Epson Stylus Photo RX420, Stylus Photo RX425, Stylus Photo RX430 Service Manual

Download

SERVICE MANUAL

Scanner • Printer • Copier

EPSON Stylus Photo RX420/RX425/RX430

SEOT04-005

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 NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

About This Manual

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.

Manual Configuration

This manual consists of six chapters and Appendix.

CHAPTER 1. 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 Epson-approved lubricants and adhesives required for servicing the product.

CHAPTER 7. APPENDIX

Provides the following additional information for reference:

• Connector pin assignments

• Electric circuit boards components layout

• Electrical circuit boards schematics

• Exploded diagram & Parts List

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

C H E C K

P O I N T

W A R N I N G

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment.

May indicate an operating or maintenance procedure,

practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.

I.ndicates 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 2004/8/18 First Release

CONTENTS

Chapter 1 PRODUCT DESCRIPTION

1.1 Overview. ............................................................................................................. 9

1.1.1 Features. ....................................................................................................... 9

1.2 Specifications. .................................................................................................... 11

1.2.1 Printer specifications . ................................................................................ 11

1.2.2 Scanner specifications . .............................................................................. 19

1.2.3 Common ..................................................................................................... 20

1.3 Interface.............................................................................................................. 22

1.3.1 USB Interface . ........................................................................................... 22

1.3.2 Standard Card Slots . .................................................................................. 23

1.4 Stand-alone Copy. ............................................................................................. 25

1.4.1 Basic Specifications. .................................................................................. 25

1.4.2 Copy Speed. ............................................................................................... 26

1.4.3 Configuration for copying ......................................................................... 27

1.4.4 Relation between original and copy .......................................................... 28

1.5 Memory Card Print. ......................................................................................... 31

1.5.1 Basic Specifications. .................................................................................. 31

1.5.2 Functions..................................................................................................... 32

1.5.3 Index Sheet . ............................................................................................... 34

1.5.4 Layout and Paper Type, Paper Size. .......................................................... 37

1.5.5 Options........................................................................................................ 37

1.5.6 Trimming Function. ................................................................................... 37

1.5.7 Assignment Rules for Photo Frame Numbers and Rotation...................... 38

1.5.8 Layout Drawings . ...................................................................................... 39

1.5.9 Relation between Paper Type and Quality ................................................ 41

1.6 Control Panel..................................................................................................... 42

1.6.1 Buttons........................................................................................................ 42

1.6.2 Indicators .................................................................................................... 42

1.6.3 Operations................................................................................................... 44

1.6.4 Printer Condition and Panel Status............................................................ 49

1.6.5 Memory Functions. .................................................................................... 52

1.6.6 Printer Initialization.................................................................................... 53

Chapter 2 OPERATING PRINCIPLES

2.1 Overview............................................................................................................. 55

2.2 Printer Mechanism............................................................................................ 55

2.2.1 Printer Mechanism...................................................................................... 55

2.2.2 Print Head................................................................................................... 56

2.2.3 Carriage Mechanism................................................................................... 58

2.2.4 Paper Loading/Feeding Mechanism. ......................................................... 60

2.2.5 Ink System Mechanism .............................................................................. 65

2.2.6 Ink Sequence............................................................................................... 68

2.3 Scanner Mechanism .......................................................................................... 70

2.3.1 Scanner Carriage Mechanism..................................................................... 70

2.4 Electrical Circuit Operating Principles.......................................................... 72

2.4.1 PSB/PSE Board .......................................................................................... 73

2.4.2 C579 Main Board ....................................................................................... 74

Chapter 3 TROUBLESHOOTING

3.1 Overview............................................................................................................. 82

3.2 Error Indications and Fault Occurrence Causes .......................................... 82

3.3 Troubleshooting................................................................................................. 87

3.3.1 Superficial Phenomenon-Based Troubleshooting. .................................. 107

Chapter 4 DISASSEMBLY AND ASSEMBLY

4.1 Overview........................................................................................................... 116

4.1.1 Precautions................................................................................................ 116

4.1.2 Tools ......................................................................................................... 117

4.1.3 Work Completion Check.......................................................................... 118

4.2 Caution regarding assembling/disassembling of the Printer Mechanism, and

how to ensure of quality on re-assembled product ...................................... 119

4.3 Disassembly...................................................................................................... 120

4.3.1 Document Cover. ..................................................................................... 121

4.3.2 Paper Support Assy. ................................................................................. 122

4.3.3 Stacker Assy. . .......................................................................................... 122

4.3.4 Scanner Unit ............................................................................................. 123

4.3.5 Panel Unit ................................................................................................. 128

4.3.6 Housing Upper.......................................................................................... 129

4.3.7 Print Head ................................................................................................. 130

4.3.8 Printer Mechanism. .................................................................................. 132

4.3.9 PS Board Unit........................................................................................... 135

4.3.10 Waste Ink Pads . ..................................................................................... 136

4.3.11 Main Board Unit. ................................................................................... 138

4.3.12 ASF Unit. ............................................................................................... 141

4.3.13 Holder Shaft Unit. .................................................................................. 143

4.3.14 CR Guide Frame. ................................................................................... 146

4.3.15 CR Motor................................................................................................ 147

4.3.16 PF Motor................................................................................................. 148

4.3.17 Carriage Unit . ........................................................................................ 149

4.3.18 Paper Guide Upper Unit . ....................................................................... 152

4.3.19 Front Frame . .......................................................................................... 153

4.3.20 EJ Frame Unit. ....................................................................................... 154

4.3.21 Ink System Unit ...................................................................................... 156

4.3.22 Paper Guide Front Unit. ......................................................................... 157

4.3.23 PG Sensor ............................................................................................... 158

4.3.24 PF Roller Unit. ....................................................................................... 159

Chapter 5 ADJUSTMENT

5.2.8 Input PF roller manufacture code. ........................................................... 165

5.2.9 Top margin adjustment............................................................................. 165

5.2.10 Head angular adjustment . ...................................................................... 166

5.2.11 Bi-D adjustment...................................................................................... 167

5.2.12 PW adjustment........................................................................................ 167

5.2.13 First dot position adjustment . ................................................................ 168

5.2.14 CR motor heat protection control. ......................................................... 168

5.2.15 Print check pattern. ................................................................................ 168

5.3 Adjustment Except Adjustment Program . .................................................. 170

5.3.1 PG adjustment........................................................................................... 170

5.3.2 PF Scale Sensor positioning adjustment. ................................................. 173

Chapter 6 MAINTENANCE

6.1 Overview........................................................................................................... 175

6.1.1 Cleaning.................................................................................................... 175

6.1.2 Service Maintenance................................................................................. 175

6.1.3 Lubrication................................................................................................ 177

Chapter 7 APPENDIX

7.1 Connector Summary ....................................................................................... 182

7.1.1 Major Component Unit............................................................................. 182

7.2 Component Layout (TBD).............................................................................. 188

7.3 Exploded Diagram........................................................................................... 189

7.4 Parts List .......................................................................................................... 194

7.5 Electrical Circuits............................................................................................ 196

5.1 Overview. .......................................................................................................... 162

5.1.1 Required Adjustment. .............................................................................. 162

5.2 Adjustment by using adjustment program. ................................................. 164

5.2.1 EEPROM Data Copy. .............................................................................. 164

5.2.2 Waste ink pad counter . ............................................................................ 164

5.2.3 Destination setting . .................................................................................. 165

5.2.4 Initialize PF deterioration offset. ............................................................. 165

5.2.5 Disenable PF deterioration offset ............................................................ 165

5.2.6 Ink charge ................................................................................................. 165

5.2.7 Input Head ID ........................................................................................... 165

PRODUCT DESCRIPTION

CHAPTER

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.1 Overview

The major features of EPSON color inkjet dot matrix printer EPSON Stylus Photo RX420/RX425/RX430 are:

1.1.1 Features

V Printer functions

As a printer, this unit achieves high-quality output at high speed on plain paper, and uses new dye inks for improved light fastness, water fastness, gas fastness, rubbing fastness. It includes the following features.

T Maximum print resolution: 2880 (H) x 1440 (V) dpi T Separate ink cartridge for each color T ASF (Auto Sheet Feeder) holds up to 100 cut sheets (64g/m2) T Border-free printing with EPSON specialty media is provided T Reduced noise level T Fast and thick draft mode with the combination of real black and composite

black

V Scanner functions

Use of a CIS sensor means no warm-up period is required, which makes scanning more convenient and allows for a more compact scanner. Additional features include the following.

T Maximum optical resolution : 1200 x 2400 dpi T Scan gradations : 48 bits (input), 24 bits (output)

V Stand-alone copy functions

It benefits from using a more recently developed type of ink which enables photoquality copies to be made not only on special media but even on plain paper. Only the basic copy functions are provided for easy operation.

T Paper size can be selected from 2 options (A4/10x15). T Paper type can be selected from 2 options, plain paper or photo paper, which

also defines copy quality.

T Enlarge / Reduce factor can be selected from 2 options, actual size (100%) or

“Fit to page”.

T Copy margin is automatically selected from 3 options, related to paper type

and paper size. 3mm, “Small Margins Copy”, “Border Free Copy”

T Fast and thick draft mode with the combination of real black and composite

black

T Copy functions can be directly alternated from memory card print functions,

by operation panel.

V Card reader functions

This unit includes memory card slots that support CompactFlash, SmartMedia, Memory Stick, Memory Stick PRO, Micro Drive, SD Memory Card, and xDPicture Card standards.

V Memory card print functions

This unit can print images from the memory card in memory card slots in standalone mode. The memory card print features are as follows.

T Supports “Index sheet printing” whereby images can be selected simply by

marking an index sheet. Selecting images is easy-just check the desired images and then scan the index sheet.

T Memory card print functions can be directly alternated from copy functions,

by operation panel.

V Scan functions

This unit provides scan mode so that data can be scanned and transferred to a connected computer or to e-mail via application software like the EPSON SMART PANEL.

PRODUCT DESCRIPTION Overview 9

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Simultaneous use of functions

Printer functions and scanner functions are independent and can therefore be operated simultaneously from a connected computer.

V Easy operation panel V Exterior design

Figure 1-1. Product’s external view

PRODUCT DESCRIPTION Overview 10

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.2 Specifications

1.2.1 Printer specifications

This section covers specifications of the printer.

1.2.1.1 Physical Specification

V Weight

T 6.6kg (without the ink cartridges)

V Dimension (Including rubber feet)

T Printing : 430mm (W) x 491mm (D) x 285mm (H) T Storage : 430mm (W) x 344mm (D) x 170mm (H)

1.2.1.2 Printing Specification

V Print Method

T On demand ink jet

V Nozzle Configuration

T Monochrome 90 nozzles T Color 90 nozzles x 3 (Cyan, Magenta, Yellow)

8.467

(120/360inch)

#C90

#B90

#C89

#B89

#C88

#B88

#B3 #B2 #B1

#C3 #C2 #C1

Paper Feed Direction

2.822

(40/360inch)

#A90 #A89 #A88

A row B row C row D row

#A3 #A2 #A1

2.822

(40/360inch)

#D90 #D89

#D88

#D3 #D2

#D1

BlackCyan Magenta Yellow

0.007055

V Print Direction

T Bi-directional minimum distance printing (with logic seeking)

V Print Speed & Printable Columns

Table 1-1. Character mode

Character pitch Printable columns CR speed

10 CPI (Pica) 80 285 CPS*

Note "*": CPS: Characters/Second

This speed is when using normal dot printing mode.

Table 1-2. Graphics mode (standard)

Horizontal resolution Printable area Max. dot count CR speed

360dpi* 209.8mm (8.26") 2976 285cps 360dpi 209.8mm (8.26") 2976 285cps

720dpi 209.8mm (8.26") 5952 285cps 1440dpi 209.8mm (8.26") 11904 285cps 2880dpi 209.8mm (8.26") 23808 285cps

Note "*": Draft Printing

Table 1-3. Graphics mode (border-free printing)

Horizontal resolution Printable area Max. dot count CR speed

0.1411 (2/360inch)

(1/360inch)

360dpi* 215.05mm (8.46") 3048 285cps

720dpi 215.05mm (8.46") 6096 285cps 1440dpi 215.05mm (8.46") 12192 285cps 2880dpi 215.05mm (8.46") 24384 285cps

0.2117 (3/360inch)

Note "*": Except Draft Printing

V Control Code

T ESC/P Raster command

Carriage Moving Direction

Figure 1-2. Nozzle configuration

PRODUCT DESCRIPTION Specifications 11

T EPSON Remote command

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Internal fonts

T Character code : Alphanumeric with expanded graphics (PC437)

ASCII, 20H to 7FH only

T Fonts : EPSON original fonts

Alphanumeric font: Courier

V Input buffer size

T 32 Kbytes

1.2.1.3 Paper Feed Specifications

V Paper feed method

Friction feed, using one ASF (Auto Sheet Feeder)

V Paper path

Top feed, front out

V Paper feed rates

T 203.2mm/sec (8.0inch/sec)

: high quality mode, 25.4-mm feed

T 294.64mm/sec (11.6inch/sec)

: high speed mode, continuous feed

V CR interval

Programmable in 0.0176mm (1/1440inch) steps

1.2.1.4 Paper Support

V Cut sheets

Paper size

A4 210mm 297mm A5 148mm 210mm

B5 182mm 257mm

Letter

Legal

Executive

Half Letter

5"x8"

8"x10"

User

defined

89-215.9mm 89-1117.6mm

Dimensions

Width Length

215.9mm (8.5")

184.2mm

(7.25")

139.7mm (5.5")

127mm

(5")

203.2mm

(8")

Table 1-4. Cut sheets

Thickness Weight Paper type

279.4mm (11")

355.6mm (14")

266.7mm

(10.5")

215.9mm

(8.5")

203.2mm

(8")

254mm

(10")

0.08-0.11mm (0.003"-

0.004")

64-90g/m

(17-24(lb))

Plain paper

Recycled paper

C A U T I O N

T Poor quality paper may reduce print quality and cause paper

jams or other problems. If you encounter problems, switch to a higher grade of paper.

T It is necessary that there is no wrinkle, nap, tear, fold, so on in

the form.

T The curve of form must be 5mm or below. T Use paper under normal conditions

• Temperature 15 to 25°C (59 to 77°F)

• Humidity 40 to 60% RH

PRODUCT DESCRIPTION Specifications 12

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Postcards V Envelopes

Table 1-5. Postcards

Paper size

Postcard 100mm 148mm

Return postcard set 200mm 148mm

C A U T I O N

T Use paper under normal conditions

• Temperature 15 to 25°C (59 to 77°F)

• Humidity 40 to 60% RH

Dimensions

Width Length

T It is necessary that there is no wrinkle, nap, tear, fold, so on in

the form.

T The curve of form must be 5mm or below. T As for the going and returning postcard, don’t use the one with a

fold in the center.

Paper type

Government-standard postcard

Table 1-6. Envelopes

Paper size

No.10 *

DL *

C6 *

220x132 * Tall No.3 * Tall No.4 *

Western No.1 * Western No.2 * Western No.3 * Western No.4 *

Note *1: Check that the flap is on the long edge and can be folded.

*2: Check that the flap is on the short edge and can not be folded.

C A U T I O N

T Use paper under normal conditions

Dimensions

Thickness Weight Paper type

Width Length

241.3mm (9.5")

104.8mm (4.125")

220mm 110mm 162mm 114mm 220mm 132mm 120mm 235mm

N/A

90mm 205mm 120mm 176mm 114mm 162mm

98mm 148mm 105mm 235mm

• Temperature 15 to 25°C (59 to 77°F)

• Humidity 40 to 60% RH

75-90g/m

(20-24(lb))

75-100g/m (20-27(lb))

T Poor quality paper may reduce print quality and cause paper

jams or other problems. If you encounter problems, switch to a higher grade of paper.

T It is necessary that there is no wrinkle, nap, tear, fold, so on in

the form.

T Don’t use the adhesive envelopes. T Don’t use sleeve insert envelopes and cellophane window

envelopes.

Bond paper

Air mail

PPC

Craft paper

New Kent paper

PRODUCT DESCRIPTION Specifications 13

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Exclusive papers

Quality: EPSON Exclusive paper Transparency printing is only available at normal temperature.

Table 1-7. Exclusive papers

Item Size

Premium Ink Jet Plain Paper *

A4 210 297 0.13 92.5

Width

(mm)

Bright White Ink Jet Paper A4 210 297 0.11 80

Photo Paper *1* Photo Quality Ink Jet Paper * Matte Paper Heavy Weight *

Premium Semigloss Photo Paper

Double Sided Matte Paper * Iron-On Cool Peel Transfer

Paper * Photo Quality Self Adhesive

Sheet * Photo Stickers 4/16 *

A4 210 297 0.23 188

A4 210 297 0.13 102 A4 210 297 0.23 167 A4 210 297

10x15 101.6 152.4

A4 210 297 0.25 178

A4 210 297 0.18 124

A4 210 297 0.19 167

A6 105 148 0.19 N/A A4 210 297

Premium Glossy Photo Paper

3R *

Economy Photo Paper *1*

A4 210 297 0.23 188

89 127

8"x10" 203.2 254

Photo Quality Ink Jet Cards *

A6 105 148

Note *1: Not supported with stand-alone functions of copy and memory card print.

*2: Only for Stylus Photo RX420/RX425 *3: Only for Stylus Photo RX430

Length

(mm)

Thickness

(mm)

0.27 250

0.23 18810x15 101.6 152.4

0.21 1805"x8" 127 203.2

Weight

(g/m2)

C A U T I O N

T Use paper under normal conditions.

• Temperature 15 to 25°C (59 to 77°F)

• Humidity 40 to 60% RH

T Poor quality paper may reduce print quality and cause paper

jams or other problems. If you encounter problems, switch to a higher grade of paper.

T It is necessary that there is no wrinkle, nap, tear, fold, so on in

the form.

T The curve of form must be 5mm or below.

Note : 10x15

The panel indicator only. The Printer chalks the 10x15 format up to the 4x6 format.

PRODUCT DESCRIPTION Specifications 14

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.2.1.5 Printing Area

V Cut sheet (standard printing)

T Printable area

The print quality is guaranteed for the print area above the 3mm bottom margin. For paper width (PW) and paper length (PL), refer to “1.2.1.4 Paper

Support” (p.12).

Refer to the following table. As for each margin area, refer to Figure 1-3 (p.15).

