Epson Stylus Photo RX680, Stylus Photo RX685, Stylus Photo RX690 Service Manual

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SERVICE MANUAL

Color Inkjet Printer

Stylus Photo RX680/RX685/RX690

SEMF07008

PRECAUTIONS

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

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by

DANGER Headings.

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

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

DANGER

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

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

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

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

About This Manual

CAUTION

CHECK

POINT

REASSEMBLY

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 Epsonapproved lubricants and adhesives required for servicing the product.

APPENDIX Provides the following additional information for reference:

• Electrical circuit boards schematics

Symbols Used in this Manual

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

ADJUSTMENT

REQUIRED

WARNING

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

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

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

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

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

Revision Status

Revision Date of Issue Description

A August 3, 2007 First Release

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CONTENTS

Chapter 1 PRODUCT DESCRIPTION

1.1 Features............................................................................................................... 10

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

1.2.1 Basic Specifications................................................................................. 11

1.2.2 Ink Cartridge............................................................................................ 11

1.2.3 Print Mode ............................................................................................... 12

1.2.4 Supported Paper....................................................................................... 13

1.2.5 Printing Area ........................................................................................... 16

1.3 Scanner Specifications........................................................................................ 16

1.4 General Specifications........................................................................................ 17

1.4.1 Electrical Specifications .......................................................................... 17

1.4.2 Safety Approvals (Safety standards/EMI)............................................... 17

1.4.3 Acoustic Noise......................................................................................... 17

1.4.4 Durability................................................................................................. 17

1.4.5 Environmental Conditions....................................................................... 18

1.5 Interface.............................................................................................................. 18

1.5.1 USB Interfaces......................................................................................... 18

1.5.2 Memory Card Slots.................................................................................. 19

1.6 Control Panel ...................................................................................................... 20

1.6.1 Operation Buttons & LED....................................................................... 20

1.7 Specifications of Each Function......................................................................... 21

1.7.1 Stand-alone Copy Function ..................................................................... 21

1.7.2 Memory Card Direct Print Function........................................................ 21

1.7.3 Backup Function...................................................................................... 22

1.7.4 Camera Direct Print Function (USB Direct Print/PictBridge) ................ 23

1.7.5 Speciality Print Functions........................................................................ 23

1.7.6 Setup Mode.............................................................................................. 23

Chapter 2 OPERATING PRINCIPLES

2.1 Overview ............................................................................................................ 26

2.1.1 Printer Mechanism .................................................................................. 26

2.1.2 Motors and Sensors ................................................................................. 26

2.2 Printer Mechanism Operating Principles ........................................................... 28

2.2.1 Printhead.................................................................................................. 28

2.2.2 Carriage Mechanism................................................................................ 28

2.2.3 APG Mechanism ..................................................................................... 30

2.2.4 Paper Loading/Feeding Mechanism........................................................ 33

2.2.5 CD-R Mechanism.................................................................................... 45

2.2.6 Ink System............................................................................................... 49

2.2.7 Scanner Unit ............................................................................................ 50

2.3 Electrical Circuits Operating Principles ............................................................. 51

2.3.1 Features ................................................................................................... 51

2.3.2 Circuit Board Components...................................................................... 52

2.3.3 Main Board Circuit Block Diagram ........................................................ 53

2.4

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

. 54

Chapter 3 TROUBLESHOOTING

3.1 Overview ............................................................................................................ 56

3.1.1 Troubleshooting on Motors and Sensors ................................................. 56

3.2 Error/Warning Indications.................................................................................. 57

3.2.1 List of Error Indications .......................................................................... 57

3.3 Troubleshooting.................................................................................................. 59

3.3.1 Troubleshooting with Error Indications .................................................. 59

3.4 Troubleshooting by Symptom (no error indications) ......................................... 78

3.4.1 Troubleshooting Printer Mechanism Problems....................................... 78

3.4.2 Troubleshooting Electrical Problems ...................................................... 81

3.4.3 Troubleshooting Ink Supply Problems .................................................... 81

3.4.4 Troubleshooting I/F-related Problems..................................................... 83

3.5 Troubleshooting for Scanner.............................................................................. 84

3.6 Troubleshooting Duplex Unit Problems............................................................. 86

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Chapter 4 DISASSEMBLY AND ASSEMBLY

4.1 Overview ............................................................................................................ 88

4.1.1 Precautions .............................................................................................. 88

4.1.2 Tools ........................................................................................................ 89

4.1.3 Screws...................................................................................................... 89

4.1.4 Work Completion Checklist .................................................................... 90

4.1.5 Required Preparation before Disassembly .............................................. 91

4.1.6 Orientation Definition ............................................................................. 91

4.1.7 How to Unlock the Carriage.................................................................... 91

4.1.8 Disassembly Flowchart ........................................................................... 92

4.2 Removing Exterior Parts/Components ............................................................... 94

4.2.1 Paper Support Assy ................................................................................. 94

4.2.2 Rear Cover/Automatic Duplex Unit........................................................ 94

4.2.3 Cassette Assy........................................................................................... 95

4.2.4 Front ASF Cover Assy ............................................................................ 96

4.2.5 Panel Unit/Upper Housing ...................................................................... 96

4.2.6 Scanner Unit .......................................................................................... 100

4.2.7 Hinge Assy ............................................................................................ 102

4.3 Disassembling the Scanner Unit....................................................................... 103

4.3.1 Document Cover/ASF Cover ................................................................ 103

4.3.2 Scanner Housing.................................................................................... 103

4.3.3 CIS Unit................................................................................................. 104

4.3.4 CR Motor Unit....................................................................................... 105

4.4 Removing Control Boards................................................................................ 106

4.4.1 Main Board Assy................................................................................... 106

4.4.2 Disassembling the Main Board Assy .................................................... 107

4.4.3 Disassembling the Panel Unit................................................................ 108

4.5 Disassembling the Major Parts/Components.................................................... 110

4.5.1 Middle Housing ..................................................................................... 110

4.5.2 Power Supply Unit ................................................................................ 113

4.5.3 Stacker Assy .......................................................................................... 114

4.5.4 Printer Mechanism................................................................................. 114

4.5.5 CR Scale ................................................................................................ 117

4.5.6 Printhead................................................................................................ 118

4.5.7 APG Assy/Sub Board/ASF Encoder/Retard ASF Assy ........................ 120

4.5.8 Waste Ink Pads/Foot.............................................................................. 123

4.5.9 EJ Frame Assy/CDR Guide Assy.......................................................... 124

4.5.10 PF Encoder .......................................................................................... 127

4.5.11 PF Motor.............................................................................................. 128

4.5.12 CR Motor............................................................................................. 129

4.5.13 Carriage Assy ...................................................................................... 130

4.5.14 Paper Guide Upper L/R....................................................................... 133

4.5.15 Paper Guide Rear/PE Sensor............................................................... 134

4.5.16 Rear ASF Assy/Change Lever ............................................................ 135

4.5.17 ASF Sub Motor/RH Sensor/RP Sensor ............................................... 137

4.5.18 LD roller/Retard Roller ....................................................................... 139

4.5.19 Ink System........................................................................................... 142

4.5.20 ASF Motor Assy.................................................................................. 143

4.5.21 Rear Frame Assy ................................................................................. 144

4.5.22 Paper Guide Front & EJ Roller Assy/PF Roller Assy......................... 145

4.5.23 Paper Guide Bank Assy....................................................................... 149

4.5.24 Paper Guide Lower Assy..................................................................... 150

Chapter 5 ADJUSTMENT

5.1 Adjustment Items and Overview...................................................................... 152

5.1.1 Servicing Adjustment Item List ............................................................ 152

5.1.2 Required Adjustments ........................................................................... 155

5.2 Adjustment by Using Adjustment Program ..................................................... 157

5.2.1 Top Margin Adjustment (Rear/Front) ................................................... 157

5.2.2 Head Angular Adjustment..................................................................... 157

5.2.3 Bi-D Adjustment ................................................................................... 158

5.2.4 First Dot Position Adjustment (Front/Rear) .......................................... 159

5.2.5 PW Adjustment ..................................................................................... 159

5.2.6 PF Adjustment (Rear/Front).................................................................. 160

5.3 Adjustment without Using Adjustment Program ............................................. 161

5.3.1 PG Adjustment ...................................................................................... 161

5.3.2 PF Belt Tension Adjustment ................................................................. 163

5.3.3 FD Belt Tension Adjustment................................................................. 164

5.4 Scanner Original Adjustment ........................................................................... 165

5.5 Banding Reduction System (BRS) Adjustment / Paper Feed Amount Profile (PFP)

Correction ......................................................................................................... 168

5.5.1 Overview ............................................................................................... 168

5.5.2 Adjustment Procedure ........................................................................... 170

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Chapter 6 MAINTENANCE

6.1 Overview .......................................................................................................... 174

6.1.1 Cleaning................................................................................................. 174

6.1.2 Service Maintenance ............................................................................. 174

6.1.3 Lubrication ............................................................................................ 175

Chapter 7 APPENDIX

7.1 Connectors........................................................................................................ 184

7.2 Exploded Diagram / Parts List ......................................................................... 188

7.3 Electrical Circuits ............................................................................................. 188

PRODUCT DESCRIPTION

CHAPTERA

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.1 Features

Stylus Photo RX680/RX685/RX690 are multi-featured color inkjet printers designed for semiprofessional and home use. The main features are;

 Printing

High speed and high quality on plain paper is achieved. Newly developed dye ink is employed, which offers excellent resistance to light, water, gas, and is less prone to smear.

• In addition to print from a PC, offers direct print from a memory card.

• Automatic duplex printing using the optional duplex unit (equipped as standard for EAI model)

• Direct print on a CD/DVD

• Equipped with two paper feeders; front cassette and rear ASF.

 Scanning

Employing CIS sensor offers faster scanning with no warm-up time and achieved compact body.

• Scanning from a PC

• Offers a function that directly stores a scan data to a memory card.

 Stand-alone copy

High quality copy using the printing and scanning functions. Offers eight or 11 (with the duplex unit) preset copy layouts.

 Memory card slot

Accessible from a PC as a USB memory card slot.

 Color LCD

2.5-inch TFT color LCD for excellent ease of operation

 USB interfaces

• Enables to print images in an external storage device.

• Backup copy of a memory card can be made on an external media

• Offers camera direct print (PictBridge, USB Direct Print)

 Wireless communication

Mounting the optional Bluetooth unit offers wireless communication with an external device.

 Dimensions

 Dimensions:446 mm (W) x 432 mm (D) x 237 mm (H)

(with the ASF and stacker closed. Excludes the duplex unit)

 Weight: 12.0 kg

(Excludes ink cartridges, CDR tray, duplex unit and power cable)

Figure 1-1. External View

PRODUCT DESCRIPTION Features 10

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CAUTION

1.2 Printing Specifications

1.2.1 Basic Specifications

Table 1-1. Printer Specifications

Item Specifications

Print method On-demand ink jet

Black: 90 nozzles x 1

Nozzle configuration

Print direction Bi-directional minimum distance printing (logic seeking)

Print resolution

Control code

Internal font

Input buffer size 64 Kbytes

Paper feed method Friction feed

Paper path

Paper feed rates T.B.D. mm/sec (at 25.4 mm feed)

PF interval Programmable in 0.01764 mm (1/1440 inch) steps

Color: 90 nozzles x 5

(Cyan, Magenta, Yellow, Light Cyan, Light Magenta)

Horizontal x Vertical (dpi)

• 360 x 180

• 360 x 360

• 720 x 360

• ESC/P Raster command

• ESC/P-R (RGB) command

• EPSON Remote command

Character code: Alphanumeric with expanded graphics (PC437)

Font: EPSON original font

• Top feed, front out (front paper cassette)

• Front feed, front out (rear ASF)

• 720 x 540

• 720 x 720

• SMGA 5760 x 1440 (1440 x 1440)

ASCII, 20H to 7FH only

Alphanumeric font: Courier

1.2.2 Ink Cartridge

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

Table 1-2. Product No. of Ink Cartridges

Color EAI Euro Asia, CISMEA

Black

Cyan

Magenta

Yellow

Light Cyan

Light Magenta

T0771 (S)

T0781 (SS)

T0772 (S)

T0782 (SS)

T0773 (S)

T0783 (SS)

T0774 (S)

T0784 (SS)

T0775 (S)

T0785 (SS)

T0776 (S)

T0786 (SS)

T0801

T0802

T0803

T0804

T0805

T0806

 Shelf life

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

 Storage Temperature

Table 1-3. Storage Temperature

Situation Storage Temperature Limit

When stored in individual boxes

When installed in main unit

-20 oC to 40 oC (-4oF to 104oF)

-20 oC to 40 oC

(-4oF to 104oF)

1 month max. at 40 oC (104oF)

 Dimension

T0811 (S)

T0821 (SS)

T0812 (S)

T0822 (SS)

T0813 (S)

T0823 (SS)

T0814 (S)

T0824 (SS)

T0815 (S)

T0825 (SS)

T0816 (S)

T0826 (SS)

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



Do not use expired ink cartridges.

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

about three hours under 25 °C (77

F) until the ink thaws and

becomes usable.

PRODUCT DESCRIPTION Printing Specifications 11

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.2.3 Print Mode

Table 1-4. Print Mode (Color/Monochrome)

Media Print Mode

• Plain paper

• Premium Bright White Paper (EAI)

• Bright White Inkjet Paper (others)

• Ultra Premium Glossy Photo Paper (EAI)

• Ultra Glossy Photo Paper (others)

• Photo Paper Glossy (EAI)

• Glossy Photo Paper (others)

• Premium Photo Paper Glossy (EAI)

• Premium Glossy Photo Paper (others)

• Premium Photo Paper Semi-Gloss (EAI)

• Premium Semigloss Photo Paper (other)

• Premium Presentation Paper Matte (EAI)

• Matte Paper Heavyweight (others)

Resolution

(H x V) dpi

Draft 1

(Fast economy)

Draft 2

(Economy)

360x180

Normal 360x360

Photo Fine 720x720

Photo*

(1.0 pass)

720x720

(2.0 pass)

720x720

Super Photo 1440x1440

Fine 720x360

Photo*

(1.0 pass)

720x720

(2.0 pass)

720x720

Super Photo 1440x1440

Photo

720x720

(2.0 pass)

Super Photo 1440x1440

Dot Size

(cps*1)

Eco

(450cps)

Eco

(450cps)

MC2-1

(360cps)

MC1-1

(240cps)

MC1-2

(240cps)

MC2-2

(280cps)

MC1-5

(200cps)

MC1-1

(240cps)

MC1-2

(240cps)

MC2-2

(280cps)

MC1-5

(200cps)

MC2-2

(280cps)

MC1-5

(200cps)

Bi-d

Micro

Weave

ON OFF

ON ON

Border

-less

Table 1-4. Print Mode (Color/Monochrome)

Media Print Mode

Resolution

(H x V) dpi

• Presentation Paper Matte (EAI)

• Photo Quality Inkjet

Photo

720x720

(2.0 pass)

Paper (others)

Normal 360x360

Envelope

Photo Fine 720x720

Photo stickers

Photo

720x720

(2.0 pass)

• Iron-On Transfer Paper (EAI)

• Iron-On Cool Peal

Photo Fine 720x720 Transfer Paper (others)

CD/DVD label

High-quality CD/DVD label

Super Photo 1440x1440

Note *1: cps = character per second

*2 : Photo mode uses 1.0 pass or 2.0 pass depending on the paper size.

