slider, Cap

Hooks

Porous Pad, Slider, Cap

Lever, Lock, Slider

Extension

Spring, 0.441

Hook

9. Remove "Extension Spring, 0.441" from the hooks of "Slider, Cap" and "Frame, Cap" by using the tweezers.

10. Remove "Exten sion Spring, 0.788" from the hooks of "Lever, Lock, Slider" and "Frame, Cap" by using the tweezers.

11. Remove the shaft of "Slider, Cap" from the slot of "Frame, Cap", then remove "Lever, Lock, Slider".

12. Remove "Porous, Slider, Cap" from the hook of "Slider, Cap".

 Reinstalling "Lever, Lock, Slider"

 Check if it works properly with "Slider, Cap".

 Reinstalling "Ink System"

 Make sure that the ink tube is correctly connected to the

point of "Frame, Cap" shown in the figure below. If it is not connected properly, it may cause ink leakage.

Shaft

Figure 2-57. Connecting Point for the ink tube

Figure 2-56. Removing "Ink System" (2)

 Do not touch the sealing rubber part and "Cleaner Head".  Make sure that the line mark of the ink tube is not twisted.  Check if "Cap Assy." moves smoothly.

DISASSEMBLY AND ASSEMBLY Disassembly 75

EPSON Stylus Photo R320 Revision B

 Set all of the gears on the shaft of "Pump Frame" correctly,

and then check if they move smoothly.

 Make sure that the ink tube is not squashed or pressed.  Install the ink tube to the grooves (x2) at the bottom surface

of "Cap Frame".

Figure 2-58. Installing Point for the ink tube

 Reinstalling "Ink System"

 Check if "Pump Assy." is correctly secured.  Do not let "Lever, Change", "Combination Gear, 27.2,

19.2", "Spur Gear, 27.2" and "Combination Gear, 20 .82, 24" drop and break them.

 Reinstalling "Support Plate, Frame, Main"

 Screw in the order as shown in the figure.

DISASSEMBLY AND ASSEMBLY Disassembly 76

EPSON Stylus Photo R320 Revision B

2.3.20 Removing Paper Guide, Front/Roller EJ Assy.

 External View

Compression

Spring, 1.27

PF Timing BeltSpur Gear,37.242

Spur Gear, 41.48

Holder, Idle Roller

Frame EJ Assy.

Hooks

Guide, Shaft, Frame EJ, Right

Flat Washer Hook

Link EJ, Right

Guide, Shaft,

Frame EJ, Left

Link EJ, Left

Push Up, Plate, Left

Hooks

Extension Spring,

Flat Washer

 Parts/Units which should be removed before removing "Paper Guide,

Front"/"Roller EJ Assy."

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy./APG Assy./Print Head/ Carriage Unit/Printer Mechanism/CDR Guide Assy.

 Procedure for Removing

1. Release the hook of "Link EJ, Right" from the groove of "Guide, Shaft, Frame EJ, Right". Then, remove "Link EJ, Right".

2. Remove the flat washer which secures the right side of "Frame EJ Assy.".

3. Remove "PF Timing Belt" from "Spur Gear, 37.242", then remove "Spur Gear, 41.48".

4. Remove "Compression Spring, 1.27" and "Holder, Idle Roller" together with "PF Timing Belt".

5. Move back "Carriage Unit" to the home position, and then remove "Frame EJ Assy." in the direction of the arrow, also in the order indicated in the figure.

C A U T I O N

6. Remove the flat washer which secures "Link EJ, Left", then Slide "Link EJ,

When removing "Frame EJ Assy.", take care not to damage or transform "Star Wheels" of "Frame EJ Assy.".

Left" to the right.

7. Remove "Extension Spring, Push Up, Plate, Left" from the hooks of "Guide, Shaft, Frame EJ, Left" and "Frame, Main".

Hook

8. Release the hooks (Left x3, right x2) which secure "Guide, Shaft, Frame EJ, Left (Right)". Then, remove "Guide, Shaft, Frame EJ, Left (Right)".

Figure 2-59. Removing "Paper Guide, Front"/"Roller EJ Assy." (1)

DISASSEMBLY AND ASSEMBLY Disassembly 77

EPSON Stylus Photo R320 Revision B

 External View

Hook

Roller, PF Assy.

Paper Guide, Front

Guide, Shaft, Frame EJ, Right

Hooks

Extension Spring, Push Up, Plate, Left

9. Remove "Extension Spring, Push Up, Plate, Right" from the hooks (x2) of "Guide, Shaft, Frame EJ, Right".

10. Release the hook which secures "Paper Guide, Front", then remove "Paper Guide, Front".

11. Remove the "Poro us Pad, Paper Guide, Fron t", "Porous Pad, Paper Guide, Left", and "Porous Pad, Paper Guide, Front, Support"(x3) with tweezers from "Paper Guide, Front". (Refer to 2.3.5 Removing Porous Pad, Paper Guide, Front, Left, Supp ort )

C A U T I O N

 Do not touch "Porous Pad, Paper Guide, Front".  Do not damage the rib located on the upper surface of "Paper

Guide, Front".

 Take care not to damage the surface of "Roller, PF Assy.".

