Epson P50 Service Manual

SERVICE MANUAL

Color Inkjet Printer

Epson Artisan 50/

Epson Stylus Photo T50/T59/T60/P50

Confidential

SEIJ07-004

Notice:

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

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

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

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

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice:	Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their
	respective owners. EPSON disclaims any and all rights in those marks.

Copyright © 2009 SEIKO EPSON CORPORATION.

IJP LP CS Quality Assurance Department

Confidential

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

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.

Confidential

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.PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2.OPERATING PRINCIPLES

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

CHAPTER 3.TROUBLESHOOTING

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

CHAPTER 4.DISASSEMBLY / ASSEMBLY

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

CHAPTER 5.ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 6.MAINTENANCE

Provides preventive maintenance procedures and the lists of Epsonapproved lubricants and adhesives required for servicing the product.

APPENDIX Provides the following additional information for reference:

•Exploded Diagram

•Parts List

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	Indicates an operating or maintenance procedure, practice or condition
REQUIRED	that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice, or condition CAUTION 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.

Indicates an operating or maintenance procedure, practice or condition WARNING 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.

Confidential

			Revision Status
Revision	Date of Issue		Description
A	August 8, 2007	First Release
B	September 28, 2007	[Chapter 4]
		•	"Main Board Unit" (Page 64): error correction.
		[Chapter 5]
		•	"Overview" (Page 115): error correction.
C	May 19, 2009	Revised Contents
		[All chapters]
		•	Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 added.
		[Chapter 1]
		•	"1.1 Features (p.9)" is updated.
		•	"1.2.3 Print Mode (p.11)" is updated.
		•	"1.2.4 Supported Paper (p.13)" is updated.
		•	"1.3 Interface (p.16)" is updated.
		•	"1.4.1 Electrical Specifications (p.17)" is updated.
		•	"1.4.4 Acoustic Noise (p.18)" is updated.
		•	"1.4.5 Safety Approvals (Safety standards/EMI) (p.18)" is updated.
		[Chapter 2]
		•	"2.3 Power-On Sequence (p.26)" is added.
		•	"2.4 Printer Initialization (p.28)" is added.
		•	"2.2 Electrical Circuit Operating Principles" is deleted.

[Chapter 4]

•"4.1.9 Procedural Differences (p.59)" is added.

•"4.5 Disassembly/reassembly procedures of Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 (p.99)" is added.

[Chapter 5]

•"5.3 Banding Reduction System (BRS) Adjustment / Paper Feed Amount Profile (PFP) Correction (p.115)" is updated.

[Chapter 7]

• "7.2 Electrical Circuits" is deleted.

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EPSON Artisan 50/Epson Stylus Photo T50/T59/T60/P50

Revision C

CONTENTS

Chapter 1 Product Description

1.1	Features.................................................................................................................		9
1.2	Printing Specifications........................................................................................		10
	1.2.1	Basic Specifications.................................................................................	10
	1.2.2	Ink Cartridge............................................................................................	10
	1.2.3	Print Mode ...............................................................................................	11
	1.2.4	Supported Paper.......................................................................................	13
	1.2.5	Printing Area ...........................................................................................	15
1.3	Interface..............................................................................................................		16
1.4	General Specifications........................................................................................		17
	1.4.1	Electrical Specifications ..........................................................................	17
	1.4.2	Environmental Conditions.......................................................................	17
	1.4.3	Durability.................................................................................................	18
	1.4.4	Acoustic Noise.........................................................................................	18
	1.4.5	Safety Approvals (Safety standards/EMI)...............................................	18
1.5	Operation Buttons & Indicators (LEDs).............................................................		19
	1.5.1	Operation Buttons....................................................................................	19
	1.5.2	Indicators (LEDs) ....................................................................................	19
	1.5.3 Operation Buttons & LEDs Functions ....................................................		19
	1.5.4 Errors & Remedies ..................................................................................		21

Chapter 2 Operating Principles

2.1	Overview ............................................................................................................	23
	2.1.1 Printer Mechanism...................................................................................	23
	2.1.2 Motors & Sensors ....................................................................................	24
2.2	Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP)	25
2.3	Power-On Sequence ...........................................................................................	26
2.4	Printer Initialization............................................................................................	28

Chapter 3 Troubleshooting
3.1	Overview ............................................................................................................		30
	3.1.1	Troubleshooting on Motors and Sensors.................................................	30
3.2	Warning / Error Indications................................................................................		31
	3.2.1	Error Indication Method..........................................................................	31
3.3	Troubleshooting by Error Message ....................................................................		33
	3.3.1	Troubleshooting Problems with Error Messages ....................................	33
3.4	Troubleshooting by Symptom ............................................................................		44
	3.4.1	Problems in Printing Operation...............................................................	44
	3.4.2 Power Problems.......................................................................................		49
	3.4.3	Ink-related Problems ...............................................................................	49
	3.4.4	Problems with Interfaces .........................................................................	51

Chapter 4 Disassembly/Assembly

4.1 Overview ............................................................................................................		53
4.1.1	Precautions ..............................................................................................	53
4.1.2	Tools........................................................................................................	54
4.1.3 Screws .....................................................................................................		54
4.1.4 Making a Special Tool for CSIC Board ..................................................		55
4.1.5 Work Completion Checklist....................................................................		55
4.1.6	Required Preparation before Disassembly ..............................................	58
4.1.7	Orientation Definition .............................................................................	58
4.1.8 How to Unlock the Carriage....................................................................		58
4.1.9	Procedural Differences ............................................................................	59
4.1.10	Disassembly Flowchart .........................................................................	60
4.2 Removing Exterior Parts/Components...............................................................		61
4.2.1	Printer Cover ...........................................................................................	61
4.2.2 Paper Support Assy .................................................................................		61
4.2.3	Stacker Assy / Stacker Cover ..................................................................	62
4.2.4 Upper Housing ........................................................................................		62
4.3 Removing Control Boards..................................................................................		64
4.3.1 Main Board Unit......................................................................................		64
4.3.2 Panel Assy/ Cover Open Sensor..............................................................		67

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EPSON Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50

Revision C

4.3.3	P/S Assy...................................................................................................	71
4.4 Disassembling the Printer Mechanism ...............................................................		72
4.4.1 Removing the Printer Mechanism ...........................................................		72
4.4.2	Printhead..................................................................................................	75
4.4.3 CR Scale ..................................................................................................		77
4.4.4 APG Unit .................................................................................................		78
4.4.5 Waste Ink Tray ........................................................................................		80
4.4.6 Waste Ink Pad..........................................................................................		80
4.4.7 Left & Right Guide Stackers / CDR Guide Sensor .................................		81
4.4.8	Ink System ...............................................................................................	82
4.4.9 EJ Frame Assy.........................................................................................		84
4.4.10 PF Encoder / PF Scale ...........................................................................		86
4.4.11 PF Motor................................................................................................		87
4.4.12 CR Motor...............................................................................................		87
4.4.13 CR Unit..................................................................................................		89
4.4.14 ASF Unit................................................................................................		92
4.4.15 Upper Paper Guide ................................................................................		94
4.4.16 APG Sensor Assy ..................................................................................		95
4.4.17 Front Paper Guide Assy.........................................................................		96
4.4.18 CDR Tray Sensor ..................................................................................		98
4.5 Disassembly/reassembly procedures of Epson Artisan 50/Epson Stylus Photo T50/
T59/T60/P50.......................................................................................................		99
4.5.1	Panel Assy ...............................................................................................	99
Chapter 5 Adjustment
5.1 Adjustment Items and Overview ......................................................................		104
5.1.1	Servicing Adjustment Item List.............................................................	104
5.1.2	Required Adjustments ...........................................................................	107
5.2 Using the Adjustment Program ........................................................................		109
5.2.1 Top Margin Adjustment ........................................................................		109
5.2.2 Head Angular Adjustment.....................................................................		109
5.2.3 Bi-D Adjustment ...................................................................................		110
5.2.4	PW Adjustment/First Dot Position Adjustment ....................................	111
5.2.5 PF Adjustment .......................................................................................		112
5.2.6 PG Adjustment ......................................................................................		113
5.3 Banding Reduction System (BRS) Adjustment / Paper Feed Amount Profile (PFP)
Correction.........................................................................................................		115
5.3.1 Overview ...............................................................................................		115
5.3.2	Adjustment Procedure ...........................................................................	117