Table 1-8. Applicable paper/Printing area

Paper type

A4 A5 B5 Letter Legal Executive

Cut sheets

Half Letter 5"x8" 8"x10" User defined Postcard

Post

Return postcard set

cards

Premium Ink Jet Plain Paper Bright White Ink Jet Paper Photo Paper Photo Quality Ink Jet Paper Matte Paper Heavy Weight Premium Semigloss Photo Paper Double Sided Matte Paper Iron-On Cool Peel Transfer Paper Photo Quality Self Adhesive Sheet

Exclusive papers

Photo Stickers 4/16 Premium Glossy Photo Paper Economy Photo Paper Photo Quality Ink Jet Cards

Left

margin

3mm

(0.12")

3mm

(0.12")

3mm

(0.12")

Right

margin

3mm

(0.12")

3mm

(0.12")

3mm

(0.12")

Top

margin

3mm

(0.12")

3mm

(0.12")

3mm

(0.12")

Bottom

margin

3mm

(0.12")

3mm

(0.12")

3mm

(0.12")

Printable area

Paper Feed Direction

Figure 1-3. Printable area Cut sheet (standard printing)

PRODUCT DESCRIPTION Specifications 15

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Cut sheet (border-free printing)

T Printable area

For paper width (PW) and paper length (PL), refer to “1.2.1.4 Paper Support”

(p.12).

Refer to the following table. As for each overhang area, refer to Figure 1-4

(p.16).

Table 1-9. Applicable paper/Printing area

Paper type

Photo Quality Ink Jet Cards Photo Paper Premium Glossy Photo Paper Matte Paper Heavy Weight Premium Semigloss Photo Paper

Exclusive paper

Double Sided Matte Paper Economy Photo Paper

Left

Overhang

2.5mm (0.09")

Right

Overhang

2.5mm (0.09")

Top

Overhang

3mm

(0.12")

Bottom

Overhang

5mm

(0.2")

LO ROPW

Paper size

Paper Feed Direction

Printable area

Figure 1-4. Printable area for Cut sheet (border-free printing)

PRODUCT DESCRIPTION Specifications 16

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Envelopes

T Printable area

For paper width (PW) and paper length (PL), refer to “1.2.1.4 Paper Support”

(p.12).

Refer to the following table. As for each margin area, refer to Figure 1-5

(p.17).

Table 1-10. Applicable paper/Printing area

Paper type Left Margin Right Margin Top Margin Bottom Margin

No.10

DL C6

220x132

Tall No.3

3mm (0.12") 3mm (0.12") 3mm (0.12") 20mm (0.79")

Tall No.4 Western No.1 Western No.2 Western No.3 Western No.4

Printable area

Paper Feed Direction

Figure 1-5. Printable area for envelopes

PRODUCT DESCRIPTION Specifications 17

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.2.1.6 Ink Cartridge Specification

V Type/color : EPSON-brand special ink cartridges

Table 1-11. Ink Cartridge

Color Size Stylus Photo RX420/RX425 Stylus Photo RX430

Black SS size T0551 T0561

Cyan SS size T0552 T0562

Magenta SS size T0553 T0563

Yellow SS size T0554 T0564

V Print Capacity

T 400 pages/A4 (ISO/IEC10561 Letter Pattern at 360 dpi) T 290 pages/A4 (360dpi, 5% coverage)

V Shelf life : After packing is opened, it is assumed 6 months, and

assumes 2 years including this.

V Storage Temperature

Table 1-12. Storage Temperature

Situation Storage Temperature Limit

When transported in individual boxes -30 oC to 50 oC When stored in individual boxes -30 oC to 40 oC When installed in main unit -20 oC to 40 oC

10 days max. at 50 oC

1 month max. at 40 oC

V Dimension : 12.7mm (W) x 73.46mm (D) x 55.25mm (H)

Base View

73.46mm

Figure 1-6. Ink cartridge

C A U T I O N

T The ink cartridge cannot be refilled. T The ink cartridge that passes the expiration date should not be

used.

T The ink in the ink cartridge freezes when leaving it in the

environment of -16°C or under. It takes 3 hours that the frozen ink becomes usable when moving it from the environment of

-20°C to the environment of 25°C.

12.7mm

PRODUCT DESCRIPTION Specifications 18

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.2.2 Scanner specifications

This section covers specifications of the scanner.

1.2.2.1 Basic Specifications

V Product type : Flatbed color image scanner V Scanning method : Scanning of fixed document with mobile scan head V Sensor : CIS V Maximum scan area : 8.5" x 11.7" (216mm x 297mm) V Document sizes : A4 or US letter V Max. effective pixels : 10,200 x 14,040 pixels (1200 dpi) V Resolution

T Main scan : 1200 dpi T Sub scan : 2400 dpi with Micro Step

V Scanning resolution : 50 to 4800 dpi (selectable in 1-dpi steps), 7200 dpi,

9600 dpi

V Gradations (pixel depth) : Each color pixel has 16-bit input and either 1-bit or 8-

bit output.

V Scanning speed : 1200 dpi

T Color : Approx. 30msec/line

1.2.2.3 Image scanning area

Table 1-13. Image scanning area

(readable width)

216mm (8.5") 1.5mm ± 1mm 297mm (11.7") 1.5mm ± 1mm

OLM

(out-of-range left margin)

Original's top left alignment position

OLM

First pixel

Scan direction

(readable length)

(out-of-range top margin)

RLOTM

OTM

Original (face down)

Scan bed

Scan area

T Monochrome : Approx. 10msec/line

V Light source : RGB Three Color LED

Figure 1-7. Image scanning area

1.2.2.2 Detailed Specifications

V Control commands : ESC/I D7 V Gamma correction : Two user-defined levels

PRODUCT DESCRIPTION Specifications 19

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.2.3 Common

1.2.3.1 Electric Specification

V Primary power input

Table 1-14. Primary power input

100-120V model 220-240V model

Rated power supply voltage (ACV) 100 ~ 120 220 ~ 240 Input voltage range (ACV) 90 ~ 132 198 ~ 240 Rated current (A) 0.4 (Max. 0.7) 0.2 (Max. 0.4) Rated frequency (Hz) 50 ~ 60 Input frequency range (Hz) 49.5 ~ 60.5

Approx. 10W

(Standalone copying, ISO10561 Letter Patter, Plain

Paper - Text)

Approx. 1.5W

Power consumption (W)

Note 1: This product complies with the “Energy Star” standards.

2: If the printer is not operated at all for at least three minutes, the standby function

reduces the current to the motor to conserve power.

(Low-power Mode)

Approx. 1.3W

(Sleep Mode)

Approx. 0.2W

(Power Off Mode)

Approx. 1.8W

(Low-power Mode)

Approx. 1.6W

(Sleep Mode)

Approx. 0.4W

(Power Off Mode)

1.2.3.2 Environmental Performance

Table 1-15. Environmental Performance

Condition Temperature Humidity *

Operating 10 ~ 35°C *

Not operating *

Note *1: After unpacking (storage)

*2: No condensation *3: Under the following conditions

-20 ~ 40°C 5 ~ 85%

Humidity (%)

80 70 60 50 40 30 20

Figure 1-8. Temperature/Humidity range

20 ~ 80% *

Temperature (°C)

1 x 10-3seconds

2 x 10-3seconds

Impact Vibration

1G,

2G,

35 40

0.15G

0.50G

3: If the scanner is not operated at all for at least four minutes, the standby function

reduces the current to the motor to conserve power.

V Insulation resistance

10MΩ minimum (tested between AC line and chassis, test voltage: DC500V)

V Dielectric strength

T AC1000Vrms for one minute or AC1200Vrms for one second

(100-120V version)

T AC1500Vrms for one minute (220-240V version)

1.2.3.3 Durability

V Total print life : 10,000 pages (black only, A4), or 5 years (whichever

comes first)

V Print Head Life : 3 billion shots (per nozzle) or 5 years (whichever

comes first)

V Scanner head : MCBF (30,000 cycles)

PRODUCT DESCRIPTION Specifications 20

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.2.3.4 Safety Standards: EMC

Table 1-16. Safety Standards: EMC

100-120V version 220-240V version

Safety standards

EMI

UL60950 CSA22.2 No.60950 FCC part15 subpart B class B EN 55022 (CISPR Pub.22) class B CSA C108.8 class B AS/NZS 3548 class B

EN 60950

1.2.3.5 Acoustic Noise

V Noise level

45dB (TBD) (approx.) (according to ISO7779 when for copying)

1.2.3.6 CE Marking

V 220-240 V version

T Low Voltage Directive 73/23/EEC : EN60950 T EMC Directive 89/336/EEC : EN55022 Class B

EN61000-3-2 EN61000-3-3 EN55024

PRODUCT DESCRIPTION Specifications 21

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.3 Interface

The EPSON Stylus Photo RX420/RX425/RX430 provides the following interface.

1.3.1 USB Interface

V Standards

T “Universal Serial Bus Specifications Revision 2.0” T “Universal Serial Bus Device Class Definition for Printing Devices Version

1.1” (printer unit)

T “Universal Serial Bus Mass Storage Class Bulk-Only Transport Revision 1.0”

(storage unit)

V Transfer rate : 12 Mbps (Full Speed Device) V Data format : NRZI V Compatible connector : USB Series B V Recommended cable length : 2 [m] or less V Device ID

Table 1-17. Device ID

Model Name Device ID

[00H][5EH] MFG:EPSON;

Stylus Photo RX420

Stylus Photo RX425

Stylus Photo RX430

CMD:ESCPL2,BDC,D4; MDL:Stylus[SP]Photo[SP]RX420; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]Photo[SP]RX420;

[00H][5EH] MFG:EPSON; CMD:ESCPL2,BDC,D4; MDL:Stylus[SP]Photo[SP]RX420; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]Photo[SP]RX420;

[00H][5EH] MFG:EPSON; CMD:ESCPL2,BDC,D4; MDL:Stylus[SP]Photo[SP]RX430; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]Photo[SP]RX430;

V Connector signal layout

Table 1-18. Connector pin assignment and signals

Pin No. Signal name I/O Function description

1 VCC - Cable power. Max. power consumption is 2mA. 2 -Data Bi-D Data 3 +Data Bi-D Data, pull up to +3.3V via 1.5K ohm resistor. 4 Ground - Cable ground

Pin #2

Pin #3

Pin #1

Pin #4

Figure 1-9. USB pin Assignment

V Product ID : 0x080F V Endpoint attribute

Table 1-19. Endpoint attribute

I/F No. Endpoint Address Endpoint Type Linked Interface

0x00

0x01

0x02

0x01 Bulk In 0x02 Bulk Out 0x03 Bulk In 0x04 Bulk Out 0x05 Bulk In 0x06 Bulk Out

Scanner

Printer

Card

PRODUCT DESCRIPTION Interface 22

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.3.2 Standard Card Slots

1.3.2.1 Memory card

Table 1-20. Memory card

Memory card standards Slots Supported memory cards

Compact Flash

SmartMedia

Memory Stick

Memory Stick PRO

MultiMedia Card

xD-Picture Card

CF+ and CompactFlash Specification Revision 1.4 compliant

SmartMedia Standard 2000 compliant

MemoryStick Standard version

1.3 compliant

MemoryStick Standard Memory Stick PRO Format Specifications version 1.0 compliant

SD Memory Card Specifications / PART1. Physical Layer Specification Version 1.0 compliant

MultiMediaCard Standard compliant

xD-Picture Card Specification Version 1.00 compliant

Card

CF Type II slot

SmartMedia slot

Memory Stick/ Memory Stick PRO slot

SD/MMC slot

xD-Picture Card slot

• Compact Flash (memory card only)

• Microdrive

Smart Media (maximum capacity: 128 MB)

• Memory Stick (maximum capacity: 128 MB, including versions with memory select function)

• MagicGate Memory Stick (maximum capacity: 128 MB, copy protection function is not supported)

• Memory Stick Duo (requires Memory Stick Duo adapter)

• Memory Stick PRO (copy protection function is not supported)

• Memory Stick PRO Duo (requires Memory Stick Duo adapter)

• SD (Secure Digital) memory card

• miniSD card (requires SD adapter)

MultiMediaCard

xD-Picture Card

C A U T I O N

Note the following caution points when handling the memory card. T Since the SD card and Memory Stick share the same slot, only

one can be inserted at a time.

T Since the SmartMedia and xD-Picture Card share the same slot,

only one can be inserted at a time.

T When a memory card is being accessed, be sure to keep the

memory card slot’s cover closed and do not touch the memory card.

1.3.2.2 Supported power supply voltage

V 3.3V/5V (both) V 3.3V (only)

NOTE 1: 3.3V power is supplied to media that support both 3.3V and 5V.

2: Maximum current to memory card is 500mA. 3: 5V type memory cards are not supported.

PRODUCT DESCRIPTION Interface 23

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.3.2.3 Multi-slot operations

V Overview

T There is only one type of card that can be used to simultaneously access both

a connected computer and the direct printing function.

T The slots have assigned priority to determine which slot will be accessed first

when cards are inserted in several slots at once.

T To select a card that has been inserted in a non-active slot, the card in the

active slot must first be removed.

• Direct printing: Only the image files in the active slot are valid and have assigned frame numbers. The number of images will not change if a card is also inserted in a non-selected slot.

• Connection to computer (Windows): Only one drive is displayed at a time as a “removable disk” and only the card that is in the active slot can be accessed via the removable disk. A card that has been inserted into a non-selected slot cannot be accessed.

• Connection to computer (Macintosh): Only the card in the active slot can be mounted on the desktop. A card that has been inserted into a non-selected slot cannot be mounted on the desktop.

V Details

T Access priority

The access priority among slots is assigned as: 1: CF (Micro Drive) 2: Smart Media / xD-Picture Card 3: Memory Stick (Memory Stick PRO) / SD (MMC)

T Slot selection when power is turned on

If cards are inserted in several slots when the power is turned on, the active slot is determined by the priority ranks listed above.

Example: If Smart Media and Memory Stick are both inserted at power-on,

the Smart Media slot becomes the active slot.

T Slot selection after power is turned on

When a card is removed from the active slot, the slot with the next-highest priority becomes the active slot (if a card has been inserted into it). There is no need to re-insert any card before accessing it. If no slots contain any cards, the highest-priority slot (CF Micro Drive) again becomes the active slot. Cards can be removed from non-selected slots in any order.

Example: If a memory stick and CF card are inserted while Smart Media is

selected, CF becomes selected (active) once Smart Media is removed.

PRODUCT DESCRIPTION Interface 24

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.4 Stand-alone Copy

1.4.1 Basic Specifications

1.4.1.1 Supported paper sizes, types and qualities

Table 1-21. Supported paper sizes, types and qualities

Paper type

Photo

Paper size

A4, 10x15 A4, 10x15

Paper name

Plain Paper Recycled Paper Bright White Paper

Premium Glossy Photo Paper Photo Paper

Premium Semigloss Photo Paper Photo Paper

Note 1: The quality of draft copy is not affected by “Paper type” selection.

2: 10x15

The panel indicator only.The Printer chalks the 10x15 format up to the 4x6 format.

Note *1: Connected with Paper type.

*2: For Photo paper

SN, AF LUT parameter is same as the Premium Glossy Photo Paper.

Panel

Indication

Plain Paper Plain Paper A4 A4

Quality *

Paper *

Paper size

Panel

Indication

A4 A4

1.4.1.2 Zoom function

The zoom function provides enlarged or reduced copies of originals. The either of the following can be selected from the operation panel.

V Actual (The state which “Fit to page” is not selected. It is the power-on default.)

The zoom factor is set to 100%.

V Fit to page

This function detects the image size of the original and automatically sets the zoom factor of the copy according to the copy paper’s printable area.

1.4.1.3 Number of copies setting

This function sets the number of copies. The setting range is 1 to 9 and 100.

1.4.1.4 Maximum copy size

V 216 x 297mm

PRODUCT DESCRIPTION Stand-alone Copy 25

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.4.1.5 Copy layout

The following copy layout is provided according to “Paper type”, “Paper size” and zoom selections.

V Standard copy

Provided for ordinary use with 3mm copy margin from every side.

V BorderFree copy

Border-free printing of copies occurs when the print area is set as larger than the copy paper’s size. In such cases, the outer edges of the original image may be omitted in the printed copy.

V Small Margins copy

This function sets a 1.5mm margin on al l four sides when printing in order to make maximum use of the original image and copy paper.

NOTE: Only “Standard Copy” can be used in draft copy mode.

Table 1-22. Copy layout

Zoom Paper type Paper size B&W / Color Layout

A4 B&W, Color Standard

10x15 B&W, Color Standard

A4 B&W, Color Standard

10x15 B&W, Color Standard

Actual *

Fit to page *

Plain Paper

Photo Paper A4, 10x 15 B&W, Color Small margin

Plain Paper

Photo Paper A4, 10x15 B&W, Color Border free

1.4.1.6 Multiple copies from an original

Second and subsequent copies can be printed from an original without scanning. When printing two or more copies, under the following settings the scan data can be stored in the unit’s memory so that the second and subsequent copies can be printed without scanning.

V “Draft” mode (monochrome/color) V “Text” mode (monochrome)

1.4.2 Copy Speed

1.4.2.1 Black Copy Speed

V Plain Paper – Draft TBDcpm (Copy per minute), Plain Paper – TBDcpm V Black e-Memo text A4 size pattern, zoom 100%

The above speed is for the second and subsequent copies (the time between ejection of the first page to ejection of the second page).

1.4.2.2 Color Copy Speed

V Plain Paper – Draft TBDcpm (Copy per minute) V Color e-Memo text A4 size pattern, zoom 100%

The above speed is for the second and subsequent copies (the time between ejection of the first page to ejection of the second page)

Note : 10x15

The panel indicator only.The Printer chalks the 10x15 format up to the 4x6 format.

Note *1: Actual is the state that “Fit to page” is not selected.

*2: “Fit to page” automatically sets the enlarge/reduce scale so that the entire image fits

into the printable area or the border free area when border free layout is selected. When the original image is smaller than general card size (approx. 54mm x 86mm), the print margins will be different from the one that is defined by each layout. The image placement uses the upper left corner as the origin and any margins that occur during the fitting process occur along the bottom and/or right edge.

PRODUCT DESCRIPTION Stand-alone Copy 26

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.4.3 Configuration for copying

Table 1-23. Configuration for copying

Copy Mode setting Scan and Print configuration

Enlarge /

Reduce*1

(%)

100

(Default)

100

(Default)

100

(Default)

100

(Default)

100

(Default)

100

(Default)

Panel

Indication*

Plain Paper

Photo Paper

Draft (Plain

paper only)

B&W /

Color

B&W *

Color *

B&W *

Color *

B&W

Color *

Note *1: “Default” is the state in which “Fit to page” is not selected. When “Fit to page” is

selected, scan resolution will be optimized according to enlarge/reduce scale.

*2: Pure black will be used in both B&W and color mode. *3: With “Draft”, both real black and composite black will be used for black printing. *4: Corresponding paper type is as follows. And for Photo paper, SN, AF LUT

parameter is same as the Premium Glossy Photo Paper.

Scan

resolution*1

(M x S dpi)

600 x 300 360 x 360 VSD1 Off On

300 x 300 360 x 360 VSD1 On On

600 x 600

300 x 100 360 x 120 Eco Off On

resolution

(H x V dpi)

720 x 1440

CNC

720 x 1440

CNC *

Dot size MW

VSD3 On On

High

Speed

LUT

Table 1-24. Paper type

Paper name Panel Indication

Plain Paper Recycled Paper

Plain Paper

Bright White Paper Premium Glossy Photo Paper Photo Paper Premium Semigloss Photo Paper Photo Paper

PRODUCT DESCRIPTION Stand-alone Copy 27

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.4.4 Relation between original and copy

1.4.4.1 Standard copy

The following table shows the relative positioning of the original and copy.