Figure 2-60. Removing "Paper Guide, Front"/"Roller EJ Assy." (2)

DISASSEMBLY AND ASSEMBLY Disassembly 78

EPSON Stylus Photo R320 Revision B

 External View

Grounding Spring, EJ Left

Dowel

Bushing, 5

Rubber Rollers

Figure 2-61. Removing "Paper Guide, Front"/"Roller EJ Assy." (3)

Grounding Spring, EJ Right

Roller EJ Assy.

Bushing, 5

Dowel

12. Remove "Grounding Spring, EJ Left (Right)" from "Roller EJ Assy.".

13. Release the dowels of both left and rig ht "Bushi ng, 5" which secure "Roller EJ Assy.", then turn them in the direction of the arrow.

14. Pull out the right "Bushing, 5" rightward, and pull out the left edge of "Roller EJ Assy." from the left side of "Frame, Main" and then remove the Assy from right side of "Frame, Main".

C A U T I O N

When removing "Roller EJ Assy.", do not damage the rubber rollers.

DISASSEMBLY AND ASSEMBLY Disassembly 79

EPSON Stylus Photo R320 Revision B

 Reinstalling "Paper Guide, Front"

 Make sure that the dowels and the hook of "Paper Guide,

Front" are correctly secured to "Frame, Main".

Hook

Figure 2-62. Reinstalling "Paper Guide, Front"

Dowels

 Make sure that the tabs of "Porous Pad, Paper Guide, Front,

Left" and "Porous Pad, Paper Guide, Front, Support" are facing straight to downward through the slots of "Paper Guide, Front".

 Make sure that there is no gap between "Paper Guide,

Front" and "Frame, Main".

 If any ink leaks on the rib of "Paper Guide, Front", clean it

with a cotton swab. (At this time, take care not to touch "Porous Pad, Paper Guide, Front" of "Paper Guide, Front" with the cotton swab.)

 Reinstalling "Roller EJ Assy."

 Make sure that both left and right "Bushing, 5" are

correctly secured.

 Make sure that "Grounding Spring, EJ Left (Right)" is

correctly attached to the both ends of "Roller EJ Assy.".

 When installing "PF Timing Belt", do not damage the teeth

of "Spur Gear, 41.48".

 Make sure that "Roller EJ Assy." moves smoothly.

A D J U S T M E N T

R E Q U I R E D

 When replacing "Roller EJ Assy.", apply G-26 grease in the

adequate dose to the specified points.

 When having removed or replaced "Paper Guide, Front",

implement the following adjustment. (Refer to Chapter 3 "ADJUSTMANT")

1. First Dot Adjustment

2. PW Sensor Adjustment

3. Head Angular Adjustment

4. Bi-D Adjustment

DISASSEMBLY AND ASSEMBLY Disassembly 80

EPSON Stylus Photo R320 Revision B

2.3.21 Removing PF Motor

 External View

Spur Gear, 37.242

Compression

Spring, 1.27

PF Timing Belt

Spur Gear, 41.48

Holder, Idle Roller

Spacer Insulator

Pinion Gear PF Motor

Hexagon Nuts, M3 (5-7kgf•cm)

Compression Spring, 1.53 (Only this point)

Insulator, Motor, PF

 Procedure for Removing

1. Remove "PF Timing Belt" from "Spur Gear, 37.242", then remove "Spur Gear, 41.48".

2. Remove "Compression Spring, 1.27" and "Holder, Idle Roller" together with "Timing Belt".

3. Remove the nuts (x4) which secure "PF Motor", then remove "PF Motor".

C A U T I O N

 When removing "PF Motor", do not damage the pinion gear.  When removing "PF Motor", "Compression Spring, 1.53" may

detach and drop. Be careful not to lose it.

 Reinstalling "PF Motor"

 Make sure to tighten the nuts of "PF Motor" in the order

shown in the figure.

 Make sure that there is no gap between "Spacer, Insulator"

and "Frame, Main".

Figure 2-63. Removing "PF Motor"

 Parts/Units which should be removed before removing "PF Motor"

Paper Support Assy./Preview Monitor Unit/Housing, Upper/Housing, Middle/ Main Board Unit/ASF Assy./Holder, Shaft Assy./Printer Mechanism

DISASSEMBLY AND ASSEMBLY Disassembly 81

ADJUSTMENT

CHAPTER

EPSON Stylus Photo R320 Revision B

3.1 Adjustment Items and Overview

This chapter describes adjustments to be made after the disassembly/reassembly of this product.

3.1.1 Servicing Adjustment Item List

The adjustment items of this product are as follows. For details of the adjustment items, refer to the detailed procedures and sketches of the adjustment items.

Table 3-1. Adjustment Items

Function Item Purpose Method Outline Tool Used Media

Market Setting At the time of Main Board replacement, this adjustment is made

to write the board common information on a destination basis.

USB ID Input This adjustment is made to allow the PC to recognize the

connected printers individually when multiple printers of the same model are connected and used with the PC via a USB hub.

Head ID Input At the time of Print Head replacement, this adjustment is made

to correct head manufacturing variations and eliminate the individual differences of print quality.

Head Angular Adjustment

Adjustment items

Bi-D Adjustment This adjustment is made to correct the print ti ming in the go and

PW Sensor Adjustment

This adjustment is made to correct the error in the Print Head mounting position (angle of the Print Head to the paper surface) to keep the nozzle intervals uniform in the CR main scanning direction.

return paths in bi-directional printing. (This printer carries out printing with PG (typ.) and PG (-))

This adjustment is made to correct the mounting position of the PW Sensor on a software basis to minimize the paper detection error caused by the variations of the mounting position.