1.0 pass supported size: 4”x6”

2.0 pass supported size: 5”x7”, 8”x10”, Letter, A4

Dot Size

(cps*

MC2-2

(280cps)

MC2-1

(360cps)

MC1-1

(240cps)

MC2-2

(280cps)

MC1-1

(240cps)

MC1-5

(200cps)

MC1-5

(200cps)

)

Bi-d

Micro

Weave

ON ON

OFF OFF

OFF ON

ON ON

OFF ON

ON ON

Border

-less

PRODUCT DESCRIPTION Printing Specifications 12

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.2.4 Supported Paper

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

Table 1-5. Supported Paper

Paper Name Paper Size

Legal 215.9 x 355.6 mm (8.5”x14”)

Thickne

mm g/m

Weight EAI EUR Asia Paper Path

lb. P*1B*2D*3P*1B*2D*3P*1B*2D*3F*4R*

Y - - Y - - Y - - - Y

Letter 215.9 x 279.4 mm (8.5”x11”) Y - Y Y - Y Y - Y Y Y

A4 210 x 297 mm (8.3”x11.7”) Y - Y Y - Y Y - Y Y Y

B5 182 x 257 mm (7.2”x10.1”) - - Y Y - Y Y - Y Y Y

Plain paper

A5 148 x 210 mm (5.8”x8.3”) - - - Y - - Y - - Y Y

0.08-

0.11

64-90 17-24

Half Letter 139.7 x 215.9 mm (5.5"x8.5”) Y - - - - - - - - - -

A6 105 x 148 mm (4.1”x5.8”) Y - - Y - - Y - - Y Y

User Defined

89 x 127- 216 x 297 mm

50.8x127 - 216x1117.9 mm

Y - - Y - - Y - - Y*6Y

Premium Inkjet Plain Paper A4 210 x 297 mm (8.3”x11.7”) 0.11 80 21 - - - Y - Y Y - Y Y Y

Premium Bright White Paper (EAI) Letter 215.9 x 279.4 mm (8.5”x11”) 0.11 90 24 Y - Y - - - - - - Y Y

Bright White Inkjet Paper (others) A4 210 x 297 mm (8.3”x11.7”) 0.13 92.5 25 - - - Y - Y Y - Y Y Y

Letter 215.9 x 279.4 mm (8.5”x11”)

Y Y - - - - - - - Y Y

A4 210 x 297 mm (8.3”x11.7”) - - - Y Y - Y Y - Y Y

Ultra Premium Photo Paper Glossy (EAI) Ultra Glossy Photo Paper (others)

8” x 10” 203.2 x 254 mm Y Y - - - - - - - Y Y

0.30 290 77

5” x 7” 127 x 178 mm Y Y - Y Y - - - - Y Y

4” x 6” 101.6 x 152.4 mm Y Y - Y Y - Y Y - Y Y

Note *:*1: indicates whether the paper type/size is supported or not. *2: indicates whether Borderless printing is available or not. *3: indicates whether duplex printing is available or not.

*4: indicates whether the paper type/size is supported for front feeding (front cassette). *5: indicates whether the paper type/size is supported for rear feeding (rear ASF). The underlined “Y

” indicates the default feeder. *6,*7: the available user defined size differs between the front and the rear feeders. *6 indicates the value for the front feeder, and *7 indicates that for the rear.

PRODUCT DESCRIPTION Printing Specifications 13

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 1-5. Supported Paper

Paper Name Paper Size

Letter 215.9 x 279.4 mm (8.5”x11”)

Thickne

mm g/m

Weight EAI EUR Asia Paper Path

lb. P*1B*2D*3P*1B*2D*3P*1B*2D*3F*4R*

Y Y - - - - - - - Y Y

A4 210 x 297 mm (8.3”x11.7”) Y Y - Y Y - Y Y - Y Y

Premium Photo Paper Glossy (EAI) Premium Glossy Photo Paper (others)

8” x 10” 203.2 x 254 mm Y Y - - - - - - - Y Y

0.27 255 68

5” x 7” 127 x 178 mm Y Y - Y Y - Y Y - Y Y

4" x 6

101.6 x 152.4 mm Y Y - Y Y - Y Y - Y Y

16:9 wide 102 x 181 mm (4”x7.11”) - - - Y - - - - - Y Y

Photo Paper Glossy (EAI) Glossy Photo Paper (others)

Letter 215.9 x 279.4 mm (8.5”x11”)

A4 210 x 297 mm (8.3”x11.7”) Y Y - Y Y - Y Y - Y Y

0.25 258 68

5” x 7” 127 x 178 mm - - - Y Y - - - - Y Y

Y Y - - - - - - - Y Y

4” x 6” 101.6 x 152.4 mm Y Y - Y Y - Y Y - Y Y

Premium Photo Paper Semi-gloss (EAI) Premium Semigloss Photo Paper (others)

Letter 215.9 x 279.4 mm (8.5”x11”)

A4 210 x 297 mm (8.3”x11.7”) - - - Y Y - Y Y - Y Y

0.27 250 66

Y Y - - - - - - - - -

4” x 6” 101.6 x 152.4 mm Y Y - Y Y - Y Y - Y Y

Ultra Premium Photo Paper Luster Letter 215.9 x 279.4 mm (8.5”x11”) 0.27 250 66 Y Y - - - - - - - Y Y

Premium Presentation Paper Matte (EAI)

Matte Paper Heavy-weight (others)

Letter 215.9 x 279.4 mm (8.5”x11”)

A4 210 x 297 mm (8.3”x11.7”) - - - Y Y - Y Y - Y Y

0.23 167

Y Y - - - - - - - Y Y

8” x 10” 203.2 x 254 mm Y Y - - - - - - - Y Y

Double-sided Matte Paper

Letter 215.9 x 279.4 mm (8.5”x11”)

0.22 185 49

Y - - - - - - - - Y Y

A4 210 x 297 mm (8.3”x11.7”) - - - Y - - Y - - Y Y

Presentation Paper Matte (EAI) Photo Quality Inkjet Paper (others)

Note *:*1: indicates whether the paper type/size is supported or not. *2: indicates whether Borderless printing is available or not. *3: indicates whether duplex printing is available or not.

*4: indicates whether the paper type/size is supported for front feeding (front cassette). *5: indicates whether the paper type/size is supported for rear feeding (rear ASF). The underlined “Y

” indicates the default feeder.

Letter 215.9 x 279.4 mm (8.5”x11”)

0.12 102 27

A4 210 x 297 mm (8.3”x11.7”) Y - - Y - - Y - - Y Y

Y - - - - - - - - Y Y

PRODUCT DESCRIPTION Printing Specifications 14

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 1-5. Supported Paper

Envelopes

Paper Name Paper Size

#10

104.8 x 241.3 mm (4.125”x9.5”)

#DL 110 x 220 mm - - - Y - - Y - - - -

Thickne

mm g/m

- 75-90 20-24

Weight EAI EUR Asia Paper Path

lb. P*1B*2D*3P*1B*2D*3P*1B*2D*3F*4R*

Y - - Y - - Y - - - -

#C6 114 x 162 mm - - - Y - - Y - - - -

Iron-On Transfer Paper (EAI)

Iron-On Cool Peal Transfer Paper (others)

Letter 215.9 x 279.4 mm (8.5”x11”)

0.14 130 35

A4 210 x 297 mm (8.3”x11.7”) - - - Y - - Y - - - Y

Y - - - - - - - - - Y

Photo Stickers 16 A6 105 x 148 mm (4.1”x5.8”) 0.19 - - - - - - - Y - - - Y

Photo Stickers 4 A6 105 x 148 mm (4.1”x5.8”) 0.19 - - - - - - - Y - - - Y

CD/DVD

CD/DVD Premium Surface

Note *:*1: indicates whether the paper type/size is supported or not. *2: indicates whether Borderless printing is available or not. *3: indicates whether duplex printing is available or not.

*4: indicates whether the paper type/size is supported for front feeding (front cassette). *5: indicates whether the paper type/size is supported for rear feeding (rear ASF). The underlined “Y

CAUTION

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

” indicates the default feeder. *8: using the CD/DVD tray.

ø12cm ø12cm - - Y - - Y - - Y - - Y

ø8cm ø8cm - - Y - - Y - - Y - - Y

 The curve of paper must be 5 mm or below.  When printing on an envelope, be sure the flap is folded neatly.  Do not use the adhesive envelopes.  Do not use double envelopes and cellophane window envelopes.

PRODUCT DESCRIPTION Printing Specifications 15

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Print Area

LM RM

Cut Sheet (Standard)

Cut Sheet (Borderless)

Paper SIze

Print Area

LM RM

Print Area

Envelope

Paper Size

Paper Feed Direction

OTM

OLM

Scanning start position

Home position

Scanning range

Scan bed

Original (face down)

Scanning direction

1.2.5 Printing Area

The printing area for this printer is shown below.

Table 1-6. Printing Area (Margins)

Print Mode Paper Size

Standard print

Borderless print

Note* : The margins for Borderless print are margins that bleed off the edges of paper.

Any size

Envelope

A4/Letter to 5” x 7”

4” x 6”

Left Right Top Bottom

3 mm 3 mm 3 mm 3 mm

5 mm 5 mm 3 mm 20 mm

2.54 mm* 2.54 mm*

Margin

2.96 mm* 4.02 mm*

1.34 mm* 2.54 mm*

1.3 Scanner Specifications

Table 1-7. Scanner Specifications

Item Specification

Scanner type Flatbed, color

Scanning method Moving carriage, stationary document

Home position Far left corner

Photoelectric device CIS

Light source LED

Maximum document size US letter, or A4 size

Scanning range 8.5 x 11.7 inches (216 x 297 mm)

Maximum resolution Main scan: 1200 dpi / Sub scan: 2400 dpi

Maximum effective pixels 10,200 x 14,040 pixels (1200dpi)

Pixel depth 16 bit per pixel (input), 1 or 8 bit per pixel (output)

SCANNING RANGE

Table 1-8. Scanning Range

RW (read width) OLM (left margin) RL (read length) OTM (top margin)

216 mm (8.5”) 1.5 mm +/- 1 mm 297 mm (11.7”) 1.5 mm +/- 1 mm

PRODUCT DESCRIPTION Scanner Specifications 16

Figure 1-2. Printing Area

Figure 1-3. Scanning Range

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.4 General Specifications

1.4.1 Electrical Specifications

Table 1-9. Primary Power Specifications

Item 100-120 V model 220-240 V model

Rated power supply voltage 100 to 120 VAC 220 to 240 VAC

Input voltage range 90 to 132 VAC 198 to 264 VAC

Rated current 0.6 A (Max 1.2 A) 0.3 A (Max 0.6 A)

Rated frequency 50 to 60 Hz

Input frequency range 49.5 to 60.5 Hz

Insulation resistance 3000 V (for one minute)

Standalone copying 20 W 20 W

Power consumption

Note : If the printer is not operated for more than three minutes, the printer shifts into the

Low Power Mode 7.5 W 8 W

Sleep Mode 4 W 4.5 W

Powered off Mode 0.3 W 0.6 W

standby mode and reduces the current to the motor to conserve power.

1.4.2 Safety Approvals (Safety standards/EMI)

USA UL60950-1

FCC Part15 Subpart B Class B

Canada CAN/CSA-CEI/IEC CISPR 22 Class B

CAN/CSA-C22.2 No.60950-1

Taiwan CNS13438 Class B

CNS14336

EU EN60950-1

EN55022 Class B EN61000-3-2, EN61000-3-3

EN55024 Germany EN60950-1 Russia GOST-R (IEC60950-1, CISPR 22) Singapore/Hong Kong IEC60950-1 Korea K60950-1

KN22 Class B

K61000-4-2/-3/-4/-5/-6/-11 China GB4943

GB9254 Class B, GB17625.1 Australia AS/NZS CISPR22 Class B

1.4.3 Acoustic Noise

36 dB (when printing from PC, on Premium Glossy Photo Paper, in the highest quality)

45 db (when copying on plain paper in the default mode)

1.4.4 Durability

 Total print life

Black 16,000 pages (A4, 3.5% duty), Color 10,000 pages (A4, 5.0% duty), or five years which ever comes first

 Printhead

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

 Scanner carriage

36,000 cycles of carriage movement

PRODUCT DESCRIPTION General Specifications 17

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CAUTION

10/50

27/80

35/9520/68

Temperature (°C/°F)

Humidity (%)

30/86 40/104

1.4.5 Environmental Conditions

Table 1-10. Environmental Conditions

Condition Temperature

Operating

Storage

(unpacked)

Note *1 : The combined Temperature and Humidity conditions must be within the blue-shaded

range shown in

*2 : No condensation

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

10 to 35°C

(50 to 95

-20 to 40°C

(-4°F to 104°F)

°F)

Figure 1-4.

Humidity

20 to 80%

5 to 85%

*1,2

Shock Vibration

(1 msec or less)

(2 msec or less)

10 to 55Hz

0.15G,

0.50G, to 55Hz

1.5 Interface

The printer has USB interfaces and memory card slots of the following specifications.

1.5.1 USB Interfaces

The printer has two USB ports; USB Device port for connecting with a host device such as a computer, and USB Host port for connecting with an external device such as DSC (Digital Still Camera).

Table 1-11. USB Interface Specification

Item USB Device Port USB Host Port*

Standards

Transfer rate

Data format

Compatible connector

• Universal Serial Bus Specifications Revision 2.0

• Universal Serial Bus Device Class Definition for Printing Devices Version 1.1

• Universal Serial Bus Mass Storage Class Bulk-Only Transport Revision 1.0

480Mbps (High Speed Device)

USB Series B USB Series A

• Universal Serial Bus Specifications Revision 2.0

• Universal Serial Bus Mass Storage Class Bulk-Only Transport Revision 1.0

NRZI

Maximum cable length

Note* : The following devices can be connected to the USB Host port.

