Epson Stylus Photo R340, Stylus Photo R350 Service Manual

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SERVICE MANUAL

Color Inkjet Printer

EPSON Stylus Photo R340/350

SEIJ05008

	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.

6.WHEN USING COMPRESSED AIR PRODUCTS; SUCH AS AIR DUSTER, FOR CLEANING DURING REPAIR AND MAINTENANCE, THE USE OF SUCH PRODUCTS CONTAINING FLAMMABLE GAS IS PROHIBITED.

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

Symbols Used in this Manual

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:

•Block Diagram

•Electrical circuit boards schematics

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.

ADJUSTMENT REQUIRED

CAUTION

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.

CHECK	May indicate an operating or maintenance procedure, practice or
POINT	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.
WARNING	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 16, 2005	First Release

EPSON Stylus Photo R340/350

Revision A

CONTENTS

Chapter 1 Troubleshooting
1.1 Overview . .............................................................................................................	8
1.2 Warning/Error Messages and Possible Causes . ....................................................	9
1.3 Troubleshooting . .................................................................................................	13
1.3.1 Troubleshooting by Error Message . ..........................................................	13
1.3.2 Troubleshooting by Observed Symptom . ..................................................	30
Chapter 2 Disassembly and Assembly
2.1 Overview . ...........................................................................................................	37
2.1.1 Precautions ..................................................................................................	37
2.1.2 Tools ...........................................................................................................	38
2.1.3 Work Completion Checklist . .....................................................................	38
2.2 Ensuring the Quality of Disassembled/Reassembled Printer Mechanism .........	39
2.3 Disassembly . .......................................................................................................	41
2.3.1 Removing the Paper Support Assy. . ..........................................................	42
2.3.2 Removing the Left Housing . ......................................................................	43
2.3.3 Removing the Right Housing . ...................................................................	44
2.3.4 Removing the Panel Board/LCD Module . .................................................	46
2.3.5 Removing the Upper Housing . ..................................................................	48
2.3.6 Removing the Rear Housing . .....................................................................	50
2.3.7 Removing the Stacker Assy. . .....................................................................	51
2.3.8 Removing the Front Paper Guide Porous Pads . .........................................	52
2.3.9 Removing the Main Board Assy. . ..............................................................	54
2.3.10 Removing the ASF Assy. . .......................................................................	58
2.3.11 Removing the Shaft Assy. Holder . ..........................................................	62
2.3.12 Removing the CR Motor . ........................................................................	66
2.3.13 Removing the Print Head . ........................................................................	67
2.3.14 Removing the Upper Paper Guide . ..........................................................	69
2.3.15 Removing the Printer Mechanism . ..........................................................	70
2.3.16 Removing the Power Supply Assy. . ........................................................	74
2.3.17 Removing the Waste Ink Pads . ................................................................	75
2.3.18 Removing the Lower Housing . ................................................................	76
2.3.19 Removing the APG Assy. . .......................................................................	77
2.3.20 Removing the Carriage Unit . ...................................................................	78

	2.3.21 Removing the CD-R Guide Assy. . ..........................................................	84
	2.3.22 Removing the Ink System . .......................................................................	88
	2.3.23 Removing the Front Paper Guide and EJ Roller Assy. . ..........................	91
	2.3.24 Removing the PF Motor . .........................................................................	95
	2.3.25 Removing the PF Roller Assy. . ...............................................................	96
Chapter 3 Adjustment
3.1	Adjustment Items and Overview . .......................................................................	99
	3.1.1 Replacement Part-Based Adjustment Priorities . .......................................	99
3.2	Adjustment by using adjustment program . .......................................................	101
	3.2.1 How to judge print samples by using the adjustment program . ..............	105
	3.2.1.1 Head Angular Adjustment . ..............................................................	105
	3.2.1.2 Bi-d Adjustment . .............................................................................	105
	3.2.1.3 PW Sensor Adjustment/First Dot Adjustment/
	Top Margin Adjustment . .................................................................	106
3.3	Adjustment Except Adjustment Program . ........................................................	108
	3.3.1 PG Adjustment . .......................................................................................	108
Chapter 4 Maintenance
4.1	Overview ...........................................................................................................	112
	4.1.1 Cleaning ....................................................................................................	112
	4.1.2 Service Maintenance . ...............................................................................	112
	4.1.3 Lubrication ................................................................................................	113
Chapter 5 Appendix
5.1	Block Diagram . ................................................................................................	122
5.2	Exploded Diagram . ...........................................................................................	124
5.3	Electrical Circuits ..............................................................................................	124

C H A P T E R

TROUBLESHOOTING

EPSON Stylus Photo R340/350

1.1 Overview

This chapter describes how to troubleshoot problems. Be sure to see the tables provided in this chapter to identify the component that caused the problem you face. And follow the instructions in the table to troubleshoot the component. Also refer to the Motor Wire-Wound Resistor and Sensor Check Points.