Select and execute this function in the exclusive servicing program to save the following data into the EEPROM.

Market ID, CSIC Printer ID, D4 Setting (USB, Parallel), First Dot Adjustment fixed value.

Select this function in the exclusive servicing program and enter the serial numbers of the printers. The correction value is saved to the specific EEPROM address on the Main Board.

Enter the ID of the Head QR code label applied to the Print Head into the exclusive servicing program to save it to the EEPROM on the Main Board. (Supplement: Read the QR code label from left to right on the top row and from top to bottom in due order.)

Select this function in the exclusive servicing program and print the adjustment pattern. Check the displacement amount of the pattern. Print the exclusive pattern again and adjust the displacement amount.

Select this function in the exclusive servicing program and print the adjustment patterns to check the displacement amoun ts of the patterns. Select/enter the pattern number that has the smallest displacement amount in the program. Print the exclusive patterns again and adjust the displacement amount. The correction value is saved into the EEPROM.

Select this function in the exclusive servicing program and print the adjustment patterns. Select the pattern number 5mm away from each edge, and enter that number in the program. The correction value is saved to the specific EEPROM address on the Main Board.

Exclusive servicing program

Non-target

Photo

Quality Ink

Jet Paper

(A4)

Plain paper

(A4)

Photo Paper / Glossy Photo

Paper (A4)

ADJUSTMENT Adjustment Items and Overview 83

EPSON Stylus Photo R320 Revision B

Table 3-1. Adjustment Items

Function Item Purpose Method Outline Tool Used Media

First Dot Adjustment

Offset Input for CR Motor Calorific Limitation

Adjustment items

This adjustment is made to correct the First Dot Position in the CR main scanning direction.

When the Main Board, CR Motor or PSB/PS E Board is changed individually, this adjustment is made to write the maximum offset to prevent the occurrence of damage to the motor at the time of CR Motor heat generation.

However, when the CR Guide Shaft is changed together with the above part, this adjustment is made to measure the manufacturing variations of the CR Motor and PSB/PSE Board, utilize the motor capability to the maximum for motor heat generation control, and prevent the motor from being damaged by CR Motor heat generation.

Select and execute this function in the exclusive servicing program. Enter the correction value in the program using the rule position of the print pattern as a reference. The correction value is saved to the specific EEPROM address on the Main Board.

Select and execute this function in the exclusive servicing program to save the offset into the EEPROM.

Exclusive servicing program

Plain paper

(A4)

Non-target

Table 3-2. Maintenance Functions

Function Item Purpose Adjustment Outline Tool Used Media

Head Cleaning This function is used to execute Cleaning efficiently when ink is

not delivered from the Head properly, e.g. dot missing or skewed injection. This function is used together with the Nozzle Check Pattern to confirm the Cleaning effects.

Ink Charge This function is used to drain the Shipping Liquid in the ASP

Print Head flow path and simultaneously fill ink in the head flow path to make all nozzles printable and stabilize the ink in the Print Head.

Select this function in the exclusive servicing program, and execute CL 3.

Select this function in the exclusive servicing program, and execute the ink sucking operation equivalent to the Initial Charge.

Exclusive servicing program

Non-target

Waste Ink Pad Counter

Maintenance items

EEPROM Data Copy

This function is used after repair to read the Waste Ink Counter, and if the value is close to the predetermined near-end value or end value, recommend Pad replacement to the user in order to prevent the repaired printer from being returned again for repair in a short time. The reset function is used to re set the W aste Ink Counter from the exclusive program after Waste Ink Pad replacement.

This function is used to read the above necessary information from the EEPROM of the faulty Main Board using the D4 function to reduce the auxiliary adjustment items at the time of Board replacement.

Select this function in the exclusive servicing program, read/display the current data from the specific EEPROM address on the Main Board, and check whether the current counter value is close to the upper limit or not.

For the reset function, select this function in the exclusive servicing program after Waste Ink Pad replacement, and reset the corresponding data at the specific address in the EEPROM on the Main Board.

Select this function in the exclusive servicing program, and read the data from the faulty board. After that, change the Main Board and then write the read data to a new board.

Exclusive servicing program

Non-target

ADJUSTMENT Adjustment Items and Overview 84

EPSON Stylus Photo R320 Revision B

Table 3-3. Check Pattern Printing

Function Item Purpose Adjustment Outline Tool Used Media

A4 Normal Paper Print

A4 Photo Quality Ink Jet Paper Print

A4 Photo Paper/ Glossy Photo Paper Print

Check pattern items

CD-R Print Check if the center position of CDR is correct. This pattern is used to make a simple print check at the EPSON

Nozzle Check Pattern Print

This pattern is used to check whether all adjustment results are normal.

This pattern is used to check simply whether all nozzles deliver ink or not.

Select this function in the exclusive servicing program, print the print patterns, and check the adjustment result in each pattern.

service company.

This pattern is used to make a simple print check at the EPSON service company.

Exclusive servicing program

Plain paper

(A4)

Photo

Quality Ink

Jet Paper

(A4)

Glossy Photo

Paper (A4)

Sheet, CD,

Dummy

Plain paper

(A4)

Table 3-4. Appendix

Function Item Purpose Adjustment Outline Tool Used Media

Save All EEPROM Data

APG Check This function is used to check if APG Assy. works properly. Select this function in the exclusive servicing program, and check the

Appendix items

This function is used to analyze defective products. Save the data of all EEPROM addresses. Exclusive

servicing program

Exclusive

CR Guide Shaft movement.

servicing program

Non-target

ADJUSTMENT Adjustment Items and Overview 85

EPSON Stylus Photo R320 Revision B

3.1.2 Replacement Part-Based Adjustment Priorities

The following table shows the adjustment items and their order for the replacement parts.