Figure 1-4. Temperature/Humidity Range

 When returning the repaired printer to the customer, make sure

the Printhead is covered with the cap and the ink cartridge is installed.

 If the Printhead is not covered with the cap when the printer is

off, turn on the printer with the ink cartridge installed, make sure the Printhead is covered with the cap, and then turn the printer off.

PRODUCT DESCRIPTION Interface 18

• DSC compliant with USB Direct Print Protocol Specification Rev1.0.

• DSC compliant with CIPA DC-001-2003 (PictBridge) Specification.

• Devices compliant with Universal Serial Bus Mass Storage Class Bulk-Only Transport Revision 1.0, and the Subclass code is one of the followings. 0x06 (SCSI transparent command set) 0x05 (SFF-8070i command set) 0x02 (SFF-8020i command set)

Less than 2 m

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.5.2 Memory Card Slots

Table 1-12. List of Supported Memory Card

Priority

Slot Compatible memory card Standard

Memory Stick “MemoryStick Standard” Format Specification Ver.1.42-00 compatible 128MB Includes versions with memory select function

MagicGate Memory Stick 128MB Copy protection function is not supported

MagicGate Memory Stick Duo An adapter should be used

Memory Stick/ Memory Stick PRO

SD/MMC

xD-Picture card xD-Picture card xD-Picture Card Specification Ver.1.20 compatible 2GB Type M/H supported

CF Type II

Memory Stick PRO Memory Stick PRO Format Specifications-without security Ver.1.02-00 compatible 4GB Copy protection function is not supported

Memory Stick Duo MemoryStick Duo Format Specification Ver.1.11-00 compatible

Memory Stick Pro Duo MemoryStick PRO Duo Format Specification Ver.1.02-00 compatible

Memory Stick micro Memory Stick Micro Format Specification Ver.1.02-00 compatible

SD (Security Digital)

miniSD/microSD The SD adapter should be used

SDHC

miniSDHC/microSDHC

MultiMediaCard MultiMediaCard Plus

Compact Flash CF+ and CompactFlash Specification Revision 3.0 compatible 4GB True-IDE compatible memory card only

Microdrive

SD Memory Card Specifications / PART1. Physical Layer Specification Ver. 2.0 compatible

MultiMediaCard Standard Ver. 4.1 compatible

Max.

capacity

2GB

8GB

64MB/

4GB

Remarks

The Memory Stick Duo adapter should be

used

The Memory Stick Duo adapter should be

used.

The Memory Stick adapter for standard size should be used.

Speed Class is not supported

The SD adapter should be used

Speed Class is not supported

Only MultiMediaCard Plus supports 4GB

Note: • Memory Stick/PRO, SD/MMC and xD-Picture Card shares the same slot.

• When cards are inserted in the two slots at once, the slot which will be accessed first is determined according to the priority shown in the table.

• To select a card that has been inserted in a non-active slot, first remove the card in the active slot.

• In memory card direct printing mode, 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 inserted in another nonselected slot.

• When the card inserted in the slot is accessed from the PC, 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. (This is for Windows. For Macintosh, the card in the active slot will be mounted on the desktop.)

• Does not support 5V type of memory cards.

• When a memory card is being accessed, do not touch the memory card.

• For detailed information on the supported file system and formatting the memory card, refer to “ 1.7.2 Memory Card Direct Print Function ( p. 21 ) ”.

PRODUCT DESCRIPTION Interface 19

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Memory card Button

Specialty Print Button

Power Button

Menu Button

Power LED

LCD

CD Print Tray Button

Power Button

Setup Button

Display/Crop Button

Mode LED

Stop / Clear settings Button

Start Button

Back Button

OK Button and Cross buttons

+ Button

- Button

1.6 Control Panel

1.6.1 Operation Buttons & LED

The following tables explain the functions of the buttons and LEDs on the control panel.

Table 1-13. Operation Buttons & LEDs

Button/LED Function

Power Turns the power ON/OFF.

Start Starts printing.

Copy Goes to the stand alone copy mode.

Memory Card Goes to the memory card direct print mode.

Specialty Print

Stop/Clear

Button

Setup

Display/Crop

Menu Goes to the print setting menu screen.

OK Accepts the changed settings.

Back Cancels the previous operation.

Cross Key

(up/down/left/right)

LED*

CD Print Tray Opens or closes the CD guide.

Power Indicates the power On/Off status.

Mode Lights during the corresponding mode is selected.

Note * :See Table 1-14 for more information on the LEDs.

Goes to the special mode that provides Print Photo Greeting Card, Reprint/Restore Photos, and Print on CD/DVD functions.

• Stops operation and displays the menu screen.

• Stops printing and ejects paper.

• Returns the print settings of the current mode to their default and displays the Top screen. (Returns to the previous screen during printing maintaining the current settings)

Goes to the Setup mode that provides maintenance menu (head cleaning, head alignment, etc.) and various option setting menu.

Goes to the zoom setting screen for the selected image. Changes the image preview layout (1-up, 9-up, etc.) on the LCD.

Selects a menu item of setting value.

Sets the number of copies.

Table 1-14. LED Functions

Printer Status Power LED Mode LED

Power-on sequence Flashing OFF

Power-off sequence Flashing The current mode LED flashes

Fatal error Flashing All the mode LEDs flash

Standby/The panel being operated ON The current mode LED lights*

Printing/Scanning

Printing from an external device (PC/camera)

Running a head cleaning

Running a nozzle check

Printing head alignment pattern

Canceling a print job

Clipping of video

Making a backup copy

Performing Scan to Memory

Running a slide show ON The memory card mode LED lights

Displaying the screen-saver ON The memory card mode LED lights

Power save mode ON The current mode LED lights*

Flashing The current mode LED flashes*

Note* : In the Setup mode, the mode LED corresponds to the previous mode lights.

Figure 1-5. Control Panel

PRODUCT DESCRIPTION Control Panel 20

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.7 Specifications of Each Function

1.7.1 Stand-alone Copy Function

With the press of the Copy button, the printer goes into the Copy mode and displays a menu for copying. The menu allows the user to specify the number of copies up to 99, select a copy layout from the preset options shown in desired scaling. Duplex copying is available with the optional duplex unit (standard equipment for EAI models). When the duplex unit is installed, menu options for duplex copying are enabled which includes “Dry Time”. The “Dry Time” allows the user to select a time period for drying paper printed on its front surface (refer to

Table 1-15. Copy Layout

Layout Description

With Border

Borderless

CD/DVD Copy

Wallet Copy (EAI model only)

Repeat Copy

Repeat Copy-4

2-up Copy

Book/2-up

Double Side 1-up*

Book/Double Side

Double Side 2-up*

Note* : The layouts are available only when the duplex unit is installed and the document type is

set to “Text” or “Graphics”.

Makes a copy with 3mm of left/right/top/bottom white margins.

Makes a copy with no white margins.

Makes a copy of a CD/DVD label directly on a CD/DVD.

Makes a specified number of “2.5x3.5 inch” size copies of one document on a sheet of selected sized paper.

Makes a specified number of copies of one document on a sheet of selected sized paper.

Makes four copies of one document on a sheet of selected sized paper.

Makes a copy of two A4 or letter sized documents on a sheet of A4 or letter sized paper.

Makes a copy of two pages of opened book on a sheet of selected sized paper.

Duplex copy using the duplex unit. Makes a copy of two pages on front and back sides of one sheet of paper.

Duplex copy using the duplex unit. Makes a copy of two pages of opened book on

front and back sides of one sheet of selected sized paper.

Duplex copy using the duplex unit. Makes a copy of four A4 or letter sized documents on front and back sides of one sheet of A4 or letter sized paper (two pages on each side).

Table 1-16. Dry Time Setting

Setting Document Type is Text Document Type is Graphics

Standard 0 sec. 10 sec.

Longer 30 sec. 30 sec.

Longest 60 sec. 60 sec.

Table 1-15, and specify the

Table 1-16).

1.7.2 Memory Card Direct Print Function

This mode allows the user to directly print images stored in a memory card or media in an external device connected using the USB Host port. When a memory card is inserted in the slot, the printer automatically searches for all images in a memory card, and shows them on the LCD. The user can select images to be printed previewing them on the LCD and print specified number of copies up to 99 per image (up to 999 in total). “Print Index Sheet” function provided in the Memory Card menu makes it easier to specify images and their print settings. “Scan to Memory” function that stores scanned data directly to a memory card is also provided. The following table shows media file formats supported by the printer.

Table 1-17. Supported File System, Types and Media Format

Item Specification

DCF Version 1.0 or 2.0 *1 compliant. Other than those does

File System

Memory card

Media format

File type

Note *1 : For more information on the DCF specifications, see “Camera File System Standard DCF

CD-R

DVD

JPEG (*.JPG)

Camera definition file (*.MRK)

P.I.F definition file (*.USD)

P.I.F definition file (*.FD2)

Version 2.0, JEIDA-CP-3461”. *2 : Available only when the memory card supports FAT32. *3 : UDF-formatted DVDs are not supported. *4 : The memory card direct print functions supports level 1 of the P.I.F.Rev.3.1.

not ensure proper operation. File systems available with the card reader are restricted by the host’s specification.

• DCF Version 1.0 or 2.0 compliant

• DOS FAT format (FAT12/FAT16/FAT32 *2) with single partition (basic partitioned)

ISO9660 Level1 (Joliet) format

ISO9660 Level1 (Joliet), or ISO9660 Level1 (Joliet) & UDF Bridge format

Image files conform to Exif Version 2.21. (Exif version 1.0/

2.0/2.1/2.2/2.21 are supported)

Camera definition files used for DPOF mode.

“\MISC\AUTOPRINT.MRK” file is valid.

Print layout definition files compliant with PRINT Image Framer Rev.2.1 specifications. Files in”/EPUDL/” directory are valid.

Print layout definition files compliant with PRINT Image Framer Rev.3.1 *4 specifications. Files in a memory card are valid.

PRODUCT DESCRIPTION Specifications of Each Function 21

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CHECK

POINT

CHECK

POINT

1.7.3 Backup Function

The Backup Memory Card function provided in the Setup mode allows the user to make a backup copy of a memory card on a media in an external device. Printing the backed up images directly from the external device also can be made. Writing back data backed up on the external media to a memory card cannot be made. The available media for the backup are as follows.

 MO: 128MB/230MB/640MB/1.3GB

 CD-R: 650MB/700MB

 DVD-R: 4.7GB

 USB flash memory

Note *1: A backup on 700MB or larger size CD-R is not ensured.

*2 : The CD-R/DVD-R is burned in format described in Table 1-17.

*3 : The printer cannot recognize USB flash memory that incorporates a hub.

*1,2

 Due to the file system restriction, a backup of a memory card

that has eight or more levels deep in folder hierarchy cannot be made on an ISO 9660 Level1-formatted CD-R.

 Due to the logical format of the CD/DVD, the pathname length

is restricted as described below;

•Destination media ISO9660: up to 255byte Joliet: up to 240byte

•Source media: Memory card (FAT12/16/32): up to 260byte

The maximum number of writing times

• FAT12/16-formatted media: up to 512 times (001 to 512) If any files other than backup folders exist in the route directly, the max. number of writings becomes less than 512 due to the MS-DOS restriction. When more than 512 times of writing history of an inserted MO is detected, the printer handles it as a backup error (file name, to folder hierarchy error).

• CD-R: 640MB: up to 47 times

700MB: up to 50 times

This is because each session information must be saved.

• DVD-R: 4.7GB: up to 274 times This is because each session information must be saved.

1.7.3.1 Backup Errors

If a backup operation is cancelled voluntarily or due to an error, a “Backup canceled” message appears with a hexadecimal 8-digit error code on the LCD. The following table lists the leftmost two-digit error codes that are controlled by the printer firmware.

Table 1-18. Backup Error FW Control Code List

Code

0x00 No error 0xC0 No files to be backed up

0x10 Album function error 0xE7 Parameter error

0x20 Backup function error 0xE8 File open error

0xA0 Other ATAPI/SCSI command error 0xE9 Internal buffer overflow

0xA1 ModeSense command error 0xEA CD/DVD format error

0xA2 ModeSelect command error 0xEB Not used

0xA3 Get Disc Information command error 0xEC Insufficient memory

0xA4

0xA5 Synchronize Cache command error 0xEE Not used

0xA6 CloseSession command error 0xEF Write-protect error

0xA7 Read command error 0xF0 Read/write error

0xA8 Write command error 0xF1 Invalid file open mode

0xA9 Set Speed command error 0xF2 Seek error

0xAA Eject command error 0xF3 Overflow of root directory

0xAB Drive lock command error 0xF4 Overflow of file descriptor

0xAC GetConfigration command error 0xF5 Invalid path name

0xAD Verify command error 0xF6 No file exist

0xAE Device error 0xF7 Medium was exchanged

0xB8 Short file name convert error 0xF8 Unformatted medium

0xB9 Unsupported device 0xF9 Device is not ready

0xBA No medium 0xFA Invalid device handle

0xBB Not writable medium 0xFB Invalid file descriptor

0xBC Unsupported medium 0xFC Not used

0xBD Hierarchical directory error 0xFD Backup initialization failed

0xBE Path length is too long 0xFE Acquiring memory pool failed

0xBF File name is too long 0xFF System error

Get Track Information command error

Meaning

Code

0xED

Meaning

Some data exist in the destination directory

PRODUCT DESCRIPTION Specifications of Each Function 22

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.7.4 Camera Direct Print Function

(USB Direct Print/PictBridge)

The printer supports direct print from a digital still camera that conforms to the specification shown in the following table. Basically the printer follows the print settings made by the digital camera, but changes some of the settings if the printer does not support the specified combination of paper type and layout.

Table 1-19. Available DSC

USB Direct Print PictBridge

DSCs conform to USB Direct Print Protocol Revision 1.0.

DSCs conform to CIPA DC-001-2003 Digital Photo Solutions for Imaging Devices (DPS version 1.0) or the Rev. 2.0.

1.7.5 Speciality Print Functions

The following table explains the functions of each menu provided in the Speciality Print mode.

Table 1-20. Speciality Print Functions

Item Function

Allows the user to copy their silver halide film-based pictures. The

Reprint/Restore Photos

Photo Greeting card (EAI model only)

Print on CD/DVD

Play Movie and Print Photos

printer scans the pictures automatically detecting them as silver halide film-based picture, and makes a copy of them.