Table 1-25. Original (scanner)

(readable width)

216mm (8.5") 1.5mm ± 1mm 297mm (11.7") 1.5mm ± 1mm

RM LM TM BM

3mm (0.12") 3mm (0.12") 3mm (0.12") 3mm (0.12")

Note : Refer to “1.2.1.4 Paper Support” (p.12) for paper width (PW) and paper length (PL).

(out-of-range left margin)

OLM

Table 1-26. Copy (printer)

(readable length)

OTM

(out-of-range top margin)

OLM

TopPW

TopRW

*2*1

Right side of copy

Print direction

Scan direction

BMTM

Copy

Print area

Copy paper

Original (face down)

Scan area

Scan bed

Right side of original

OTM RL

Note *1: This indicates the top left corner of the original. Normally, this corner is aligned

with the scan bed’s top right corner as the reference point.

*2: This indicates the scan start position at the top left of the original, which

corresponds to the print start position at the top left of the copy. The bottom right corner position of the copy is within the print area but varies according to the enlarge/reduce setting.

Figure 1-10. Standard copy

PRODUCT DESCRIPTION Stand-alone Copy 28

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.4.4.2 BorderFree Copy

The following table shows the relative positioning of the original and copy.

Table 1-27. Original (scanner)

(readable width)

216mm (8.5") 1.5mm ± 1mm 297mm (11.7") 1.5mm ± 1mm

RO LO TO BO

2.5mm (0.09") 2.5mm (0.09") 3mm (0.12") 5mm (0.2")

Note : Refer to “1.2.1.4 Paper Support” (p.12) for paper width (PW) and paper length (PL).

(out-of-range left margin)

OLM

Table 1-28. Copy (printer)

(readable length)

OTM

(out-of-range top margin)

OLM

Right side of copy

TopPW

Print direction

*2*1

Scan direction

TopRW

Copy

Print area

Copy paper

Original (face down)

Scan area

Scan bed

Right side of original

OTM RL

Note *1: This indicates the top left corner of the original. Normally, this corner is aligned

with the scan bed’s top right corner as the reference point.

*2: This indicates the scan start position at the top left of the original, which

corresponds to the print start position at the top left of the copy. The bottom right corner of the print area varies according to the scale setting in the print area.

Figure 1-11. BorderFree Copy

PRODUCT DESCRIPTION Stand-alone Copy 29

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.4.4.3 Small Margins copy

The following table shows the relative positioning of the original and copy.

Table 1-29. Original (scanner)

(readable width)

216mm (8.5") 1.5mm ± 1mm 297mm (11.7") 1.5mm ± 1mm

RM LM TM BM

1.5mm (0.06") 1.5mm (0.06") 1.5mm (0.06") 1.5mm (0.06")

Note : Refer to “1.2.1.4 Paper Support” (p.12) for paper width (PW) and paper length (PL).

(out-of-range left margin)

OLM

Table 1-30. Copy (printer)

(readable length)

OTM

(out-of-range top margin)

OLM

TopPW

TopRW

*2*1

Right side of copy

Print direction

Scan direction

BMTM

Copy

Print area

Copy paper

Original (face down)

Scan area

Scan bed

Right side of original

OTM RL

Note *1: This indicates the top left corner of the original. Normally, this corner is aligned

with the scan bed’s top right corner as the reference point.

*2: This indicates the scan start position at the top left of the original, which

corresponds to the print start position at the top left of the copy. The bottom right corner position of the copy is within the print area but varies according to the enlarge/reduce setting.

Figure 1-12. Small Margins copy

PRODUCT DESCRIPTION Stand-alone Copy 30

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5 Memory Card Print

1.5.1 Basic Specifications

1.5.1.1 File system

DCF Version 1.0 or 2.0 is the file system that can be used with this unit’s stand-alone printing functions. Operation is not guaranteed when any other file system is used. The file system used by the card reader function depends on the host’s specifications. For a detailed description of the DCF specifications, see the “Design Rule for Camera File System Standard, DCF Version 2.0, JEIDA-CP-3461”.

1.5.1.2 Media format

V Media must be formatted according to the DCF Version 1.0 or 2.0 standard. V DOS FAT formats (FAT12, FAT16) and single partition (basic partition)

1.5.1.3 File formats

The file formats supported by this unit are described below. V JPEG files (*.JPG)

These are photo data files that comply with the Exif Version 2.21 standard. (Exif version 1.0/2.0/2.1/2.2/2.21)

V Camera specification files (*.MRK)

These are definition files used when in camera specification mode. An “AUTOPRINT.MRK” file whose full path name is no longer than 32 characters is valid.

Note, however, any file that is saved in the following directories or their sub-directories cannot be included as files to be printed.

V Directories containing system properties or hidden properties V Directories that contain any double-byte characters in the directory name V “RECYCLED” : Windows directory for deleted files V “PREVIEW” : Directories containing CASIO’s DSC thumbnail images V “SCENE” : Directories containing data for CASIO’s DSC Best Shot

function

V “MSSONY” : Directories containing SONY’s DSC e-mail image data, voice

memos, video files, or non-compressed images

1.5.1.4 Valid image size

The maximum image size handled by this unit is:

V Horizontal : 80 ≤ X ≤ 4600 (pixels) V Vertical : 80 ≤ Y ≤ 4600 (pixels)

1.5.1.5 Maximum number of photo data files

This unit can handle up to 999 photo data files. If the amount of photo data to be recorded exceeds the capacity of one memory card, this unit uses file sorting rules to sort the photo data into valid photo data in frames numbered from 1 to 999. Although it is possible to print photo data files with frame numbers over 999 that have been specified for printing by camera specification files, the maximum number of frames that can be specified is 999 frames. If you insert a memory card that contains over 999 photo data files, only files up to 999 will be printed by the “Print All” or “Print index sheet” functions.

1.5.1.6 Thumbnail image data

This unit handles thumbnail image data in the DCF Version 1.0 or 2.0 format (Exif format, 160 x 120 pixels). During this unit’s Index sheet and memory card printing modes, the layout is 80 thumbnails per sheet (when using plain paper or special paper in high-speed print mode).

1.5.1.7 File sorting

This unit stores all photo data files in the memory, using the photo data files’ full-path file names (for example, “\DCIM\100EPSON\EPSN0000.JPG”), and assigned photo frame numbers. Since photo frame numbers are assigned based on this unit’s own proprietary file sorting rules, the assigned frame numbers do not necessarily match those indicated by digital cameras.

PRODUCT DESCRIPTION Memory Card Print 31

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.1.8 File sorting rules

This unit sorts photo data files based on the following prioritization rule.

T File name is sorted in ASCII order as full path name.

NOTE: Sorting results are not guaranteed if two files have matching full-path file

names. (Matching full-path file names are not allowed under the DOS specification.)

1.5.1.9 Rules for acquisition of date/time data

The following priorities are used to fetch date and time information from photo data files.

1. Date/time data that complies with the standard format (Exif) for digital cameras

2. Date/time data that complies with the DOS standard file system (file time stamps)

3. Fixed values (01/01/1970, 00:00:00)

Note that the date/time data assigned to individual photo data files does not necessarily match the date/time when the photo was actually taken. The photo date/time may be modified due to the digital camera’s calendar settings (presence/absence of functions, incorrect date/time settings, etc.), processing of the photo data after the photo was taken, or subsequent saving of data. In such cases, this unit performs the relevant processing based on the most recently modified date/time data.

1.5.2 Functions

1.5.2.1 List of functions

The memory card print menu and its settings are listed in the following table. The values shown in this table indicate the total number of options and the number of pages or copies that can be printed consecutively.

Table 1-31. List of functions

Memory card

printing

Print index sheet Print Index Sheet None Plain Paper 1 1

Print from index sheet

Print all images Print All / DPOF

DPOF * Print All / DPOF

Note "*": It is available only DPOF file exists in the memory card. Note : “Print index sheet” will be selected as default function of Memory Card Print. But when

DPOF file exists in the memory card, “Print All / DPOF” will be selected as default and DPOF print can be done easily.

Mode selection Layout Paper type

Print From Index Sheet

• Standard

• Border free

• Standard

• Border free

• Standard

• Border free

• Plain Paper

• Photo Paper

• Plain Paper

• Photo Paper

• Plain Paper

• Photo Paper

Paper

Page/copies

size

(according to marking)

2 1

2 1 to 99

1 to 3

1.5.1.10 Number of sheets which can be printed in total

Printing sum total number of sheets presupposes that it is possible to 999 sheets. Moreover, the printing sum total number of sheets per sheet is possible to 99 sheets.

PRODUCT DESCRIPTION Memory Card Print 32

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.2.2 Memory card printing mode

V Print index sheet printing

This function prints thumbnail images (stored in the memory card) onto an Index Sheet (form) that is marked for selecting images. The combinations of paper types and paper sizes are fixed as shown in the right table.

V Print from index sheet printing

This function prints selected images onto the sheet output by index sheet printing.

V Print all images

This function prints all of the image files stored in the memory card. As shown in the right table, the number of printed pages depends on the number of copies to be printed.

V DPOF printing

In this mode, the photo frame numbers previously specified via the camera are printed in the number of pages specified via the camera. Only the paper type and layout are specified on the printer side. If the layout assigned multiple photos per output sheet, photos that have different frame sizes are automatically assigned in the specified number of pages in numerical order (of the specified photo frame numbers). If index print mode was set via the camera, this unit will print in DPOF index layout. (When in DPOF print mode, the mode cannot be switched by writing the print file specification from the host after inserting the memory card.)

Table 1-32. Memory card printing mode

Setting Memory card printing mode Description Option, setting range, etc.

Fixed in combination with paper type and paper size (refer to

“1.5.4 Layout and Paper Type, Paper Size” (p.37))

Plain Paper or Photo Paper

A4 or 10x15

Fixed as 1 page (can vary according to the number of image files)

1 to 3 (set by the marking to the index sheet)

The number of copies specified via the camera is used. The setting range is 1 to 99 copies (default is 1 copy).

Prints it by the quality of 360 x 720 dpi of Plain Paper. Only the Color print is supported.

Fixed according to paper type (refer to “1.5.9 Relation

between Paper Type and Quality” (p.41))

Layout (no menu)

Paper type

Paper size

Pages/ copies

Quality

• Print from index sheet printing

• Print all images

• DPOF printing Print index sheet printing Fixed Plain Paper

• Print from index sheet printing

• Print all images

• DPOF printing Print index sheet printing Fixed A4

• Print from index sheet printing

• Print all images

• DPOF printing

Print index sheet printing Fixed

Print from index sheet printing

Print all images

DPOF printing

Print index sheet printing Fixed

• Print from index sheet printing

• Print all images

• DPOF printing

Sets print

layout

Sets paper

type

Sets paper

size

Sets number

of printout

Sets number

of printout

Sets number

of printout

Sets print

quality

PRODUCT DESCRIPTION Memory Card Print 33

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.3 Index Sheet

V 30 thumbnail images are assigned per index sheet. V There are 3 marking areas for each thumbnail and you can set the number of

copies up to 3.

V “Paper type” and “Paper size” can be set from the operation panel. V The layout is fixed according to the paper type and it is not indicated on the sheet.

(Refer to “1.5.4 Layout and Paper Type, Paper Size” (p.37))

V Images are arranged in the Index sheet in ascending order (of image file number).

(Refer to “1.5.1.7 File sorting” (p.31) and “1.5.1.8 File sorting rules” (p.32))

V Index sheet will be printed from the last page, in descending order. (The sheet

containing first thumbnail comes top of printouts.)

V The mode transition may occur from “Print index sheet” to “Print from index

sheet” when the “Print index sheet” completes successfully.

Figure 1-13. Sample of index sheet

PRODUCT DESCRIPTION Memory Card Print 34

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.3.1 Rules for scanning index sheets (TBD)

V Index sheet scan range

T Set index sheet in scanner

• Place the side to be scanned face down relative to the scan bed, as described

below. Align the corner of the sheet to the upper left origin point and make sure the sheet is straight. Angled setting of the sheet is allowed as long as the sheet remains within the scan bed’s scan range (the maximum angle on the scan bed is about 2.8°).

• The cover must be closed on the original to enable scanning. (This is to

prevent any shifting of the position marks while scanning).

• Do not use paper that allows images to “bleed through” to the rear side.

(This is to prevent empty bubbles from being filled in by “bleed-through”.)

T Set scan area and original

Table 1-33. Set scan area and original

(readable width)

216mm (8.5") 1.5mm ± 1mm 297mm (11.7") 1.5mm ± 1mm

Place the Index Sheet face down with its top edge aligned to the left edge of the scan bed, and with the corner of the paper set to the original’s top left position.

(out-of-range left margin)

OLM

(readable length)

(out-of-range top margin)

OLM

OTM

Original’s top left alignment position

First pixel

OTM

Figure 1-14. Set scan area and original

Scan direction

Index sheet

Operator’s side

Set original face down, with top aligned in the direction of the origin.

Scan bed

Scan area

PRODUCT DESCRIPTION Memory Card Print 35

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Basic specifications for scanning of index sheets

T Scanning rules for index sheet

Check if following symbols are found or not.

Table 1-34. Symbols check

No. Symbols Usage

Left top triangle (1) Left reference position

Right top “O” of EPSON (1) Right reference position

Right top block codes (36) Sheet information (memory card ID, page)

Optional mark of “ALL” (1)

Image marks (3x30)

Determines whether or not to print all images in the sheet

Determines whether or not to print each image up to 3 copies. Left most is 1, center is 2 and right most is 3.

• When two or three marks of one image are filled, larger number will be used

for the number of copies. (ex. 1 and 3 are filled, number of copies is 3.)

• When the optional “ALL” mark is filled, all images in the sheet will be

printed one by one regardless of each image mark is filled or not.

• Index sheet error will be caused when any of image mark or “ALL” mark is

not filled.

• Index sheet error will be caused when “Left top triangle”, “Right top

EPSON” and “Block codes” are not found correctly due to something like smear.

• Place the index sheet so that the “Left top triangle” can meet the left top

corner of the scanner.

Figure 1-15. Symbols check

OK patterns

1 2 3 1 2 3

• More than half part of the mark should be filled.

• Outside of each mark should not be filled excessively.

T Errors during scanning or printing of index sheets

NG patterns

• Stops scanning and returns to the menu screen if the card is removed while

an index sheet is being scanned or printed.

• Index sheet error (No index sheet) is displayed if the sheet cannot be

scanned because it is dirty, set backwards, etc.

• Index sheet error (Incorrect marking) is displayed if the image bubbles

1 2 3 1 2 3

Figure 1-16. OK/NG mark samples

cannot be read because they are not filled in correctly.

• Index sheet error (Incorrect card) is displayed if, after printing an index

sheet, you try to print from a non-matching memory card, such as a different (replacement) card or a re-edited version of the same card.

PRODUCT DESCRIPTION Memory Card Print 36

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.4 Layout and Paper Type, Paper Size

The layout/paper type and size combinations that can be selected are listed below.

Table 1-35. Layout and Paper Type, Paper Size

Layout Paper type Paper size Description

Border free Photo Paper A4, 10x15

1-up with borders Plain Paper A4, 10x15

20-up — 10x15

80-up — A4

Prints with no margins along top, bottom and both sides

Prints with 3mm margins along top, bottom and both sides

Prints 20 frames per page, laid out in 5 columns and 4 rows (For DPOF index print only)

Prints 80 frames per page, laid out in 10 columns and 8 rows (For DPOF index print only)

1.5.5 Options

The functions below will be available by marking to options on the index sheet. V Prints all photos one by one shown on the index sheet.

1.5.6 Trimming Function

A trimming function is provided as a means of coordinating photo data with the types of photo frames handled by this unit. This function is always activated so that printing photo data is in shapes that fit these photo frames. This function is described briefly below. The printed photo frame and the photo to be printed are matched in length along one side and the photo is resized along the perpendicular side to fit the frame on that side. Any part of the photo that does not fit within the photo frame is trimmed away (not printed).

V The image below shows an example in which the photo data is aligned vertically

with the photo frame.

These parts are trimmed.

V The image below shows an example in which the photo data is aligned

horizontally with the photo frame.

Photo frame (print area)

These parts are trimmed.

Figure 1-17. Trimming Function

PRODUCT DESCRIPTION Memory Card Print 37

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.7 Assignment Rules for Photo Frame Numbers and Rotation

The rules concerning photo frame numbers that are referenced when assigning photos are described below. The numbers shown in each diagram and photo frame below indicate the photo frame numbers used for various types of layout. The direction of the number shown in each photo frame matches the direction of the printed photo to which the horizontal photo data was allocated. When there are more pixels vertically than horizontally, the vertical photo data is allocated instead, and the number shown in the figure below is then rotated 90° before being printed. In Index printing mode, the numbers are printed as they are shown below, regardless of the shape of the photo data. However, when the photo data has an equal number of pixels vertically and horizontally the photos are printed without rotation, regardless of the layout.

NOTE: The vertical photo data refers to when the photo data file itself is set for a

vertical (portrait) orientation. Photo data is defined as the vertical photo data if it is taken by a digital camera with a portrait position detecting function.)

Top edge

<Border-free> <1 sheet with borders>

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24

25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56

57 58 59 60 61 62 63 64

<20-up>

65 66 67 68 69 70 71 72

73 74 75 76 77 78 79 80

<80-up>

Figure 1-18. Assignment Rules for Photo Frame Numbers and Rotation

PRODUCT DESCRIPTION Memory Card Print 38

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.8 Layout Drawings

1.5.8.1 Border free

C A

Paper

FEG

Printable

area

1.5.8.2 1-up with borders

Figure 1-20. 1-up with borders

A C

Printable area

FEG

Figure 1-19. Border free

Table 1-36. Border free (unit: mm)

Paper type A B C D E F G H

A4 210.00 297.00 215.08 305.04 2.54 2.54 2.96 5.08

10x15 101.60 152.40 106.68 160.53 2.54 2.54 2.96 5.08

Paper type A B C D E F G H

A4 210.00 297.00 204.00 291.00 3.00 3.00 3.00 3.00

10x15 101.60 152.40 95.60 146.40 3.00 3.00 3.00 3.00

Table 1-37. 1-up with borders (unit: mm)

PRODUCT DESCRIPTION Memory Card Print 39

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.8.3 20-up

A K

I I I C

Figure 1-21. 20-up

Table 1-38. 20-up (unit: mm)

Paper type A B C D E F G H I J K L

10x15 101.60 152.40 20.00 20.00 6.10 6.30 19.80 20.30 3.00 3.00 89.30 112.30

FEG

J D

1.5.8.4 80-up

KGL

F D

Figure 1-22. 80-up

Table 1-39. 80-up (unit: mm)

Paper type A B C D E F G H I

A4 210.00 297.00 20.00 20.00 2.00 5.00 18.00 62.00 106.00

Paper type J K L M N O P Q

A4 150.00 18.00 26.00 76.00 126.00 176.00 226.00 26.00

E C

PRODUCT DESCRIPTION Memory Card Print 40

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.5.9 Relation between Paper Type and Quality

In this mode, printing is always in color (CMYK), not black ink only.