Note: "Required" in this table indicates the adjustment items that must be implemented when the

corresponding parts/units have been removed or replaced. "Recommended", on the other hand, indicates those which are recommended the adjustment after removing or replacing them. "-" means the adjustment is not needed. When having removed or replaced more than one part/unit, refer to the items that correspond to the parts/units.

Table 3-5. Adjustment Item

Performance Priority 1 2 3 4 5 6 7 8 9 10 11 12

Head Angular Adjustment

Bi-d Adjustment

"ASF Unit" Removal "ASF Unit" Replacement "CR Motor" Removal "CR Motor" Replacement "Paper Guide Upper" Removal "Paper Guide Upper"

Replacement "Front Frame" Removal "Front Frame" Replacement "CR Unit" Removal "CR Unit" Replacement "Print Head" Removal "Print Head" Replacement "Main Board" Removal "Main Board" Replacement

(Read OK) "Main Board" Replacement

(Read NG)

"Holder Shaft Unit" Removal "Holder Shaft Unit"

Replacement "CR Guide Shaft" Removal "CR Guide Shaft" Replacement

EEPROM Data Copy

Required------

Market Setting

- - - - - - - Required - - - -

-------Required----

- - - - - - - Required Required Recommended Required -

- - - - - - - Required Required Recommended Required Required

- - - - - - - - - - - -

------------

- - - - - - - - - - - -

------------

- - - - - - Required Required Required Recommended Required -

- - - - - - Required Required Required Required Required -

- - - - Required Required Required Required Required Required Required -

- - - - - - - - - - - -

- Required Required

------------

- - - - - - - - - - - -

- - - - - - Required Required Required - Required -

- - - - - - Required Required Required - Required Required

USB ID Input

Waste Ink Pad Counter

Required

(Replacing

Waste Ink

Pads)

Ink Charge

- Required - Required Required Required Required Required

Head ID Input

PG Adjustment

First dot Adjustment

-----

PW Sensor Adjustment

Offset Input for CR Motor Calorific Limitation

ADJUSTMENT Adjustment Items and Overview 86

EPSON Stylus Photo R320 Revision B

Performance Priority 1 2 3 4 5 6 7 8 9 10 11 12

"Paper Eject Roller" Removal "Paper Eject Roller"

Replacement "PSB/PSE Board" Removal "PSB/PSE Board" Replacement "Paper Guide Front" Removal "Paper Guide Front"

Replacement "PF Motor" Removal "PF Motor" Replacement "Waste Ink Pads" Removal "Waste Ink Pads" Replacement "PW Sensor" Removal "PW Sensor" Replacement "Printer Mechanism" Removal

*1)

EEPROM Data Copy

Market Setting

- - - - - - - - - - - -

------------

- - - - - - - - - - - -

-----------Required

- - - - - - - Recommended Recommended Recommended Required -

-------RecommendedRecommendedRecommendedRequired-

- - - - - - - - - - - -

------------

- - - - - - - - - - - -

---Required--------

- - - - - - - - Required - - -

--------Required---

- - - - - - Recommended - - - - -

USB ID Input

Waste Ink Pad Counter

Ink Charge

Head ID Input

PG Adjustment

First dot Adjustment

PW Sensor Adjustment

Head Angular Adjustment

Bi-d Adjustment

Offset Input for CR Motor Calorific Limitation

"Printer Mechanism" Replacement *1)

"Ink System" Removal "Ink System" Replacement

------Recommended-----

- - - - - - - - - - - -

------------

*1) The adjustment has been completed at the unit level of ASP supply. However, since "Main Board", "Print Head" and "ASF" are supplied separately, refer to the each item that corresponds to the part/

unit.

ADJUSTMENT Adjustment Items and Overview 87

EPSON Stylus Photo R320 Revision B

3.2 Adjustment by using adjustment program

The procedures of the adjustment items will be explained here. The intended item is as follows.

 Market Setting  USB ID Input  Head ID Input  Head Angular Adjustment  Bi-d Adjustment  PW Sensor Adjustment  First Dot Adjustment  Offset Input for CR Motor Calorific Limitation  A4 Normal Paper Print  A4 Photo Quality Inkjet Paper Print  A4 Photo Paper/ Glossy Photo Paper Print

3.2.1 Market Setting

[Adjustment Procedure]

1. Select the Market Setting of the Adjustment Program.

2. Click the [OK] button to write the specific data into EEPROM.

3. Click the [Check] button to check market and model name.

3.2.2 USB ID Input

[Adjustment Procedure]

1. Select USB ID in the Adjustment Program.

2. Enter the 10-digits serial number from the label applied to the back side of the Housing Frame.

3.2.3 Head ID Input

[Adjustment Procedure]

1. Select the Head ID of the Adjustment Program.

2. Enter the 15-digits code of the Head ID label applied to the Print Head. Enter the Head ID from left to right on the top row and from top to bottom in due order.