Start

Identifying the unit (component) caused the problem

Repairing the unit (component)

Reassembly and adjustment

Finish

Figure 1-1. Troubleshooting Workflow

			Revision A
	Table 1-1. Motor Wire-Wound Resistor
Motor	Connected Pin No.	Check Point	Resistance
PF Motor	CN10	Pin 1 and 3	3.0Ω ±10%
(ASF/Pump Motor)		Pin 2 and 4	(25°C/phase)

NOTE:As the CR Motor and the APG Motor are DC motors, the resistance between the pins fluctuates. So checking them if they work properly or not is made only by observing them visually (if they rotate or not). It is, however, sometimes difficult to judge, so when in doubt, replace the motor.

Table 1-2. Sensors Check Point

Sensor	Pin No.	Check point	Signal level	Sensor Statuses
Tray Sensor	CN2	Pin 1 and 2	---	Open:
				Nipped with Star Wheel
				(ASF mode)
			---	Close:
				Star Wheel is released
				(CDR mode)
CDR Sensor	CN2	Pin 3 and 4	---	Close: CDR Tray not attached
			---	Open: CDR Tray attached
PG Sensor	CN3	Pin 1 and 2	2.4V or more	Close: PG is set to a preset amount
			0.4V or lower	Open: Switching PG setting
PE Sensor	CN4	Pin 1 and 2	2.4V or more	Close: No paper loaded
			0.4V or lower	Open: Paper is loaded

Troubleshooting

Overview

EPSON Stylus Photo R340/350

Revision A

1.2 Warning/Error Messages and Possible Causes

The following tables explain the warning/error messages displayed on the LCD and the possible causes of them. The messages are displayed during the printer is performing various sequences (feeding paper, absorbing ink or etc.) or displayed responding to the operations the user made (turning the power on, loading paper or etc.).

Table 1-3. LCD Error Messages and Possible Causes

LCD Messages

Printer Condition

Possible Causes

Recovery from Errors

Reference

---	Communication error	A communication error between the host computer and
		the printer occurred.
(Background of the ink-low status ink	The remaining amount of	This occurs when consumed amount of ink reached 90%.
cartridge icon is displayed in gray)	ink is low.
		[Caution]
		The printer can continue printing operation even after the
		warning message is displayed on the STM3 screen.
		However, the printer cannot run a head cleaning.

No ink cartridge. Set ink cartridge.		Ink related message 1*
[BK](T0481)	[M](T0483)	(No ink cartridge)
[C](T0482)	[LM](T0486)
[LC](T0485)	[Y](T0484)

Ink out. Replace the following ink		Ink related message 5*
cartridge.		(Ink Out)
[BK](T0481)	[M](T0483)
[C](T0482)	[LM](T0486)
[LC](T0485)	[Y](T0484)

Ink cartridges are not installed or not installed properly.

Occurs in the following conditions:

•The consumed ink amount reached 100%.

•Ink cartridge failure

[Caution]

The ink cartridge detected as “Ink out” is not totally empty. It still has some amount of ink. This prevents Print Head from damaging by printing without ink.

Replace the ink cartridge. For best results,		Ink related message 7*	Reading and writing of the CSIC information of the ink
use genuine EPSON ink.		(Ink cartridge failure)	cartridges could not be performed properly.
[BK](T0481)	[M](T0483)
[C](T0482)	[LM](T0486)
[LC](T0485)	[Y](T0484)

Correctly connect the printer and the computer.	p.13
Replace the ink cartridge(s) with new one(s).	---

Recovers from the error after replacement of ink

p.15

cartridge(s) has completed. [Supplement]

•The message appears within 60 seconds at maximum after the occurrence if no operation has been made during the period.

•The message appears immediately before starting a print job or cleaning.

Replace the ink cartridge(s) with new one(s).

---

Replace the ink cartridge(s) with new one(s).

p.15

NOTE "*" :The ink cartridge codes displayed on the LCD vary according to the model.