Table 1-40. Relation between Paper Type and Quality

Paper type

Plain Paper 720 x 720 VSD3 On On LUT4 Photo Paper 720 x 1440 CNC VSD3 On On LUT10 Index sheet

(Plain Paper)

Print resolution

(H x V dpi)

360 x 360 VSD1 On On LUT3

Dot size MW High speed LUT

PRODUCT DESCRIPTION Memory Card Print 41

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6 Control Panel

1.6.1 Buttons

The control panel contains following 10 buttons, which are used to set and execute various operations. All of them are non-lock type buttons.

Table 1-41. Buttons

Button Function

Power Button Execute turning on/off this unit. Ink Button Execute exchanging ink cartridges or head cleaning.

Memory Card Button

Copy Button

Paper Type Button Select paper type. Paper Size Button Select paper size. Fit to Page Button Alternate zoom of “Fit to page” and default (actual; 100%). B&W Start Button * Start monochrome copy. Color Start Button Start card print or color copy. Stop Button Stop job of copying or printing or sometimes work as shift button.

Note "*": B&W means “Black and White”.

Refer to “1.6.3.1 Stand-alone Copy / Memory Card Print” (p.44) for details about each button.

Make transition from “Copy mode” to “Memory Card mode” and selects one of card print mode.

Make transition from “Memory Card mode” to “Copy mode” and sets number of copies.

1.6.2 Indicators

The control panel contains following 7-segment LED and 11 LEDs, which are used to indicate various status.

LED Function

Power LED [Green] * Error LED [Red] Light or blink while some error or warning is occurring.

Ink LED [Red]

Memory Card LED 1-3

1st[Green] Print Index Sheet

2nd[Green] Print From Index Sheet 3rd[Green] *

7-seg. LED *

Decimal Point LED

Paper Type LED 1,2 Light one of them showing which paper type below is selected.

Paper Size LED 1,2 Light one of them showing which paper size below is selected.

Fit to Page LED [Green]

Card Access LED [Green] *

Note *1: When Standalone Copy mode is selected, those LEDs are turned off.

*2: When DPOF printing is proceeding, this LED is blinking. *3: When Memory Card Print mode is selected, those LEDs are turned off. *4: All LEDs except for Power LED will be turned off while printing or scanning by PC. *5: This LED is located near the card slot, not on the control panel.

1st[Green] Plain Paper

2nd[Green] Photo Paper

1st[Green] A4

2nd[Green]

Table 1-42. Indicators

Light at stand-by. Blink while some operation is proceeding.

Light when some ink is out. Blink when some ink is near empty or in the ink cartridge exchanging procedure.

Light one of them while some memory card print function showing below is ready or proceeding.

Print All / DPOF Indicate number of copies, or some error codes in error status.

Blinks slowly in low power panel status.

10x15

Light when “Fit to Page” function is effective in copy mode.

Light when available memory card is in a slot. Blink when accessing to the card.

PRODUCT DESCRIPTION Control Panel 42

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Power Button

Ink Button

Memory Card

Button

Copy Button

Paper Type Button

Paper Size Button

Fit to Page Button

B&W Start

Button

Color Start

Button

Stop Button

Power LED

Error LED Ink LED

Memory Card LED 1-3

7-seg. LED

Paper Type LED 1,2

Paper Size LED 1,2

Fit to Page LED

Figure 1-23. Control panel

PRODUCT DESCRIPTION Control Panel 43

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6.3 Operations

1.6.3.1 Stand-alone Copy / Memory Card Print

The functions of this unit caused by each button in stand-alone copy mode or memory card print mode are described in the following table.

Table 1-43. Operations

Button

Power Button • Turn on or off this unit.

• Start or advance ink cartridge (I/C) exchanging procedure.

V Case

T [All inks are enough.] Move carriage (CR) to I/C exchange position.

Ink Button

Ink Button (Holding over 3 sec.)

Memory Card Button

Copy Button

T [Ink low, Ink out, Without I/C error] Move CR to each color’s ink check position if that color’s I/C is ink low or ink out or without I/C. CR moves in the order of Cyan, Magenta, Yellow,

T [CR is in some color’s ink check position.]Move CR to next color’s ink check position or I/C exchange position. T [C R is in I/C exchange position.] Move CR to standby position.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status except for ink out error, paper out error, memory card error, index sheet error, PG error.

• Start cleaning head procedure.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status except for paper out error, memory card error, index sheet error, PG error.

• Make transition from “Stand-alone copy” mode to “Memory card print” mode and select and light “Print Index Sheet”, or “Print All / DPOF” if DPOF file exists in the card.

• Turn off both 7-seg. LED and “Fit to Page” LED.

• Select “Plain Paper” and “A4”

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status except for memory card error, index sheet error, PG error.

• Set number of copies incrementally and indicate it on 7-seg. LED.

V Case

T [1 to 8] Add 1 and the number becomes 2 to 9. T [9] Indicate “–”, which means 100 copies. T [–] Reset to “1”.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status.

• Number decreases one by one after 1 copy is finished and return to the beginning number when all copies are finished. When “–” is indicated, number of copies decreases internally but no change can be seen on 7-seg. LED.

Stand-alone Copy Memory Card Print

Black.

Function

• Change to next “Memory card print” function.

V Case

T [Print Index Sheet] Change to “Print From Index Sheet”, and change paper type and

paper size to the one last set in “Print From Index Sheet” or “Print All / DPOF”.

T [Print From Index Sheet] Change to “Print All / DPOF”. T [Print All / DPOF] Change to “Print Index Sheet”, and change paper type and paper

size to “Plain Paper” and “A4”.

• Make transition from “Memory card print” mode to “Stand-alone copy” mode and set number of copies to “1”.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status except for memory card error, index sheet error, PG error.

PRODUCT DESCRIPTION Control Panel 44

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 1-43. Operations

Button

Paper Type Button

Paper Size Button

Fit to Page Button

B&W Start Button

Color Start Button

Stop Button

B&W Start Button with Stop Button

Color Start Button with Stop Button

Stand-alone Copy Memory Card Print

• Alternate paper type of “Plain Paper” and “Photo Paper”. • Alternate paper type of “Plain Paper” and “Photo Paper” which will be used in “Print From Index

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status.

• Alternate paper size of “A4” and “10x15”. • Alternate paper size of “A4” and “10x15” which will be used in “Print From Index Sheet” or

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status.

• Alternate “Fit to Page” status and turn on or off the “Fit to Page” LED.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in error status.

• Start monochrome copy.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in ink out error.

• Move to PG error status when platen gap is large. But when this button is pressed again in that status, that print will start.

• Load paper in paper out error or double feed error and eject paper in paper jam error.

• Start color copy. • Start memory card print.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in ink out error.

• Load paper in paper out error or double feed error and eject paper in paper jam error.

• Move to PG error status when platen gap is large. But when this button is pressed again in that status, that print will start.

• Stop job of copying or printing and reset the number of copies to the beginning. • Stop job of copying or printing.

• Eject paper when paper exists or may exist in the paper path.

• Invalid while PC scanning, cleaning head and exchanging I/C.

• Clear some of error status.

• Start draft monochrome copy when “Plain Paper” and “A4” are selected.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in ink out error, or without “A4” is selected.

• Move to PG error status when platen gap is large.

• Start draft color copy when “Plain Paper” and “A4” are selected.

• Invalid while printing, scanning, cleaning head, stopping printing or copying, exchanging I/C, or in ink out error, or without “A4” is selected.

• Move to PG error status when platen gap is large.

Function

Sheet” or “Print All / DPOF”.

• Invalid in “Print Index Sheet”, and then it is fixed to “Plain Paper”.

“Print All / DPOF”.

• Invalid in “Print Index Sheet”, and then it is fixed to “A4”.

• Invalid. “Fit to Page” LED is always turned off in this mode.

• Invalid but for clearing some error status.

• Clear PG error and start print that was suspended by PG error.

• Clear index sheet error and start “Print from index sheet”.

• Make transition from “Print Index Sheet” to “Print From Index Sheet” when “Print Index Sheet” finishes successfully, without any error or “STOP” operation.

• Invalid with no card in slots.

• Move to memory card error status when incompatible memory card is inserted or no images found in the card.

—

PRODUCT DESCRIPTION Control Panel 45

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6.3.2 Memory Card Insertion/Ejection

The functions of this unit caused by memory card insertion or ejection are described in the following table.

Table 1-44. Memory Card Insertion/Ejection

Action Function

• Recognize the card and light Card Access LED if it is right.

Card Insertion

Card Ejection

• The LED blinks while memory access occurs to the memory card.

• Also the Power LED blinks during the card recognition.

• Return from the low power panel mode.

• Turn off Card Access LED.

• Stop print job while memory card print is in process and eject paper.

• Clear memory card error if memory card is wrong.

1.6.3.3 Low Power Panel Mode

Without any panel operation for 15 minutes while the printer and scanner unit are in standby status, this unit moves into the low power panel mode in which power consumption for the panel decreases. This unit recovers from that mode by pushing any button but Power Button or printing/ scanning by PC. This unit is turned off by pushing Power Button in that mode.

Table 1-45. Low Power Panel Mode

Action Function

• Turn off all LEDs except for Power LED and Card Access LED.

• Blink Decimal Point LED slowly. Transition to low power mode

Recovery from low power mode

• No move in error status except for memory card error, inde x sheet error

and PG error.

• Inserting or ejecting of memory card or accessing it by PC has no effect

on low power mode.

• Recall the panel status as that before moving to low power panel mode.

• Inserting or ejecting of memory card or accessing it by PC has no effect

on low power mode.

1.6.3.4 Adjust lever function

Table 1-46. Adjust lever function

Adjust lever

status

PG open (Displayed “H”)

PG close (Displayed “L”)

• “H” will be displayed with 7-seg. LED for about 3 seconds just after the adjust lever is changed to “H: Envelope” position.

• “L” will be displayed with 7-seg. LED for about 3 seconds just after the adjust lever is changed to “L: Cut sheet” position.

• Clear the PG error and print job suspended by PG error when the adjust lever is changed to “L: Cut sheet position” in the PG error status.

Function

1.6.3.5 Nozzle check pattern print

Nozzle check pattern can be printed only with this unit. Left ink quantity of each color is also printed by the unit of 10%. To activate this function, turn on this unit while depressing Ink Button. After printing the pattern, this unit moves to ordinary standby status. The example of nozzle check pattern is below.

ROM

version

1 11 21 31 41 51 61 71 81

10 20 30 40 50 60 70 80 90

360dpi VSD Large dot

32dots

0.212mm (1/120inch)

1 11 21 31 41 51 61 71 81

Q-PIT version

Remaining ink

quantity

10 20 30 40 50 60 70 80 90

Figure 1-24. Nozzle check pattern

PRODUCT DESCRIPTION Control Panel 46

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6.3.6 Head alignment adjustment

Alignment adjustments can be made to maintain high print quality during bi-directional printing. This function can be used for basic adjustments. For more precise adjustments, we recommend using the head alignment utility that is installed in the connected computer. To activate this function, turn on this unit while depressing Copy mode button. The pattern will be printed which shows the head alignment at that time, and adjustment can be done regarding to that pattern.

V Procedure

T Preparation

1. Set A4 sized paper to the sheet feeder.

2. Set PG position is close (L).

T Print Pattern

1. Turn on this unit while depressing Copy button.

2. Alignment adjustment pattern is printed.

T Adjust VSD1 black parameter

1. Select the most appropriate value regarding the printed pattern #1 by pressing Copy button. The initial value is “5” indicated on 7-seg. LED and by pressing Copy button, the value will change from “1” upto “9” incrementally and cyclically.

2. Press B&W Start button to terminate VSD1 black parameter adjustment. Just press that button as well when the initial value is the most appropriate.

T Adjust VSD3 black parameter

1. Select the most appropriate value regarding the printed pattern #2 by pressing Copy button. The initial value is “5” indicated on 7-seg. LED and by pressing Copy button, the value will change from “1” upto “9” incrementally and cyclically.

2. Press B&W Start button to terminate VSD3 black parameter adjustment. Just press that button as well when the initial value is the most appropriate.

T Adjust VSD1 color parameter

2. Press B&W Start button to terminate VSD1 color parameter adjustment. Just press that button as well when the initial value is the most appropriate.

T Adjust VSD3 color parameter

2. Press B&W Start button to terminate VSD3 color parameter adjustment. Just press that button as well when the initial value is the most appropriate.

T Adjust Eco color parameter

2. Press B&W Start button to terminate eco color parameter adjustment. Just press that button as well when the initial value is the most appropriate.

3. The Eco black adjustment parameter is undergone a change of the color adjustment.

T Termination

1. Both all parameter adjustments are terminated successfully, the adjusted value will be memorized and this unit will be turned off automatically. The adjusted value will be effective from next turning on.

2. To indicate the adjusted values are memorized, all the LEDs except for Card Access LED will be flashing once.

PRODUCT DESCRIPTION Control Panel 47

EPSON Stylus Photo RX420/RX425/RX430 Revision A

C H E C K

P O I N T

T The adjustment procedure will be terminated unsuccessfully in

the following cases and no adjustment will be done.

1. Some error like Paper Out, Paper Jam, PG Open has occurred.

2. The procedure is terminated by pressing Stop button.

3. The unit is turned off. When Paper Out has occurred, the procedure can restart from “Print Pattern” by pressing Color Start button. The error should be removed in advance.

T Ink maintenance operation like “exchanging I/C” or “cleaning

head” can not be done in this mode.

T This unit will be turned off automatically when the procedure is

terminated by pressing Stop button and when PG open error has occurred and then the adjust lever has been set to close position.

PRODUCT DESCRIPTION Control Panel 48

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6.4 Printer Condition and Panel Status

Note : “–” : Don’t care

Blink : 0.5sec. On + 0.5sec. Off repetition Blink 2 : 0.2sec. On + 0.2sec. Off + 0.2sec. On + 0.4sec. Off repetition Blink 3 : Blink on and off along with access to a memory card. Fast blink : 0.2sec. On + 0.2sec. Off repetition Slow blink: 2.0sec. On + 2.0sec. Off repetition

Note *1: When the setting is “On”.

*2: After finishing copying, the counter returns to the preset number of copies.

Table 1-47. Printer Condition and Panel Status

Indicators

Printer

status

Power on (Normal ready mode)

Card printing mode (Print All/DPOF)

Card printing mode (Index Sheet scanning & printing)

Power LED Error LED Ink LED

Memory Card LED

1 2 3 1 2 1 2

On — — — — — — — — — — — — 24

— — — — — On Off Selected type is On Selected size is On Off —

— — — — On — Off Selected type is On Selected size is On Off —

7-seg.

LED

Paper Type LED Paper Size LED

Fit to Page

LED

Card Access

LED

Priority

Card printing mode (Print index sheet)

Copying mode — — — Off Off Off “1~9” or “–” Selected type is On Selected size is On On * Ink low — — Blink — — — — — — — — — — 22 PG open

(Displayed “H”) PG close

(Displayed “L”) PG error — Blink 2 — — — — “H” blink 2 — — — — — — Index sheet error

(Incorrect marking) Index sheet error

(Incorrect card)

— — — On — — Off On — On — Off —

— — — — — —

— Blink 2 Off — Blink 2 — “3” blink 2 — — — — — — 20

— Blink 2 Off — Blink 2 — “4” blink 2 — — — — — — 19

“H” blink 2

(3sec.)

“L” blink 2

(3sec.)

— — — — — —

—

PRODUCT DESCRIPTION Control Panel 49

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 1-47. Printer Condition and Panel Status

Indicators

Printer

status

Index sheet error (No index sheet)

Memory card error (Incompatible memory card)

Power LED Error LED Ink LED

Memory Card LED

1 2 3 1 2 1 2

— Blink 2 Off — Blink 2 — “2” blink 2 — — — — — — 18

— Blink 2 Off Blink 2 Blink 2 Blink 2 “1” blink 2 — — Off Off Off — 17

7-seg.

LED

Paper Type LED Paper Size LED

Fit to Page

LED

Card Access

LED

Priority

Power on (Data Processing)

Reading a memory card (recognizing image data) is in progress

Stopping printing and cancelling the print job

The scanner is operating by a computer

Printing by a computer Blink — — Off Off Off Off Off Off Off Off Off —

Copying Blink — — Off Off Off

Card printing (DPOF) Blink — — — — On Off Selected type is On Selected size is On Off — Card printing (Print All) Blink — — — — On Off Selected type is On Selected size is On Off — Card printing

(Index Sheet scanning & printing)

Card printing (Print index sheet)

Double feed — On Off — — — — — — — — — — Paper out — On Off — — — — — — — — — —

Blink — — — — — — — — — — — — 16

Blink — — — — — — — — — — — — 15

Blink — — — — — — — — — — — — 14

Blink — — Off Off Off Off Off Off Off Off Off —

Number of

copies

remaining*

Blink — — — On — Off Selected type is On Selected size is On Off —

Blink — — On — — Off On — On — Off —

Selected type is On Selected size is On On *

—

Ink Sequence Processing Blink — — — — — — — — — — — — 10 Ink Cartridge Change

Mode

Blink 2 Off Blink 2 — — — — — — — — — — 9

PRODUCT DESCRIPTION Control Panel 50

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 1-47. Printer Condition and Panel Status

Indicators

Printer

status

Ink out or No Ink cartridge

CSIC error — Off On — — — — — — — — — — Incorrect I/C — Off On — — — — — — — — — — Paper jam — Blink Off — — — — — — — — — — 7 Reset request/Stop

request/Job cancel request/Various setting memory request

Power LED Error LED Ink LED

— Off On — — — — — — — — — —

On (1sec.) On (1sec.) On (1sec.) On (1sec.) On (1sec.) On (1sec.) Off (1sec .) On (1sec.) On (1sec.) On (1sec.) On (1sec.) On (1sec.) — 6

Memory Card LED

1 2 3 1 2 1 2

7-seg.

LED

Paper Type LED Paper Size LED

Fit to Page

LED

Card Access

LED

Priority

Power on (Initializing operation)

Maintenance request Blink On On Blink Blink Blink “E” blink Blink Blink Blink Blink Blink — 4 Fatal error (Mechanism) Blink Blink Blink Blink Blink Blink “E” blink Blink Blink Blink Blink Blink — 3 Fatal error (System) Fa st bl ink Fast blink Fast blink Fast blink Fast blink Fast blink Fast “E” blink Fast blink Fast blink Fast blink Fast blink Fast blink — 2 Power off

(Processing termination) No Memory card — — — — — — — — — — — — Off — Memory card Processing — — — — — — — — — — — — On — Reading a memory card — — — — — — — — — — — — Blink 3 — Power on (Low Power

Panel Mode)

Blink — — — — — — — — — — — — 5

Fast blink Off Off Off Off Off Off Off Off Off Off Off — 1

On Off Off Off Off Off

Blink slowly only for D.P.