ADJUSTMENT Adjustment by using adjustment program 88

EPSON Stylus Photo R320 Revision B

3.2.4 Head Angular Adjustment

[Adjustment Procedure]

1. Select Head Angular Adjustment in the Adjustment Program.

2. Click the [Print] button to print Head Angular Adjustment Pattern.

3. Select the value of pattern which is most straight among the patterns.

4. Click the [input] button and write the adjustment value. (Note: The range of the adjustment value is -3 to 3.)

[Treatment procedure for NG product]

1. Replace the Print Head with new one again.

2. Print the check pattern, and check the adjustment result.

3. If the result is NG level, confirm the installation condition of removed parts during disassembly.

4. Perform step2) again.

OK pattern

NG pattern

[Judging Standard]

- The printed line should be straight line. [Reference: Standard value in manufactory]

- Standard: ± 50µm

3.2.5 Bi-d Adjustment

[Adjustment Procedure]

1. Select Bi-D Adjustment in the Adjustment Program.

2. Click the [Print] button to print Bi-D Adjustment Pattern.

3. After selecting the pattern that has the smallest misalignment in each variable dot, click the [Go to input page] button in the Adjustment Program.

4. Click the [Input] button to write the adjustment value of checked items.

5. Click the [Go to print page] button.

[Treatment procedure for NG product]

1. Replace the Print Head with new one again.

2. Print the check pattern, and check the adjustment result.

3. If the result is NG level, confirm the installation condition of removed parts during disassembly.

4. Perform step2) again.

OK pattern NG pattern

[Judging Standard]

- No gap/overlap between short block pattern and long one.

[Reference: Standard value in manufactory] VSD1: 60µm, VSD2: 60µm, VSD3: 40µm, VSD4: 40µm, ECO: 85µm.

Figure 3-1. Head Angular Printing Pattern

Figure 3-2. Bi-D Adjustment Pattern

ADJUSTMENT Adjustment by using adjustment program 89

EPSON Stylus Photo R320 Revision B

3.2.6 PW Sensor Adjustment

[Adjustment Procedure]

1. Select PW Sensor Adjustment in the Adjustment Program.

2. Click the [Print] button to print PW Sensor Adjustment Pattern.

3. Select the pattern number 5mm away from each edge.

4. Click the [Input] button to write the adjustment value of checked items. [Treatment procedure for NG product]

1. Replace the PW sensor with new one again.

2. Print the check pattern, and check the adjustment result.

3. If the result is NG level, confirm the installation condition of removed parts during disassembly.

4. Perform step2) again.

[Judging Standard]

- Top / Bottom: 3.7 to 6.0mm

- Right / Left : 4.0 to 5.5mm

3.2.7 First Dot Adjustment

[Adjustment Procedure]

1. Select First Dot Adjustment in the Adjustment Program.

2. Click the [Print] button to print First Dot Adjustment Pattern.

3. Determine the adjustment value in the shifting direction for the pattern printed on the left margin. Input can be made in 0.0176mm increments for the adjustment value of 1.

4. Click the [input] button and write the adjustment value.

[Treatment procedure for NG product]

1. Replace the repaired (replaced) part with new one.

2. Print the check pattern, and check the adjustment result.

3. If the result is NG level, confirm the installation condition of removed parts during disassembly.

[Judging Standard]

- Standard: 3 ± 1.0mm away from left edge.

Figure 3-4. First Dot Adjustment

Figure 3-3. PW Sensor Adjustment Pattern

ADJUSTMENT Adjustment by using adjustment program 90

EPSON Stylus Photo R320 Revision B

3.2.8 Offset Input for CR Motor Calorific Limitation

[Adjustment Procedure]

1. Select Offset Input for CR Motor Calorific Limitation in the Adjustment Program.

2. Check each box of the replaced parts/units checklist and then click the [OK] button.

3.2.9 A4 Normal Paper Print

[Adjustment Procedure]

1. Select A4 Normal Paper Print in the Adjustment Program.

2. Click the [Print] button to print A4 Normal Paper Print Pattern.

3. Check the adjustment result in each pattern.

3.2.10 A4 Photo Quality Inkjet Paper Print

[Adjustment Procedure]

1. Select A4 Photo Quality Inkjet Paper Print in the Adjustment Program.

2. Click the [Print] button to print A4 Photo Quality Inkjet Paper Print Pattern.

3. Check the adjustment result in each pattern.

3.2.11 A4 Photo Paper/ Glossy Photo Paper print

1. Select A4 Photo Paper/ Glossy Photo Paper print in the Adjustment Program.

2. Click the [Print] button to print A4 Photo Paper/ Glossy Photo Paper print Pattern.

3. Check the adjustment result in each pattern.

ADJUSTMENT Adjustment by using adjustment program 91

EPSON Stylus Photo R320 Revision B

3.3 Adjustment Except Adjustment Program

Following is adjustment except Adjustment Program.

3.3.1 PG Adjustment

[Purpose] This adjustment is required when removing or replacing the following parts/units in

order to secure the specified space between the print-side of the Print Head and the paper.

 Carriage Unit  CR Guide Shaft  Bushing, Parallel Adjust, Left (Right)

(Including when having moved "Bushing Parallel Adjust, Left (Right)")

[Adjustment Procedure]

1. Make both sides of the two Thickness Gauge (1.15mm and 1.31mm) clean by wiping with Bemcot with a little alcohol.

2. To make the PG position minus (-), turn the gear of "APG Assy." and match the flag centre of "Cam, CR, Right" with "PG Sensor".