This function is available with EAI models only. The user can create a greeting card combining an image in a memory card and a template selected from the preset options.

This function allows the user to print an image in a memory card directly on a CD/DVD. Printing a CD jacket on A4 or letter size paper is also provided.

Allows the user to clip an image or multiple images from a moving image took by a digital still camera and stored in a memory card, and print it/them. The following two options are provided.

• Print 1 Frame: prints clipped one image on one sheet of paper.

• Print N Frames: prints 12 images that are automatically clipped from the user-specified range. The images are printed on one sheet of paper using a preset layout.

1.7.6 Setup Mode

The Setup mode provides maintenance menus and various configuration setting menus. The following explains about the menu functions.

1.7.6.1 Maintenance Menu

Table 1-21. Maintenance Menu Items & Functions

Item Function

Nozzle Check

Head Cleaning

LCD Brightness

Head Alignment

Change Ink Cartridge

Thick Paper

Screen Saver Settings*

Note* : This menu is not provided on EAI models.

A nozzle check pattern to check the Printhead nozzles status is printed. A head cleaning can be run if necessary.

Runs a printhead cleaning. The cleaning cannot be made when low ink level is detected. In such case, an ink low error is displayed instead of running the cleaning.

This allows the user to adjust the brightness of the LCD.

The settable range is -10 (minimum) to +10 (maximum).

An adjustment to ensure the bi-directional print quality. Follow the instructions displayed on the LCD to carry out the adjustment. The default value for each of the four modes is “5”, and can be changed within the range of 1 to 9.

Runs an ink cartridge replacement sequence. The sequence also can be run from the Ink Levels menu or by following the instructions on the LCD when an ink-related error occurs.

Setting to “On” widens the platen gap to reduce friction between the printhead and thick paper. The setting is applied until the printer power is turned off, and returns to the default (Off) at the next power-on.

• Off: normal platen gap is applied.

• On: the wider platen gap is applied.

By setting to the “Memory Card Data”, the printer automatically runs a slide show using images in a memory card as a screen saver when no control panel operation has been made for 180 seconds in standby mode. If no memory card is inserted, or when this is set to “Off”, the LCD display does not change.

PRODUCT DESCRIPTION Specifications of Each Function 23

EPSON Stylus Photo RX680/RX685/RX690 Revision A

1.7.6.2 Setup Menus other than Maintenance

Table 1-22. Setting Menu Items & Functions

Item Function

The current ink levels of each of the cartridges are displayed in bar chart. After displaying the ink levels, the next operation can be selected from the

Ink Levels

CD Print Position (EAI)

CD/Sticker Print Position (Euro, Asia)

Backup Memory Card

PictBridge Setup

Bluetooth Settings

following two options; “End the ink levels display” or “Change Ink Cartridge”. The ink level is indicated in increment of 1%. Lower than 1% is rounded down. When the ink level becomes lower than 10%, “!” icon appears to notify the user of the ink low status

The printing range when printing on a CD/DVD or a sticker can be adjusted.

Allows the user to make a backup copy of a memory card on media in an external device. The “Folder Select” displays a folder selection screen to select the target folder in an external media to be printed.

The “Folder Select” menu item is disabled (grayout) when any external device is connected and/or no image files is detected in the inserted memory card. See on the backup function.

The print settings to be used for the camera direct print (USB Direct Print/ PictBridge) can be specified. When print settings (paper type, paper size, layout, quality, auto correct) are specified from the DSC, the DSC settings are applied and the settings made here are ignored. For more details, see

“ 1.7.4 Camera Direct Print Function (USB Direct Print/PictBridge)

( p. 23 ) ”.

This menu is enabled only when the optional Bluetooth unit is connected.

“ ” for more information.

See

“ 1.7.3 Backup Function ( p. 22 ) ” for more information

PRODUCT DESCRIPTION Specifications of Each Function 24

OPERATING PRINCIPLES

CHAPTER

EPSON Stylus Photo RX680/RX685/RX690 Revision A

(4) Front ASF Retard Home

Sensor

PF Encoder

ASF Assy

PW Sensor

CR Encoder

PF Motor

Cover Open

Sensor

PF Roller

Eject Roller

CR Assy

Printhead

Eject Frame

CD-R Guide

Sensor

Ink System

Assy

CR Guide

Shaft

APG Sensor

APG Assy

CR Motor

ASF Encoder

ASF Motor

ASF Sub

Motor

PE Sensor

(1) Rear ASF

Position Sensor

(2) Rear ASF Home Sensor

(3) Duplex Unit

Sensor

(1)

(2)

(3)

(4)

2.1 Overview

This section describes the operating principles of the Stylus Photo RX680/RX685/ RX690 mechanism and Electrical Circuit Boards.

2.1.2 Motors and Sensors

The following table shows the list of the motors and sensors. And the layout of the sensors and motors is shown on the following page.

Table 2-1. List of motors and sensors

2.1.1 Printer Mechanism

The main structure of printer mechanism and the motors/sensors in each mechanism are shown in the following figure. For Sensors names, See Table 2-1. "List of motors and sensors" (p26).

Figure 2-1. Printer mechanism overview

OPERATING PRINCIPLES Overview 26

Mechanism Names Motors/Sensors Ref.*

Printhead (p.28) ---

CR Motor (p.28) A

Carriage Mechanism (p.28)

APG Mechanism (p.30) APG Phase Sensor (p.30) 4

Paper Loading/Feeding Mechanism (p.33)

CD-R Mechanism (p.45) CDR mode sensor (p.45) 7

Paper Loading/Feeding Mechanism (p.33)

Duplex Print Unit (p.42) Duplex unit sensor (DP sensor) (p.36) 12

Ink System (p.49) ---

CR Encoder (p.28) 1

PW Sensor (p.29) 2

Cover Open Sensor (CO Sensor) (p.29) 3

PF motor (p.34) B

PF encoder (p.34) 5

PE sensor (p.34) 6

ASF motor (p.34) C

ASF Encoder (p.35) 8

ASF Sub motor (p.35) D

Front ASF retard home sensor (FP sensor) (p.35) 9

Rear ASF phase sensor (RP sensor) (p.35) 10

Rear ASF home sensor (RH sensor) (p.36) 11

Note *: The alphabet or the number listed in the “Ref.” column indicates the position of the

corresponding sensor or motor in Figure 2-2 or Figure 2-3 on the next page.

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Scanner Carriage Unit

CR encoder

CR Motor

OPERATING PRINCIPLES Overview 27

Figure 2-2. Motors/sensors layout (front side)

Figure 2-3. Motors/sensors layout (rear side)

Figure 2-4. Motors/sensors layout (scanner unit)

EPSON Stylus Photo RX680/RX685/RX690 Revision A

A#90

A#89

A#88

A#3

A#2

A#1

B#90

B#89

B#88

B#3

B#2

B#1

D#90

D#89

D#88

D#3

D#2

D#1

F#90

F#89

F#88

F#3

F#2

F#1

C#90

C#89

C#88

C#3

C#2

C#1

E#90

E#89

E#88

E#3

E#2

E#1

Paper Feed

Direction

Carriage Moving Direction

2.2 Printer Mechanism Operating Principles

2.2.1 Printhead

 Print method : On-demand ink jet (F-Mach Turbo 2 head)

 Nozzle layout

Colors Bk, C, M, Y, Lc, Lm (6 colors)

Number of nozzles

Nozzle pitch 0.282mm (1/90 inch), cross-layout

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

540 nozzles (90 Nozzles for each colors x 6 columns)

2.2.2 Carriage Mechanism

The Carriage mechanism consists of the CR motor, Timing belt, Driven pulley, CR guide shaft, Carriage unit, CR scale etc.

2.2.2.1 CR Motor

The CR motor is DC motor (with brushes) and it is controlled by positional/speed information obtained by means of the CR encoder.

Since the DC motor is used, the motor may generate a excessive heat in continuous operations. To avoid this, whether the motor is driven or not, a heating value is calculated at regular intervals to monitor the motor temperature while the power is ON. When the motor temperature exceeds a specified value, the operation is forcibly paused for a specified period of time.

Table 2-2. CR motor specifications

Item Specifications

Type DC motor with brushes (Mabuchi RS445PD-16175BR)

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

Armature resistance 19.7Ω ± 10%

Feature

Inductance 11.6 mH (1kHz)

Rotor inertia 16.2 gcm

Drive Method PWM, constant-current chopping

Driver A6651 (Allegro company product)

2.2.2.2 CR Encoder

Table 2-3. CR encoder specifications

Item Specifications

OPERATING PRINCIPLES Printer Mechanism Operating Principles 28

Figure 2-5. Nozzle layout

Power supply voltages 3.3VDC ± 5%

Output waveform Phase A, phase B channel digital output (TTL)

Output level

Resolution 180 pulses/inch

Signal detection section Transmissive photo interrupter

High output voltage: 2.4VDC (min.) Low output voltage: 0.6VDC (max.)

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CR shaft

Carriage unit

CR motor

Driven pulley unit

CR scale

CR encoder

Timing belt

Printhead

CR encoder

PW sensor

2.2.2.3 PW Sensor

 Detection items

 Detects the left, right, top and bottom edges of a cut sheet.

 Detects the CD-R center

 Specifications

Item Specifications

Type Reflective photo interrupter (TOSHIBA S7K95)

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

Paper Present 0V (reference value)

Paper Absent 3.3V (reference value)

2.2.2.4 Cover Open Sensor (CO Sensor)

When the Cover Open sensor detects that the scanner unit is open, the operation of the carriage is stopped to prevent users from getting injured. And then cover open error is displayed.

Figure 2-6. Carriage Mechanism

 Detection item

 Detects the cover (scanner unit) open/close

 Specifications

Item Specifications

Type Mechanical contact points (Mik Denshi MPU10980MMB0)

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result outputs

Detected state Output

Cover open 2.4V or more

Cover close 0.4V or less

Figure 2-7. Bottom of Carriage Unit

OPERATING PRINCIPLES Printer Mechanism Operating Principles 29

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Change lever

Carriage Assy

Change lever

Forced clutch

ASF motor

Right PG cam

Left PG cam

CR shaft

Carriage Assy

APG phase sensor

2.2.3 APG Mechanism

APG mechanism is provided to change the platen gap (PG) automatically within five settings using the driving force of the ASF motor.

To drive the APG mechanism for changing the platen gap, the carriage is moved to its home position to release the change lever, and then the forced clutch is switched to the Ink system/APG drive side.

2.2.3.1 APG Phase Sensor

 Detection item

 Detects the PG position

 Specifications

Item Specifications

Type Transmissive photo interrupter (TOSHIBATLP1243(C8))

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

In PG position 2.4V or more

Out of PG position 0.4V or less

Figure 2-8. Switching of Forced Clutch (APG)

Also the APG mechanism is interlocked with CDR guide mechanism. When the platen gap is set to the CDR guide position, the driving force is transmitted to the CDR guide.

See “2.2.5.2 CDR Guide Auto Switching Operation” (p.45).

The next section describes the components of APG mechanism.

Figure 2-9. APG mechanism

OPERATING PRINCIPLES Printer Mechanism Operating Principles 30

EPSON Stylus Photo RX680/RX685/RX690 Revision A

ASF motor

1. Spur gear 18.5 (Forced clutch)

2. Combination gear 24.5, 9.6

4. Spur gear 27.2 (I/S)

6. Transmissive combination gear 20.8, 11.2

3. Spur gear 11.2 (I/S)

5. APG Planetary gear (Spur gear 9.6)

To A

ASF motor (Rear)

5. APG Planetary gear (Spur gear 9.6) APG Assy

6. Transmissive

combination gear

(Transmits the driving

force to APG)

Ink system (I/S)

10. Combination gear 17.6, 11.2B

8. Combination gear 16, 12.8

9. Spur gear 22.4

Right PG cam

11. Flag combination gear 40.8,36

APG phase sensor

7. Combination gear 17.6, 11.2A

CR shaft

Right PG cam

11. Flag combination gear 40.8,36

6. Transmissive

combination gear

(Transmits the

driving force to APG)

APG Assy

APG phase sensor

2.2.3.2 APG Driving Path

The driving path of ASF motor to drive APG is shown below.

Flowchart 2-2. ASF motor driving path (APG) (2)

Flowchart 2-1. ASF motor driving path (APG) (1)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 31

Figure 2-10. ASF motor driving path (APG) (1)

Figure 2-11. ASF motor driving path (APG) (2)

EPSON Stylus Photo RX680/RX685/RX690 Revision A

PG(-) PG(Typ.) PG(+)

CDR

PG(++)

High

Low

High

Low

High

Low

High

Low

Counterclockwise

2.2.3.3 Basic Operations

The basic operations of APG mechanism are described below.

 Basic operations

Table 2-4. Basic operations

Switching to the APG

PG position change action

ASF motor control

APG initialization When the PG position is unknown at power-on or after recovering from an error, the printer conducts APG initialization to set the PG position to Pos.1.

To drive the APG mechanism for changing PG position, the carriage is moved to its home position to release the change lever, and then the forced clutch is switched to the Ink system/APG drive side.

The counterclockwise rotation of the ASF motor switches the APG Planetary gear to the APG drive, and rotate the right PG cam on the carriage shaft to change the PG position. Each PG position is set on the surface of the right PG cam, so the PG position is changed from pos.1 to pos.5 in that order by the counterclockwise rotation of the ASF motor. When the position is set to Pos.5, the further rotation makes the position return to pos.1.

The ASF motor is controlled by the APG phase sensor and ASF encoder at all times while the APG mechanism is driven. About the output and meaning of APG phase sensor, See “2.2.3.1 APG Phase Sensor” (p30).

Table 2-5. PG Position transition diagram

APG phase sensor

Type

PG dimensions (mm) 1.2 1.7 2.35 4.2 4.2

Position name Home position Normal position PG large position CDR guide drive position CD/DVD print position

Printing Printing on Epson paper

Specification

Not printing

Rotational direction of ASF motor

OPERATING PRINCIPLES Printer Mechanism Operating Principles 32

Pos.1

PG(-) PG(Typ.) PG(+) CDR PG(++)

The home position at

power-on (when

initialized)

Capping/wiping

→

Pos.2

Printing on Plain paper Avoid friction at PG(-)

→

Pos.3

Printing on envelope

Avoid friction at

PG(Typ.)