Stylus Photo R340 : [BK]T0481,[M]T0483,[C]T0482,[LM]T0486,[LC]T0485,[Y]T0484 Stylus Photo R350 : [BK]T0491,[M]T0493,[C]T0492,[LM]T0496,[LC]T0495,[Y]T0494

Troubleshooting

Warning/Error Messages and Possible Causes

EPSON Stylus Photo R340/350	Revision A
	Table 1-3. LCD Error Messages and Possible Causes (continued)

LCD Messages	Printer Condition	Possible Causes
External device is not connected or media	Backup error	Occurs in the following conditions:
is not inserted. Backup canceled.	(no external connection)	• An external device is not connected to the printer.
		• No media is set into the connected external device.
		• No image is stored on the memory card.
Insufficient space on the backup device.	Backup error	The capacity of the media specified to back up is
Backup cannot be performed.	(insufficient capacity)	insufficient.
No memory card in slot. Backup canceled.	Backup error (no card)	No memory card is inserted into the slot of the printer.
A printer error occurred. Please see your	Fatal error	Occurs in the following conditions:
manual.		• The Carriage Unit cannot move properly because of
		an external force exerted on the unit.
		• The PF Motor cannot operate properly.
Paper out. Load paper press the Start	No paper error	The PE Sensor could not detect the top edge of paper
button.		during the paper feeding sequence.
Paper or CD/DVD tray jam or feed error.	Jam error	Occurs in the following conditions:
Press the Start button. If the error does not		• The PE Sensor could not detect the bottom edge of
clear, reinsert the paper or CD/DVD tray		paper during the paper feeding operation.
and press the Start button.		• The Tray/CDR Sensor could not detect the bottom
		• The Tray/CDR Sensor could not detect the bottom
		edge of CD or DVD during the CD/DVD feeding
		operation.
Service required. Parts inside your printer	Maintenance error	This error is detected when the amount of the waste
are at end of their service life. See your		liquid absorbed by the Waste Ink Pads has reached its
manual for details.		upper limit (when the protection counter has reached its
		upper limit).
Bluetooth print adapter cannot be	BT communications error	Had no response from the Bluetooth unit when the
recognized. Please remove and reinstall		printer started the Bluetooth communication.
the adapter.

There is a problem with the IrDA interface. See your manual.

The CD/DVD tray is not set correctly. Reload the tray and press Start to continue.

IrDA communications error	Had no response from the IrDA unit when the printer
	started the infrared data communication.
CDR error (correct set)	Occurs when the printer starts to print on a CD or DVD
	without the CD/DVD tray attached.
CDR error (reset request)	The CD/DVD tray could not be detected properly when
	the printer starts to print on a CD or DVD.

Recovery from Errors	Reference
Automatically recovers from the error after a lapse	---
of three seconds.
Automatically recovers from the error after a lapse	---
of three seconds.
Automatically recovers from the error after a lapse	---
of three seconds.
Turn off the Power.	p.16
Press the Start button. The printer recovers from	p.19
the error when paper is fed correctly.
Remove the jammed paper or the CD/DVD tray.	p.21

Replace the Waste Ink Pads and reset the	---
Protector Counter.
Remove the Bluetooth unit and press the OK	---
button.
Remove the IrDA unit.	---
Automatically recovers from the error after a lapse	---
of three seconds.
Automatically recovers from the error after a lapse	---
of three seconds.

Troubleshooting

Warning/Error Messages and Possible Causes

EPSON Stylus Photo R340/350

Revision A

LCD Messages

The CD/DVD guide is open. Close the guide to print on paper.

Paper jam. Load paper and press the Start button. If the error does not clear, repeat the procedure.

The CD/DVD tray is not set correctly. Reload the tray and press Start to continue.

Error in the data. The document may not be printed correctly.

Error in the data. The document cannot be printed.

Cannot recognize the memory card or disk.

The document is too large to print with Bluetooth.

The document is too complex to print with Bluetooth.

Error in the data. The document cannot be printed.

Table 1-3. LCD Error Messages and Possible Causes (continued)

Printer Condition

CDR/DVD guide open

Name card long edge first insertion error

Paper mismatch error

A part of the reference object is broken (BTMIME).

A part of the reference object cannot be buffered (BT-MIME).

XHTML-Print document cannot be decoded (BTMIME).

Insertion of unsupported media

BT File size error

BT designation error

BT structure error

Possible Causes

Displayed in the following conditions:

•The CDR Guide Assy. is opened when the printer started to print on a cut sheet.

•The CDR Guide Assy. is opened during the printer is printing on a cut sheet.

A name card is loaded onto the printer in landscape orientation.

The center of the CD or DVD could not be detected during the CD/DVD print job.

Decoding XHTML print data was made successfully, but failed to obtain all or some reference objects included in the data due to their MIME encode errors.