Gear of "APG Assy."

Cam, CR, Right

Flag

PG Sensor

Figure 3-5. Setting PG Position

3. Match the 0 position (Hole point of gear) of "Bushing, Parallel Adjust, Left (Right)" with the rib of "Frame, Main".

Bushing, Parallel Adjust, Left

Ribs

Bushing, Parallel Adjust, Right

Ribs

Hole point

Figure 3-6. Setting "Bushing, Parallel Adjust"

4. Move "Carriage Unit" to the centre of the printer and remove "Lever, Cartridge". Then, set the PG-Adjustment Dummy Cartridge.

ADJUSTMENT Adjustment Except Adjustment Program 92

EPSON Stylus Photo R320 Revision B

5. Move "Carriage Unit" to the left edge of the printer, then set the Thickness Gauge (1.15mm) on the left ribs (X3) of "Paper Guide, Front".

Ribs

Thickness Gauge

Figure 3-7. Setting Thickness Gauge

6. Implement PG Adjustment on the left according to the flowchart in the Figure 3-8.

Start

Move "Carriage Unit" to

the right by using

"Timing Belt".

Does the Thickness

Gauge move?

Take down "Bushing, Parallel

Adjust, Left" toward the

printer front by 1 notch.

Take up: PG gets wider

Note: Take down toward the printer front by 1 notch:

PG gets narrower. Take up toward the printer back by 1 notch: PG gets wider.

Yes

Take up "Bushing, Parallel

Adjust, Left" toward the

printer back by 1 notch.

Move "Carriage Unit" to

the right by using

"Timing Belt".

Does the Thickness

Gauge move?

Yes

7. Remove the Thickness Gauge and move "Carriage Unit" to the right edge. Then, set the Thickness Gauge on the right ribs (X3) of "Paper Guide, Front".

Ribs

Thickness Gauge

Figure 3-9. Setting Thickness Gauge

8. Implement PG Adjustment on the right according to the flowchart in the Figure 3-10.

Start

Move "Carriage Unit" to

the left by using "Timing

Belt".

Does the Thickness

Gauge move?

Take down "Bushing, Parallel

Adjust, Right" toward the

printer front by 1 notch.

Take down: PG

gets narrower

PG gets wider

Note: Take down toward the printer front by 1 notch:

PG gets narrower. Take up toward the printer back by 1 notch: PG gets wider.

Yes

Take up "Bushing, Parallel

Adjust, Right" toward the

printer back by 1 notch.

Move "Carriage Unit" to

Take up:

the left by using "Timing

Belt".

Does the Thickness

Gauge move?

Yes

Take down: PG gets narrower

Figure 3-8. PG Adjustment (Left Side)

Go to Step 7.

Go to Step 9.

Figure 3-10. PG Adjustment (Right Side)

ADJUSTMENT Adjustment Except Adjustment Program 93

EPSON Stylus Photo R320 Revision B

9. After finishing PG Adjustment on the right, move "Carriage Unit" to the left edge again, then check PG according to the flowchart in the Figure 3-11.

Start

Move "Carriage Unit" to

the right by using

"Timing Belt".

Does the Thickness

Gauge move?

Go to Step 10

Take up: PG gets wider

Take down: PG gets narrower

Note: Take down toward the printer front by 1 notch:

PG gets narrower. Take up toward the printer back by 1 notch: PG gets wider.

Yes

Take up "Bushing, Parallel

Adjust, Left" toward the

printer back by 1 notch.

Move "Carriage Unit" to

the right by using

"Timing Belt".

Does the Thickness

Gauge move?

Go Back to Step 7

Yes

Figure 3-11. PG Checking (1)

10. Move "Carriage Unit" back to the left edge of the printer, then set the Thickness Gauge (1.31mm) on the ribs (X3) of "Paper Guide, Front" in the same way as the Figure 3-7.

11. Check PGs on both the left and right according to the flowchart in the Figure 3-12.

Start

Check left PG.

Move "Carriage Unit" to

the right by using

"Timing Belt".

Does the Thickness

Gauge move?

Yes

Check right PG.

Move "Carriage Unit" to the left by using "Timing

Belt".

Does the Thickness

Gauge move?

Yes

Go to Step 12

Go Back to Step 3

Figure 3-12. PG Checking (2)

12. After finishing the adjustme nt , screw "Bushing, Parallel Adjust, Left (Right)".

13. After screwing, check PGs on both the left and right again according to the flowchart in the Figure 3-12.

ADJUSTMENT Adjustment Except Adjustment Program 94

EPSON Stylus Photo R320 Revision B

3.4 Firmware Updating

The Controller Firmware (Direct Print section, Storage section) of this printer can be updated using a memory card* (CF/Smart Media/Memory Stick/xD-Picture Card).

*Limited to a 128MB or less memory card.

3.4.1 Firmware Updating Procedure

1. Preparations for updating Save the Firmware into the memory card formatted in FAT12 or FAT16. Save the file under the name "FWE82TLS.DAT".

NOTE:

2. Start of updating Perform updating when powering on the printer. This writing operation does not initialize the Printer Mechanism. The messages displayed on the Panel are in English only.

 Updating starting operation

It is recommended to save only the above file in the memory card.

Insert the memory card into the printer in advance, turn on the printer while holding down the OK button, Stop button and Print Start button simultaneously.