→

(CDR planetary gear is

Pos.4

→

- Printing on CD/DVD

CDR guide drive

Ink cartridge replacement

released)

Pos.5

(To Pos.1)

→

EPSON Stylus Photo RX680/RX685/RX690 Revision A

EJ roller+Star wheel (EJ frame)

PF roller+ driven roller (Upper Paper Guide)

PF motor

PF roller pulley (PF roller)

PF Timing belt

EJ roller pulley (EJ roller)

EJ roller

EJ frame

PF roller Driven roller (Upper Paper Guide) Front Paper Guide

PF Timing belt

PF scale

PF motor

2.2.4 Paper Loading/Feeding Mechanism

The paper loading mechanism consists of Front ASF, Rear ASF and CDR guide. This mechanism transports the paper from each ASF or CDR guide to the paper feeding mechanism such as PF roller. When the optional Duplex Print unit is installed, automatic duplex printing is available. After printing on the front side, the paper is automatically reversed in the Duplex Print Unit to print on the back side. The outline of the paper loading/feeding mechanism is described below.

When a print job is started from the printer driver or the control panel, the printer checks the selected paper path and print data for any error. Then the printer sets the PG position using the APG and moves the carriage toward 80 digit side from its home position. The motors of the ASF mechanism then start to move to load the paper or CD. The fed paper is transported to the PF roller and its skew is corrected, and the paper is transported to the print position. Then the paper feeding mechanism starts, and the paper is transported up to the paper ejecting process. This printer is equipped with three types of paper feeding mechanism; Front ASF, Rear ASF and CDR guide.

PAPER FEEDING PATH (FEEDING MECHANISM)

Flowchart 2-3. PF motor driving path

Figure 2-12. Paper feeding mechanism

In following pages, the specifications of the motors/sensors used in the Front ASF, Rear ASF, Duplex unit, paper feeding mechanism, and their operating principles are described.

OPERATING PRINCIPLES Printer Mechanism Operating Principles 33

EPSON Stylus Photo RX680/RX685/RX690 Revision A

2.2.4.1 Specifications of Motors/Sensors

The specifications of the motors/sensors used in the paper feeding mechanisms are described below.

PF MOTOR

The PF motor provides the driving force for paper feeding, CR lock/wiper, CDR Guide drive, Idle roller drive for the front ASF, Duplex print unit drive, etc. The PF motor is controlled by the PF encoder.

Table 2-6. PF motor specifications

Item Specifications

Type DC motor with brushes (MABUCHI, RS445PD-18140BR)

Voltage 42V (direct voltage) ± 5% (applied voltage for the driver)

Armature resistance 12.2W ± 10%

Feature

Inductance 7.45mH (1kHz)

Rotor inertia 16.2 gcm2

Driving method PWM, constant-current chopping

Driver A6651 (Allegro company product)

PF encoder

Table 2-7. PF encoder specifications

Item Specifications

Power supply voltages 3.3VDC ± 5%

Output waveform Phase A, phase B 2 channel digital output (TTL)

Output level

Resolution 360 pulse/inch

Signal detection section Transmissive photo interrupter

High output voltage: 2.4V DC (min.) Low output voltage: 0.4V DC (max.)

PE SENSOR

 Detection items

 Detects the leading edge of the paper to control the feeding condition  Detects the rear edge of the paper

 Specifications

Item Specifications

Type Transmissive photo interrupter (NIPPON ALEPH, OJ-611-A8)

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

Paper present 2.4V or more

Paper absent 0.4V or less

ASF MOTOR

The ASF motor provides the driving force for the LD roller of the Rear ASF, APG, Ink system, pick-up roller of the front ASF, etc. The ASF motor is controlled by the ASF encoder.

Table 2-8. ASF motor specifications

Item Specifications

Type DC motor with brushes (MABUCHI, RS385PH-13200R)

Voltage 42V (direct voltage) ± 5% (applied voltage for the driver)

Armature resistance 21.9Ω ± 10%

Feature

Inductance 9.21 mH (1kHz)

Rotor inertia 7.45 gcm

Driving method PWM, constant-current chopping

Driver A6651 (Allegro company product)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 34

EPSON Stylus Photo RX680/RX685/RX690 Revision A

ASF Encoder

Table 2-9. ASF encoder specifications

Item Specifications

Power supply voltages 3.3VDC ± 5%

Output waveform Phase A, Phase B 2 channel digital output (TTL)

Output level

Resolution 180 pulse/inch

Signal detection section Transmissive photo interrupter

High output voltage: 2.4V DC (min.) Low output voltage: 0.4V DC (max.)

ASF Sub motor

The ASF Sub motor provides the driving force for the hopper of the Rear ASF, Paper Back lever control and Retard roller of the front ASF.

Table 2-10. ASF Sub motor specifications

Item Specifications

Type DC motor with brushes (MABUCHI, FC280SA-08600HR)

Voltage 42V (direct voltage) ± 5% (applied voltage for the driver)

Armature resistance 47.1Ω ± 15%

Feature

Inductance 26.0 mH (1kHz)

Rotor inertia 4.03 gcm

Driving method PWM, constant-current chopping

Driver A6651 (Allegro company product)

Front ASF retard home sensor (FP sensor)

 Detection item

 Detects the condition of Front Retard roller

 Specifications

Item Specifications

Type Transmissive photo interrupter (TOSHIBA TLP1243(C8))

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

Front Retard UP 2.4V or more

Front Retard Home 0.4V or less

REAR ASF PHASE SENSOR (RP SENSOR)

 Detection item

 Detects the hopper position of Rear ASF

 Specifications

Item Specifications

Type Transmissive photo interrupter (TOSHIBA TLP1243(C8))

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

In Rear ASF position 2.4V or more

Between the positions 0.4V or less

OPERATING PRINCIPLES Printer Mechanism Operating Principles 35

EPSON Stylus Photo RX680/RX685/RX690 Revision A

PF motor

EJ roller pulley

PF roller pulley

Front Paper Guide

EJ frame

Cassette Assy

Timing belt

REAR ASF HOME SENSOR (RH SENSOR)

 Detection item

 Detects the position of Rear ASF hopper (Home/out)

 Specifications

Item Specifications

Type Transmissive photo interrupter (TOSHIBA TLP1243(C8))

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

Out of home position 2.4V or more

In home position 0.4V or less

DUPLEX UNIT SENSOR (DP SENSOR)

 Detection item

 Detects the Duplex unit presence

 Specifications

2.2.4.2 Front Paper Feeding Mechanism (Front ASF)

PAPER FEEDING PATH

The following figure shows the paper feeding path in the front paper feeding.

Item Specifications

Type Mechanical contact points (Mik Denshi MPU10980MMB0)

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

Figure 2-13. Front ASF paper feeding path

 Result output

Detected state Output

Duplex unit absent 2.4V or more

Duplex unit present 0.4V or less

OPERATING PRINCIPLES Printer Mechanism Operating Principles 36

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Right side of printer

ASF sub motor (CCW)

1. RASF Planetary gear (Spur gear12)

3. Spur gear 23A

4. Spur gear 23B

5. Spur gear 23C

6. Combination gear 32.11

7. Spur gear 11

8. Spur gear cam 27

Retard reset shaft (switch)

Front retard roller (UP)

Front retard roller

ASF sub motor (CCW)

2. RASF Planetary gear (Spur gear12)

Retard reset shaft

Retard ASF Assy

1.2 RASF Planetary gear

<ASF sub motor status> CCW: to drive Front retard

CW: to drive hopper

3. Combination gear 28.7,18

4. Spur gear 24.1 RMD

5. Spur gear 24 FASF

PF motor (CW)

PF roller pulley (PF roller)

PF Timing belt

1. Spur gear 12PF (PF roller)

2. FASF Planetary gear

(Combination gear12, 2, 12)

6. Spur gear 34.5

Idle roller

2. FASF Planetary gear

CW: contacts with 1 to drive Idle roller

CCW: stops the separation

Left side of printer

Idle roller

PF motor (CW)

1. Spur gear 12PF (on the PF roller)

Front Retard roller

MOTOR DRIVE TRANSMISSION

The driving force of the ASF sub motor is transmitted as shown below in the front feeding operation.

Flowchart 2-5. PF motor drive force transmission

OPERATING PRINCIPLES Printer Mechanism Operating Principles 37

Flowchart 2-4. ASF sub motor drive force transmission

Figure 2-14. PF motor drive force transmission

EPSON Stylus Photo RX680/RX685/RX690 Revision A

ASF motor (CCW)

1. Spur gear18.5

2. Combination gear 25.5, 20.8, 11.2

4. Spur gear30.4

5. Spur gear 11.2

Timing belt PU2

6. Spur gear 9.6 pulley

8. Spur gear 10

7. Spur gear 14.4

9. Clutch PU

Timing belt PU1

10. Pick-up pulley

Pick-up roller

Rear ASF Right

ASF motor (Rear)

Timing belt PU2

3. ASF Planetary gear

CCW: to drive Pick-up roller

CW: to drive LD roller

3. ASF Planetary gear (spur gear 18.4)

Timing belt PU1

Pick-up roller

OPERATION SEQUENCE OVERVIEW (FRONT ASF)

The operation of the front paper feeding mechanism is described below.

1. The condition before starting paper feeding is like below due to the power-on sequence or the previous paper feed sequence. Front position sensor L (Front Retard Home) Rear Home sensor L (Rear Home) Rear position sensor H (Rear Pos.) In this condition, Rear ASF is in its home position and the Front Retard roller is in the Home position (down). At this time, RASF Planetary gear is free from the cam of the Spur gear 34.4, so the ASF Sub motor can cause either the Rear ASF hopper to drive or the Front Retard roller to move up/down. See Flowchart 2-4 (p.37)/ Figure 2-3 (p.27)/ Flowchart 2-7 (p.40).

2. When starting paper feed from the Front ASF, the PF motor rotates clockwise a specified number of steps to move the FASF Planetary gear toward the Idle roller side. See Figure 2-14“PF motor drive force transmission” (p.37)

3. The counterclockwise rotation of the ASF Sub motor moves the RASF Planetary gear toward the Front Retard side. The ASF Sub motor keeps counterclockwise rotation to lift up the Front Retard. At this time the Front Position sensor is monitored. When the Front position sensor becomes High state, the rise of the Front Retard is completed and the ASF Sub motor stops. In this manner the Front Retard comes into contact with the Idle roller. This allows the paper to be fed by the rotation of the Idle roller. See Flowchart 2-4 (p.37)/ Figure 2-15 (p.39).

OPERATING PRINCIPLES Printer Mechanism Operating Principles 38

Flowchart 2-6. ASF motor drive force transmission

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Front retard Home

Front retard Up

ASF sub motor

RASF Planetary gear

FP sensor

Spur gear cam

Idle roller

Front retard roller

Front Retard roller

EJ roller

PF roller

Front retard

roller

Upper paper guide FASF

Pick-up roller

PE sensor

Idle roller

Right side

6. The rotation of the Pick-up roller feeds the paper to the Idle roller/Front Retard roller in the cassette. When the ASF motor rotates a specified number of steps, the paper reaches the Idle roller/Front Retard roller. Then those rollers which are started to rotate in step 4 transport the paper until it is detected by the PE sensor. At this time the ASF motor is decelerated to stop the rotation of the Pick-up roller.

4. The clockwise rotation of the PF motor causes the Idle roller/Front Retard roller to rotate. Then the printer starts to monitor the paper with the PE sensor.

5. The rotation of a specified number of steps of the PF motor causes the ASF motor to rotate counterclockwise to move the ASF Planetary gear toward the pick-up roller side. The ASF motor keeps counterclockwise rotation monitoring load to drive the pick-up roller, and the front feeding is started. (If a high load is detected while the ASF motor rotates a specified number of steps, the printer judges that no paper is loaded and indicates the Paper Out error.)

See Flowchart 2-6 (p.38)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 39

Figure 2-15. Condition before starting front feeding

Figure 2-16. Front ASF paper feeding path

7. When the PE sensor detects the paper presence, the paper is moved forward a preset number of steps to the print position. With this step the Front paper feeding operation is completed. Then the PF roller which is rotated by the PF motor starts the further paper feeding operation.

8. After the Front paper feeding operation is completed, the ASF motor rotates counterclockwise to bring the Front Retard roller down so that it returns to the home position. When the Front Position sensor goes to Low state, the ASF Sub motor is stopped.

EPSON Stylus Photo RX680/RX685/RX690 Revision A

PF motor

EJ roller pulley

PF roller pulley

EJ frame

Upper Paper Guide

Timing belt

Rear ASF Assy

Right side of printer

ASF Sub motor

LD roller

1,2 RASF Planetary gear

CCW: to drive Front retard

CW: to drive hopper

ASF sub motor

3. Hopper combination gear 39.5, 10.4

Paper back cam

4. Spur gear 34.4

1. RASF Planetary gear (Spur gear 12)

2. RASF Planetary gear (Spur gear 12)

6. Spur gear 24FASF (inside)

7. Flag gear (outside)

5. Hopper release cam

Hopper

Paper back cam

2.2.4.3 Rear Paper Feeding Mechanism (Rear ASF)

PAPER FEEDING PATH

The following figure shows the paper feeding path in the Rear paper feeding operation.

MOTOR DRIVE TRANSMISSION

The driving force of the ASF sub motor is transmitted as shown below in the rear feeding operation. See Figure 2-12“Paper feeding mechanism” (p.33)

information on the

PF motor driving path

for

OPERATING PRINCIPLES Printer Mechanism Operating Principles 40

Figure 2-17. Rear ASF paper feeding path

Flowchart 2-7. ASF sub motor drive force transmission

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Right side of printer

ASF motor (CW)

LD roller

4. Flag gear RASF

5. Spur gear 24LD (outside)

1. Spur gear 18.5

3. ASF Planetary gear (Spur gear 18.4)

ASF motor (CW)

2. Combination gear 25.5, 20.8, 11.2

3. ASF Planetary gear

<ASF motor status> CW: to drive the LD roller

CCW: to drive pick-up roller

EJ roller

LD roller

Retard roller

(RASF)

PF motor

Right side

PE sensor

PF roller

4. The clockwise rotation of the ASF motor moves the ASF Planetary gear toward the LD roller to start the rear feeding. From this time the printer starts to monitor the feeding operation using the PE sensor. At the same time the PF motor starts to rotate clockwise to rotate the PF roller. See Flowchart 2-8 (p.41)

5. When the PE sensor detects the paper presence, the ASF/PF motor is driven to correct the paper skew. Then the paper is moved forward in a preset number of steps to the print position. With this step the rear paper feeding operation is completed. In the next step, the PF roller driven by the PF motor starts the paper feeding process.

6. While the printer monitors the Rear Position sensor, the ASF sub motor rotates clockwise to cause the hopper release cam to move the hopper toward the print position and the Paper Back cam lifts the Paper Back lever up to avoid double feed.