Off Off Off Off Off — —

PRODUCT DESCRIPTION Control Panel 51

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6.4.1 Error Status

V Ink out error

When the printer runs out the most amount of the ink of any one color, it indicates ink low and keeps printing. When the printer runs out the whole ink of any color, it stops printing and indicates Ink out error. User is then requested to install a new ink cartridge in this state.

V Paper out error

When the printer fails to load a sheet, it goes into a paper out error.

V Paper jam error

When the printer fails to eject a sheet, it goes into a paper jam error.

V Double feed error

The error is applied to the Duplex Printing mode. It occurs when a blank sheet of paper is ejected (because several sheets has been fed at a time), or when a paper size longer than the specified size is detected at the time of ejecting.

V No ink cartridge

When the printer detects that ink cartridge comes off, or failed to read or write CSIC data, it goes into this error mode.

V Maintenance request

When the total amount of ink wasted through cleanings and flushing reaches to the limit, printer indicates this error and stops. In such a case, the absorber in the printer enclosure needs to be replaced with new one by a service person.

V Fatal error

Carriage control error.

1.6.5 Memory Functions

1.6.5.1 Parameters that are retained while mode transition

The following parameters are retained for each mode while the mode transition from “Copy” mode to “Memory Card Print” mode or vice versa.

V “Paper Type” and “Paper Size” are retained for each mode as default. V Zoom is retained for “Copy” mode as default.

NOTE: Paper Type and Paper Size are commonly used in “Print From Index

Sheet” and “Print All / DPOF”.

1.6.5.2 Parameters that are retained when power is turned off

The following parameters are retained when the unit’s power is off. They are listed along with the corresponding memory functions in the table below.

V Copy mode is selected when this unit is turned on apart from the mode when it was

turned off before.

V Paper Type and Paper Size are retained for each mode as default. V Zoom is retained for copy mode as default.

Table 1-48.

Mode Parameter retained in memory Factory setting

Paper Type Plain Paper

Copy

Zoom (The status of Fit to Page) 100% (OFF)

Memory Card Print

Paper Size A4

Paper Type Photo Paper

Paper Size 10x15

PRODUCT DESCRIPTION Control Panel 52

EPSON Stylus Photo RX420/RX425/RX430 Revision A

1.6.6 Printer Initialization

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

1. Power-on 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 This printer is initialized when turning the printer power on again within 10 seconds from last power off. When printer is initialized, the following actions are performed. (a) Cap the printer head (b) Eject a paper (c) Clears input data buffer (d) Clears print buffer (e) 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. Power-on initialization except I/F The printer recognized the IEEE 1284.4 “rs” command. When printer is initialized, the following action is performed. (a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets default values except I/F

PRODUCT DESCRIPTION Control Panel 53

OPERATING PRINCIPLES

CHAPTER

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.1 Overview

This section describes the operating principles of the Printer Mechanism, Scanner Mechanism and Electrical Circuit Boards.

V Main Board

T C579 Main Board

V Power Supply Board

T C571 PSB/PSE Board

V Panel Board

T C571 PNL Board

2.2 Printer Mechanism

2.2.1 Printer Mechanism

Stylus Photo RX420/RX425/RX430 have basically this same printer mechanism configuration as the Stylus CX4500/CX4600. This printer consists of the Print Head, Carriage Mechanism, Paper Loading Mechanism, Paper Feeding Mechanism, Ink System. Like the previous printers, the Stylus Photo RX420/RX425/RX430 is equipped with two DC motors; one for the Paper Loading/Feeding Mechanism and the Pump Mechanism with the CR Lock Mechanism, and one for the CR Mechanism. The ASF Unit for the Paper Loading Mechanism uses rear entry front eject system. The Paper Feeding Mechanism uses the LD Roller and Retard Roller to feed paper to the Printer Mechanism in the same way as previous printers.

PG Sensor

PF Roller

Star Wheel

PW Sensor

Carriage Unit

EJ Roller

Change Lever

Cap Unit

PF ScalePF Encoder Sensor

CR Motor

PF Motor

Timing Belt

CR Encoder Sensor

LD Roller Retard Roller

Compression Spring

PE Sensor

Clutch Mechanism

Pump Unit

Figure 2-1. Printer Mechanism Block Diagram

OPERATING PRINCIPLES Overview 55

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.2 Print Head

The Print Head is the same D4-CHIPS type as the previous SPC (Stylus CX4500/

4600), and makes it possible to perform economy dot printing and variable dot

printing. The Print Head nozzle configuration is as follows.

V Nozzle layout

T Black : 90 nozzles x 1 row T Color : 90 nozzles x 3 row/color (Cyan, Magenta, Yellow)

The nozzle layout when viewed from the back surface of the Print Head is shown below.

8.467

(120/360inch)

#C90

#B90

#C89

#B89

#C88

#B88

#B3 #B2 #B1

#C3 #C2 #C1

Paper Feed Direction

2.822

(40/360inch)

#A90 #A89 #A88

A row B row C row D row

#A3 #A2 #A1

Carriage Moving Direction

Figure 2-2. Nozzle Layout

The Print Head has the Electric Poles (CSIC Connectors) to store the ink consumption amount data into the CSIC chip mounted on the Ink Cartridge. By storing the ink consumption amount data, this printer can detect the ink consumption status, such as Ink Low/Out condition.

2.822

(40/360inch)

#D90 #D89

#D88

#D3 #D2

#D1

BlackCyan Magenta Yellow

0.1411

0.007055 (2/360inch)

(1/360inch)

0.2117 (3/360inch)

The basic operating principles of the Print Head, which plays a major role in printing, are the same as the previous SPC (Stylus CX4500/CX4600); on-demand method which uses PZT (Piezo Electric Element). In order to uniform the ejected ink amount, the Print Head has its own Head ID (13-digits code for this Print Head for Stylus Photo RX420/RX425/RX430) which adjusts PZT voltage drive features. So, you are required to store the Head ID pasted on the Print Head into the EEPROM by using the Adjustment Program when replacing the Print Head, the Main Board Unit, the Printer Mechanism with new one. (Note: there are no resistor arrays to determine the Head ID on the Main Board.) And then, based on the stored Head ID into the EEPROM, the Main Board generates appropriate PZT drive voltage.

Following explains the basic components for the Print Head. V PZT

PZT is an abbreviation of Piezo Electric Element. Based on the drive waveform generated on the Main Board, the PZT selected by the nozzle selector IC on the Print Head pushes the top of the ink cavity, which has ink stored, to eject the ink from each nozzle on the nozzle plate.

V Electric poles for CSIC

This Electric Poles connects the CSIC chip mounted on the Ink Cartridge. By using this poles, current ink consumption amount data is red out from the CSIC chip. And, the latest ink consumption amount data is written into the CSIC chip.

V Nozzle Plate

The plate with nozzle holes on the Print Head surface is called Nozzle Plate.

V Filter

When the Ink Cartridge is installed, if any dirt or dust around the cartridge needle is absorbed into the Print Head, there is a great possibility of causing nozzle clog and disturbance of ink flow, and alignment failure and dot missing finally. To prevent this problem, a filter is set under the cartridge needle.

OPERATING PRINCIPLES Printer Mechanism 56

EPSON Stylus Photo RX420/RX425/RX430 Revision A

V Ink Cavity

The ink absorbed from the Ink Cartridge goes through the filter and then is stored temporarily in this tank called “ink cavity” until PZT is driven.

Electric poles for CSIC

Needle

Filter

Nozzle selector board

CSIC Memory chip

*Head ID for the Print Head is

stored to the EEPROM.

Ink cartridge

PZT

Nozzle plate

Cavity

Figure 2-3. Print Head Sectional Drawing

2.2.2.1 Printing Process

This section explains the process which the Print Head of On-Demand inkjet printers eject ink from each nozzle.

1. Normal state:

When the printing signal is not output from the Main Board (C579 Main), or the PZT drive voltage is not applied, the PZT does not change the shape. Therefore, the PZT does not push the ink cavity. The ink pressure inside the ink cavity is kept normal. (refer to Figure 2-4 (p.57): Normal state)

2. Ejecting state:

When the print signal is output from Main Board (C579 Main), the nozzle selector IC located on the Print Head latches the data once by 1-byte unit. Based on the drive waveform (common voltage) generated on the Main Board, the PZT selected by the nozzle selector IC pushes the top of the ink cavity. By this operation, the ink stored in the ink cavity is ejected from nozzles. (refer to Figure 2-4 (p.57): Ejecting state)

Ink path PZT Ink cavity

Normal state

Nozzle Nozzle plate

PZT drive voltage

Ejecting state

Figure 2-4. Print Head Printing Process

2.2.2.2 Printing Method

The dot printing systems of Stylus Photo RX420/RX425/RX430 are variable dot printing systems.

V Variable dot printing

This printing mode is developed to improve the print quality on exclusive paper. This mode is basically the same as variable dot printing mode used on other products; micro dot, middle dot and large dot compose this mode. The printing dot size varies according to the print data and this mode enables to output even sharper image on exclusive paper.

V Economy dot printing

Economy dot printing is basically used only during Economy mode printing. The reason is that the resolution is low during Economy mode printing, so that the d ot size needs to be bigger.

OPERATING PRINCIPLES Printer Mechanism 57

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.3 Carriage Mechanism

The Carriage Mechanism consists of Carriage Unit (including the Print Head, CR Encoder Board and PW Sensor), CR Motor, Timing Belt and CR Scale etc. Following figure shows you each component for the CR Mechanism.

2.2.3.1 Carriage Mechanism

The following DC motor controls the CR Mechanism on this printer.

Table 2-1. CR Motor Specification

Items Specifications

Type DC motor with brushes

Drive Voltage 42V (DC) ± 5% (voltage applied to driver)

Armature resistance 28.4 Ω ± 10% (per phase at 25 degrees)

Inductance 20.1mH ± 25% (1KH 1Vrms)

Drive Method PWM, constant-current chopping

Driver IC A6627

Close loop control based on the CR Motor (DC Motor) and CR Encoder has advantages in stabilized print quality.

V Heat generation control

Using low-cost DC motors, this product grasps the variations of the torque constants, coil resistances and power supply voltages of the individual DC motors adequately to carry out heat generation control according to individual differences.

V CR measurement sequence

To set the appropriate drive current value according to the variation of the CR mechanical load, the mechanical load is measured in a CR measurement sequence and saved into the EEPROM in a power-on or I/C change sequence. A fatal error will occur if too much load is applied to the CR drive system.

The above control and sequences correct the drive current value of the CR Motor according to not only the mechanical load but al so the variations of the motor and like. In addition, the resultant CR drive current value is used to calculate a heating value, and when the specified heating value is reached, wait time is provided per CR path for printing.

CR Motor

CR Scale CR Encoder SensorPW Sensor

V CR variation measurement sequence

The variations of the torque constant, coil resistance and power supply voltage of the motor are measured in a CR variation measurement sequence when the CR

Carriage Guide ShaftTiming Belt

Figure 2-5. Carriage Mechanism

Carriage Unit

mechanical load is in the initial status and saved into the EEPROM. According to the variations (individual differences) measured in this sequence, the voltage is corrected to make the drive current value constant (without an individual difference).

OPERATING PRINCIPLES Printer Mechanism 58

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.3.2 Carriage Home Position Detection (TBD) 2.2.3.3 Sequence Used for PW Detection

The PW (paper width detection) Sensor installed on the Carriage Unit bottom is used to control the printer according to various sequences.

The following briefly describes the PW Sensor operating principle. A dark voltage is measured by the PW Sensor in three places on the right end plane

(area without the absorber) of the Front Paper Guide every time power is switched on, and the measurement values are saved into the EEPROM as threshold values.

T Threshold value > detection voltage: Paper present T Threshold value < detection voltage: Paper absent

The following sequences are performed. V Paper Left/Right Edge Detection Control

Before start of printing (immediately after the end of paper locating), or during printing, whether paper is present or not is detected to prevent off-paper printing on the Paper Guide by borderless printing used in a wrong way.

V Paper Top Edge Detection Control

Detects paper leading edge at start of printing. Also sets the amount of extension for the paper leading edge during borderless printing.

V Paper Bottom Edge Detection Control

Sets the amount of extension for the paper trailing edge during printing.

OPERATING PRINCIPLES Printer Mechanism 59

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.4 Paper Loading/Feeding Mechanism

The following DC motor controls the Paper loading/feeding mechanism on this printer.

Table 2-2. PF Motor Specifications

Item Description

Motor type DC motor with brushes

Drive voltage 42V (DC) ± 5% (voltage applied to driver)

Armature resistance 27.5 Ω ± 10% (per phase at 25 degrees)

Inductance 21.4mH ± 25% (1KH 1Vrms)

Driving method PWM, constant-current chopping

Driver IC A6627

Left side view

PF Motor

Spur Gear 30.8

PF Scale

PF Encoder Sensor

Spur Gear 30.8

The drive of the PF Motor is transmitted to the LD Roller Shaft and the PF Roller through gears for the Paper loading/feeding mechanism. The P aper loading mechanism plays a role in loading a paper from the ASF Unit to the PF Roller. And also, the Paper feeding mechanism plays a role in feeding a paper loaded from the ASF Unit. The functions of the Paper loading/feeding mechanism varies depending on the rotational direction of the PF Motor as the table below.

Table 2-3. ASF Unit Function & PF Motor Rotational Direction

Directions * Corresponding functions

Clockwise

• Pick up and feed a paper

• Set the Change Lever on the Clutch mechanism

Counterclockwise • Release the Change Lever from the Clutch mechanism

Note "*": The PF Motor pinion gear rotation direction = seen from the left side of the printer.

Following shows you the transmission path of the PF Motor drive to the LD Roller, the PF Roller and the EJ Roller. (The numbers in the following figure show you the order of transmission path.)

Left side view

PE Sensor

Spur Gear 13.5 (PF Roller)

Combination Gear 27.2, 19.2

Spur Gear 36.8

Paper

Absent

Paper

Present

PF Motor pinion gear

Spur Gear 32.4 (PF Roller)

Spur Gear 36 (EJ Roller)

Combination Gear 21.24

EJ Roller

PF Roller

Spur Gear 27.2

Spur Gear 16 (Change Lever)

PE Sensor

Lever

Low signal

Paper

High signal

Note : The Clutch gear is molded on the backside of the Spur Gear 36.8 such as Combination gear.

Figure 2-6. Paper Loading/Feeding Mechanism

OPERATING PRINCIPLES Printer Mechanism 60

EPSON Stylus Photo RX420/RX425/RX430 Revision A

For your reference, the top or the end of a paper is usually detected w ith the PE Sensor. In case that the PE Sensor cannot detect the top of a paper in the paper loading sequence, the printer indicates the “Paper Out error”. If the PE Sensor cannot detect the end of a paper in the paper feeding sequence, the printer indicates the “Paper Jam error”. As for the details, refer to Chapter 3 “Troubleshooting”.

2.2.4.1 Paper Loading Mechanism

The Paper loading mechanism consists of the Change Lever in the Pump Unit, the Holder Shaft Unit (including the Clutch mechanism) and the ASF Unit. The Change Lever and the Clutch mechanism play a major role in the Paper loading mechanism as follows.

1. ASF home position detection function The ASF Unit on this printer does not have the ASF Home Position Sensor. Instead of the ASF Home Position Sensor, the Change Lever and the Clutch mechanism is used to detect the ASF home position. When the Change Lever is set on the Clutch mechanism with the counterclockwise rotation of the PF Motor pinion gear, the ASF home position is detected by this lever for the paper loading operation. In this time, the printer cannot load a paper from ASF Unit because the drive of the PF Motor is not transmitted to the LD Roller Shaft.

2. Paper loading function When the Change Lever is released from the Clutch mechanism with the clockwise rotation of the PF Motor pinion gear, the ASF home position detection function is changed over to the paper loading function. Therefore, the printer can load a paper from ASF Unit because the drive of the PF Motor is transmitted to LD Roller Shaft.

During paper loading, paper is transported from the ASF Unit into the printer by the rotation of the 2 cams of the LD Roller.

T Cam (Large) : Hopper release T Cam (Small) : Paper Back Lever release

When 1 page paper is loaded, the cams mentioned above prepare the Hopper and Paper Back Lever for the next paper loading operation, and the remaining paper is returned to the standby position.

Figure 2-7 (p.62) and Figure 2-8 (p.63) show you the ASF paper loading sequence and

the operation of each mechanism.

OPERATING PRINCIPLES Printer Mechanism 61

EPSON Stylus Photo RX420/RX425/RX430 Revision A

When the PF Motor pinion gear rotates CCW direction (right side view), the Change Lever pushes down the Clutch lever as right figure and the Clutch lock tooth is disengaged from the Clutch Gear. As the result, the LD Roller Shaft dose not rotate at all because the drive of the PF Motor is not transmitted. In this time, the Hopper is also pushed down by the two cams on the LD Roller Shaft, and the Paper Back Lever is set to avoid that papers are slipped down from the paper set position.

This position is the ASF home position.

Hopper & Paper Back Lever condition

Hopper release cam

LD Roller Shaft

LD Roller

Paper Back Lever

Torsion Spring 6.45

Gear rotation direction (Right side view)

Spur Gear 13.5 (PF Roller)

Step 1 (ASF Home position) Step 2

Hopper & Paper Back Lever condition

Hopper

Compression Spring 5.58

ASF Frame

Gear rotation direction (Right side view)

Change Lever

Clutch lever

Clutch Clutch

gear

Clutch lock tooth

To Front side

Extension Spring

0.143

When a paper is loaded from the ASF Unit, the Change Lever moves to the front side of the printer with the CW rotation (right side view) of the PF Motor pinion gear and releases the Clutch lever. As the result, the Clutch turns back to the engagement position by the tension force of the Extension Spring 0.143. And, the Clutch gear is engaged with the Clutch lock tooth to transmit the drive of the PF Motor as left figure. In this time, the Change Lever is locked instantaneously by the protrusion on the backside of the Carriage Unit to change over from the ASF home position detection function to the paper loading function surely.