The printout will result in as follows depending on what type of the missed reference objects are:

•Image objects

Blank areas on where the missed objects are supposed to be printed appear.

•CSS (style sheet) files

Background color and font size appear differently from what you expected.

Decoding XHTML print data was made successfully, but failed to obtain all or some reference objects included in the data due to insufficient memory or the number of the objects exceeded the upper limit.

Failed to decode XHTML data to print due to MIME encode errors, or XHTML-Print is not contained.

Not formatted or not compatible media is inserted.

The specified XHTML-Print data is larger than 100 K bytes.

The specified XHTML-Print data is too complicated (tag setting or etc.) to print.

XHTML-Print data could not be decoded.

Recovery from Errors	Reference
Automatically recovers from the error after a lapse	p.25
of three seconds.

Remove the jammed card following the	p.27
instruction displayed on the LCD.
Load media that match the print setting.	p.28
Press any one of the buttons on the printer.	---

Press any one of the buttons on the printer.	---
Press any one of the buttons on the printer.	---
Automatically recovers from the error after a lapse	---
of three seconds.
Press any one of the buttons on the printer.	---
Press any one of the buttons on the printer.	---
Press any one of the buttons on the printer.	---

Troubleshooting

Warning/Error Messages and Possible Causes

EPSON Stylus Photo R340/350				Revision A
	Table 1-3. LCD Error Messages and Possible Causes (continued)
LCD Messages	Printer Condition	Possible Causes	Recovery from Errors	Reference

No memory card or disk inserted, or it	Memory card print	A memory card in which has no image data is inserted.
cannot be recognized.
Cannot recognize the memory card or	Card insertion	Cannot recognize the memory card inserted into the
disk.		printer.
Cannot recognize the device.	External device installment	A not compatible memory device is connected to the port
		for the external memory devices.

Automatically recovers from the error after a lapse	---
of three seconds.
Automatically recovers from the error after a lapse	---
of three seconds.
Automatically recovers from the error after a lapse	---
of three seconds.

All photos for the specified layout are selected.

[BK](T0148) [M](T0483) [C](T0482) [LM](T0486) [LC](T0485) [Y](T0484)

The installed ink cartridges differ from the genuine EPSON ink cartridges listed below.

The use of other products may affect your print quality and could result in printer damage. Do you want to continue using the currently installed ink cartridges?

Even if borderless printing has been selected, a white border may still appear on an edge.

Memory card print onto CD/ DVD

Ink related message 3* (wrong model number of ink cartridge)

Borderless expansion

The number of images retrieved from the memory card to print on a CD exceeded the upper limit.

Non-EPSON ink cartridges are installed.

Displayed when “Minimum” is selected for the “Borderless expansion” print setting menu.

Automatically recovers from the error after a lapse	---
of three seconds.
Press the OK button or the Back button.	---

Automatically recovers from the error after a lapse	---
of three seconds.

NOTE "*" :The ink cartridge codes displayed on the LCD vary according to the model.

Stylus Photo R340 : [BK]T0481,[M]T0483,[C]T0482,[LM]T0486,[LC]T0485,[Y]T0484 Stylus Photo R350 : [BK]T0491,[M]T0493,[C]T0492,[LM]T0496,[LC]T0495,[Y]T0494

Troubleshooting

Warning/Error Messages and Possible Causes

EPSON Stylus Photo R340/350

Revision A

1.3 Troubleshooting

Be sure to first check the messages displayed on the LCD or the STM3 screen on a connected computer to identify the cause of the problem quickly. Then troubleshoot the problem following the instructions given in the tables in this section. When any components to be repaired or replaced are found, see Chapter 2 “Disassembly/Reassembly” to correctly reinstall or replace the components.

1.3.1 Troubleshooting by Error Message

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position: Anywhere

Table 1-4. Troubleshooting of Communication Errors based on Observed Symptom

Symptoms	Failed Part		Check Point	Remedies
The printer does not start up at all by	Panel Board/	1. Check if the Panel FFC is correctly connected to CN1 on		1. Correctly connect the Panel FFC to CN1 on
turning the power On.	Panel FFC	the Panel Board and CN6 on the Main Board.		the Panel Board and CN6 on the Main Board.
		CN1	Panel Board

Panel FFC

CN6

Main Board

2.Check if the Panel FFC is damaged.

3.Check if the Panel Board is damaged.

2.Replace the Panel FFC with a new one.