OPERATION SEQUENCE OVERVIEW (REAR ASF)

Flowchart 2-8. ASF motor drive force transmission

The operation of the rear paper feeding mechanism is described below.

1. Before starting the Rear ASF paper feeding, the Rear ASF is in its home position as it does before the front feeding. (Step 1.“ Operation Sequence Overview (front

ASF) (p.38)”)

2. The clockwise rotation of the ASF Sub motor moves the RASF Planetary gear toward the Hopper, and the printer starts to monitor the Rear Position sensor. The Rear Position sensor goes to low state after the ASF Sub motor starts to rotate. The motor stops when the sensor becomes high state. See Flowchart 2-7 (p.40)

3. The driving force of the ASF Sub motor causes the Paper Back cam to press down the Paper Back lever, and the Hopper Release cam lifts the hopper so that the hopper contacts the LD roller. See Flowchart 2-7 (p.40)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 41

Figure 2-18. Rear ASF paper feeding path

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Paper guide front

PF motor

PF roller pulley

Timing belt

EJ frame

D21 roller

D57 roller

Duplex unit

D57 roller

13. Spur gear32

14. Combination gear 65.6, 44.8

15. Spur gear 17.6

D21 roller

9. Duplex Planetary gear

CCW: under spur gear 19.2

CW: above spur gear 19.2

11. Combination gear16, 16

12. Spur gear32

2. Spur gear 40

3. Spur gear 19 (on Rear ASF)

4. Spur gear 20 (on Rear ASF)

5. Combination gear 28, 20 (on Rear ASF)

6. Combination gear28, 14.4

7. Combination gear 32, 17.6

PF motor (CCW/CW)

PF roller pulley

1. Spur gear 12PF (on PF roller)

PF Timing belt

10. Spur gear 19.2

CCW: under spur gear 19.2

CW: above spur gear 19.2

8. Combination gear16, 16

2.2.4.4 Duplex Print Unit

When the optional Duplex unit is installed, the automatic Duplex print becomes possible. The paper printed on its front side is automatically reversed and then printed on its back side.

When the printer receives a duplex print job from the driver, the printed paper is dried and transported to the Duplex unit, then reversed in it and reloaded to the printer.

PAPER FEEDING PATH

MOTOR DRIVE TRANSMISSION

Figure 2-19. Duplex unit paper feeding path

OPERATING PRINCIPLES Printer Mechanism Operating Principles 42

Flowchart 2-9. PF motor drive force transmission

EPSON Stylus Photo RX680/RX685/RX690 Revision A

PF roller pulley

9. Duplex Planetary gear

Transmits both of CCW/CW rotation in a fixed direction.

D57 roller

D21 roller

10. Spur gear 19.2

<PF motor status> CW: outer side transmits the drive to (11)

CCW: inner side transmits the drive to (11)

PF motor

PF Timing belt

EJ roller

Left side

PE sensor

PF roller

1st dry process 2nd dry process

OPERATION SEQUENCE OVERVIEW (DUPLEX UNIT)

The driving force from the PF motor causes the Planetary gear in the Duplex unit to move so that the paper is fed inside the Duplex unit. Both the rotational directions of the motor cause the operation, however, to reduce wear of rollers and motor load, the driving force from the clockwise rotation of the PF motor is not transmitted to the Duplex unit (this is referred to as “Duplex Auto Shutoff” in this manual) in cases listed below. (The counterclockwise rotation of the PF motor always moves the Duplex unit.)

 When the power is turned ON, or when recovers from the low power mode

 When the paper exists in the Duplex mode

 When the CDR print is completed.

The following part describes the operational sequence of the Duplex unit.

1. Paper rear edge detection for setting the reverse standard position After the printing on the front side is completed, the PE motor transports the paper until its Rear edge is detected by the PE sensor. Because the Duplex unit is in the “Duplex Auto Shutoff” state, the PF motor clockwise drive is not transmitted.

2. Drying the front printed side The PF motor pauses for a fixed time period specified by the printer driver for drying the paper (1st dry process) and the printer indicates on the LCD that it is in the drying process. Then, the PF motor rotates clockwise to transport the paper until its rear edge reaches the EJ roller, and pauses again for drying the paper for a fixed time period specified by the driver for 2nd dry process.

Figure 2-21. Drying operation

Figure 2-20. Components of Duplex unit

OPERATING PRINCIPLES Printer Mechanism Operating Principles 43

EPSON Stylus Photo RX680/RX685/RX690 Revision A

EJ roller pulley

Left side

D57 roller

PE sensor

PF roller

Left side

PF motor

EJ roller

D57 roller

PE sensor

PF roller

Lower Guide (Duplex)

D57 roller

D21 roller

EJ roller

PF roller

Left side

PE sensor

3. Detection of the rear edge of the paper after drying After the drying sequence, the drying indication on the LCD disappears and then the PF motor rotates counterclockwise until the PF sensor detects the paper presence.

4. Transporting into the Duplex unit After the PF sensor detects the paper, the PF motor rotates a specified number of steps to transport the paper to the reverse start position and then stops. At this time the printer quits the Duplex Auto Shutoff state so that the clockwise rotation of the PF motor is transmitted to the Duplex unit.

Figure 2-22. Duplex unit paper feeding path (1)

5. Reversing the paper After the printer quits the Duplex Auto Shutoff state, the clockwise rotation of the PF motor makes the paper reverse and transports it to the PE sensor.

Figure 2-23. Duplex unit paper feeding path (2)

6. Paper setting for printing on the back side After the leading edge of the paper is detected by the PE sensor, the paper is moved forward a preset number of steps which is specified by paper type. Then printing on the back side is started.

Figure 2-24. Duplex unit paper feeding path (3)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 44

EPSON Stylus Photo RX680/RX685/RX690 Revision A

PF motor

EJ roller pulley

EJ frame

Front Paper Guide

Timing belt

CDR guide

PF roller pulley

2.2.5 CD-R Mechanism

This printer supports direct print on a CDR with the CDR tray. Manually switching between ASF feed and CD feed using the lever is not required as the previous models. Stylus Photo RX680/RX685/RX690 equip with the automatic switching operation driven by the PF motor.

This section describes the details of the Auto CDR guide switching operation, CDR tray transporting path and their components.

2.2.5.1 CDR Tray Transporting Path and Components

CDR tray transporting path and the components are shown below.

CDR MODE SENSOR

 Detection item

 Detects the condition of the CDR guide

 Specifications

Item Specifications

Type Mechanical contact points (Mik Denshi MPU10980MNB0)

Power supply voltages 3.3VDC ± 5%

Output waveform 1 channel analogue output

 Result output

Detected state Output

Position Hi/Low 2.4V or more

Position not fixed (moving) 0.4V or less

2.2.5.2 CDR Guide Auto Switching Operation

Pressing the “CD guide open/close” button moves the CDR guide from the ASF paper feed position to the CDR print position, or to the opposite direction. However, the CDR guide does not move in cases listed below.

 During other operations

OPERATING PRINCIPLES Printer Mechanism Operating Principles 45

Figure 2-25. CDR feeding path

 When the printer has received a print job other than CDR print job

EPSON Stylus Photo RX680/RX685/RX690 Revision A

PF motor (CCW:UP/CW:DOWN)

PF Timing belt

EJ roller pulley

1. Spur gear 16 (above EJ roller)

2. CDR Planetary gear

moving Up: above planetary Spur gear12

moving Down: under planetary spur gear 12

3. Spur gear 12A

4. Spur gear 12B

5. Combination gear 36, 24

6. Spur gear 24L

7. Combination gear 36, 24L

8. Combination gear 35.2, 8.8L

CDR guide L side

10. Combination gear 36, 24R

11. Combination gear 35.2, 8.8R

CDR guide R side

CDR shaft

9. Spur gear 24R

PF motor

PF Timing belt

EJ roller pulley

2. CDR Planetary gear

CCW: move CDR guide upward

CW: move the guide downward

CDR shaft

CDR guide

MOTOR DRIVE TRANSMISSION

The driving force of the PF motor is transmitted as shown below in the CDR guide position switching operation.

Flowchart 2-10. PF motor drive force transmission (CDR mechanism)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 46

Figure 2-26. PF motor drive force transmission (CDR mechanism)

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Left side

CDR Link arm

CDR Planetary gear

CDR Link arm Left PG camCDR Planetary gear

Left side

Left PG cam

CDR guide positionCDR Planetary gear locked

EJ frame

CDR guide

Sensor

retaining rib

CDR mode sensor

Left side

OPERATION SEQUENCE OVERVIEW (CDR MECHANISM)

When the PG position is switched to the CDR guide drive position by the APG mechanism, the CDR Link arm which is interlocked with the Left PG cam releases the lock of the CDR Planetary gear. In this manner the driving force of the PF motor is transmitted to the CDR guide.

The state of the CDR guide is controlled by the flag and the CDR mode sensor. If the misalignment with the CDR guide is detected, the CDR retrying sequence is performed to correct the misalignment by moving the CDR guide up/down according to the state of the flag.

The operational sequences of the CDR guide Up/Down are described below.

 Lifting the CDR guide (CDR printing position)

1. The PG position is switched to the CDR guide drive position by the APG mechanism to release the lock of the CDR Planetary gear. See Figure

2-27.“Switching of CDR Link arm and Planetary gear (When lifted)”(p.47).

2. The PF motor rotates counterclockwise to lift the CDR guide up. During this operation, the PF motor load is monitored. At this time the CDR mode sensor goes to High state.

Figure 2-27. Switching of CDR Link arm and Planetary gear (When lifted)

3. When the CDR mode sensor goes to Low state, the PF motor rotates decelerating a specified number of steps to move the CDR guide to the CDR printing position. With this step the lifting of the CDR guide is completed.

Figure 2-28. CDR guide/mode sensor at starting to lift up

OPERATING PRINCIPLES Printer Mechanism Operating Principles 47

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CDR guide

EJ frame

Left side

Action at CDR guide lifting

CDR mode sensor

Sensor retaining rib

EJ roller

PF roller

CDR guide

Carriage

PE sensor

Figure 2-30. Tray transporting path at CDR printing

 Moving down the CDR guide (ASF position)

1. The PG position is switched to the CDR guide drive position by APG mechanism

Figure 2-29. CDR guide/mode sensor at completion of lift up

4. After the lifting the CDR guide is completed, the PF motor rotates clockwise a specified number of steps to release the pressure of the CDR Planetary gear. Then the PG position is switched to the PG(-) by the APG mechanism. In this manner the CDR Planetary gear is locked so that the driving force of the PF motor is not transmitted.

to release the lock of CDR Planetary gear.

2. The clockwise rotation of the PF motor moves the CDR guide downward. During this operation, the PF motor load is monitored. At this time the CDR mode sensor goes to High state.

3. When the CDR mode sensor goes to Low state, the PF motor rotates decelerating clockwise a specified number of steps to move the CDR guide to the ASF position. With this step the moving down the CDR guide is completed.

4. After the moving down the CDR guide is completed, the PF motor rotates counterclockwise a specified number of steps to release the pressure of the CDR Planetary gear. Then the PG position is switched to the PG(-) by the APG mechanism. In this manner the CDR Planetary gear is locked so that the driving force of the PF motor is not transmitted.

OPERATING PRINCIPLES Printer Mechanism Operating Principles 48

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Wiper

Cap

Carriage lock

Cap unit

Pump unit

2.2.6 Ink System

The Ink system consists of the mechanisms shown below.

Figure 2-31. External view of the Ink system

2.2.6.1 Pump Unit

The Pump unit is provided to absorb ink from the Printhead or Cap unit. Both of the Pump unit and the paper feeding mechanism are driven by the ASF motor. When driving the Pump unit, the carriage is moved to its home position and the change lever is switched to the ink system side so that the driving force of the ASF motor is transmitted to the Pump unit.

(APG)”(p.30).

See Figure 2-8.“Switching of Forced Clutch

2.2.6.2 Cap Unit

The Cap unit is provided to keep the airtightness inside the cap by capping the surface of the printhead when the ink is absorbed by the Pump unit. When the carriage unit moves to the absorbing position on the edge of HP side, the carriage causes the cap to slide so that the cap goes up and adhere to the head.

Also the Cap unit contains the Carriage Lock unit and the Wiper unit. When the carriage is in the carriage lock position/wiping position, the carriage lock set/reset and wiper set/ reset operations are conducted by the driving force of the PF motor.

The relationship between the PF motor drive and the Cap unit is shown below.

Table 2-12. PF motor drive and the Cap unit

PF motor* drive direction* Carriage lock/Wiper operation

Clockwise

Counterclockwise

Note "*": The rotational direction clockwise/counterclockwise is defined seen from the output

shaft side.

Carriage lock set Wiper Up

Carriage lock reset Wiper Down

The relationship between the ASF motor and the Pump unit is shown below.

See Table 2-8. “ASF motor specifications” (p.34) for the specifications of the ASF

motor.

Table 2-11. ASF motor drive and the Pump unit

ASF motor* drive direction Pump unit operation

Note "*": The rotational direction clockwise/counterclockwise is defined seen from the output

Clockwise Absorb

Counterclockwise Release

shaft side.

OPERATING PRINCIPLES Printer Mechanism Operating Principles 49

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Rod Lens Array

CIS Board

Scanner Carriage Unit

CIS

LED

2.2.7 Scanner Unit

The Scanner unit consists of the Scanner Carriage unit, CR motor, CR encoder sensor, etc. See Figure 2-4.“Motors/sensors layout (scanner unit)”(p.27) Following describes the mechanism of the components.

 Scanner Carriage Unit

The Scanner Carriage unit consists of the CIS board, the Rod Lens Array, and the LED (light source). The following explains about each of the components.

 CIS Board

The CIS Board contains the sensing elements that are placed across the entire width of an original. The sensing elements, which does not install a color filter, read an original through the Rod Lens Array by turning on red, green, and blue light emitting diodes (LEDs) alternately. It is not the CIS Board but the Main Board that converts the analog light signal read by the Rod Lens Array into digital signal.

 Rod Lens Array

A number of rod-shaped lenses, which are arranged on the sensing elements, are also placed across the entire width of an original. The light source (LEDs) emits light, and these lenses read the light reflected off the original, and pass the information to the sensing elements. Compared to conventional CCD method, this optical system allows the focal length (distance between sensor and image scanned) to be shallow. Therefore, an original to be scanned should be brought close to the document glass. The optical system, in addition, is 1:1, (there is no optical reduction or enlargement) and this results in a scanner offering the solid performance in terms of accuracy.