Chapter 6 Maintenance

6.1 Overview ..........................................................................................................		121
6.1.1	Cleaning.................................................................................................	121
6.1.2	Service Maintenance .............................................................................	121
6.1.3	Lubrication ............................................................................................	122

Chapter 7 Appendix

7.1 Exploded Diagram / Parts List .........................................................................

129

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C H A P T E R

1

PRODUCT DESCRIPTION

Confidential

Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50

Revision C

1.1 Features

Epson Stylus Photo R280/R285/R290 and Epson Artisan 50/Epson Stylus Photo T50/ T59/T60/P50 are single-function color ink-jet printers.

The main features are;

High speed & High quality

Maximum print resolution: 5760 (H) x 1440 (V) dpi

Newly developed F3 Mach Turbo II print head achieves higher print speed than ever.

Six independent dye-ink cartridges enables high-resolution photo printing.

CD and DVD label printing are supported.

Borderless printing on specified EPSON brand paper is available.

Control panel

Simple design with three buttons and three indicators (LED).

Dimensions and weight

Table 1-1. Dimensions and weight

	Model	Dimensions (W x D x H) mm*1		Weight*2
Epson Stylus Photo R280/		450 x 282 x 187		5.4 kg
	R285/R290
Epson Artisan 50/Epson Stylus		450 x 289 x 187		5.5 kg
Photo T50/T59/T60/P50
Note *1:	Paper support and stacker are closed. Rubber feet are included.
*2:	Without ink cartridges

Epson Artisan 50/

Epson Stylus Photo R280/R285/R290

Epson Stylus Photo T50/T59/T60/P50

Paper Support & Stacker are Closed

	Epson Stylus Photo R280/R285/R290	Epson Artisan 50/
		Epson Stylus Photo T50/T59/T60/P50

Paper Support & Stacker are Opened

Figure 1-1. External View

Chapter 1 Product Description

1.1 Features

9

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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50

Revision C

1.2	Printing Specifications
1.2.1	Basic Specifications
		Table 1-2. Printer Specifications
	Item				Specifications
Print method			On-demand ink jet
Nozzle configuration			Black:	90 nozzles
			Color:	90 nozzles x 5
				(Cyan, Magenta, Yellow, Light Cyan, Light Magenta)
Print direction			Bi-directional minimum distance printing, unidirectional printing
Print resolution			Horizontal x Vertical (dpi)
			• 360 x 180		• 720 x 540
			• 360 x 360		• 720 x 720
			• 720 x 360		• 5760 x 1440
Control code			• ESC/P Raster command
			• EPSON Remote command
Internal font			Character code:Alphanumeric with expanded graphics (PC437)
			ASCII, 20H to 7FH only
			Font: EPSON original font
			Alphanumeric font: Courier
Paper feed method			Friction feed, using one ASF (Auto Sheet Feeder)
Paper path			Top feed, front out
Paper feed rates			110 msec (at 25.4 mm feed)
PF interval			Programmable in 0.01764 mm (1/1440 inch) steps

1.2.2 Ink Cartridge

The product numbers of the EPSON ink cartridges for this printer are shown below.

Table 1-3. Product No. of Ink Cartridges

	Color	EAI		Euro	Asia, CISMEA, Latin
	Black	T0771	(S)	T0801	T0811	(S)
		T0781	(SS)		T0821	(SS)
	Cyan	T0772	(S)	T0802	T0812	(S)
		T0782	(SS)		T0822	(SS)
	Magenta	T0773	(S)	T0803	T0813	(S)
		T0783	(SS)		T0823	(SS)
	Yellow	T0774	(S)	T0804	T0814	(S)
		T0784	(SS)		T0824	(SS)
	Light Cyan	T0775	(S)	T0805	T0815	(S)
		T0785	(SS)		T0825	(SS)
	Light Magenta	T0776	(S)	T0806	T0816	(S)
		T0786	(SS)		T0826	(SS)

Shelf life

Two years from production date (if unopened), six months after opening package.

Storage Temperature

Table 1-4. Storage Temperature

	Situation	Storage Temperature	Limit
	When stored in individual boxes	-20 oC to 40 oC
		(-4oF to 104oF)
			1 month max. at 40 oC (104oF)
	When installed in main unit	-20 oC to 40 oC
		(-4oF to 104oF)

Dimension

12.7 mm (W) x 68 mm (D) x 47 mm (H)

CAUTION The ink cartridge cannot be refilled.

Do not use expired ink cartridges.

The ink in the ink cartridge freezes at -16 °C (3.2 oF). It takes

about three hours under 25 °C (77oF) until the ink thaws and becomes usable.

Chapter 1 Product Description

1.2 Printing Specifications

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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50

Revision C

1.2.3 Print Mode

Table 1-5. Print Mode (Color)

		Print	Resolution	Dot Size		Micro	Border
	Media		(H x V)		Bi-d
		Mode		(cps)*1		Weave	-less
			dpi
	• Plain paper	Draft	360x180	Eco	ON	OFF	N/A
	• Premium Bright White Paper			(400cps)
	(EAI)	Normal	360x360	MC2-1	ON	OFF	N/A
	• Bright White Inkjet Paper
				(360cps)
	(others)
		Photo		MC1-1
	• Premium Ink Jet Plain Paper		720x720		ON	ON	N/A
		Fine		(240cps)
	(others)
	• Ultra Premium Photo Paper	Photo*2	720x720	MC1-2	ON	ON	OK
	Glossy (EAI)		(1.5 pass)	(240cps)
	• Ultra Glossy Photo Paper	Photo*2	720x720	MC2-2	ON	ON	OK
	(others)
			(2.0 pass)	(280cps)
		Super	5760x1440	MC1-5	ON	ON	OK
		Photo		(200cps)
	• Premium Photo Paper Glossy	Fine	720x360	MC1-1	ON	ON	OK
	(EAI)
				(240cps)
	• Premium Glossy Photo Paper
	(others)	Photo*2	720x720	MC1-2	ON	ON	OK
	• Premium Photo Paper Semi-
			(1.5 pass)	(240cps)
	gloss (EAI)
	• Premium Semigloss Photo		720x720	MC2-2
	Paper (others)	Photo*2			ON	ON	OK
			(2.0 pass)	(280cps)
	• Ultra Premium Photo Paper
	Luster (EAI)	Super		MC1-5
	• Photo Paper Glossy (EAI)		5760x1440		ON	ON	OK
		Photo		(200cps)
	• Glossy Photo Paper (others)
	• Premium Presentation Paper
	Matte (EAI)	Photo*2	720x720	MC2-2	ON	ON	OK
	• Matte Paper Heavy-weight		(2.0 pass)	(280cps)
	(others)
	• Premium Presentation Paper
	Matte Double-sided (EAI)	Super	5760x1440	MC1-5	ON	ON	OK
	• Double-Sided Matte paper	Photo		(200cps)
	(others)