3. Automatic execution of updating Updating is executed automatiaclly, After updating start operation executed.

Status Process Writing Display

Data being read from the memory card

Flash ROM being erased

*When Flash ROM is being erased, progress

mater indicates (Step 0 to17).

PROGRAM DOWNLOAD MODE NOW READING DATA FILE

PROGRAM DOWNLOAD MODE NOW ERASING A CHIP



Flash ROM being rewritten

PROGRAM DOWNLOAD MODE NOW UPDATING FIRMWARE

Normal termination XXXX indicates the check sum of the Firmware. (4-digit hexadecimal number) MRXXXX indicates the design version of the Controller Firmware. digits are fixed.)

(6 digits. 4 most significant

PROGRAM DOWNLOAD MODE FINISED SUMCODE XXXX VERSION MRXXXX

ADJUSTMENT Firmware Updating 95

EPSON Stylus Photo R320 Revision B

3.4.2 Abnormal Updating Termination

If a Firmware updating was unsuccessful for some reason, an error is displayed by factor.

Table 3-6. Errors and Remedies

Error Details Display Remedy

Memory Card Initialization Error

The initialization of the memory card inserted is not completed.

PROGRAM DOWNLOAD MODE CARD INITIALIZE ERROR

1. Power off the printer and attempt updating again.

2. Replace the media.

3. Replace the Board.

Data Read Error Data cannot be read from the inserted memory

card, or the memory card was removed while

PROGRAM DOWNLOAD MODE DATA READ ERROR

1. Power off the printer.

2. Format the memory card and re-save the update file.

data was being read from the memory card.

Update File Error There is no FWE82TLS.DAT file. 1. Power off the printer.

Power was switched off midway during previous updating.

If the printer was powered off midway during Firmware updating, a warning is given at the next updating. (Note that this applies to only the case where the same memory card is used for

PROGRAM DOWNLOAD MODE DATA FILE IS NOT FOUND

PROGRAM DOWNLOAD MODE PREVIOUS UPDATE ERROR

2. Save FWE82TLS.DAT on the route directory.

If power is switched off before completion of updating, the file attributes of FWE82TLS.DAT are set in the Hidden file. When you want to update the Firmware from the same card, remove the hidden attributes or format the memory card, and then save a new FWE82TLS.DAT file.

updating.)

No Memory Card* The memory card is not inserted in the Card Slot

when the printer is powered on.

PROGRAM DOWNLOAD MODE INCERT A MEDIA INTO CARD SLOT

Insert the memory card.

Note "*": After the memory card is inserted, automatic updating starts immediately. However, it is recommended to perform updating with the memory card inserted in advance.

ADJUSTMENT Firmware Updating 96

MAINTENANCE

CHAPTER

EPSON Stylus Photo R320 Revision B

4.1 Overview

This section provides information to maintain the printer in its optimum condition.

4.1.1 Cleaning

This printer has no mechanical components which require regular cleaning except the Print Head. When servicing, check the following parts and perform appropriate cleaning if stain is noticeable.

C A U T I O N

 Housing

Use a clean soft cloth moistened with water and wipe off any dirt. If the Housings are stained with ink, use a cloth moistened with neutral detergent to wipe it off.

 Inside the printer

 Never use chemical solvents, such as thinner, benzine, and

acetone to clean the exterior parts of the printer like the housing. These chemicals may deform the components of the printer or deteriorate the quality of the printer.

 Be careful not to damage any components when you clean inside

the printer.

 Do not scratch the surface of the PF Roller. Use a soft brush to

wipe off dust. Use a soft cloth moistened with alcohol to remove ink stain.

4.1.2 Service Maintenance

If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates "Maintenance Error", take the following actions to clear the error.

 Head Cleaning

If dot missing or banding phenomenon has occurred, use the Head Cleaning function and perform the Print Head cleaning operation.* This function can be performed by operating the control panel, the printer driver utility and the Adjustment Program.

When performed by operating the Control Panel, first make sure that the printer is in stand-by status. Then, select the cleaning mode by pressing the Maintenance button on the Control Panel. The message, "Beginning head cleaning" will be displayed on LED. By pressing the OK button, the printer will start the cleaning sequence.

When selecting the manual cleaning by the printer driver utility, the most appropriate cleaning mode will be selected.

The following explanation is the operation process of the printer head cleaning by the Printer Driver Utility. Refer to Chapter 3 "ADJUSTMENT" for the operation of the Adjustment Program.

* This product has three modes for Manual Cleaning, and it automatically selects

the best cleaning mode in accordance with the various conditions and performs the operation. Therefore, the consumption of the ink by the manual cleaning will vary according to the selected mode for the condition.

Use a vacuum cleaner to remove any paper dust.

 LD Roller

When the paper loading function does not operate because friction of the LD Roller has gone down due to paper dust, remove the dust by using a soft bruch or soft cloth moistened with alcohol.

MAINTENANCE Overview 98

EPSON Stylus Photo R320 Revision B

1. Select EPSON Status Monitor 3 in the Printer Driver Utility. Then make sure that the printer connected to Status Monitor 3 is on standby status. If it is on standby, the following will be displayed.

Figure 4-1. Display for Status Monitor 3

2. Select Head Cleaning in the Printer Driver Utility and execute the Head Cleaning. After the cleaning, choose "Nozzle Check" and print the Nozzle Check Pattern. If repeating the Print Head cleaning operation without choosing "Nozzle Check", CL1, the weakest cleaning, will be repeated.