 LED

Stylus Photo RX680/RX685/RX690 use three color LEDs (red, green, and blue) to illuminate the line to be scanned in the document. Unlike cold cathode fluorescent lamp used in CCD method, usage of LEDs requires no warm-up time and allows the CIS to be highly power efficient.

Figure 2-32. Components of the Scanner Carriage Unit

 CR Motor & CR Encoder

The CR motor is a DC motor with brush. It drives the Carriage unit through the timing belt according to the carriage position and speed information obtained by the CR encoder. The following shows the specifications of the motor and the encoder.

Table 2-13. CR motor specifications

Item Specifications

Type

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

Drive Method PWM

Driver A6651 (Allegro company product)

DC motor with brushes (Mabuchi RK-370CA-09900)

Table 2-14. CR Encoder specifications

Item Specifications

Power supply voltages 3.3VDC ± 0.2V

Output waveform Phase A, phase B channel digital output (TTL)

Output level

Resolution 180 pulses/inch

Signal detection section Transmissive photo interrupter

High output voltage: 2.4VDC (min.) Low output voltage: 0.6VDC (max.)

OPERATING PRINCIPLES Printer Mechanism Operating Principles 50

EPSON Stylus Photo RX680/RX685/RX690 Revision A

2.3 Electrical Circuits Operating Principles

The electric circuits of the Stylus Photo RX680/RX685/RX690 consists of the following boards.

Figure 2-33. Main boards and types

Name Type

Main board C686MAIN

Power supply board C685PSB/PSE

Panel board C686PNL+C685PNL-B

Card board C685STG

2.3.1 Features

 The parallel printing is realized by the adoption of SOC06H which has one

main processor and six processors for image processing

 The wide memory access is realized by mounting the 166Mhz DDR1-

SDRAM on the local side as the image processing memory.

 The ASIC with a built-in CPU is adopted for card controlling. The connection

method with SOC is changed from the previous CPU bus connection to the USB Host connection to improve the card access speed. This IC has the threeports USB2.0 HUB function and using one port for the external USB Host I/F realizes the USB2.0 Host function.

 When shifting to low power mode, the following operation is performed to

reduce the power consumption.

• Turns the power supply voltage down

• Intercepts the optical current of the Optical sensor

• Stops the drive circuits of the motors

• Stops the UDL clock in ASIC

• Shifts the CPU core low consumption mode

• High efficient power supply circuit

• Non-excitation of the printer motor

• Stops the head drive circuit

• Turns the CIS scanner off & releases the excitation of the scanner motor

• Turns the preview monitor off

• Shifts to Card ASIC suspend mode

 Installing the IC which adopts to Multi-common reduces the number of

printing paths so that the printing process time is shortened.

 The costs for the logic power supply and the drive of motors are reduced by

installing A6651, a motor driver with a built-in power source.

 The MW buffer size is reduced to one-third compared to that of Stylus Photo

RX700 by installing UBEC (Ultra Block Encode).

 The color LCD (2.5 inch TFT display) is installed as standard.

OPERATING PRINCIPLES Electrical Circuits Operating Principles 51

EPSON Stylus Photo RX680/RX685/RX690 Revision A

2.3.2 Circuit Board Components

Figure 2-34. Circuit board components

Board Specifications

 Logic circuit

(ASIC with a built-in CPU, Flash ROM*, Serial Flash ROM, DDR-DRAM)

System

Main board

Power supply

Printer

Scanner

Card board

Panel board

LCD module

ISN board

Note *: The Flash ROM will be changed to Mask ROM during the printer is in mass production.

 Interface circuit (USB2.0 Device , USB2.0 Host)  EEPROM  Reset IC  2.5inch color LCD I/F  Panel I/F

 Regulator circuit  Power switch circuit  Over-voltage protect circuit

 Motor control/drive circuit (PF, CR, ASF, ASF_SUB)  Head control/drive circuit  Sensor circuit (PE, APG phase, Front ASF Retard Home,

Rear ASF phase, Rear ASF Home, CDR mode, Duplex unit, Ink end, PW)

 Scanner I/F circuit  Scanner motor control/drive circuit

 Logic circuit (Card control IC)  USB HOST I/F circuit

 Power switch circuit  Switch circuit  LED circuit

 LCD Control circuit  2.5inch LCD Panel  SDRAM

 CCD  AFE  Clock driver  Regulator circuit

OPERATING PRINCIPLES Electrical Circuits Operating Principles 52

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CN7

CPU-ASIC

(IC1)

DDR-DRAM

(IC6)

Motor Driver

(IC11)

Motor Driver

(IC12)

EEPROM

(IC4)

Reset IC

(IC8)

USB2.0

(CN1)

C686 PNL Board

C685 PNL-B Board

C685 PSB/PSE Board

CR Motor

ASF Motor

PrintHead

CR encoder Sensor

CN4

LCD

CN3

ASF Sub Motor

CN16

PF Motor

Scanner Motor

CN17

CN18

CN6

CN10

CN9

CN8

PF encoder Sensor

Scanner encoder Sensor

CN12

CN19

CN20

CN5

CR contact Module

CIS Module

Head Driver

(IC7)

AFE

(IC3)

PWSensor

CN13

Address

Data

Address

Data

ASF encoder Sensor

PE Sensor

Duplex Unit Sensor

Front ASF Retard Home Sensor

Rear ASF Home Sensor

Rear ASF Position Sensor

APG Sensor

CDR mode Sensor

CN14

Cover Open Sensor

CN11

Sub Board

Serial FLASH

ROM (IC9)

USB Host

(CN2)

Card Slot CF (CN7)

Card Slot

MS/SD/xD/MMC (CN8)

C685 STG Board

CN2

FLASH

ROM

(IC2)

2.3.3 Main Board Circuit Block Diagram

OPERATING PRINCIPLES Electrical Circuits Operating Principles 53

Figure 2-35. Stylus Photo RX680/RX685/RX690 circuit block diagram

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CHECK

POINT

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

 Overview

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

Table 2-15. Overview of BRS and PFP

Type Summary

Conventional models perform overlapping printing (2-path or 4path print) to reduce banding problem. Printers that incorporate the Banding Reducing System do not perform the overlapping printing.

BRS

PFP

They carry out 1-path printing correcting ink drop amount for each raster mode in order to avoid making a gap between each path (printed line). This enables to achieve both high print quality (less banding) and high print speed.

In the conventional method to improve paper feed accuracy, the adjustment value is calculated based on a value obtained at a certain point of paper. Therefore, correcting the total paper feed amount (from when paper is fed and to when finishing printing) was impossible. The Paper Feed Amount Profile Correction offers more precise control over the paper feeding. Paper feed errors are measured at various points and a correction value is calculated for each of the points. This enables to ensure print quality in the target print mode.

Paper Type Paper Size Resolutions (dpi)

Ultra Glossy Photo Paper

Premium Glossy Photo Paper

Glossy Photo Paper

Premium Semigloss Photo Paper

Ultra Glossy Photo Paper

Premium Glossy Photo Paper

Glossy Photo Paper

Premium Semigloss Photo Paper

Target Print Mode

4 x 6 inch

(102 x 152 mm)

4 x 6 inch

(102 x 152 mm)

Remarks

720 x 720 ---

720 x 720 With BRS

720 x 360 Without BRS

 Adjustment/Correction method

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

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

OPERATING PRINCIPLES Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP) 54

TROUBLESHOOTING

CHAPTER

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Start

Troubleshooting with LCD indications or by

symptom

Repair or replacement of part/unit

Reassembly and adjustment

End

3.1 Overview

This chapter describes how to troubleshoot problems with LCD indications and by symptom.See the following sections to identify and troubleshoot problems, and repair or replace the faulty component as necessary referring to Chapter 4. Be sure to carry out required adjustments referring to Chapter 5 after the repair or replacement. Troubleshooting information on the motors and sensors is also provided.

Figure 3-1. Troubleshooting Flowchart

3.1.1 Troubleshooting on Motors and Sensors

When the motor or sensor is suspect of causing the problem, check the motor or sensor for any abnormality referring to the following tables.

Table 3-1. Motor Resistance & Check Points

Motor Name Connector Check Points Resistance

CR Motor (DC motor) Sub board: CN4 Pin 1 & 2 19.7Ω ± 10%

PF Motor (DC motor) Main board: CN17 Pin 1 & 2 12.2Ω ± 10%

ASF Motor (DC motor) Sub board: CN5 Pin 1 & 2 21.9Ω ± 10%

ASF Sub Motor (DC motor) Sub board: CN3 Pin 1 & 2 64.7Ω ± 15%

CR Motor (scanner) (DC motor)

Main board: CN18 Pin 1 & 2 T.B.D

Table 3-2. Sensors Check Points

Sensor Name Connector Signal level Sensor Status

PE Sensor

APG Phase Sensor

CDR Mode Sensor

FP (front position) Sensor

RH (rear home) Sensor

RP (rear position) Sensor

Duplex Unit Sensor

Case Open Sensor

Sub board: CN11 Between Pin1 & Pin3

Sub board: CN8 Between Pin1 & Pin3

Main board: CN13 Between Pin1 & Pin2

Sub board: CN9 Between Pin1 & Pin3

Sub board: CN6 Between Pin1 & Pin3

Sub board: CN7 Between Pin1 & Pin3

Sub board: CN13 Between Pin1 & Pin2

Main board: CN14 Between Pin1 & Pin2

2.4V or more Detecting paper

0.4V or less No paper

2.4V or more PG position

0.4V or less Out of PG position

2.4V or more

0.4V or less

2.4V or more

0.4V or less

2.4V or more

0.4V or less

2.4V or more

0.4V or less

2.4V or more No duplex unit

0.4V or less Duplex unit is installed

2.4V or more Case is open

0.4V or less Case is closed

High position (CDR print)/ Low position (ASF print)

Out of above positions (CDR guide is moving)

Front Retard is in upper position

Front Retard is in home position

Rear ASF Hopper is out of home position

Rear ASF Hopper is in home position

Rear ASF Hopper is at arbitrary position

Rear ASF Hopper is between the preset positions (moving)

Note : See “2.1.2 Motors and Sensors” ( p. 26 ) for the motors and sensors mounting positions.

TROUBLESHOOTING Overview 56

Refer to Chapter 2 “OPERATING PRINCIPLES” (p.25) for more information on the sensors status.

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.2 Error/Warning Indications

This sections explains about error/warning messages displayed on the LCD.

3.2.1 List of Error Indications

The following table lists the error messages displayed on the LCD with their possible cause and reference page for troubleshooting. If the error or warning indication you face is not found in the table, refer to the Users Guide.

Table 3-3. Error Messages and Possible Cause

Error Name LCD Message Possible Cause Reference

Communication Error

Maintenance Error Waste ink pad in the printer is saturated. Contact your dealer to replace

it.

FATAL Error A printer error has occurred. Turn off the printer and turn it on

again.Please see your documentation.

Ink cartridge detection Error BLack: XXXX

Color: XXXX

...........................

Ink cartridges cannot be recognized. Make sure ink cartridges are correctly installed.

Ink Cover Open Error The ink cartridge cover is open. Open the scanner unit and close the ink

cartridge cover. Press Ok to continue.

Empty cartridge error BLack: XXXX

Color: XXXX

...........................

Press the OK button to replace the cartridges.

Paper jam (Rear) Paper jam in the rear feeder. Open the scanner unit and remove the

jammed paper. Press the Start button and eject the jammed paper. Please see your documentation.

---

The printer cannot normally communicate with the computer.

The waste ink level reaches to the predetermined limit. Chapter 5 “ADJUSTMENT”

A mechanical error has occurred. Table 3-5, “Fatal Error

The printer could not detect the cartridges.

The printer detected non-Epson cartridges. Writing to/reading from the CSIC cannot be made.

The ink cartridge cover is open.

The ink cartridge has run out of ink.

A paper jam has occurred. Table 3-7, “Paper Jam Error

Table 3-4, “Communication Error Troubleshooting,” (p. 59)

(p.151),

Chapter 6 “MAINTENANCE”

(p.173)

Troubleshooting,” (p. 60)

Table 3-6, “Ink Cartridge Error/ Ink Cover Open Error/Ink Out Error Troubleshooting,” (p. 69)

Troubleshooting,” (p. 70)

Paper jam (Front) Paper jam. Open the rear cover and remove the paper. Press the Start

button and eject the jammed paper. Please see your documentation.

Paper jam (CDR) CD/CVD error. Press the Start button. If the error does not clear, remove

the tray by hand.

TROUBLESHOOTING Error/Warning Indications 57

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 3-3. Error Messages and Possible Cause

Error Name LCD Message Possible Cause Reference

Double Feed Error Multi-page feed error. Remove and reload the paper, then press the Start

button.

Paper Out Error (Rear) Paper out in the rear feeder. Load paper and press the Start button. The printer could not feed the paper. Table 3-8, “Paper Out Error

Paper Out Error (Front) Paper out in the front paper cassette. Load paper and press the Start

button.

CDR Tray Error The CD/DVD tray is set incorrectly. Please correct, then press the Start

button.

CDR Guide Error The CD/DVD guide is in the wrong position. Press the CD Print Tray

button to print on paper. The CD/DVD guide is in the wrong position. Press the CD Print Tray

button to print on CD/DVDs.

Scanner Error A scanner error has occurred. See your documentation. An error has occurred in the scanner mechanism. Table 3-20, “Scanner Errors at

Scanner Open Error Close the scanner unit. Printing was attempted while the scanner unit is open.

Duplex Unit Open Error The Auto Duplexer has been removed. Reattach it. The printer could not detect the duplex unit. Table 3-28, “Duplex Unit Open

Paper jam (Duplex Unit) Paper jam. Remove the Auto Duplexer and clear the paper jam. A paper jam has occurred in the duplex unit. Table 3-29, “Duplex Unit Paper

Note : The “XXXX” represents the part number of the Ink Cartridge.

Multiple sheets of paper were fed at one time.

Troubleshooting,” (p. 74)

The printer could not detect the CDR tray. Table 3-9, “CDR Tray Error

Troubleshooting,” (p. 76)

The specified paper feed operation does not match with the current CDR guide position.

Table 3-10, “CDR Guide Error Troubleshooting,” (p. 77)

User Level,” (p. 84), Table 3-21, “Observation of Trouble and Reference for Remedy,” (p. 84)

Error,” (p. 86)

Jam Error,” (p. 86)

---

TROUBLESHOOTING Error/Warning Indications 58

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.3 Troubleshooting

The following tables describes troubleshooting with error messages. Check the error indication displayed on the LCD or on the screen of the printer driver, and troubleshoot following the corresponding table. If any faulty part or component is found, replace it referring to Chapter 4 “Disassembly/Assembly”

3.3.1 Troubleshooting with Error Indications

Table 3-4. Communication Error Troubleshooting

Occurrence

Timing

At power-on The printer does not operate at all.