Table 1-5. Print Mode (Color)

	Media	Print	Resolution	Dot Size	Bi-d	Micro	Border
			(H x V)
		Mode		(cps)*1		Weave	-less
			dpi
	• Presentation Paper Matte (EAI)		720x720	MC2-2
	• Photo Quality Inkjet Paper	Photo*2			ON	ON	N/A
			(2.0 pass)	(280cps)
	(others)
	• Envelopes	Normal	360x360	MC2-1	OFF	OFF	N/A
				(360cps)
		Photo	720x720	MC1-1	OFF	ON	N/A
		Fine		(240cps)
	• Iron-On Cool Peal Transfer	Normal*3	360x360	MC2-1	ON	OFF	N/A
	(EAI)			(360cps)
	• Ion-On Cool Peal Transfer
		Photo	720x720	MC1-1	OFF	ON	N/A
	Paper (Other)
		Fine		(240cps)
	• Photo Stickers	Photo*2	720x720	MC2-2	ON	ON	N/A
			(2.0 pass)	(280cps)
	• CD/DVD	Super	5760x1440	MC1-5	ON	ON	N/A
		Photo		(200cps)
	• CD/DVD Premium Surface	Super	5760x1440	MC1-5	ON	ON	N/A
		Photo		(200cps)

Note *1: cps = character per second

*2: In Photo mode, either of 1.5 or 2.0 pass is selected depending on the paper size. 1.5 pass supported size: 4”x6”

2.0 pass supported size: 5”x7”, 8” x 10”, Letter, A4

*3: Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 only

Chapter 1 Product Description

1.2 Printing Specifications

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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50

Revision C

Table 1-6. Print Mode (Monochrome)

		Print	Resolution	Dot Size		Micro	Border
	Media		(H x V)		Bi-d
		Mode		(cps)*1		Weave	-less
			dpi
	• Plain paper	Draft	360x180	Eco	ON	OFF	N/A
	• Premium Bright White Paper			(400cps)
	(EAI)	Normal	360x360	MC2-1	ON	OFF	N/A
	• Bright White Inkjet Paper
				(360cps)
	(others)
		Photo		MC1-1
	• Premium Ink Jet Plain Paper		720x720		ON	ON	N/A
		Fine		(240cps)
	(others)
	• Ultra Premium Photo Paper	Photo*2	720x720	MC1-2	ON	ON	OK
	Glossy (EAI)		(1.5 pass)	(240cps)
	• Ultra Glossy Photo Paper	Photo*2	720x720	MC2-2	ON	ON	OK
	(others)
			(2.0 pass)	(280cps)
		Super	5760x1440	MC1-5	ON	ON	OK
		Photo		(200cps)
	• Premium Photo Paper Glossy	Fine	720x360	MC1-1	ON	ON	OK
	(EAI)
				(240cps)
	• Premium Glossy Photo Paper
	(others)	Photo*2	720x720	MC1-2	ON	ON	OK
	• Premium Photo Paper Semi-
			(1.5 pass)	(240cps)
	gloss (EAI)
	• Premium Semigloss Photo		720x720	MC2-2
	Paper (others)	Photo*2			ON	ON	OK
			(2.0 pass)	(280cps)
	• Ultra Premium Photo Paper
	Luster (EAI)	Super		MC1-5
	• Photo Paper Glossy (EAI)		5760x1440		ON	ON	OK
		Photo		(200cps)
	• Glossy Photo Paper (others)
	• Premium Presentation Paper
	Matte (EAI)	Photo*2	720x720	MC2-2	ON	ON	OK
	• Matte Paper Heavy-weight		(2.0 pass)	(280cps)
	(others)
	• Premium Presentation Paper
	Matte Double-sided (EAI)	Super	5760x1440	MC1-5	ON	ON	OK
	• Double-Sided Matte paper	Photo		(200cps)
	(others)

Table 1-6. Print Mode (Monochrome)

	Media	Print	Resolution	Dot Size	Bi-d	Micro	Border
			(H x V)
		Mode		(cps)*1		Weave	-less
			dpi
	• Presentation Paper Matte (EAI)		720x720	MC2-2
	• Photo Quality Inkjet Paper	Photo*2			ON	ON	N/A
			(2.0 pass)	(280cps)
	(others)
	• Envelopes	Normal	360x360	MC2-1	OFF	OFF	N/A
				(360cps)
		Photo	720x720	MC1-1	OFF	ON	N/A
		Fine		(240cps)
	• Iron-On Cool Peal Transfer	Normal*3	360x360	MC2-1	ON	OFF	N/A
	(EAI)			(360cps)
	• Ion-On Cool Peal Transfer
		Photo	720x720	MC1-1	OFF	ON	N/A
	Paper (Other)
		Fine		(240cps)
	• Photo Stickers	Photo*2	720x720	MC2-2	ON	ON	N/A
			(2.0 pass)	(280cps)
	• CD/DVD	Super	5760x1440	MC1-5	ON	ON	N/A
		Photo		(200cps)
	• CD/DVD Premium Surface	Super	5760x1440	MC1-5	ON	ON	N/A
		Photo		(200cps)

Note *1: cps = character per second

*2: In Photo mode, either of 1.5 or 2.0 pass is selected depending on the paper size. 1.5 pass supported size: 4”x6”

2.0 pass supported size: 5”x7”, 8” x 10”, Letter, A4

*3: Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 only

Chapter 1 Product Description

1.2 Printing Specifications

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1.2.4 Supported Paper

The table below lists the paper type and sizes supported by the printer. The supported paper type and sizes vary depending on destinations (between EAI, EUR, and Asia)

.

Table 1-7. Supported Paper

Paper Name

Paper Size

Thickness

Weight

EAI

EUR

Asia

mm

g/m2

lb.

P*1

B*1

P*1

B*1

P*1

B*1

Legal

215.9 x 355.6 mm (8.5”x14”)

Y

-

Y

-

Y

-

Letter

215.9 x 279.4 mm (8.5”x11”)

Y

-

Y

-

Y

-

A4

210 x 297 mm (8.3”x11.7”)

Y

-

Y

-

Y

-

B5

182 x 257 mm (7.2”x10.1”)

-

-

Y

-

Y

-

Plain paper

0.08-0.11

64-90

17-24

A5

148 x 210 mm (5.8”x8.3”)

-

-

Y

-

Y

-

Half Letter

139.7 x 215.9 mm (5.5”x8.5”)

Y

-

-

-

-

-

A6

105 x 148 mm (4.1”x5.8”)

Y

-

Y

-

Y

-

User Defined

89 x 127329 x 1117.6 mm

Y

-

Y

-

Y

-

(3.56”x 5.08” - 13.16”x44.7”)

Premium Inkjet Plain Paper

A4

210 x 297 mm (8.3”x11.7”)

0.11

80

21

-

-

Y

-

Y

-

Premium Bright White Paper (EAI)

Letter

215.9 x 279.4 mm (8.5”x11”)

0.11

90

24

Y

-

-

-

-

-

Bright White Inkjet Paper (others)

A4

210 x 297 mm (8.3”x11.7”)

0.13

92.5

25

-

-

Y

-

Y

-

Letter

215.9 x 279.4 mm (8.5”x11”)