3.Replace the Panel Board with a new one.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position: Anywhere

Table 1-4. Troubleshooting of Communication Errors based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
The printer does not start up at all by	Power Supply	1. Check if the Power Supply Board cable is correctly	1. Correctly connect the Power Supply Board
turning the power On.	Board Assy.	connected to CN1 on the Main Board.	cable to CN1 on the Main Board.

•	Occurrence	The initialization sequence at power-on
	Timing:	is performed properly. However, a
	During	communication error occurs (an error
	operation	message is displayed on STM3 screen)
•	CR Position:	when a print job is sent to the printer.
	---

CN1
2. Check if the Power Supply Board cable or the Power	2. Replace the Power Supply Assy. with a new
Supply itself is damaged.	one.
	* If the problem still occurs after performing
	the above remedies, replace the Main Board
	Assy. with a new one.

		Power Supply Board	PowerSupply
		Cable	Assy.
USB Cable	1.	Check if the printer is correctly connected to the		1.	Correctly connect the printer to the computer
		computer with a USB cable.			with a USB cable.
Printer driver	1.	Check if the Stylus Photo R340/350 driver is used for		1.	Install the Stylus Photo R340/350 printer
		the print job.			driver on the computer.
Main Board	1.	Verify that the model name written in the EEPROM on		1.	Correct the model name stored on the
		the Main Board is correct.			EEPROM using the Market Setting menu in
					the Adjustment Program.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position: Home position

Table 1-5. Troubleshooting of Ink-related Errors (Message 1 and 7) based on Observed Symptom

Symptoms	Failed Part	Check Point	Remedies
An ink-related error occurs when the	Ink Cartridge	1. Check if the memory chip on the cartridge is chipped or	1. Replace the Ink Cartridge with a new one.
Carriage returns to the home position.		damaged.

Memory Chip
CSIC Connector 1. Check if the CSIC Connector is damaged.	1. Replace the Carriage Unit with a new one.

	CSIC Connector
CSIC Board	1. Check if the Head cable is correctly connected to the	1. Correctly connect the Head cable to the
	connector on the CSIC Board.	connector on the CSIC Board.

CSIC Board
Connector
Head Cable
2. Check if the CSIC Board is damaged.	2. Replace the CSIC Board with a new one.

Troubleshooting

Epson Stylus Photo R340, Stylus Photo R350 Service Manual

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position:

---

Table 1-6. Troubleshooting of Fatal Errors based on Observed Symptom

Symptoms	Failed Part	Check Point	Remedies
The CR Motor does not start to operate	CR Motor	1. Check if the CR Motor cable is correctly connected to	1. Correctly connect the CR Motor cable to
at all by turning the power On.		CN11 on the Main Board.	CN11 on the Main Board.
		CN11

		2.	Check the CR Motor if it works properly.	2.	Replace the CR Motor with a new one.
The Carriage Unit hits against the	PF Motor	1.	Check if the PF Motor cable is correctly connected to	1.	Correctly connect the PF Motor cable to
Change Lever which has inclined toward			CN10 on the Main Board.		CN10 on the Main Board.
the front of the printer at power-on.
			CN10





		2.	Check the PF Motor resistance with a tester if it is 3.0 Ω.	2.	Replace the PF Motor with a new one.
			See Table 1-1 on page 8.
	Ink System	1.	Check if the Compression Spring 2.36 in the Change	1.	Replace the Ink System with a new one.
			Lever has not come off.

Change Lever

Compression

Spring 2.36

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position:

---

Table 1-6. Troubleshooting of Fatal Errors based on Observed Symptom (continued)

Symptoms

Failed Part

Check Point

Remedies

The Carriage Unit hits against the Upper	Upper Paper Guide 1. Check if the Upper Paper Guide has not come off the
Paper Guide which has come off the	Main Frame.
Main Frame at power-on.
	Upper Paper Guide

The Carriage Unit hits against the right	CR Scale	1.	Check if the CR Scale gets dirt.
side of the Main Frame at power-on.
		2.	Check if the CR Scale is damaged.
		3.	Check if the CR Scale has come off or it properly runs
			through the slit of the CR Encoder Sensor.

CR Scale

CR Encoder
Sensor	Carriage Unit

1. Install the Upper Paper Guide correctly.

1.Wipe off the dirt completely or replace the CR Scale with a new one if it is stained badly.

2.Replace the CR Scale with a new one.

3.Install the CR Scale correctly.

*If the above does not solve the problem, try the following actions one by one in the order given.

1.Replace the Main Board Assy. with a new one.