PF Motor pinion gear (CCW) → Spur Gear 30.8 (CW) → Spur Gear 32.4 (PF Roller) (CCW) → Spur Gear 13.5 (PF Roller) (CCW) → Combination Gear 21.24 (CW) → Spur Gear 27.2 (CCW) → Spur Gear 16 (CW) → Change Lever (CW) → Combination Gear 27.2, 19.2 (CCW) → Spur Gear 36.8 (CW) * Above transmission pass = seen from the right side of the printer

PF Motor pinion gear (CW) → Spur Gear 30.8 (CCW) → Spur Gear 32.4 (PF Roller) (CW) → Spur Gear 13.5 (PF Roller) (CW) → Combination Gear 21.24 (CCW) → Spur Gear 27.2 (CW) → Spur Gear 16 (CCW) → Change Lever (CCW) → Combination Gear 27.2, 19.2 (CW) → Spur Gear 36.8 (CCW ) * Above transmission pass = seen from the right side of the printer

Figure 2-7. ASF Paper Loading Sequence (Step 1, 2)

OPERATING PRINCIPLES Printer Mechanism 62

EPSON Stylus Photo RX420/RX425/RX430 Revision A

The PF Motor pinion gear rotates CCW direction (right side view), and the drive of the PF Motor is transmitted to the LD Roller Shaft through the Clutch lock tooth and the Clutch gear. After the LD Roller pushes down the Paper Back Lever into the ASF Frame, the Hopper is released by the tension force of the Compression Spring 5.58. And, a paper is picked up with the frictional force between the LD Roller and the Pad Hopper.

Hopper & Paper Back Lever condition

Hopper release cam

Gear rotation direction (Right side view)

Step 3 Step 4

Hopper & Paper Back Lever condition

Hopper release cam

Compression Spring 5.58

Paper Back Lever

Gear rotation direction (Right side view)

LD Roller Shaft

While the LD Roller rotates CCW direction (right side view) continuously, the top of a paper is loaded to the PF Roller. In this rotation, the Hopper returns to the open

position and the Paper Back Lever is pushed up by the cam of the LD Roller. In this

ASF Frame

time, this lever returns papers to the stand-by position in ASF Unit for next paper loading operation. Then, when the rolling LD Roller & the Clutch come at the above “Step 1” position, the Clutch lever is locked with the Change Lever again. In this time, the drive of the PF Motor is interrupted and the drive is transmitted only to the PF Roller side for the paper feeding sequence.

Figure 2-8. ASF Paper Loading Sequence (Step 3, 4)

OPERATING PRINCIPLES Printer Mechanism 63

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.4.2 Paper Feeding Mechanism

The Paper feeding mechanism consists of PF Motor, PF Roller, EJ Roller, PE Sensor, PF Encoder Sensor and PF Scale etc. The Paper feeding mechanism feeds a paper loaded from ASF Unit by using pairs of rollers.

1. One pair is the PF Roller and the Paper Guide Roller which is assembled in the Paper Guide Upper Unit. The drive of the PF Motor is transmitted to the Paper Guide Roller through the PF Roller.

2. Another pair is the EJ Roller and the Star Wheel which is assembled on the EJ Frame Unit. The drive of the PF Motor is transmitted to the Star Wheel through the EJ Roller.

Left side view

Spur Gear 30.8

PF Encoder Sensor

Paper Guide Roller

Spur Gear 30.8

Star Wheel

Following figure shows you the transmission path for the PF Roller & the Paper Guide Roller and the EJ Roller & the Star Wheel.

The top of a paper is loaded to the PF Roller from the ASF Unit in the paper loading sequence. And then, when the PF Motor pinion gear rotates CW direction (left side view), a paper is fed by the PF Roller & the Paper Guide Roller and the EJ Roller & the Star Wheel in the printing operation & the paper feed sequence.

PF Motor

PF Motor pinion gear

Spur Gear 32.4 (PF Roller)

Transmission path (left side view)

• PF Motor pinion gear (CW) → Spur Gear 30.8 (CCW) → Spur gear 32.4 (PF Roller) (CW)

• PF Motor pinion gear (CW) → Spur Gear 30.8 (CCW) → Spur gear 32.4 (PF Roller) (CW) → Spur Gear 30.8 (CCW) → Spur Gear 36 (EJ Roller) (CW)

PF Scale

Spur Gear 36 (EJ Roller)

PF Roller

EJ Roller

Figure 2-9. Paper Feeding Mechanism

OPERATING PRINCIPLES Printer Mechanism 64

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.5 Ink System Mechanism

The Ink System Mechanism consists of Pump mechanism with Carriage lock mechanism and Capping mechanism with Wiper mechanism. Following table lists the function for each mechanism.

Table 2-4. Function For Each Mechanism

Mechanism Function

Capping mechanism *

Wiper mechanism

Pump mechanism

Carriage lock mechanism

Note : Like the previous SPC (Stylus CX4500/CX4600), this printer adopts the valveless cap

system. The air valve system used for the previous printer (Stylus COLOR 740) have two functions by the CR position in the capping condition as follows.

This is to cover the surface of the Print Head with the cap in order to

This is to remove the foreign material and unnecessary ink on the nozzle plate of the Print Head.

This is to eject the ink from the Ink Cartridge, the ink cavity and the cap to the Waste Ink Pad.

This is to lock the Carriage Unit with the Change Lever while the Carriage Unit is at the home position.

prevent the nozzle from increasing viscosity.

1) Valve closing condition (CL position) By closing the air valve, the ink is forcibly absorbed from the Ink Cartridge or the ink cavity by the Pump Unit and is ejected to the Waste Ink Pad while the Carriage Unit is in the CL position.

2) Valve opening condition (Ink absorption position) By opening the Air valve, the negative pressure is decreased and only the ink inside the Cap is ejected while the Carriage Unit is in the further right side than the CL position. (the ink is not absorbed from the Ink Cartridge or the ink cavity.)

The following shows you the Carriage Unit position for each condition easily.

Printing area CR home position

CL position (valve closing condition)

Ink absorption position (valve opening condition)

But, on the valveless cap system, the above 2) operation is done outside the capping position. The Carriage Unit moves outside the CR home position and the pump absorbs the ink inside the Cap.

OPERATING PRINCIPLES Printer Mechanism 65

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.5.1 Capping Mechanism

The Capping mechanism covers the Print Head with the Cap to prevent the nozzle from increasing viscosity when the printer is in stand-by state or when the printer is off.

When the Carriage Unit is in the home position, the hook of the Slider Lock Lever is not latched to the dent of the Cap Frame. In this time, the protrusion of the Cap Slider Lever does not reach the rightmost position of the Cap Frame.

Capping position (CR home position)

Step 1

Protrusion

Not latched

V Wiper with the Cap unit

The wiping operation is controlled by the Carriage Unit movement. This operation is usually performed with every CL sequence which is to absorb the ink from the ink cartridge, the ink cavity by the Pump unit. Following figure shows you the mechanism for the wiping operation.

Step 2

The Carriage Unit moves to the Wiper setting position on the rightmost position of the Cap Frame with keeping the Cap covered. In this time, the hook of the Slider Lock Lever is latched to the dent of the Cap Frame.

Latched

Wiper setting position

When the Carriage Unit moves to the left side from the Wiper setting position, the Cap Unit is pulled back by the tension force of the

Spring 0.788.

Extension

In this time, the Cap Unit is automatically set to the wiping position because the hook on the Slider Lock Lever is latched to dent of the Cap Frame. And, the wiping operation is performed according to the Carriage Unit movement.

Step 3 Step 4

Protrusion of the Carriage Un it

Wiping position

Latched

Released

Released position (Bottom position)

When the wiping operation is finished and the Carriage unit moves further to the left side, the hook of the Carriage unit hits to the Slider Lock Lever. In this time, the Slider Lock Lever is released and the Cap slider returns to the bottom position completely. (The broken line is the position of the Carriage Unit & the Slider Lock Lever just before being released.)

Figure 2-10. Wiper Mechanism

OPERATING PRINCIPLES Printer Mechanism 66

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.2.5.2 Pump Unit Mechanism

The PF Motor also controls the Pump Unit mechanism (including the Change Lever) as well as the Paper loading/feeding mechanism. The drive of the PF Motor is always transmitted to the Pump Unit. (And also, its drive is transmitted to the LD Roller through the Clutch mechanism & the Change Lever.) On this printer, the Pump Unit mechanism including the Change Lever plays a major role expecting the ink eject operation. And, these operations control depending on the PF Motor rotational direction as the following table below.

Table 2-5. PF Motor Rotational Direction & Ink System Mechanism

Directions * Functions

Clockwise • Pump release

Counterclockwise

Note "*": The PF Motor rotational direction = seen from the left side of the printer.

Spur Gear 30.8

• Absorbs the ink

• Release the Change Lever from the Clutch mechanism

Left side view

1. Ink eject operation (usual operation) The ink is absorbed from the Ink Cartridge, the ink cavity and is ejected to the Waste Ink Pad from the Cap when the Ink Tube is pressed by a roller in the Pump Unit.

Following figure shows you the overview of the Pump Unit mechanism operation.

Cap Unit

side

Waste Ink

Pad side

Note : The PF Motor rotational direction = seen from the right side of the printer.

Figure 2-11. Pump Mechanism

Pump Unit

Spur Gear 27.2 (Pump Unit gear)

Right side view

PF Motor pinion gear

Spur Gear 32.4 (PF Roller)

Cap Unit

Spur Gear 13.5 (PF roller)

Combination Gear 21.24

Transmission Path: PF Motor pinion gear (CW) → Spur Gear 30.8 (CCW) → Spur Gear 32.4 (PF Roller) (CW) → Spur Gear 13.5 (PF Roller) (CW) →

Combination Gear 21.24 (CCW) → Spur Gear 27.2 (Pump Unit gear) (CW) (Above transmission pass = seen from the right side of the printer)

Figure 2-12. PF Motor Drive Transmission Path To The Pump Unit

OPERATING PRINCIPLES Printer Mechanism 67

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2. Carriage lock operation by the Change Lever Unlike the previous printer (Stylus COLOR 680), this printer does not have the Carriage Lock Lever with the Wiper. Instead of the Carriage Lock Lever, the Change Lever is set to the right side of the printer while the Carriage Unit is in the CR home position. (As for the detailed mechanism for setting the Change Lever, refer to Figure 2-7

(p.62) Step 2)

2.2.6 Ink Sequence

V Initial Ink Charge

After the printer is purchased and the power is turned on for the first time, the printer must perform the Initial Ink Charge to charge the ink inside the ink cavity. When the Initial Ink Charge is completed properly, the printer releases the flag inside the EEPROM. The Stylus Photo RX420/RX425/RX430 takes about 70 seconds to complete the initial ink charge sequence and consumes about 24% of each of the brand-new ink cartridges. If the power is turned off during the Initial Ink Charge, the CL3 will be performed at next power on timing.

V Manual Cleaning

The Stylus Photo RX420/RX425/RX430 provides three types of manual cleaning to clean air bubbles, clogged ink with viscosity or foreign substances. The following manual CL can be performed by the control panel operation, the printer driver utility and the Adjustment program.

T CL1

• Ink absorption Black Ink: 0.163g, Color Ink: 0.488g

• Wiping operation Wipes the nozzle plate by the rubber part on the Cap Unit.

• Flashing operation Prevents color from mixing, and stabilizes ink surface inside the nozzle.

T CL2

• Ink absorption Black Ink: 0.453g, Color Ink: 1.358g

• Wiping operation Wipes the nozzle plate by the rubber part on the Cap Unit.

• Flashing operation Prevents color from mixing, and stabilizes ink surface inside the nozzle.

T CL3

• Ink absorption Black Ink: 0.973g, Color Ink: 2.918g

• Wiping operation Wipes the nozzle plate by the rubber part on the Cap Unit.

• Flashing operation Prevents color from mixing, and stabilizes ink surface inside the nozzle.

OPERATING PRINCIPLES Printer Mechanism 68

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Independently of the printing path after the previous CL, perform manual CL from CL1 to CL3 in order if the cumulative printing timer counter is less than 9min. Only when the cumulative printing timer counter is more than 9min, execute only CL1. Additionally, if the I/C is Ink Low or Out condition, any manual cleaning is prohibited and it is displayed on the LED indicators.

V Timer Cleaning

Like the previous SPC (Stylus CX4500/CX4600), this printer dose not have Lithium battery which is used for the backup power source for Timer IC. So, this printer manages the printer off period or cleaning cycle by using the following method. The Printer Driver sends the timer command to the printer before printing. The timer command is generated based on the PC’s timer and it consists of year, month, date, hour, minute and second. As soon as the printer receives the timer command from the Printer Driver, the printer stores its command in address 06<H> and 07<H> in the EEPROM. Then, it is compared with the latest CL time which is stored in address 04<H> and 05<H> in the EEPROM. And, In case that the timer cleaning period is over the specific period, the printer performs the timer cleaning automatically. In this time, the printer stores the timer command in address 04<H>, 05<H>, 06<H>, 07<H> in the EEPROM. Maximum 3.251g of the ink is consumed in the timer cleaning. (0.813g of black ink and 2.438g of color ink are consumed.)

V Flashing

Two different flushing operations are executed for the following reasons. T Pre-printing flushing

This is done before a start of printing to eliminate ink viscosity in the Print Head nozzles.

T Periodic flushing

This is done during printing to prevent ink viscosity in the Print Head nozzles from increasing.

OPERATING PRINCIPLES Printer Mechanism 69

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.3 Scanner Mechanism

The Scanner Mechanism of Stylus Photo RX420/RX425/RX430 is constructed of a Scanner Carriage Unit, Scanner Motor, Scanner HP Sensor, etc., in the same way as previous A4 size scanners.

2.3.1 Scanner Carriage Mechanism

2.3.1.1 Scanner Carriage Unit Overview

The Scanner Carriage Unit is constructed of a CIS Board (including linear CCD), Rod Lens Array, LED (light source), etc.

V CIS Board

This takes the light information read from the document by the Rod Lens Array and converts it to digital information using the linear CCD.

V Rod Lens Array

Many rod-shaped lenses are arranged in parallel, and the upright multiple images of each lens is overlapped to form a single continuous image. Compared to a regular lens, this has the special ability to reduce the distances between images. It can project at 1 to 1 size for imaging a linear CCD with a width identical to an A4 size document.

V LED

The unit uses an LED for an exposure light source. Using an LED eliminates the need for an inverter board, and power consumption is reduced.

Scanner Carriage UnitScanner HP Sensor Scanner Carriage Shaft

Scanner Motor Timing Belt

Figure 2-13. Scanner Mechanism

LEDRod Lens Array

CCD

Scanner Carriage Unit

Figure 2-14. Scanning Image

CIS Board

OPERATING PRINCIPLES Scanner Mechanism 70

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.3.1.2 Scanner Carriage Unit Movement Overview

Scanning image is performed in the main scan direction (=1 line) by the CCD sensor and in the sub-scan direction (=several lines) combined with Scanner Carriage Unit movement. (refer to the figure below) Line type, color CCD sensor can scan 1 line in main scan direction (parallel to the Scanner Carriage Unit) by one time. When scanning next lines after the second line in sub-scan direction, CR driving moves the Scanner Carriage Unit, which has CCD sensor inside, and scan the other lines. The scanned data is sent to the control board. The scanned data for “n” lines and “n-1” line are processed consecutively.

1st line 2nd line 1 pixel

Scanner Carriage Unit

Sub-scan direction by Scanner Carriage Unit movement

Figure 2-15. Scanner Carriage Unit Movement

Document

Main-scan direction

Drive of the Scanner Motor is transferred to the Scanner Carriage Unit by the Scanner Timing Belt. The Scanner Carriage Unit slides in the secondary scanning direction. The Scanner Motor uses a stepping motor and drives using open loop control.

When the HP detection flag of the Scanner Carriage Unit disrupts the signal of the Scanner HP Sensor, the Scanner HP Sensor outputs a high signal, and the Scanner Carriage Unit is determined to be in the home position.

Right side

Scanner HP Sensor

Scanner Motor

Left side

Flag

The table below shows the specifications for the stepping motor that controls the Scanner Carriage Mechanism.

Figure 2-16. Scanner Carriage Unit Mechanism

Scanner Carriage Unit

Table 2-6. Scanner Motor Specifications

Item Description

Motor type PM type stepping motor

Drive voltage 42V (DC)

Coil resistance 37Ω ± 7% (per phase at 25 degrees)

Inductance TBDmH ± TBD% (1KH 1Vrms)

Driving method PWM

Driver IC A6627

OPERATING PRINCIPLES Scanner Mechanism 71

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4 Electrical Circuit Operating Principles

The electric circuit of the Stylus Photo RX420/RX425/RX430 consists of the following boards.

V Main Board (CPU-ASIC 2 in 1 + Soldering Flas h ROM) : C579 Main Board V Power Supply Board : C571 PSB/PSE Board

NOTE: CPU and ASIC is integrated as one chip (IC8) on the Main Board.

This section provides operating principles of C579 Main Board and C517 PSB/PSE Board. Refer to Figure 2-17 (p.72) for the major connection of the each boards and their roles.

C571 PNL Board

C579

Main Board

+42VDCPower Off

C571 PSB/PSE

Board

Figure 2-17. Electric Circuit

Printer Mechanism

CR Motor

PF Motor

Head Driver Board

Sensors

Scanner Mechanism

Scanner Motor

CIS Unit

Scanner HP Sensor

Memory Card

OPERATING PRINCIPLES Electrical Circuit Operating Principles 72

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4.1 PSB/PSE Board

In the PSB/PSE Board of Stylus Photo RX420/RX425/RX430, the simulated oscillating stimulation flyback converter circuit method is used, and it supplies +42VDC to the drive line. The application of the output voltage is described below.

Table 2-7. Application Of The DC Voltages

Voltage Application

• Motors (CR Motor, PF Motor, Scanner Motor)

+42VDC

AC voltage input from AC inlet first goes through filter circuit that removes high frequency components and is then converted to DC voltage via the rectifier circuit and the smoothing circuit. DC voltage is then lead to the switching circuit and FET Q1 preforms the switching operation. By the switching operation of the primary circuit, +42VDC is generated and stabilized at the secondary circuit.

• Print Head common voltage

• Print Head nozzle selector 42V drive voltage

2.4.1.1 C571 PSB/PSE Board (TBD)

OPERATING PRINCIPLES Electrical Circuit Operating Principles 73

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4.2 C579 Main Board

The logic circuit of the C579 Main Board is composed of the follows;

T Logic line (CPU-ASIC 2 in 1, SDRAM, P-ROM and so on) T Motor control/drive circuit (CR Motor, PF Motor, Scanner Motor) T Head control/drive circuit T USB Interface control circuit T Sensor circuit T Combination circuit (RTC circuit, Reset circuit, EEPROM circuit)

The printer mechanism is controlled by the above circuits. Following explains the major characteristics of this Main Board.

V Lithium battery is not mounted

Unlike the previous printer (Stylus COLOR 680), the Lithium battery is not mounted on the Main Board.

V Adoption of 3.3V/1.5V drive logic circuit components

The 5V formed by the Combination Motor Driver (IC9) of C579 Main Board is stepped down to 3.3V by the Regulator (IC10), and it is then used as drive voltage for many elements. In addition, when SPC shifts to l ow power mode, the 3.3V that was stepped down by the Regulator (IC10) is stepped down to 1.5V by the Combination Motor Driver (IC9) and elements that had been driven by 3.3V are driven by 1.5V for suppression of power consumption.

2.4.2.1 Main Elements

Table 2-9 (p.74) shows the function of the each main elements on C579 Main Board.