 Maintenance Request Error

Ink is used for operations such as Head Cleaning as well as printing. In that case, the ink is drained into the Waste Ink Pad and its amount is counted in the Waste Ink Counter set in the EEPROM on the control board. When the value reaches the specified value (Waste Ink Counter = Waste Ink Pad Counter A = variable between 20000 and 46750), The printer judges that the Waste Ink Pad has reached its predetermined limit. The Maintenance Request Error will be displayed on Status Monitor 3 as shown below.

Figure 4-3. Maintenance Request Error Display on Status Monitor 3

If this occurs, replace the Waste Ink Pad and reset the Waste Ink Counter in the EEPROM. Resetting of the Waste Ink Counter can be done only from the Adjustment Program since this product does not have the reset function for the Waste Ink Counter through the operation Panel Switch. Refer to Chapter 3 "ADJUSTMENT" for the reset procedure. During repair service, the Waste Ink Counter must be checked according to the firmware version, the Main Board checker program version and the Nozzle Check Pattern of the Nozzle Check Pattern Print. Because another "Maintenance Request Error" could occur after returning the repaired product to the user, if the Waste Ink Counter is close to its limit, it is recommended that the Waste Ink Pad be replaced.

Figure 4-2. Head Cleaning Functions of the Print Driver Utility

MAINTENANCE Overview 99

EPSON Stylus Photo R320 Revision B

4.1.3 Lubrication

The lubrication used for the components of Stylus Photo R320 has been decided on based on evaluation carried out by Epson. As a result, the specified amount of lubricant should be applied in the places specified when carrying out repair and maintenance work.

 When wiping off the grease during the cleaning  If necessary when performing assembly/disassembly of the printer

C A U T I O N

 Never use oil or grease other than those specified in this manual.

Use of different types of oil or grease may damage the components or affect the printer functions.

 Never apply a larger amount of oil or grease than specified in this

manual.

Table 4-1. Oil Applied to Stylus Photo R320

Type Name EPSON Code Supplier

G-26 1080614

Grease

G-63 1218320

EPSONG-46 1039172

 Refer to the following figures for the lubrication points.

1. Contact point between "Grounding Spring, PF" and

Grounding Spring, PF

Bushing, 5 left

Paper Guide, Rear

Roller, PF

Bushing, 5 right

"Roller, PF"

2. Surface of contact point between "Roller PF" and "Paper Guide, Rear"

1. G-26

2. G-26

1. Half periphery of "Roller, PF"

2. 4mm x 2 points

Use a syringe to apply it

Inside surface of "Bushing, 5" (Roller EJ Assy.)

C A U T I O N

 When using G-64, it is recommended to use a flux dispenser

G-26

(1049533) together.

Adequate dose

Use a cotton-tipped swab to apply it

MAINTENANCE Overview 100

EPSON R320 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice

PRECAUTIONS

About This Manual

Revision Status

CONTENTS

TROUBLESHOOTING

1.1 Overview

1.2 Troubleshooting with LED/LCD Indications and Status Monitor 3 Message

1.3 Unit Level Troubleshooting

DISASSEMBLY AND ASSEMBLY

2.1 Overview

2.1.1 Precautions

2.1.2 Tools

2.1.3 Pre-Shipment Checks

2.3 Disassembly

2.3.1 Removing Paper Support Assy.

2.3.2 Removing Preview Monitor Unit

2.3.3 Removing Housing, Upper

2.3.4 Removing Housing, Middle

2.3.5 Removing Porous Pad, Paper Guide, Front, Left, Support

2.3.6 Removing Panel Board

2.3.7 Removing Stacker Assy.

2.3.8 Removing Main Board

2.3.9 Removing ASF Assy.

2.3.10 Removing Holder, Shaft Assy.

2.3.11 Removing CR Motor

2.3.12 Removing APG Assy.

2.3.13 Removing Print Head

2.3.14 Removing Carriage Unit

2.3.15 Removing Paper Guide, Upper

2.3.16 Removing Printer Mechanism/ Housing, Lower

2.3.17 Removing Power Supply Unit

2.3.18 Removing CDR Guide Assy.

2.3.19 Removing Ink System

2.3.20 Removing Paper Guide, Front/Roller EJ Assy.

2.3.21 Removing PF Motor

ADJUSTMENT

3.1 Adjustment Items and Overview

3.1.1 Servicing Adjustment Item List

3.1.2 Replacement Part-Based Adjustment Priorities

3.2 Adjustment by using adjustment program

3.2.1 Market Setting

3.2.2 USB ID Input

3.2.3 Head ID Input

3.2.4 Head Angular Adjustment

3.2.5 Bi-d Adjustment

3.2.6 PW Sensor Adjustment

3.2.7 First Dot Adjustment

3.2.8 Offset Input for CR Motor Calorific Limitation

3.2.9 A4 Normal Paper Print

3.2.10 A4 Photo Quality Inkjet Paper Print

3.2.11 A4 Photo Paper/ Glossy Photo Paper print

3.3 Adjustment Except Adjustment Program

3.3.1 PG Adjustment

3.4 Firmware Updating

3.4.1 Firmware Updating Procedure

3.4.2 Abnormal Updating Termination

MAINTENANCE

4.1 Overview

4.1.1 Cleaning

4.1.2 Service Maintenance

4.1.3 Lubrication