2.Replace the CR Encoder Sensor with a new one.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position:

---

Table 1-6. Troubleshooting of Fatal Errors based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
The Carriage Unit hits against the right	Head Cable	1. Check if the Head cable is correctly connected to the	1. Correctly connect the Head cable to the
side of the Main Frame at power-on.		connector on the CR Encoder Sensor Board and CN9 on	connector on the CR Encoder Sensor Board
		the Main Board.	and CN9 on the Main Board.
		CN9
		CN9

Connector	Head Cable
2. Check if the Head Cable is damaged.	2. Replace the Head Cable with a new one.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-7. Troubleshooting of Paper Out Error based on Observed Symptom

Symptoms	Failed Part	Check Point	Remedies
The LD Roller shaft rotates to feed	ASF Assy.	1. Check the Hopper if it works properly during feeding	1. Reattach the Compression Spring 2.51
paper, but the Hopper does not operate.		paper.	between the ASF Frame and the Hopper
		Compression	properly.
		Compression
		Spring 2.51

Hopper
The LD Roller shaft rotates properly, but Shaft Assy. Holder 1. Check the LD Roller surface if it is free of paper dust.	1. Wipe the paper dust on the LD Roller with a
the paper is not fed at all.	clean cloth moistened with alcohol.
	* If the problem still occurs after performing
	the above remedies, replace the LD Roller
	with a new one.

LD Roller

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-7. Troubleshooting of Paper Out Error based on Observed Symptom (continued)

Symptoms	Failed Part		Check Point		Remedies
The PF Motor drive cannot be	Shaft Assy. Holder	1. Check if the Extension Spring 0.143 in the clutch		1.	Attach the Extension Spring 0.143 to the
transmitted to the LD Roller Shaft.			mechanism has not come off.		clutch mechanism properly.
			Extension Spring 0.143
			Clutch Teeth
			Guide Pin on the LD Roller Shaft
		2.	Check if the Clutch is properly engaged with the LD	2.	Properly set the hole of the Clutch onto the
			Roller Shaft with the guide pin on the shaft.		guide pin of the LD Roller Shaft.
		3.	Check if the Clutch teeth are damaged.	3.	Replace the Shaft Assy. Holder with a new
					one.
		4.	Check if the Clutch is damaged.	4.	Replace the Shaft Assy. Holder with a new
					one.
	Ink System	1. Check if the Compression Spring 2.36 in the Change		1.	Replace the Ink System with a new one.
			Lever has not come off.

Change Lever

Compression

Spring 2.36

The LD Roller Shaft cannot be set at the	Ink System	1. Check if the tip of the Change Lever is damaged.	1. Replace the Ink System with a new one.
ASF home position and paper is always
fed from the ASF Assy.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position: Anywhere other than home position

Table 1-8. Troubleshooting of Paper Jam Errors based on Observed Symptom

Symptoms	Failed Part		Check Point		Remedies
Paper feeding operation is performed	ASF Assy.	1.	Check if the ASF Assy. is properly installed.	1.	Reassemble the ASF Assy. correctly.
properly, but the paper cannot be sent		2.	Check the Paper Back Lever if it works properly during	2.	Reinstall the Paper Back Lever and the
into the printer.		2.	Check the Paper Back Lever if it works properly during	2.	Reinstall the Paper Back Lever and the
into the printer.			feeding paper.		Torsion Spring 6.45 correctly.
			feeding paper.		Torsion Spring 6.45 correctly.

Torsion Spring 6.45

Paper Back Lever
Shaft Assy. Holder 1. Check if the Torsion Spring 0.22 is properly attached.	1. Reinstall the PE Sensor Lever and the
	Torsion Spring 0.22 correctly.

		Torsion Spring 0.22
Multi-feed occurs frequently.	ASF Assy.	1. Check the Retard Roller Assy. if it works properly during	1. Attach the Extension Spring 0.45 properly to
		feeding paper.	the backside of the Retard Roller Assy.

Retard

Roller Assy.

Extension

Spring 0.45

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position: Anywhere other than home position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-8. Troubleshooting of Paper Jam Errors based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
Paper is fed into the printer, but it is	PE Sensor	1. Check if the Torsion Spring 0.22 is properly attached.	1. Engage the PE Sensor Lever and the Torsion
ejected immediately.		PE Sensor	Spring 0.22 properly.
		PE Sensor

Torsion Spring 0.22

2. Check if the PE Sensor cable is correctly connected to			2. Correctly connect the PE Sensor cable to
CN4 on the Main Board.			CN4 on the Main Board.
CN4

	3.	Check if the PE Sensor is damaged.	3.	Replace the PE Sensor with a new one.
Paper edge cannot go through between	Front Paper Guide 1.	Check if the Front Paper Guide Porous Pad is properly	1.	Install the Front Paper Guide Porous Pad
the EJ Roller and the Star Wheels.	Porous Pad	installed.		properly.