Table 2-9. Main Elements

IC Location Function

Flash ROM IC5

SDRAM IC6 Bus= 16 bit, 64Mbit DRAM

RTC IC7

CPU-ASIC IC8

Motor Driver IC9

Regulator IC10 Dropping 5V line to 3.3V

Common Driver IC11

16Mbit

• Firmware storage

• EEPROM Default settings, backup for all parameters

• Reset function

• Timer function

CPU mounted on the MAIN board is driven by clock frequency 48 MHz, 96MHz and controls the printer and scanner.

• CR/PF/Scanner motor drive IC

• Dropping 42V line to 5V

• Dropping 3.3V line to 1.5V

Head drive control HIC

• Generates head common voltage.

Table 2-8. 3.3V/1.5V & 5V Drive Components

5VDC 3.3/1.5VDC

• Flash ROM (IC5)

• SDRAM (IC6)

• RTC (IC7)

• CPU-ASIC (IC8)

• Motor driver (IC9)

• Common driver (IC11)

OPERATING PRINCIPLES Electrical Circuit Operating Principles 74

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Card Slot

(CN14)

Card Slot

(CN15)

Scanner HP Sensor

Card ASIC

(IC13)

CN11CIS Unit

C571 Panel Board

Flash-ROM

(IC5)

SDRAM

(IC6)

RTC (IC7)

Converter

(IC12)

CN12

CN13

Data

Address

CPU-ASIC 2 in 1

(IC8)

Motor Driver

(IC9)

CN3

CN4

Head Driver (IC11)

Q9, Q10

CN8

CN9

CN10

CN5

CN6

CR Motor

PF Motor

Scanner Motor

PF Encoder Sensor

PE Sensor

PG Sensor

Print Head

USB

(CN2)

CN1C571 PS Board

CN7

CR Encoder Sensor

PW Sensor

CSIC Board

Figure 2-18. Block Diagram For The C579 Main Board

OPERATING PRINCIPLES Electrical Circuit Operating Principles 75

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4.2.2 Print Head Driver Circuit

The Print Head driver circuit consists of the following two components:

T Head common driver circuit (Common driver IC11 & Wave amplifier

transistor Q9, Q10)

T Nozzle selector IC on the Print Head driver

The common driver (IC11) generates a basic drive waveform according to the output signals from CPU (IC8). The basic drive waveform is amplified by the transistors Q9 and Q10 (the amplified one is called drive waveform.) and then transferred to the nozzle selector IC on the Print Head driver board. Print data is converted to serial data by the CPU and then sent to the nozzle selector IC on the Print Head driver board. Based on the serial data, the nozzle selector IC determines the nozzles to be actuated. The selected nozzles are driven by the drive waveforms amplified by the transistor Q9 and Q10. Refer to Figure 2-19 (p.76) for the Print Head driver circuit block diagram.

V Head common driver circuit

The basic drive waveform is generated in the common driver (IC11) based on the following 13 signal lines output from the CPU (IC8); DATA0-DATA9, LAT, RESET, and PSCNT. By the DATA signal output from the CPU, the original data for the basic drive waveform is written in the memory in the common driver (IC11). The addresses for the written data are determined by DATA0-DATA9 signals. Then, the necessary data is selected from the address and appropriate basic drive waveform is generated. Generated basic drive waveform is transferred to nozzle selector IC on the Print Head driver board through the transistor Q9 and Q10 and applied to the nozzle PZT specified by nozzle selector IC.

V Nozzle selector circuit

Printing data is allocated to the four rows (the number of the head nozzle rows) and converted into serial data by the CPU (IC8). Then the converted data is transferred to the nozzle selector IC through the four signals lines (HS01 to HS04). Data transmission from the CPU to the nozzle selector synchronizes with the LAT signal and SCK clock signal. Based on the transmitted data, appropriate nozzle is selected and the PZTs of the selected nozzle are driven by the drive waveform output from the head common driver.

CPU

(IC8)

HDAC_D0 HDAC_D1 HDAC_D2 HDAC_D3 HDAC_D4 HDAC_D5 HDAC_D6 HDAC_D7 HDAC_D8 HDAC_D9

HDAC_CLK

HDAC_RST

PS3

HCH

HSOCLK

HS03 HS04

HLAT

NCHG

HS01 HS02

AN1

Head Driver

A15 B15 C15 D15 C13 B13 A13 C14 B14 A14 C16 C17 B1

A8 C12 B7 C10 B9 C11 B8 A7

4 3 2

1 28 27 26 25 24 23

(IC11)

DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 DATA9 LAT RESET PSCNT

VCC2

OUT1 OUT1 OUT2 OUT3

+4.2V

Q10

Figure 2-19. Print Head Driver Circuit

+3.3V

CN6

CN5

Nozzle

Selector IC

VHV

COM

SCK

SI3_Ma

SI4_Cy

COM

LAT

NCHG

SI1_Bk

SI2_Ye

XHOT/TMM

Head Drive Pulse

OPERATING PRINCIPLES Electrical Circuit Operating Principles 76

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4.2.3 Motor Driver Circuit

CR/PF Motor drive circuit

The motor driver IC (IC9) on the Main board drives CR/PF Motor. This product uses DC motor and performs constant current PWM drive. Based on the output pulse (signal) from CR Encoder or PF Encoder, the CPU (IC8) sets the appropriate drive current value for each operational action and outputs the value as a special control signal to the Motor Driver (IC9). Then, based on the signal output from the CPU, the Motor Driver outputs the motor drive current to the CR/PF Motor. When no data has been received for 5 minutes, the CPU sets the Motor Driver current value to 0, turning off the Motor Driver, in order to conserve electricity.

Scanner Motor Driver Circuit

The motor driver IC (IC9) on the Main board drives Scanner Motor. This product uses PM type stepping motor and performs constant current bi-polar drive. The Motor Driver IC (IC9) forms the motor drive waveform based on the signal output from the CPU (IC8), controlling the Scanner Motor. When no data has been received for 5 minutes, the CPU sets the Motor Driver current value to 0, turning off the Motor Driver, in order to conserve electricity.

CPU

(IC8)

SCLK1_DCMCU

SDATA1_DCMCU

SLD1_DCMCU

SCLK2_DCMCU

SDATA2_DCMCU

SLD2_DCMCU

ENB1_DCMCU ENB2_DCMCU

CLK4M

RST_DCMCU

A19 B19 A20 D20 C20 D19

B20 C19 E20 E19

+42V

+3.3V+42V+3.3V

Motor Driver

VDD

VBB1

VBB2

VBB3

VBB4

CLK1

DATA1

STB1

CLK2

DATA2

STB2

VRF1

VRF2

VRF3

ENB1

ENB2

OSC

SLEEP

VBBSW

VCP

CP1

CP2

GATEREG

(IC9)

OUT1A OUT1B

OUT2A OUT2B

OUT3A OUT3B OUT4A OUT4B

VOUT1

SW1

FB1

DOUT2

SW2

FB2

SENSE1 SENSE2 SENSE3 SENSE4

GND GND GND GND

44 47

42 39

19 22 17 14

29 30 28

33 32 34

45 41 20 16 7 18 27 43

CN8

CN9

CN10

12CR-A

CR-B

12PF-A

PF-B

+1.5V

CR Motor

PF Motor

Scanner Motor

+5V

+1.5V_BS

Figure 2-20. Motor Driver Circuit Block Diagram

OPERATING PRINCIPLES Electrical Circuit Operating Principles 77

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4.2.4 Combination Circuit

This printer differs from previous models by using a combination IC that integrates the reset circuit, EEPROM and RTC.

Reset Circuit

RTC IC (IC7) on the Main Board monitors the three voltage: +3.3V for the logic line, +5V for the logic line and +42V for t he drive line. Reset Circuit outputs the reset signal to CPU (IC8) in the following case.

V +3.3V line reset circuit

The 3.3V line is monitored at the VDD port of IC7, and if an abnormal voltage is detected, a reset signal for the CPU is output from the FRST port of IC7.

V +5V line reset circuit

The 5V line is monitored at the VDD2 port of IC7, and if an abnormal voltage is detected, a reset signal for the CPU is output from the RST port of IC7.

V +42V line reset circuit

The 42V line is monitored at the VEX port of IC7, and if an abnormal voltage is detected, a reset signal for the CPU is output from the EXO port of IC7.

EEPROM Control Circuit

When the printer power is turned off, the following information is stored in EEPROM (IC7) which is nonvolatile memory. And, when the printer power is on, CPU (IC8) reads the information from EEPROM.

RTC Circuit

By adoption of the large-capacity capacitor (C9) for timer, the Power-off timer can be backed up for about one week after power-off.

+42V

+5V +3.3V +3.3V +3.3V

RTC

(IC7)

14 12

VDD VIS

VDD2 VEX

VSS

CLK

EXO

FRST

RST

5 4 3 2 9 13 11

A18 B18 A17 B17 E18 C18 D18

CPU

(IC8)

TCE TCLK TDO TIMDI MNII MRES /RESET

Figure 2-21. RTC Circuit Block Diagram

Information stored in EEPROM is listed below.

T Various ink counter (I/C consumption counter, Waste Ink Pad counter, etc.) T Mechanical setting value (Head ID, Bi-D Adjustment, USB ID, etc.)

EEPROM is connected to CPU with 4 lines and each line has the following function.

T CE : Chip selection signal T CLK : Data synchronism clock pulse T DI : Data writing line (serial data) at power off. T DO : Data reading line (serial data) at power on.

OPERATING PRINCIPLES Electrical Circuit Operating Principles 78

EPSON Stylus Photo RX420/RX425/RX430 Revision A

2.4.2.5 Sensor Circuit

CPU (IC8) on the Main Board monitors the status of the printer by several sensors. However, unlike the previous product, ASF Unit on this printer does not have ASF Sensor. Instead of ASF Sensor, Change Lever and the Clutch mechanism is used to detect ASF home position. (As for the ASF home position detection, refer to “2.2.4

Paper Loading/Feeding Mechanism” (p.60).)

V PE Sensor

This sensor is mounted at the right side center of the Printer Mechanism, and it detects the presence/absence of paper when the paper passes through the Paper Guide Rear. The PE Sensor is constructed of a transmissive photosensor and the PE Sensor Lever.

T Paper Absent : Because the PE Sensor Lever does not interfere between

the photosensor terminals, a low signal is output to the CPU.

T Paper Present : The PE Sensor Lever interferes between the photosensor

terminals, and a high signal is output to the CPU.

V PG Sensor

This sensor is mounted at the left end lower section of the Printer Mechanism, and it detects the condition of PG (Platen Gap). The detection method used by the PG Sensor is mechanical contact points.

T PG Normal : A low signal is output to the CPU.

V PF Encoder Sensor

The sensor is composed of a transmissive photosensors mounted to the loop scale of the PF Roller Unit left side and to the Main Board. Minimum resolution of 1/ 180 inch is provided, and output to the CPU is a high signal for the black slits on the loop scale and a low signal for the transparent slits on the loop scale. Control of the PF Motor is based on the output signal.

V Thermistor (THM)

The thermistor is directly mounted on the Print Head driver board. It monitors the temperature around the Print Head and determines the proper head drive voltage to uniform the weight of the ink fired from the Print Head. This information is fed back to the CPU analog port. When the temperature rises, the head drive circuit lowers the drive voltage: When the temperature lowers, the head drive circuit rises the drive voltage.

V Scanner HP Sensor

Mounted in the Scanner Unit, this sensor detects whether the CIS Unit is inside or outside the home position

T Inside HP : A high signal output to the CPU. T Outside HP : A low signal is output to the CPU.

T PG Large : A high signal is output to the CPU.

V PW Sensor

The sensor is mounted to the bottom of the Carriage Unit. It detects the top and bottom, left and right edges of the paper being fed.

T Paper absent : A low signal is output to the CPU. T Paper present : A high signal output to the CPU.

V CR Encoder Sensor

The sensor is composed of a transmissive photosensor mounted to the back of the carriage and a linear scale mounted in the CR scan direction. Minimum resolution of 1/180 inch is provided, and output to the CPU is a high signal for the black slits on the linear scale and a low signal for transparent slits. Control of the CR Motor is based on the output signal. The home position of the Carriage Unit is detected by this sensor.

OPERATING PRINCIPLES Electrical Circuit Operating Principles 79

EPSON Stylus Photo RX420/RX425/RX430 Revision A

The block diagram for the sensor circuit is shown below.

+3.3V+3.3V +3.3V

VOA

VOB

VCC

GND

CVDD

COI

CSCK

CSDA

CRST

ENDD

LEDON

ENCA

ENCB

PF Encoder

VOA VOB

VCC GND

(P1)

CN7

• CR

Encroacher Sensor

• PW Sensor

• CSIC

CN3

PE Sensor

CN4

PG Sensor

CN4

Scanner HP

Sensor

CN5

THM

PEV

GND

PEV

GND

SCN_HP

XHOT/

THM

+3.3V

3 2 1

+3.3V

1 2

3 2 1

+3.3V_SN

+3.3V

F20

+3.3V

SCNHP

AN1

CPU

(IC8)

CVDD

CCLK

CDIO

CXRST

AN20

EA_CR

EB_CR

EA_PF EB_PF

A12 A10 B12 B11 A11 B5

B10 A9

A16 B16

+3.3V

+3.3V_SN

Figure 2-22. Sensor Circuit Diagram

OPERATING PRINCIPLES Electrical Circuit Operating Principles 80

TROUBLESHOOTING

CHAPTER

EPSON Stylus Photo RX420/RX425/RX430 Revision A

3.1 Overview

This chapter describes unit-level troubleshooting. Refer to the flo wchart in this chapter to identify the defective unit and perform component level repair if necessary. This chapter also explains motor coil resistance, sensor specification and error indication.

START

Unit-level troubleshooting

Unit repair

Assemble & Adjustment

END

Figure 3-1. Troubleshooting Flowchart

Table 3-1. Motor, Coil Resistance

Motor Location Check point Resistance

Scanner Motor CN10

Note : Since CR Motor and PF Motor are DC motors, the resistance among the electric poles

varies. Therefore, judge if it is normal or abnormal based on if there is operation of the motor or not; the resistance values cannot be used to judge the abnormality. However, it is difficult to judge accurately, if it is not clear, replace the motor.

Pin 1 and 3 Pin 2 and 4

37Ω ± 7%

(at 25°C / phase)

Table 3-2. Sensor Check Point

Sensor name Check point Signal level Switch mode

PE Sensor CN3 / Pin 1 and 2

PG Sensor CN4 / Pin 1 and 2 —

Scanner HP Sensor CN13 / Pin 1 and 2 —

Less than 0.4V Off: No paper

More than 2.4V On : Detect the paper

On : PG large Off: PG normal

On : Within Scanner Carriage

home position

Off: Out of Scanner Carriage

home position

3.2 Error Indications and Fault Occurrence Causes

This section describes the LED indications, STM3 messages and fault occurrence causes at occurrence of the following errors during any sequence/operation (e.g. power-on sequence, paper feeding/loading sequence, ink sucking sequence).

NOTE 1: STM3 screens shown in the following page are of the Stylus CX4600. The

difference is only the model name and the SPC’s illustration.

2: Errors caused by the Scanner Unit are not displayed on the STM3.

(STM3 displays the Printer’s errors only)

TROUBLESHOOTING Overview 82

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-3. Error Indications and Fault Occurrence Causes

Printer Status Communication error Ink low PG error Index sheet error (Incorrect card)

Power — — — — Error — — Blink 2 Blink 2 Ink — Blink — Off

1 — — — —

Memory Card

Indications

7-seg. — — “H” blink 2 “4” blink 2 Paper Type

Paper Size Fit to Page — — — —

Card Access — — — —

Status Monitor 3 Message — —

2 — — — Blink 2 3 — — — —

1 — — — — 2 — — — — 1 — — — — 2 — — — —

This error is detected when the SPC cannot communicate with the PC correctly.

Fault Occurrence Cause

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

Note : Even if this error is indicated on the STM3, you can continue the printing until I/C becomes Ink Out condition. However, the Head Cleaning operation cannot be done so that the remaining ink is low condition.

This error is generated by PG large condition and is detected at pressing of BW/Color Start button when about to use stand-alone printing. (The PG error is not generated when printing from a PC.)

This error is detected when the content of Index Sheet and content of Memory Card do not match. (Checksum does not match, etc.)

Note : “–” : Don’t care

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 83

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-3. Error Indications and Fault Occurrence Causes

Printer Status Index sheet error (Incorrect marking)

Power — — — — Error Blink 2 Blink 2 Blink 2 On Ink Off Off Off Off

1 — — Blink 2 —

Indications

Memory Card

7-seg. “3” blink 2 “2” blink 2 “1” blink 2 — Paper Type

Paper Size Fit to Page — — Off —

Card Access — — — —

2 Blink 2 Blink 2 Blink 2 — 3 — — Blink 2 —

1 — — — — 2 — — — — 1 — — Off — 2 — — Off —

Index sheet error (No index sheet)

Memory card error

(Incompatible memory card)

Double feed

Status Monitor 3 Message — — —

Fault Occurrence Cause

Note : “–” : Don’t care

This error is detected when data does not conform to content of Index Sheet. (When mark is not set even though it must be selected.)

This error is detected when;

• Index Sheet placement method is opposite.

• There is no Index Sheet.

• Index Sheet cannot be recognized.

This error is detected at pressing of Color Start button when a result for access to a memory card to be printed is outside the format of supported memory cards or when image data is not found. (This does not include situations when there is no memory card.)

This error is detected at resending of paper for double-sided printing when paper length is determined to be other than default value.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 84

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-3. Error Indications and Fault Occurrence Causes

Printer Status Paper out Ink out or No Ink cartridge CSIC error Incorrect I/C

Power — — — — Error On Off Off Off Ink Off On On On

1 — — — —

Memory Card

Indications

7-seg. — — — — Paper Type

Paper Size Fit to Page — — — —

Card Access — — — —

Status Monitor 3 Message

2 — — — — 3 — — — —

1 — — — — 2 — — — — 1 — — — — 2 — — — —

This error is detected when the top of a paper is not detected with the PE Sensor in the paper loading sequence.

Fault Occurrence Cause

This error is detected when;

• The ink consumption amount reaches 100%.

• The ink cartridge is defective.

Note : The slight amount of the ink is remaining in the I/C even if the Ink Out error is detected. This is to prevent the Print Head nozzle from the printing operation without firing the ink.

This error is detected when data from CSIC cannot be read normally or when data cannot be written to CSIC.

This error is detected when;

• An unsupported ink cartridge has been installed.

• An ink cartridge with a different destination has been installed.

Note : “–” : Don’t care

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 85

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-3. Error Indications and Fault Occurrence Causes

Printer Status Paper jam Maintenance request Fatal error (Mechanism) Fat al error (System)

Power — Blink Blink Fast blink Error Blink On Blink Fast blink Ink Off On Blink Fast blink

1 — Blink Blink Fast blink

Memory Card

Indications

Status Monitor 3 Message

7-seg. — “E” blink “E” blink Fast “E” blink Paper Type

Paper Size Fit to Page — Blink Blink Fast blink

Card Access — — — —

2 — Blink Blink Fast blink 3 — Blink Blink Fast blink

1 — Blink Blink Fast blink 2 — Blink Blink Fast blink 1 — Blink Blink Fast blink 2 — Blink Blink Fast blink

Fault Occurrence Cause

Note : “–” : Don’t care

This error is detected when the PE Sensor cannot properly detect the paper bottom edge during feeding of paper.