Y

Y

-

-

-

-

Ultra Premium Photo Paper Glossy (EAI)

A4

210 x 297 mm (8.3”x11.7”)

-

-

Y

Y

Y*2

Y*2

8” x 10”

203.2 x 254 mm

0.30

290

77

Y

Y

-

-

-

-

Ultra Glossy Photo Paper (others)

5” x 7”

127 x 178 mm

Y

Y

Y

Y

-

-

4” x 6”

101.6 x 152.4 mm

Y

Y

Y

Y

Y*2

Y*2

Letter

215.9 x 279.4 mm (8.5”x11”)

Y

Y

-

-

-

-

A4

210 x 297 mm (8.3”x11.7”)

Y*3

Y*3

Y

Y

Y

Y

Premium Photo Paper Glossy (EAI)

8” x 10”

203.2 x 254 mm

0.27

255

68

Y

Y

-

-

-

-

Premium Glossy Photo Paper (others)

5” x 7”

127 x 178 mm

Y

Y

Y

Y

Y

Y

4” x 6”

101.6 x 152.4 mm

Y

Y

Y

Y

Y

Y

16:9 wide

102 x 181 mm (4”x7.11”)

Y*4

Y*4

Y

Y*4

-

-

Letter

215.9 x 279.4 mm (8.5”x11”)

Y

Y

-

-

-

-

Photo Paper Glossy (EAI)

A4

210 x 297 mm (8.3”x11.7”)

0.25

258

68

Y

Y

Y

Y

Y

Y

Glossy Photo Paper (others)

5” x 7”

127 x 178 mm

-

-

Y

Y

-

-

4” x 6”

101.6 x 152.4 mm

Y

Y

Y

Y

Y

Y

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		Table 1-7. Supported Paper
Paper Name		Paper Size	Thickness	Weight			EAI		EUR		Asia
			mm	g/m2	lb.	P*1		B*1	P*1	B*1	P*1	B*1
	A4	210 x 297 mm (8.3”x11.7”)				-		-	Y	Y	Y	Y
Photo Paper (others)*4			0.24	190	51
	5” x 7”	127 x 178 mm				-		-	Y	Y
	4” x 6”	101.6 x 152.4 mm				-		-	Y	Y	Y	Y
Premium Photo Paper Semi-gloss (EAI)	Letter	215.9 x 279.4 mm (8.5”x11”)				Y		Y	-	-	-	-
	A4	210 x 297 mm (8.3”x11.7”)	0.27	250	66	-		-	Y	Y	Y	Y
Premium Semigloss Photo Paper (others)
	4” x 6”	101.6 x 152.4 mm				Y		Y	Y	Y	Y	Y
Ultra Premium Photo Paper Luster	Letter	215.9 x 279.4 mm (8.5”x11”)	0.27	250	66	Y		Y	-	-	-	-
Premium Presentation Paper Matte (EAI)	Letter	215.9 x 279.4 mm (8.5”x11”)				Y		Y	-	-	-	-
	A4	210 x 297 mm (8.3”x11.7”)	0.23	167	44	-		-	Y	Y	Y	Y
Matte Paper Heavy-weight (others)
	8” x 10”	203.2 x 254 mm				Y		Y	-	-	-	-
Premium Presentation Paper Matte Double-sided	Letter	215.9 x 279.4 mm (8.5”x11”)				Y		-	-	-	-	-
(EAI)			0.22	185	49
	A4	210 x 297 mm (8.3”x11.7”)				-		-	Y	-	Y	-
Double-sided Matte Paper (others)
Presentation Paper Matte (EAI)	Letter	215.9 x 279.4 mm (8.5”x11”)	0.12	102	27	Y		-	-	-	-	-
Photo Quality Inkjet Paper (others)	A4	210 x 297 mm (8.3”x11.7”)				Y		-	Y	-	Y	-
	#10	104.8 x 241.3 mm (4.125”x9.5”)				Y		-	Y	-	Y	-
Envelopes			-	75-90	20-24
	#DL	110 x 220 mm				-		-	Y	-	Y	-
	#C6	114 x 162 mm				-		-	Y	-	Y	-
Iron-On Cool Peal Transfer (EAI)	Letter	215.9 x 279.4 mm (8.5”x11”)	0.14	130	35	Y		-	-	-	-	-
Iron-On Cool Peal Transfer Paper (Other)	A4	210 x 297 mm (8.3”x11.7”)				-		-	Y	-	Y	-
Photo Stickers 16	A6	105 x 148 mm (4.1”x5.8”)	0.19		-	-		-	-	-	Y	-
Photo Stickers 4	A6	105 x 148 mm (4.1”x5.8”)	0.19		-	-		-	-	-	Y*3	-
CD/DVD	ø12cm	ø12cm	-		-	Y		-	Y	-	Y	-
CD/DVD Premium Surface	ø8cm	ø8cm	-		-	Y		-	Y	-	Y	-

Note *1: “Y” in the “P” column stands for “the paper type/size is Supported”. “Y” in the “B” column stands for “Borderless printing is available”. *2: Singapore, Taiwan, Australia only

*3: Epson Stylus Photo R280/R285/R290 only

*4: Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 only

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CAUTION Make sure the paper is not wrinkled, fluffed, torn, or folded.

The curve of paper must be 5 mm or below.

When printing on an envelope, be sure the flap is folded neatly.

Do not use the adhesive envelopes.

Do not use double envelopes and cellophane window envelopes.

	1.2.5	Printing Area
	The printing area for this printer is shown below.
			Table 1-8. Printing Area (Margins)
	Print Mode		Paper Size		Margin
				Left	Right	Top	Bottom
	Standard print		Any size	3 mm	3 mm	3 mm	3 mm
			Envelope	5 mm	5 mm	3 mm	20 mm
	Borderless		A4/Letter to			2.96 mm*	4.02 mm*
	print		5” x 7”	2.54 mm*	2.54 mm*
			4” x 6”			1.34 mm*	2.54 mm*
			Card	1.83mm*	1.83mm*	2.54mm*	3.53mm*
	Note * :	The margins for Borderless print are margins that bleed off the edges of paper.

Cut Sheet (Standard)		Cut Sheet (Borderless)			Envelope
LM	RM	LM	RM	LM	RM
	TM		TM		TM
					Print Area
	Print Area		Print Area
	BM				BM

Paper

Size

Paper Size

BM

Paper Feed Direction

Figure 1-2. Printing Area

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1.3 Interface

The printer has a USB interface of the following specification.