Front Paper Guide Porous Pad

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-8. Troubleshooting of Paper Jam Errors based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
Paper edge cannot go through between	EJ Frame Assy.*	1. Check if the Star Wheel Holder has not come off.	1. Install the Star Wheel Holder correctly.
the EJ Roller and the Star Wheels.

	EJ Frame Assy.	Star Wheel Holder
2.	Check if the EJ Frame Assy. is properly installed.		2.	Install the EJ Frame Assy. correctly.
3.	Check the EJ Frame Assy. for deformation (if it warped		3.	Replace the EJ Frame Assy. with a new one.
	downward).
Spur Gear 41.38* 1.	Check if the Spur Gear 41.38 is damaged.		1.	Replace the Spur Gear 41.38 with a new one.

	Spur Gear 41.38
EJ Roller Assy.*	1. Check if the EJ Roller Assy. is properly installed.	1. Install the EJ Roller Assy. correctly.

EJ Roller Assy.

* Jammed paper sometimes contacts with the Print Head and can damage the head.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-8. Troubleshooting of Paper Jam Errors based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
Top edge of paper cannot be sent to the	Upper Paper	1. Check if the Upper Paper Guide has not come off the	1. Install the Upper Paper Guide correctly.
PF Roller.	Guide*	Main Frame.
		Upper Paper Guide

* Jammed paper sometimes contacts with the Print Head and can damage the head.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position: Home position

Table 1-9. Troubleshooting of Errors at Opening the CD/DVD Guide based on Observed Symptom

Symptoms	Failed Part	Check Point	Remedies
The CD/DVD guide open error occurs at	Upper Housing	1. Check if the Tray/CDR Sensor flag on the Upper Housing	1. Replace the Upper Housing with a new one.
power-on even though the CDR Guide		is broken.
Assy. is held closed.
		Flag

Tray/CD-R Sensor 1. Check if the Tray/CDR Sensor cable is correctly			1. Correctly connect the Tray/CDR Sensor cable
connected to CN2 on the Main Board.			to CN2 on the Main Board.

CN2

2. Check if the Tray/CDR Sensor is damaged.

Tray/CD-RSensor

3. Check if the Tray/CDR Sensor cable is broken.

2.Replace the Tray/CDR Sensor with a new one.

3.Replace the Tray/CDR Sensor with a new one.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position: Home position

Table 1-9. Troubleshooting of Errors at Opening the CD/DVD Guide based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
The CD/DVD guide open error occurs at	Stacker Lock	1. Check if the Stacker Lock and the Compression Spring	1. Engage the Stacker Lock and the
power-on even though the CDR Guide		5.1 are properly engaged.	Compression Spring 5.1 properly.
Assy. is held closed.

Compression

Spring 5.1

Stacker Lock
CDR Sensor Lever 2. Check if the CDR Sensor Lever and the Torsion Spring	2. Engage the CDR Sensor Lever and the
4.26 are properly engaged.	Torsion Spring 4.26 properly.

	Torsion Spring	CDR Sensor Lever
	4.26	CDR Sensor Lever
Main Board	1. Check if any of the elements on the Main Board is		1. Replace the Main Board with a new one.
	damaged.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing:

At power-on

•CR Position: Anywhere other than home position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-10. Troubleshooting of Name Card Insertion Error based on Observed Symptom

Symptoms	Failed Part	Check Point	Remedies
The name card insertion error occurs at	PE Sensor	1. Check if the PE Sensor cable is correctly connected to	1. Correctly connect the PE Sensor cable to
power-on.		CN4 on the Main Board.	CN4 on the Main Board.
		CN4

		2.	Check if the PE Sensor is damaged.	2.	Replace the PE Sensor with a new one.
Even though a name card is properly	PW Sensor	1.	Check if the PW Sensor FFC is correctly connected to the	1.	Correctly connect the PW Sensor FFC to the
loaded in landscape orientation, the card			connectors on the PW Sensor and the CR Encoder Board.		connectors on the PW Sensor and the CR
edge cannot be sent to the PF Roller.			CR Encoder Board		Encoder Board.
			CR Encoder Board

		Connector PW Sensor FFC
	2.	Check the PW Sensor FFC for any damage.	2.	Replace the PW Sensor FFC with a new one.
	3.	Check the PW Sensor for any damage.	3.	Replace the PW Sensor with a new one.
Main Board	1.	Check if any of the elements on the Main Board is	1.	Replace the Main Board with a new one.
		damaged.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-11. Troubleshooting of CD/DVD Tray Errors based on Observed Symptom

Symptoms	Failed Part	Check Point	Remedies
A CD/DVD Tray error occurs when	CD-R Tray	1. Check if the contact portion of the CDR Tray Sensor on	1. Replace the CDR Tray Sensor with a new
attempting to print on a CD or DVD		the CDR Tray is broken.	one.
even though the CDR Tray is properly
attached.