This error is detected when the Waste Ink Counter exceeds the preset counter value.

This error is detected when it is determined that the printer cannot operate properly. (CR error, PF error, etc.)

This error is detected when;

• RAM is abnormal.

• System is operating poorly.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 86

EPSON Stylus Photo RX420/RX425/RX430 Revision A

3.3 Troubleshooting

You can identify the troubles by using the checklist in this section after confirming the LED indication on the SPC. If you connect the SPC to your PC and see an error message on the STM3, you can short the total repair time. And, when you find out the defective parts, replace them by referring the Chapter 4 “DISASSEMBLY AND ASSEMBLY”. The following tables describe the error check points.

Table 3-4. Check point for the communication error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Panel FFC is connected to the CN1 on the Panel Board.

1. Connect the Panel FFC to CN1 on the Panel Board.

• Power on

• Anywhere

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

Panel Unit

Panel Board

2. Check if the Panel FFC is not damaged. 2. Replace the Panel FFC with new one.

3. Check if the Panel Board is not damaged. 3. Replace the Panel Board with new one.

CN1

Panel FFC

TROUBLESHOOTING Troubleshooting 87

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-4. Check point for the communication error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the PS Board Connector Cable is connected to the CN1 on the Main Board.

Main Board

CN1

1. Connect the PS Board Connector Cable to CN1 on the Main Board.

• Power on

• Anywhere

• Operation

• –

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

When turning on the power, the power on sequence is performed correctly. But, when any printer job is sent to the SPC, a communication error is indicated with STM3.

PS Board Unit

USB Cable

Main Board Unit

2. Check if the PS Board Connector Cable/PS Board is not damaged.

PS Board Connector Cable

PS Board Unit

1. Check if the USB Cable is connected between the SPC and the PC.

1. Check if an incorrect model name is not stored into the address of the EEPROM on the Main Board.

2. Check if the Panel FFC is connected to the CN12 on the Main Board.

Main Board

CN12

Panel FFC

2. Replace the PS Board Unit with new one. * If the problem is not solved, replace the

Main Board with new one.

1. Connect the USB Cable to the SPC and the PC.

1. Use the Adjustment Program to write the correct value to the EEPROM address.

2. Connect the Panel FFC to the CN12 on the Main Board.

TROUBLESHOOTING Troubleshooting 88

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-5. Check point for the error before the initial ink charge according to each phenomenon

Occurrence

timing

CR position

• Power on

• Inside HP

• Power on

• Anywhere

Detailed phenomenon

The SPC does not perform the initial ink charge and an error is indicated with LEDs and STM3.

The SPC does not perform the ink replacement CL and an error is indicated with LEDs and STM3.

The SPC does not perform the printing operation and an error is indicated with LEDs and STM3.

Defective

unit/part name

Ink Cartridge

Main Board

Ink Cartridge

Check point Remedy

1. Check if the Ink Cartridge can be used by installing it to other SPC.

1. Check if an incorrect data is not stored into the address of the EEPROM on the Main Board.

1. Check if the Ink Cartridge can be used by installing it to other SPC.

1. Check if the ink is remaining in the Ink Cartridge. 1. Replace the Ink Cartridge with a brand-new

2. Check if the Ink Cartridge can be used by installing it to other SPC.

1. Replace the Ink Cartridge with a brand-new one.

1. Set the proper destination by using Adjustment Program.

1. Replace the Ink Cartridge with a brand-new one.

one.

2. Replace the Ink Cartridge with a brand-new one.

TROUBLESHOOTING Troubleshooting 89

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-6. Check point for the PG error according to each phenomenon

Occurrence

timing

CR position

• Operation

• –

Detailed phenomenon

This error is generated when using stand-alone copy.

Defective

unit/part name

Torsion Spring

19.01

PG Sensor

Check point Remedy

1. Check if the Torsion Spring 19.01 is properly installed. 1. Properly install the Torsion Spring 19.01. * Only when the Torsion Spring 19.01 comes

off while the PG lever is set to “H” position.

Torsion Spring 19.01

1. Check if the PG Sensor is not damaged. 1. Replace the PG Sensor with a new one.

PG Sensor

Main Board 1. Check if the Main Board is not damaged. 1. Replace the Main Board with a new one.

Table 3-7. Check point for the Index Sheet error (incorrect card) according to each phenomenon

Occurrence

timing

CR position

• Operation

• –

Detailed phenomenon

This error is generated when attempting to print from Index Sheet.

Defective

unit/part name

Index Sheet

Memory Card

Check point Remedy

1. Check if the Index Sheet was printed from an inserted

Memory Card.

1. Check if the Memory Card storing the Index Sheet data is

inserted.

2. Check if the Memory Card is not damaged. 2. Replace the Memory Card with a new one.

1. Switch to Index Sheet printed from an inserted Memory Card.

1. Insert Memory Card storing the Index Sheet data.

TROUBLESHOOTING Troubleshooting 90

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-8. Check point for the Index Sheet error (incorrect marking) according to each phenomenon

Occurrence

timing

CR position

• Operation

• –

Occurrence

timing

CR position

Detailed phenomenon

This error is generated when attempting to print from Index Sheet.

Table 3-9. Check point for the Index Sheet error (No index sheet) according to each phenomenon

Detailed phenomenon

Defective

unit/part name

Index Sheet

Defective

unit/part name

Index Sheet

Document Cover 1. Check if the Document Cover is not open. 1. Close the Document Cover.

1. Check if mark of Index Sheet has been properly covered over.

1. Check if the Index Sheet is set in the wrong way. 1. Set the Index Sheet correctly.

2. Check if the Index Sheet standard position is not clean. 2. Reprint the Index Sheet.

1. Check if the Document Glass is not clean. 1. Clean the Document Glass.

Check point Remedy

1. Properly cover over mark.

Check point Remedy

• Operation

• –

This error is generated when attempting to print from Index Sheet.

Scanner Housing

Upper

Document Glass

TROUBLESHOOTING Troubleshooting 91

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-10. Check point for the Memory Card error according to each phenomenon

Occurrence

timing

CR position

• Operation

• –

Occurrence

timing

CR position

Detailed phenomenon

The Memory Card is unrecognized and an error is displayed.

Table 3-11. Check point for the Double feed error according to each phenomenon

Detailed phenomenon

Defective

unit/part name

Memory Card

Main Board Unit

Defective

unit/part name

Check point Remedy

1. Check if the Memory Card is acceptable. 1. Replace the Memory Card with an acceptable

one.

2. Check if the Memory Card is not damaged. 2. Replace the Memory Card with a new one.

1. Check if the Memory Card slot pins on the Main Board is not bended.

Check point Remedy

1. Check if the Extension Spring Retard operates correctly in the paper loading sequence.

Extension Spring Retard

1. Change the Main Board Unit with a new one.

1. Set the Extension Spring Retard between the Retard Roller Unit and the ASF Frame.

• Operation

• –

After both surfaces were printed, the paper was ejected but an error is displayed.

ASF Unit

2. Check if the Paper Back Lever operates correctly in the paper loading sequence.

Paper Back LeverTorsion Spring 6.45

2. Set the Torsion Spring 6.45 between the ASF Frame and the Paper Back Lever.

TROUBLESHOOTING Troubleshooting 92

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-12. Check point for the paper out error according to each phenomenon

Occurrence

timing

CR position

• Operation

• –

Detailed phenomenon

The LD Roller cannot pick up paper although the LD Roller attempt to rotate correctly.

Defective

unit/part name

Holder Shaft Unit

Check point Remedy

1. Check if any paper dust is not adhered to the surface of the LD Roller.

LD Roller

1. Check if the Hopper operates correctly in the paper loading sequence.

Hopper

1. Set a cleaning sheet in the ASF Unit up side down. Then holding the top edge, try to load the paper from the Printer driver. The micro pearl on the LD Roller surface is removed. To remove severe smear, staple a cloth moistened with alcohol to a post card and clean the roller in the same manner.

Non-adhesive Area

CL Sheet

Adhesive Area

This side down

(Use a post card for the base sheet)

*If the problem is no t solved, replace the Holder shaft unit wi th new one.

Staplers

Cloth moistened with alcohol

1. Reassemble the Compression Spring 5.58 between the ASF Frame and the Hopper.

• Operation

• –

paper loading sequence although the LD Roller rotates to load paper from the

ASF Unit

ASF Unit.

The Hopper does not operate during the

Compression Spring

5.58

TROUBLESHOOTING Troubleshooting 93

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-12. Check point for the paper out error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Extension Spring 0.143 does not come off in the Clutch mechanism.

Extension Spring 0.143

1. Reassemble the Extension Spring 0.143 in the Clutch mechanism.

• Operation

• –

The drive of the PF Motor is not transmitted to the LD Roller Shaft.

Holder Shaft Unit

2. Check if the Clutch does not come off from the dowel of the LD Roller Shaft.

Clutch tooth

Dowel

3. Check if the Clutch tooth is not damaged. 3. Replace the Holder Shaft Unit with a new

4. Check if the Clutch is not damaged. 4. Replace the Holder Shaft Unit with a new

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

one.

TROUBLESHOOTING Troubleshooting 94

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-12. Check point for the paper out error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Compression Spring 2.36 does not come off in the Change Lever.

Change Lever

1. Replace the Ink System Unit with a new one.

• Operation

• –

• Operation

• –

The drive of the PF Motor is not transmitted to the LD Roller Shaft.

The LD Roller is not set to the ASF home position and paper is always loaded from the ASF Unit during the paper loading sequence.

Ink System Unit

Compression Spring 2.36

1. Check if the tip of the Change Lever is not damaged. 1. Replace the Ink System Unit with a new one.

Ink System Unit

TROUBLESHOOTING Troubleshooting 95

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-13. Check point for the No ink cartridge/CSIC error/Incorrect ink cartridge according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Ink Cartridge

Check point Remedy

1. Check if Ink Cartridge is properly installed. 1. Install the Ink Cartridge properly.

2. Check if the Memory Chip is not disconnected or not

2. Replace the Ink Cartridge with a new one.

chipped.

Memory Chip

• Power on

• Inside HP

After the Carriage has detected the HP, an error is displayed.

CSIC Board

CSIC Connector

1. Check if the Head FFC is connected to connector on the CSIC Board.

Head FFC

Connector

1. Connect the Head FFC to connector on the CSIC Board.

2. Check if the CSIC Board is not damaged. 2. Replace the Carriage Unit with a new one.

3. Check if the CSIC Connector is not damaged. 1. Replace the Carriage Unit with a new one.

CSIC Board

CSIC Connectors

TROUBLESHOOTING Troubleshooting 96

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-14. Check point for the paper jam error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

ASF Unit

Check point Remedy

1. Check if the ASF Unit is properly installed. 1. Install the ASF Unit properly.

2. Check if the Paper Back Lever operates correctly in the paper loading sequence.

Paper Back LeverTorsion Spring 6.45

2. Set the Torsion Spring 6.45 between the ASF Frame and the Paper Back Lever.

• Operation

• Outside HP

The paper feeding sequence is performed without loading paper in the paper loading sequence.

Holder Shaft Unit

1. Check if the Torsion Spring 0.22 is properly installed. 1. Set the Torsion Spring 0.22 between the

PE Sensor

Torsion

Spring 0.22

PE Sensor Lever

Holder Shaft and the PE Sensor Lever.

TROUBLESHOOTING Troubleshooting 97

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-14. Check point for the paper jam error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Extension Spring Retard operates correctly in the paper loading sequence.

Extension Spring Retard

1. Set the Extension Spring Retard between the Retard Roller Unit and the ASF Frame.

• Operation

• Outside HP

• Operation

• –

Paper is being resent during paper feeding operation.

When turning on the power, the Carriage Unit move to the home position correctly. But, the paper feeding sequence is performed without loading paper in the paper loading sequence.

The leading edge of paper does not go through between the EJ Roller Unit and the Star Wheel.

ASF Unit

1. Check if the Torsion Spring 0.22 is properly installed. 1. Set the Torsion Spring 0.22 between the Holder Shaft and the PE Sensor Lever.

Holder Shaft Unit*

1. Check if the EJ Frame Unit is correctly assembled. 1. Reassemble the EJ Frame Unit correctly.

EJ Frame Unit**

EJ Frame Unit

2. Check if the EJ Roller Unit is correctly assembled. 2. Reassemble the EJ Roller Unit correctly.

EJ Roller UnitSpur Gear 36

* The Carriage Unit can move to home position even if the Torsion Spring 0.22 comes off. However, the PE Sensor Lever keeps the high signal condition in the next operation. Therefore, the paper

jam error is detected.

** In case that the paper jam error occurs in each operation, the jammed paper contacts the nozzle surface of the Print Head and the Print Head may be damaged.

TROUBLESHOOTING Troubleshooting 98

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-14. Check point for the paper jam error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

The leading edge of paper does not go through between the EJ Roller Unit and the Star Wheel.

Defective

unit/part name

EJ Frame Unit**

Check point Remedy

3. Check if the Star Wheel Holders does not come off. 3. Reassemble the Star Wheel Holders

Star Wheel Holders

correctly.

• Operation

• –

The leading edge of paper is not loaded to the PF Roller Unit.

* The Carriage Unit can move to home position even if the Torsion Spring 0.22 comes off. However, the PE Sensor Lever keeps the high signal condition in the next operation. Therefore, the paper

jam error is detected.

** In case that the paper jam error occurs in each operation, the jammed paper contacts the nozzle surface of the Print Head and the Print Head may be damaged.

Paper Guide Upper

Unit **

4. Check if the Spur Gear 36 is not damaged. 4. Replace the EJ Frame Unit with a new one.

1. Check if the Paper Guide Upper Unit is correctly

assembled.

Paper Guide Upper Unit

1. Reassemble the Paper Guide Upper Unit to the Main Frame correctly.

TROUBLESHOOTING Troubleshooting 99

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-15. Check point for the Fatal error according to each phenomenon

Occurrence

timing

CR position

• Power on

• Anywhere

Detailed phenomenon

The Scanner Unit does not initialize when the power is turned on.

Defective

unit/part name

Scanner Motor

Check point Remedy

1. Check if the Scanner Motor Connector Cable is connected to CN10 on the Main Board.

CN10

Scanner Motor

Connector Cable

2. Check if the coil resistance of the Scanner Motor is about 37Ω by using the tester (refer to Table 3-1).

1. Connect the Scanner Motor Connector Cable to CN10 on the Main Board.

2. Replace the Scanner Motor with a new one.

Scanner Motor

3. Check if the Scanner Motor Connector Cable is not damaged.

3. Replace the Scanner Motor with a new one.

TROUBLESHOOTING Troubleshooting 100

EPSON Stylus Photo RX420/RX425/RX430 Revision A

Table 3-15. Check point for the Fatal error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

• Power on

• Anywhere

The Scanner Unit does not initialize when the power is turned on.

Scanner HP Sensor

1. Check if the Scanner HP Sensor Connector Cable is connected to CN13 on the Main Board.

CN13

Scanner HP Sensor

Connector Cable

2. Check if the Scanner HP Sensor Connector Cable is not damaged.

1. Connect the Scanner HP Sensor Connector Cable to CN13 on the Main Board.

2. Replace the Scanner HP Sensor with a new one.

3. Check if the Scanner HP Sensor is not damaged. 3. Replace the Scanner HP Sensor with a new one.

Scanner HP Sensor

1. Check if the Scanner Carriage FFC is connected to CN11

on the Main Board.

1. Connect the Scanner Carriage FFC to CN11 on the Main Board.

Scanner Carriage FFC CN11

Scanner Carriage

FFC

2. Check if the Scanner Carriage FFC is not damaged. 2. Replace the Scanner Carriage FFC with a new one.

TROUBLESHOOTING Troubleshooting 101

Epson Stylus Photo RX420, Stylus Photo RX425, Stylus Photo RX430 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRODUCT DESCRIPTION

1.1 Overview

1.1.1 Features

1.2 Specifications

1.2.1 Printer specifications

1.2.1.1 Physical Specification

1.2.1.2 Printing Specification

1.2.1.3 Paper Feed Specifications

1.2.1.4 Paper Support

1.2.1.5 Printing Area

1.2.1.6 Ink Cartridge Specification

1.2.2 Scanner specifications

1.2.2.1 Basic Specifications

1.2.2.3 Image scanning area

1.2.2.2 Detailed Specifications

1.2.3 Common

1.2.3.1 Electric Specification

1.2.3.2 Environmental Performance

1.2.3.3 Durability

1.2.3.4 Safety Standards: EMC

1.2.3.5 Acoustic Noise

1.2.3.6 CE Marking

1.3 Interface

1.3.1 USB Interface

1.3.2 Standard Card Slots

1.3.2.1 Memory card

1.3.2.2 Supported power supply voltage

1.3.2.3 Multi-slot operations

1.4 Stand-alone Copy

1.4.1 Basic Specifications

1.4.1.1 Supported paper sizes, types and qualities

1.4.1.2 Zoom function

1.4.1.3 Number of copies setting

1.4.1.4 Maximum copy size

1.4.1.5 Copy layout

1.4.1.6 Multiple copies from an original

1.4.2 Copy Speed

1.4.2.1 Black Copy Speed

1.4.2.2 Color Copy Speed

1.4.3 Configuration for copying

1.4.4 Relation between original and copy

1.4.4.1 Standard copy

1.4.4.2 BorderFree Copy

1.4.4.3 Small Margins copy

1.5 Memory Card Print

1.5.1 Basic Specifications

1.5.1.1 File system

1.5.1.2 Media format

1.5.1.3 File formats

1.5.1.4 Valid image size

1.5.1.5 Maximum number of photo data files

1.5.1.6 Thumbnail image data

1.5.1.7 File sorting

1.5.1.8 File sorting rules

1.5.1.9 Rules for acquisition of date/time data

1.5.2 Functions

1.5.2.1 List of functions

1.5.1.10 Number of sheets which can be printed in total

1.5.2.2 Memory card printing mode

1.5.3 Index Sheet

1.5.3.1 Rules for scanning index sheets (TBD)

1.5.4 Layout and Paper Type, Paper Size

1.5.5 Options

1.5.6 Trimming Function

1.5.7 Assignment Rules for Photo Frame Numbers and Rotation

1.5.8 Layout Drawings

1.5.8.1 Border free

1.5.8.2 1-up with borders

1.5.8.3 20-up

1.5.8.4 80-up

1.5.9 Relation between Paper Type and Quality

1.6 Control Panel

1.6.1 Buttons

1.6.2 Indicators

1.6.3 Operations

1.6.3.1 Stand-alone Copy / Memory Card Print