Standards

“Universal Serial Bus Specifications Revision 2.0”

“Universal Serial Bus Device Class Definition for Printing Devices Version 1.1”

Transfer rate:		480 Mbps (High Speed Device)
	Data format:	NRZI
	Compatible connector:	USB Series B

Recommended cable length: 2 [m] or less

Device ID

Table 1-9. Epson Stylus Photo R280/R285/R290

	Product	When IEEE 1284.4 is Enabled	When IEEE 1284.4 is Disabled
	Name
		MFG:EPSON;
		CMD:ESCPL2,BDC,D4,D4PX;	MFG:EPSON;
	Epson Stylus	MDL:Stylus[SP]Photo[SP]R280;	CMD:ESCPL2,BDC;
	Photo R280	CLS:PRINTER;	MDL:Stylus[SP]Photo[SP]R280;
		DES:EPSON[SP]Stylus[SP]Photo	CLS:PRINTER;
		[SP]R280;
		MFG:EPSON;
		CMD:ESCPL2,BDC,D4,D4PX;	MFG:EPSON;
	Epson Stylus	MDL:Stylus[SP]Photo[SP]R285;	CMD:ESCPL2,BDC;
	Photo R285	CLS:PRINTER;	MDL:Stylus[SP]Photo[SP]R285;
		DES:EPSON[SP]Stylus[SP]Photo	CLS:PRINTER;
		[SP]R285;
		MFG:EPSON;
		CMD:ESCPL2,BDC,D4,D4PX;	MFG:EPSON;
	Epson Stylus	MDL:Stylus[SP]Photo[SP]R290;	CMD:ESCPL2,BDC;
	Photo R290	CLS:PRINTER;	MDL:Stylus[SP]Photo[SP]R290;
		DES:EPSON[SP]Stylus[SP]Photo	CLS:PRINTER;
		[SP]R290;

Table 1-10. Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50

	Product	When IEEE 1284.4 is Enabled	When IEEE 1284.4 is Disabled
	Name
		@EJL<SP>ID<CR><LF>	@EJL<SP>ID<CR><LF>
	Epson Artisan 50/	MFG:EPSON;	MFG:EPSON;
		CMD:ESCPL2,BDC,D4,D4PX;	CMD:ESCPL2,BDC;
	Epson Stylus
		MDL:Model Name;	MDL:Model Name;
	Photo T50/T59/
		CLS:PRINTER;	CLS:PRINTER;
	T60/P50
		DES:EPSON<SP>Model Name;	DES:EPSON<SP>Model Name;
		CID:EpsonStd2;	CID:EpsonStd2;

Note : The “Model Name” is replaced as shown in the following table.

Destination	Model Name
North America	Artisan 50
West Euro	Epson Stylus Photo P50
Asia/Pacific/South America/CISMEA	Epson Stylus Photo T50
Singapore/Korea	Epson Stylus Photo T60

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	1.4	General Specifications
	1.4.1	Electrical Specifications
	Primary power input
			Table 1-11. Primary Power Specifications
			Item		100-120V model	220-240V model
	Rated power supply voltage				100 to 120 VAC	220 to 240 VAC
	Input voltage range				90 to 132 VAC	198 to 264 VAC
	Rated current				0.6 A (max. 1.0 A)	0.3 A (max. 0.5 A)
	Rated frequency				50 to 60 Hz
	Input frequency range				49.5 to 60.5 Hz
	Insulation resistance				3000 V (for one minute)
	Energy conservation				International Energy Star Program
					compliant
				Epson Stylus
				Photo R280/	Approx. 12 W
			Printing	R285/R290
	Power		(ISO10561 Letter	Epson Artisan 50/
			Pattern)
	consumpt			Epson Stylus	Approx. 13 W
	ion			Photo T50/T59/
				T60/P50
			Sleep mode		Approx. 1.0 W	Approx. 1.2 W
			Standby mode (power-off)		Approx. 0.2 W	Approx. 0.3 W

Note : If the printer is not operated for more than three minutes, the printer shifts into the standby mode and reduces the current to the motor to conserve power.

1.4.2 Environmental Conditions

Table 1-12. Environmental Conditions

	Condition	Temperature*1	Humidity*1,2	Shock	Vibration
	Operating	10 to 35°C	20 to 80%	1G	0.15G,
		(50 to 95°F)		(1 msec or less)	10 to 55Hz
	Storage*3	-20 to 40°C*4	5 to 85%	2G	0.50G,
	(unpacked)	(-4°F to 104°F)		(2 msec or less)	10 to 55Hz

Note *1: The combined Temperature and Humidity conditions must be within the blue-shaded range in Fig.1-3.

*2: No condensation

*3: Non-operating with unpacked.

*4: Must be less than 1 month under 40°C.

90
80
70
60
Humidity (%)
50
40
30
20
		27/80
10/50	20/68	30/86	35/95	40/104

Temperature (°C/°F)

Figure 1-3. Temperature/Humidity Range

CAUTION	When returning the repaired printer to the customer, make sure
	the Printhead is covered with the cap and the ink cartridge is
	installed.

If the Printhead is not covered with the cap when the printer is off, turn on the printer with the ink cartridge installed, make sure the Printhead is covered with the cap, and then turn the printer off.

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1.4.3 Durability

Total print life: Black 16,000 pages (A4, 3.5% duty), Color 10,000 pages (A4, 5% duty), or five years which ever comes first

Printhead:	Six billions shots (per nozzle) or five years which ever comes
	first

1.4.4 Acoustic Noise

Epson Stylus Photo R280/R285/R290:

36 dB

Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50: 34.7 dB or less (when printing from PC, on Premium Glossy Photo Paper, in highest quality)

1.4.5 Safety Approvals (Safety standards/EMI)

USA	UL60950-1
	FCC Part15 Subpart B Class B
Canada	CAN/CSA-C22.2 No.60950-1
	CAN/CSA-CEI/IEC CISPR 22 Class B
Mexico	NOM-019-SCFI-1998
Taiwan	CNS13438 Class B
	CNS14336
EU	EN60950-1
	EN55022 Class B
	EN61000-3-2, EN61000-3-3
	EN55024
Germany	EN60950-1
Russia	GOST-R (IEC60950-1, CISPR 22)
Singapore	IEC60950-1
Korea	K60950-1
	KN22 Class B
	KN61000-4-2/-3/-4/-5/-6/-11
China	GB4943*
	GB9254 Class B, GB17625.1*
Argentina	IEC60950-1
Australia	AS/NZS CISPR22 Class B
Hong Kong	IEC60950-1

NOTE * : Epson Stylus Photo R280/R285/R290 only

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1.5 Operation Buttons & Indicators (LEDs)	1.5.3 Operation Buttons & LEDs Functions
	Detailed information on the buttons and LEDs functions are listed below.

1.5.1 Operation Buttons

The printer has the following three operation buttons.

	Table 1-13. Operation Buttons
Button	Function
Power	Turns the power ON/OFF.
Ink	Runs a sequence of ink cartridge replacement or cleaning.
Paper	Feeds or ejects paper.

1.5.2 Indicators (LEDs)

Three indicators (LEDs) are provided to indicate settings or printer status.

	Table 1-14. Indicators (LEDs)
LED	Function
	Lights at power-on.
Power LED (green)	Flashes during some sequence is in progress.
	Flashes at high speed during power-OFF sequence.
Ink LED (orange)*1	Lights or flashes when an ink-related error occurs.*2
Paper LED (orange)*1	Lights or flashes when an paperor CD-R-related error occurs.*2

Note *1:The Ink LED and Paper LED stay OFF when printing from PC.

*2:See Table 1-17 “Indicators (LEDs) Function” for the LED status at error occurrence.