Contact Portion

Tray Sensor Lever 2. Check if the Tray Sensor Lever and the Torsion Spring	2. Engage the Tray Sensor Lever and the
2.8 are properly engaged.	Torsion Spring 2.8 properly.
Tray Sensor Lever

Torsion

Spring 2.8

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-11. Troubleshooting of CD/DVD Tray Errors based on Observed Symptom (continued)

Symptoms	Failed Part	Check Point	Remedies
The CDR Tray center detection	CDR Tray	1. Check the white marking on the CDR Tray for any paper	1. Clean the white marking area on the CDR
sequence is canceled and the CDR Tray		dust or contamination.	Tray.
is ejected.

	White Marking
PW Sensor	1. Check the PW Sensor for paper dust or ink stain.	1. Clean the surface of the PW Sensor.

PW Sensor

2. Check if the PW Sensor FFC is correctly connected to the	2. Correctly connect the PW Sensor FFC to the
connectors on the PW Sensor and the CR Encoder Board.	connectors on the PW Sensor and the CR
CR Encoder Board	Encoder Board.
CR Encoder Board

		Connector PW Sensor FFC
	3.	Check the PW Sensor FFC for any damage.	3.	Replace the PW Sensor FFC with a new one.
	4.	Check the PW Sensor for any damage.	4.	Replace the PW Sensor with a new one.
Main Board	1.	Check if any of the elements on the Main Board is	1.	Replace the Main Board with a new one.
		damaged.

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

1.3.2 Troubleshooting by Observed Symptom

Occurrence

Timing

CR Position

•Occurrence Timing: During operation

•CR Position:

---

Table 1-12. Multi-Feed Occurs with No Error Messages displayed on the LCD or STM3 screen

Symptoms	Failed Part	Check Point	Remedies
Multiple sheets are always fed at a time	ASF Assy.	1. Check the Retard Roller Assy. if it works properly during	1. Attach the Extension Spring 0.45 properly to
from the ASF Assy., but no error		feeding paper.	the backside of the Retard Roller Assy.
messages are displayed on the LCD or
the STM3 screen.

Extension

Spring 0.45

2. Check the Paper Back Lever if it works properly during	2. Reinstall the Paper Back Lever and the
feeding paper.	Torsion Spring 6.45 correctly.

Torsion Spring 6.45

Paper Back Lever

Troubleshooting

EPSON Stylus Photo R340/350

Revision A

Occurrence

Timing

CR Position

•Occurrence Timing: Anytime

•CR Position: Anywhere

Problems

•Dot missing Mixed colors, Blank pages

Table 1-13. Abnormal Noises are Produced during Operation

Symptoms

Failed Part

Check Point

Remedies

Printing operations are performed properly, but abnormal noises are produced after turning the power On and during operations.

The bottom of the Carriage Unit comes into contact with the surface of the Front Frame.

Carriage Unit	1.	Check if the CR Guide Shaft is properly lubricated.
Ink System	1.	Check if the Change Lever moves smoothly.
EJ Frame Assy.	1.	Check if the EJ Frame Assy. has warped upward.

1.Wipe off the remaining oil on the CR Guide Shaft and re-lubricate the shaft properly.

1. Replace the Ink System with a new one.

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

The Carriage Unit hits against the Upper	Upper Paper Guide 1. Check if the Upper Paper Guide has not come off the	1. Install the Upper Paper Guide correctly.
Paper Guide while the Carriage Unit is	Main Frame.
moving.

Table 1-14. Print Quality Problems

Description	Failed Part
Ink cannot be discharged from the Print	Ink System
Head to the Cap.	(Cap Unit)

Check Point

1.Check the shielding rubber of the Cap Unit for any damage or foreign material.

Shielding Rubber

2.Check if the Compression Spring 2.53 is properly attached.

Compression

Spring 2.53

Remedies

1.Remove the foreign material from the shielding rubber.

*If the Ink System is damaged, replace it with a new one.

2.Replace the Ink System with a new one.

Troubleshooting

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