Power LED Ink LED		Paper LED
		Power Button Ink Button	Paper Button

Power LED

Ink LED

Paper LED

Power Button Ink

Button Paper Button

Epson Stylus Photo

Epson Artisan 50/Epson Stylus

R280/R285/R290

Photo T50/T59/T60/P50

Figure 1-4. Buttons & LEDs

Table 1-15. Operation Button Functions (During Normal Operation)

	Button	Function
	Power	• Turns the power ON/OFF
		• Runs a sequence of ink cartridge replacement. The carriage
		moves to set the ink cartridge to the position for
		replacement.
		• Moves the carriage to set the ink cartridge to the ink check
		position when ink level low, ink out, or no ink cartridge
	Ink	error has occurred.
		• When an ink cartridge has been set in the ink check
		position, moves the carriage to set the cartridge to the
		position for replacement, or to set another cartridge to the
		ink check position.
		• When an ink cartridge has been set in the ink replacement
		position, moves the carriage to the home position.
		• Feeds or ejects paper.
		• Recovers from a multi-feed error and feeds paper to restart
		the print job.
	Paper	• Feeds paper when paper is loaded after a no-paper error
		occurs.
		• Ejects a jammed paper when a paper jam error occurs.
		• Cancels the print job during printing.
	Ink	• Runs a head cleaning.
	(when held for three seconds	• Runs a sequence of ink cartridge replacement when ink
	or longer)	level low, ink out, or no ink cartridge error has occurred.
	Power + Paper *1	• Prints a nozzle check pattern*3.
	(combination)
	Power + Ink *2	• Forcefully turns the power OFF.
	(combination)

Note 1: First press the Paper button and then Power button. The printer will turn On and print the nozzle check pattern.

2:First press the Power button and then Ink button. Hold them for seven seconds.

3:The nozzle check pattern printed by the printer is shown in Figure 1-5.

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Table 1-16. Operation Button Functions (During CD-R Printing)

		Button	CD-R Tray			Function
			In	• Recovers form a CD-R tray error.
	Paper			• Cancels the print job during printing.
			Out	• Recovers form a CD-R jam error.
	Ink		In	• Does not function.
	(including when held		Out	• Same as during normal operation.
	for three seconds or longer)
	Yellow	Black	Light Cyan	Light Magenta		Magenta	Cyan
	1	1	1	1	1	1
	11	10 11	10 11	10 11	1011	1011	10
	21	20 21	20 21	20 21	2021	2021	20
	31	30 31	30 31	30 31	3031	3031	30
	41	40 41	40 41	40 41	4041	4041	40
	51	50 51	50 51	50 51	5051	5051	50
	61	60 61	60 61	60 61	6061	6061	60
	71	70 71	70 71	70 71	7071	7071	70
	81	80 81	80 81	80 81	8081	8081	80
		90	90	90	90	90	90
			720 dpi MC1-1			0.282 mm (1/90 inch)
			32 dots

Note : The numbers shown in the figure are nozzle numbers. The numbers and color names are not printed on an actual nozzle check pattern.

Figure 1-5. Nozzle Check Pattern

Table 1-17. Indicators (LEDs) Function

Printer Status		Indicators (LEDs)			Pri-
	Power		Ink	Paper	ority*1
Power OFF	Flashes at		OFF	OFF	1
	high speed
Fatal error	OFF		Flashes at	Flashes at	2
			high speed	high speed
Maintenance request	OFF		Flashes	Flashes	3
			alternately 2	alternately 1
CD-R guide error	--		Flashes at	Flashes 2	4
			high speed
Paper (CD-R) jam	--		--	Flashes	5
Multi-feed error	--		--	ON	6
No paper error	--		--	ON	6
CD-R Tray error	--		--	ON	6
Cover open error	--		Flashes 2	Flashes 2	6
Ink cartridge replacement is in	Flashes		--	--	7
progress
Ink sequence is in progress	Flashes		--	--	8
CSIC error	--		ON	--	9
No ink cartridge error or ink-out error	--		ON	--	9
During feeding or ejecting paper	Flashes		--	--	10
Data processing	Flashes		--	--	10
Ink level low	--		Flashes	--	11
Power ON	ON		--	--	12
Reset request*2	ON		ON	ON	-

Note :	--:	No change
	Flash:	Repeats turning On and Off every 1.25 seconds.
	Flash 2:	[Epson Stylus Photo R280/R285/R290]

Repeats On for 0.5 seconds, Off for 0.5 seconds, On for 0.5 seconds, and Off for 1.0 second.

[Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50] Repeats On for 1.25 seconds, Off for 1.25 seconds,

On for 0.5 seconds, and Off for 1.0 second. Flash at high speed: Repeats turning On and Off every 0.5 seconds. Flashes alternately 1: same as the “Flash”

Flashes alternately 2: Repeats turning Off and On every 1.25 seconds.

Note *1: When two or more errors occur at the same time, the one with higher priority will be indicated.

*2: The all LEDs light for 0.2 seconds when a reset request is received.

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1.5.4 Errors & Remedies

Table 1-18. Errors & Remedies

Error		Error	Remedies
Fatal error		A mechanical error has occurred.	Turn the power Off and back it On.
Maintenance		Waste ink pads need to be	Replace the waste ink pads and
request		replaced.	reset the counter.
		• The CD-R guide (stacker)	Attach the CD-R guide (stacker) to
		position does not match with	the proper position.
CD-R guide error		the print job.
		• The CD-R guide (stacker) is in
		the CD-R printing position at
		power-ON.
		A paper jam has occurred.	<When printing on paper>
			Remove the jammed paper and
Paper jam			press the Paper button.*1
			<When printing on CD-R>
			Remove the jammed CD-R tray
			and press the Paper button.
No paper		Failed to feed paper.	Load paper correctly and press the
			Paper button.*1
Multi-feed		Multiple sheets of paper were fed	Press the Paper button to eject the
		at the same time.	multiple sheets.*1
CD-R Tray error		A CD-R tray were not detected.	Insert the CD-R tray and press the
			Paper button.
Ink-out		The cartridge has run out of ink.	Replace the ink cartridge.*2
No ink cartridge		Ink cartridge(s) was not detected.	Replace the ink cartridge.*2
Wrong ink
cartridge
Note :	For more information on the remedies, see 3.2 Error Indications and Fault
	Occurrence Causes.

Note *1: When the CD-R guide (stacker) is attached to the upper position (CD-R print position), attach the guide to the lower position and press the Paper button.

*2: When the CD-R tray has been inserted, remove the CD-R tray and press the Ink button.

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C H A P T E R

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OPERATING PRINCIPLES

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Revision C

2.1 Overview

This chapter describes the operating principles of the printer mechanism and electric circuit boards of Stylus Photo R280/R285/R290 and Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50.

2.1.1 Printer Mechanism

The main components of the printer mechanism are shown in the table below.

		Table 2-1. Printer Mechanism Main Components
	Component	Function
	CR Unit	Moves along the CR shaft to print on paper being powered by the CR motor.
		The unit includes Printhead, PW sensor, and CR encoder sensor.
		Moves the carriage upward/downward to adjust the platen gap being powered by
	APG Unit	the PF motor. There are 4 preset levels of platen gap and the unit moves the
		carriage to one of the levels according to the current carriage position detected by
		the APG sensor.
	PF Unit	Rotates the PF roller shaft to feed paper being powered by the PF motor.
	ASF Unit	Being powered by the PF motor, feeds paper loaded on the ASF into the printer
		mechanism.
		Being powered by the PF motor, ejects paper or the CDR tray.
	EJ Unit	The EJ frame moves corresponding to the stacker position so that the frame
		matches with the paper size.
		Located on the right side of the printer mechanism. Covers the printhead with the
	Ink System	cap holder when the printhead is not used, and draws waste ink out of the
		printhead. The waste ink is sent to the Waste Ink Tray through the waste ink tube.

The main control boards are shown in the table below.

		Table 2-2. Main Control Boards
	Board	Function
	Main Board	Located on top of the printer mechanism and controls all over the
		printer operations.
	Power Supply Board	Located on the Lower Housing and generates required voltages for the
	(P/S ASSY)	printer using the power supplied from the AC power line.
	Panel Board	Located inside the Panel Unit and controls the operation panel.

Cover Open	PF Encoder Sensor	APG Sensor
Sensor
CDR Tray		PF Motor
Sensor
		PF Roller Shaft

PW Sensor

Printhead

CR Encoder

Sensor

CR Unit

LD Roller

EJ Frame	PE Sensor
EJ Roller Shaft
CR Shaft

	CDR Guide	ASF Unit
	Sensor
	CR Lock Lever
	Cap ASSY	CR Motor
	Ink System
	APG Unit

Figure 2-1. Printer Mechanism Diagram

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2.1 Overview

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	2.1.2 Motors & Sensors			APG Sensor
		Table 2-3. List of Motors & Sensors
	No.	Motor/Sensor Name	Function	PF Motor
	1	Printhead	F3-MACH Turbo2 head (6 colors x 90 nozzles)	PF Encoder Sensor
			Type: DC motor
			Drive voltage: 42V DC ± 5% (voltage applied to the driver)	CR Encoder Sensor
	2	CR motor	Coil resistance: 22.7Ω ± 10%
			Inductance: 17.5mH ± 25%
			Drive method: PWM constant-current chopping
			Type: DC motor	CR Motor
			Drive voltage: 42V DC ± 5% (voltage applied to the driver)
				PE Sensor
	3	PF motor	Coil resistance: 21.2Ω ± 10%
			Inductance: 17.2mH (1 kHz)	PW Sensor
			Drive method: PWM
				CDR Tray Sensor
	4	PE sensor	Detecting items: paper end, leading edge of paper
			Type: Transmissive photo interrupter
				Cover Open Sensor
	5	CR Contact module	Ink cartridge detection (CSIC)
				CR Contact Module
	6	CR Encoder sensor	Type: Transmissive photo interrupter
			Resolution: 180 pulse/inch
	7	PF Encoder sensor	Type: Transmissive photo interrupter
			Resolution: 180 pulse/inch	CDR Guide Sensor
			Detecting items:	Figure 2-2. Motors & Sensors in the Printer Mechanism
			• Left/right edges of paper (before/during printing)
	8	PW sensor	• Top edge of paper (before printing)
			• Bottom edge of paper (during printing)
			• Left/right/top/bottom of CDR (before printing)
			Type: Reflective photo interrupter
	9	APG sensor	Detecting items: APG position
			Type: Transmissive photo interrupter
	10	CDR Guide sensor	Detecting items: Up/Down status of the CDR Guide
			Type: Mechanical contact
	11	CDR Tray sensor	Detecting items: Presence of CDR tray
			Type: Mechanical contact
	12	Cover Open sensor	Detecting items: Open/Close status of the Printer Cover
			Type: Mechanical contact

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2.1 Overview

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2.2 Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP)

Overview

In order to ensure high print quality and high print speed, this product incorporates the Banding Reduction System (BRS) and Paper Feed Profile (PFP) Correction system. The overview of them is described in the table below.

Table 2-4. Overview of BRS and PFP

		Summary	Target Print Mode			Remarks
			Paper Type	Paper Size	Resolutions (dpi)
		Conventional models perform overlapping printing (2-path or 4-
		path print) to reduce banding problem. Printers that incorporate the	Ultra Glossy Photo Paper
		Banding Reducing System do not perform the overlapping printing.
			Premium Glossy Photo Paper	4 x 6 inch
	BRS	They carry out 1-path printing correcting ink drop amount for each			720 x 720	---
			Glossy Photo Paper	(102 x 152 mm)
		raster mode in order to avoid making a gap between each path
			Premium Semigloss Photo Paper
		(printed line). This enables to achieve both high print quality (less
		banding) and high print speed.
		In the conventional method to improve paper feed accuracy, the
		adjustment value is calculated based on a value obtained at a			720 x 720	With BRS, Borderless print
		certain point of paper. Therefore, correcting the total paper feed
			Ultra Glossy Photo Paper
		amount (from when paper is fed and to when finishing printing)
			Premium Glossy Photo Paper	4 x 6 inch
	PFP	was impossible. The Paper Feed Amount Profile Correction offers
			Glossy Photo Paper	(102 x 152 mm)
		more precise control over the paper feeding. Paper feed errors are
			Premium Semigloss Photo Paper
		measured at various points and a correction value is calculated for				Without BRS,
					720 x 360
		each of the points. This enables to ensure print quality in the target				Borderless print
		print mode.

Adjustment/Correction method

Correction values of the BRS and the PFP are automatically calculated when a pattern printed by the printer is scanned by a specified scanner. The created correction values are stored into the serial flash ROM on the main board, and applied when printing in the target print mode.

ADJUSTMENT	For information on how to carry out the BRS and PFP,
REQUIRED	See Chapter 5 Adjustment.

Chapter 2 Operating Principles

2.2 Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP)

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2.3 Power-On Sequence

This section describes the power-on sequences.

Condition

Completing ink charge.

No CDR Tray and no paper on the paper path.

The stacker is not set on the CDR printing position.

The Printhead is capped with the Cap of the Ink System.

The Carriage is locked by the CR lock.

Table 2-5. Operation of the power-on sequence

Operation*1

Carriage/PF roller

PG*3

movement and position*2

1. Checking waste ink overflow

Any

1-1.Reads out the protection counter value to check

CR lock

CR

position

waste ink overflow

2. Avoiding deadlock sequence*4

2-1.The carriage moves to the 0-digit side slowly and

↓

confirms it touches the Right Frame.

2-2.The carriage slightly moves to the 80-digit side.

↓

2-3.The PF Motor rotates clockwise and releases the			CR lock					↓
CR lock.			is released
2-4.The carriage moves to the 0-digit side slowly and
confirms it touches the Right Frame.								↓

2-5.The carriage returns to its home position.

									↓
3. CDR Tray sensor
3-1.Checks with the CDR Tray sensor if the CDR									↓
Tray is not set.
3-2.The PF Motor rotates clockwise to eject the CDR
Tray.									↓

Table 2-5. Operation of the power-on sequence

Operation*1

Carriage/PF roller

PG*3

movement and position*2

4. Releasing the CR lock

Any

4-1.The PF Motor rotates clockwise and releases the

position

CR lock.

5. Seeking the home position

↓

5-1.The carriage slowly moves to the 80-digit side.

5-2.The carriage moves to the 0-digit side slowly and

confirms it touches the Right Frame.

↓

5-3.The carriage slowly moves to the CR lock set

position.

↓

5-4.The PF motor rotates clockwise and releases the

CR lock.

↓

5-5.The PF motor rotates counterclockwise and sets

the CR lock.

↓

5-6.The carriage moves to the 80-digit side slowly and

confirms it touches the CR lock.

↓

5-7.The carriage slowly moves to the 0-digit side to

the CR lock set position.

↓

5-8.The PF motor rotates clockwise and releases the

CR lock.

↓

5-9.The carriage moves to the 80-digit side slowly and

confirms it does not touch the CR lock.

↓

5-10.The carriage slowly moves to its original

position, and home position is fixed.

↓

Afterward, the carriage position is monitored

according to the signals from the CR Encoder.

6. Resetting APG

6-1.The carriage slowly moves to the Right Frame and

↓

stops there.

(Continue to the next page)

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Table 2-5. Operation of the power-on sequence

Operation*1

Carriage/PF roller

PG*3

movement and position*2

6-2.The PF Motor rotates clockwise while monitoring

Any

the PG sensor.

position

6-3.After the PG sensor switched from Off to On, the

PF Motor rotates clockwise by the specified step

↓

until it detects the PG-- (APG home position).

6-4. After detecting the APG home position, the carriage

slightly moves to the 80-digit side.

↓

6-5. After the PF Motor rotates counterclockwise by the

specified step, it rotates clockwise to confirm the PG

PG--

sensor is set to On-state.

6-6.The carriage slowly returns to its home position.

↓

7. Setting the APG to PG++
7-1.The carriage slowly moves to the Right Frame and									↓
stops there.

7-2.The PF Motor rotates clockwise and sets to PG++.

PG++

7-3.The carriage slowly returns to its home position.

↓

8. PF initialization

8-1.Checks if paper exists by the PE sensor*5 and the

↓

PF Motor rotates clockwise for one second.

9. PF Motor measurement

9-1.The PF motor rotates clockwise for four seconds,

↓

and performs a load measurement.*6

10.Low temperature operation sequence*7

10-1.The PF Motor rotates clockwise, and releases the

↓

CR lock.

10-2.The carriage moves back and forth between CR

lock and the 80-digit side for two times.

↓

Table 2-5. Operation of the power-on sequence

	Operation*1		Carriage/PF roller								PG*3
		movement and position*2
	11.Setting the APG to PG--
	11-1.The carriage slowly moves to the Right Frame										↓
	and stops there.
	11-2.The PF Motor rotates clockwise and sets to PG--.
											PG--

11-3.The carriage slowly returns to its home position.

↓

12.CR measurement and PW sensor initialization

12-1.The PF Motor rotates clockwise, and releases the

↓

CR lock.

12-2.The carriage slowly moves to the 80-digit side.

↓

12-3.The carriage performs a load measurement while

moving to the VHCheck position, and records the

↓

detected voltage of the PW sensor at the specified

three positions, then stops.

12-4.The carriage detects the voltage of the PW sensor

at the carriage stop position (the black area at the

↓

Paper Guide Front).

12-5.The carriage performs a load measurement while

moving to the 0-digit side, and stops.

↓

12-6.The carriage performs a load measurement while

moving to the VHCheck position, and records the

↓

detected voltage of the PW sensor at the specified

three positions, then stops.

12-7.The carriage detects the voltage of the PW sensor

at the carriage stop position (the black area at the

↓

Paper Guide Front).

12-8.The carriage performs a load measurement while

moving to the 0-digit side, and stops.

↓

(Continue to the next page)

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Table 2-5. Operation of the power-on sequence

	Operation*1		Carriage/PF roller								PG*3
		movement and position*2
	13.Detecting ink cartridge and initializing ink system*8
	13-1.The PF motor rotates clockwise and releases the										↓
	CR lock.
	13-2.The PF Motor rotates clockwise for one second,
	and resets the PF Roller.*9										↓

13-3.The carriage slowly moves to the 0-digit side.

PG--

13-4.After the carriage moves to the 80-digit side and

checks the ink end sensor, detects the ink

↓

remaining.

13-5.The carriage slowly returns to its home position.

↓

14.CR lock setting

14-1.The carriage slowly moves to the CR lock set

↓

position.

14-2.The PF Motor rotates counterclockwise, and sets

the CR lock.

↓

14-3.The carriage slowly returns to its home position.

↓

Note *1:	The rotation direction of the PF Motor is as follows.
	Clockwise:	Paper is fed normally
	Counterclockwise: Paper is fed backward
*2:	The condition of the CR lock is as follows.
	Red: CR lock is set
	White: CR lock is released
*3:	Indicates the PG position. “Any position” means that the PG position is not
	recognized because APG is not reset yet.
*4:	Checks if the carriage is not deadlock such as the CR lock is caught in the gap of the carriage.
*5:	Eject the paper if any.
*6:	When paper exists, the existing measurement value saved in EEPROM is read out;
	therefore, the PF Motor does not rotate.
*7:	Executes when the detected temperature is under 5 oC (41oF) by the thermistor on the Printhead.
*8:	The empty sanction operation may occur depending on the situation.
*9:	If paper remains in the printer, the PF Roller rotates by steps enough to eject the paper forcibly.

2.4 Printer Initialization

There are four kinds of initialization method, and the following explains each initialization

1.Hardware initialization

This printer is initialized when turning the printer power on, or printer recognized the cold-reset command (remote RS command).

When printer is initialized, the following actions are performed.

(a)Initializes printer mechanism

(b)Clears input data buffer

(c)Clears print buffer

(d)Sets default values

2.Operator initialization

Initialization when resetting the USB software, and the following are performed.

(a)Clears input data buffer

(b)Clears print buffer

(c)Sets default values

3.Software initialization

The ESC@ command also initialize the printer.

When printer is initialized, the following actions are performed.

(a)Clears print buffer

(b)Sets default values

4.IEEE 1284.4 “rs” command initialization

The printer recognized the IEEE 1284.4 “rs” command. When printer is initialized, the following action is performed.Initialization when an error occurs.

(a)Initializes printer mechanism

(b)Clears input data buffer

(c)Clears print buffer

(d)Sets default values

Initialization in normal operation

(a)Clears input data buffer

(b)Clears print buffer

(c)Sets default values

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2.4 Printer Initialization

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C H A P T E R

3

TROUBLESHOOTING

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3.1 Overview

This chapter provides how to troubleshoot problems analyzing the cause based on the messages shown by the printer driver, printer’s LED status and the observed symptom. Identify and troubleshoot the problem referring to the tables on the following pages.

When some parts need to be replaced, make sure to follow the procedure given in Chapter 4 and carry out required adjustments. If any abnormality is observed in motors or sensors, check the electrical value referring to the 3.1.1 “Troubleshooting on Motors and Sensors”(p.30).

Start

Identifying the error cause by the error message or observed symptom.

Repair or replacement of parts or components

Reassembly and adjustment

End

Figure 3-1. Troubleshooting Flowchart

3.1.1 Troubleshooting on Motors and Sensors

The following tables show the normal electric values of each motor and sensor. When any abnormality is observed in motors and sensors, check their electric values and compare them with the values given in the tables to see if the motors or sensors are broken or not.

Table 3-1. Motor Resistance & Measuring Points

Motor	Motor Connector	Measuring Points	Resistance
CR Motor	CN14	Between Pin 1 and 2	22.7Ω ± 10%
PF Motor	CN13	Between Pin 1 and 2	21.2Ω ± 10%

Table 3-2. Sensor Checkpoints

	Sensor	Sensor Connector	Signal Level	Status
		CN6	2.4V or more	No paper
	PE Sensor
		Between Pin 1 and 2	0.4V or less	Paper exists
		CN7	2.4V or more	Within PG position
	APG Sensor
		Between Pin 1 and 2	0.4V or less	Out of PG position
				CDR mode
			Open: 2.4V or more	(Stacker is at the upper
	CDR Guide Sensor	CN4		position)
		Between Pin 1 and 2		ASF mode
			Close: 0.4V or less	(Stacker is at the lower
				position)
		CN4	Open: 2.4V or more	CD-R Tray inserted
	CD-R Tray Sensor
		Between Pin 3 and 4	Close: 0.4V or less	No CD-R Tray
		CN17	Open: 2.4V or more	Printer Cover opened
	Cover OPEN Sensor
		Between Pin 1 and 2	Close: 0.4V or less	Printer Cover closed

Note : See 2.1.2 “Motors & Sensors”(p.24) for locations of the motors and sensors.

Chapter 3 Troubleshooting

3.1 Overview

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