Symptom

Faulty Part/

Part Name

Panel Board/

Panel FFC

Power Supply Unit

USB Cable

Printer Driver

Main Board

Check Point Remedy Reference

1. Is the Panel FFC properly connected to the Panel Board and the Main Board?

2. Is the Panel FFC damaged? 2. Replace the Panel FFC.

3. Is the Panel Board damaged? 3. Replace the Panel Board.

1. Is the Power Supply Unit cable properly connected to the Main Board?

2. Is the Power Supply Unit or the power code damaged?

1. Is the USB cable properly connected to the printer and the computer?

1. Is the printer driver for Stylus Photo RX680/ RX685/RX690?

1. Is the model name written to the EEPROM on the Main Board correct?

1. Connect the Panel FFC correctly.

 Main board: CN4

1. Connect the cable correctly.

 Main board: CN5

2. Replace the Power Supply Unit. *If this does not solve the problem,

replace the Main Board.

1. Correctly connect the printer and the

computer with USB cable.

1. Install the correct printer driver.

1. Write the correct name to the EEPROM

using the Initial Setting menu of the Adjustment Program.

“4.2.5 Panel Unit/Upper Housing” ( p. 96 ) / “4.4.3 Disassembling the Panel Unit” ( p. 108 )

“4.5.2 Power Supply Unit” ( p. 113 )

---

“5.2 Adjustment by Using Adjustment Program” ( p. 157 )

TROUBLESHOOTING Troubleshooting 59

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

• The CR Motor does not move at all.

• The Carriage Assy hits against the right side of the Main Frame.

Faulty Part/

Part Name

CR Motor

CR Encoder

CR Scale

Main Frame

Check Point Remedy Reference

1. Is the CR Motor cable properly connected to connector CN4 on the Sub Board?

2. Is the motor relay cable properly connected to connector CN1 on the Sub Board and connector CN16 on the Main Board?

3. Does the CR Motor operate normally? 3. Replace the CR Motor with a new one.

1. Is the CR Encoder damaged? 1. Replace the CR Encoder with a new one.

2. Is the FFC properly connected to the connector on the CR Encoder?

1. Does the CR Scale properly run through the slit of the CR Encoder?

2. Is the CR Scale surface clean? 2. Wipe any dirt off the surface of the CR

3. Is the CR Scale damaged? 3. Replace the CR Scale with a new one.

1. Is the Main Frame free of dirt, and adequately lubricated?

1. Connect the cable correctly. “4.5.7 APG

2. Correctly connect the motor relay cable to the connectors on the boards.

2. Correctly connect the Head FFC.

1. Install the CR Scale correctly.

Scale.If this does not work, replace the CR Scale with a new one.

1. Clean the Main Frame and lubricate it as specified.

Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

“4.5.12 CR Motor” ( p. 129 )

“4.5.13 Carriage Assy” ( p. 130 )

“4.5.5 CR Scale” ( p. 117 )

“6.1.3 Lubrication” ( p. 175 )

• The Carriage Assy moves too slow.

CR Shaft

Timing Belt

1. Is the CR Shaft free of dirt, and adequately lubricated?

1. Is the Timing Belt correctly attached? 1. Install the Timing Belt correctly.

1. Clean the CR Shaft and lubricate it as specified.

“6.1.3 Lubrication” ( p. 175 )

“4.5.13 Carriage Assy” ( p. 130 ) “4.5.12 CR Motor” ( p. 129 )

TROUBLESHOOTING Troubleshooting 60

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

• The PF Roller makes a quick turn and then the error occurs.

Faulty Part/

Part Name

PF Motor

PF Encoder

PF Scale

Check Point Remedy Reference

1. Is the PF Motor cable properly connected to connector CN17 on the Main Board?

2. Does the PF Motor operate normally? 2. Replace the PF Motor with a new one

1. Is the PF Encoder FFC properly connected to connector CN12 on the Main Board and the connector on the encoder?

2. Is the PF Encoder damaged? 2. Replace the PF Encoder with a new one.

1. Is the PF Scale surface clean? 1. Wipe any dirt off the surface of the PF

2. Is the PF Scale damaged? 2. Replace the PF Scale with a new one.

1. Connect the cable correctly. “4.4.1 Main

1. Connect the PF Encoder FFC correctly.

Scale.If this does not work, replace the PF Scale with a new one.

Board Assy” ( p. 106 )

“4.5.11 PF Motor” ( p. 128 )

“4.4.1 Main Board Assy” ( p. 106 )

“4.5.10 PF Encoder” ( p. 127 )

“4.5.22 Paper Guide Front & EJ Roller Assy/ PF Roller Assy” ( p. 145 )

TROUBLESHOOTING Troubleshooting 61

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Ink System

Extension Spring 0.8

Carriage Lock

Ink System

[Right rear]

Extension Spring

Change Lever

ASF Motor

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

• The CR Unit hits against the Change Lever that is being locked during the power-on sequence.

Faulty Part/

Part Name

Ink System

Check Point Remedy Reference

1. Is the extension spring 0.8 of the Ink System

1. Attach the extension spring 0.8 correctly.

disengaged?

2. Is the Carriage Lock correctly attached? 2. Install the Carriage Lock correctly.

“4.5.19 Ink System” ( p. 142 )

TROUBLESHOOTING Troubleshooting 62

Rear ASF Assy

1. Is the extension spring 2.36 of the Change Lever disengaged?

1. Attach the extension spring 2.36 correctly.

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CDR Planetary

CDR Link Arm

CDR Link Lever

EJ Roller Assy

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

• An abnormal noise sounds when the PF Motor drives and then the error is displayed.

• The PF Roller and the EJ Roller do not rotate normally.

• The CR Unit hits against the Left and Right Upper Paper Guides during the power-on sequence.

• The ASF Motor does not operate at all.

Faulty Part/

Part Name

CDR Link Lever

PF Motor/PF

Timing Belt

Left/Right Upper

Paper Guide

ASF Motor

Check Point Remedy Reference

1. Are the CDR Link Lever and the CDR planetary gears properly engaged and installed?

1. Is the PF Timing Belt damaged? 1. Replace the PF Timing Belt with a new

2. Is the PF Motor properly installed, and does the PF Timing Belt have a proper tension?

1. Are the springs of the Left/Right Upper Paper Guides disengaged?

1. Is the ASF Motor cable properly connected to connector CN5 on the Sub Board?

2. Is the motor relay cable properly connected to connector CN1 on the Sub Board and connector CN16 on the Main Board?

3. Is the ASF Scale surface clean? 3. Replace the ASF Motor with a new one.

4. Is the ASF Scale damaged? 4. Replace the ASF Motor with a new one.

5. Does the ASF Motor operate normally? 5. Replace the ASF Motor with a new one.

1. Install the CDR Link Lever and the CDR planetary gears correctly.

one.

2. Install the PF Motor correctly and adjust the tension of the PF Timing Belt properly.

1. Install the Left/Right Upper Paper Guides correctly.

1. Connect the cable correctly. “4.5.7 APG

2. Correctly connect the motor relay cable to the connectors on the boards.

“4.5.9 EJ Frame Assy/CDR Guide Assy” ( p. 124 )

“4.5.11 PF Motor” ( p. 128 ) Chapter 5 “ADJUSTMEN T” (p.151)

“4.5.14 Paper Guide Upper L/ R” ( p. 133 )

Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

“4.5.20 ASF Motor Assy” ( p. 143 )

TROUBLESHOOTING Troubleshooting 63

EPSON Stylus Photo RX680/RX685/RX690 Revision A

ASF Sub Motor

[Right side]

Planetary

Gear

Spur Gear

Cam

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

• The ASF Motor makes a quick turn and then the error occurs.

• The ASF Sub Motor does not operate at all.

• The Rear ASF cannot be reset (the Hopper does not operate)

Faulty Part/

Part Name

ASF Encoder

ASF Sub Motor

Rear ASF Assy

Check Point Remedy Reference

1. Is the ASF Encoder cable properly connected to

1. Connect the cable correctly.

connector CN10 on the Sub Board?

2. Is the sensor relay cable (FFC) properly connected to connector CN2 on the Sub Board and connector

2. Correctly connect the sensor relay cable (FFC) to the connectors on the boards.

CN11 on the Main Board?

3. Is the ASF Encoder damaged? 3. Replace the ASF Encoder with a new one.

1. Is the ASF Sub Motor cable properly connected to

1. Connect the cable correctly.

connector CN3 on the Sub Board?

2. Is the motor relay cable properly connected to

connector CN1 on the Sub Board and connector

2. Correctly connect the motor relay cable to the connectors on the boards.

CN16 on the Main Board?

3. Does the ASF Sub Motor operate normally? 3. Replace the ASF Sub Motor with a new one.

1. Is the RASF planetary gear correctly engaged with

the cam of the spur gear 34.4?

1. Install the RASF planetary gear correctly.

“4.5.7 APG Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

TROUBLESHOOTING Troubleshooting 64

EPSON Stylus Photo RX680/RX685/RX690 Revision A

ASF Sub Motor

[Right side]

Planetary

Gear

Spur Gear

Cam

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

• The error is displayed after up/ down movements of the Hopper

• The Front ASF cannot be reset (the Front Retard Roller is kept lifted)

Faulty Part/

Part Name

Rear Position

Sensor

Rear Home Sensor

Front Position

Sensor

Rear ASF Assy

Check Point Remedy Reference

1. Is the RP (rear position) Sensor cable properly connected to connector CN6 on the Sub Board?

2. Is the sensor relay cable (FFC) properly connected to connector CN2 on the Sub Board and connector CN11 on the Main Board?

1. Is the RP (rear home) Sensor cable properly connected to connector CN7 on the Sub Board?

2. Is the sensor relay cable (FFC) properly connected to connector CN2 on the Sub Board and connector CN11 on the Main Board?

1. Is the Front Position Sensor cable properly connected to connector CN9 on the Sub Board?

2. Is the sensor relay cable (FFC) properly connected to connector CN2 on the Sub Board and connector CN11 on the Main Board?

1. Is the RASF planetary gear correctly engaged with the cam of the spur gear 34.4?

1. Connect the cable correctly.

2. Correctly connect the sensor relay cable (FFC) to the connectors on the boards.

1. Connect the cable correctly.

2. Correctly connect the sensor relay cable (FFC) to the connectors on the boards.

1. Connect the cable correctly.

2. Correctly connect the sensor relay cable (FFC) to the connectors on the boards.

1. Install the RASF planetary gear correctly.

“4.5.17 ASF Sub Motor/RH Sensor/RP Sensor” ( p. 137 )

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

TROUBLESHOOTING Troubleshooting 65

EPSON Stylus Photo RX680/RX685/RX690 Revision A

[HP side]

Transmissive Combination

Gear

APG Assy

Left PG Cam

CR Shaft

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Changing APG

Symptom

• The error is displayed when the printer is resetting or changing the APG.

Faulty Part/

Part Name

Check Point Remedy Reference

1. Is the APG Assy correctly installed? 1. Install the APG Assy correctly aligning the phase.

2. Is the transmissive combination gear 20.8, 11.5

properly engaged?

2. Install the transmissive combination gear correctly.

APG Assy

APG Phase Sensor 1. Is the APG Phase Sensor damaged? 1. Replace the APG Assy with a new one.

1. Is the left cam damaged? 1. Replace the left PG cam with a new one.

CR Shaft

“4.5.7 APG Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

“4.5.13 Carriage Assy” ( p. 130 )

TROUBLESHOOTING Troubleshooting 66

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CDR Link Arm

Torsion

Spring

[Left rear]

APG Planetary

Gear

Spur Gear

11.2

[Right side]

Transmissive

Combination Gear

(APG)

Ink System

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

At power-on

Changing APG

Symptom

• The error is displayed when the printer is resetting or changing the APG.

Faulty Part/

Part Name

ASF Motor

CDR Link Arm

Check Point Remedy Reference

1. Is the ASF Motor cable properly connected to

1. Connect the cable correctly. “4.5.7 APG

connector CN5 on the Sub Board?

2. Is the motor relay cable properly connected to connector CN1 on the Sub Board and connector

2. Correctly connect the motor relay cable to the connectors on the boards.

CN16 on the Main Board?

3. Is the ASF Scale surface clean? 3. Replace the ASF Motor with a new one.

4. Is the ASF Scale damaged? 4. Replace the ASF Motor with a new one.

5. Does the ASF Motor operate normally? 5. Replace the ASF Motor with a new one.

1. Is the torsion spring of the CDR Link Arm properly attached?

1. Install the torsion spring of the CDR Link Lever correctly.

1. Is the APG planetary gear correctly engaged? 1. Install the APG planetary gear correctly.

Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

“4.5.20 ASF Motor Assy” ( p. 143 )

“4.5.22 Paper Guide Front & EJ Roller Assy/ PF Roller Assy” ( p. 145 )

TROUBLESHOOTING Troubleshooting 67

APG Planetary Gear

“4.5.20 ASF Motor Assy” ( p. 143 )

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 3-5. Fatal Error Troubleshooting

Occurrence

Timing

Any time

Symptom

Symptom other than those described on the previous pages

Faulty Part/

Part Name

Printhead

PW Sensor

Main Board

Check Point Remedy Reference

1. Is the Printhead damaged? 1. Replace the Printhead with a new one.

1. Is the Head FFC properly connected to connector CN10 on the Main Board?

1. Check the Main Board for damage. 1. Replace the Main Board with a new one.

1. Correctly connect the Head FFC.

“4.5.6 Printhead” ( p. 118 )

“4.4.1 Main Board Assy” ( p. 106 )

TROUBLESHOOTING Troubleshooting 68

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Memory Chip

Ink Cartridge

CSIC terminal

CSIC ASSY

[Rear]

Head Board

Table 3-6. Ink Cartridge Error/Ink Cover Open Error/Ink Out Error Troubleshooting

Occurrence

Timing

At power-on

Symptom

The error is displayed after the printer detects that the Carriage Assy is in the home position.

Faulty Part/

Part Name

Ink Cartridge

Head FFC

Check Point Remedy Reference

1. Is the memory chip on the ink cartridge disconnected or damaged?

1. Is the Head FFC properly connected to connector

1. Replace the Ink Cartridge with a new one.

1. Correctly connect the Head FFC.

CN6, CN7, CN8, CN9, CN10 on the Printhead, Head Board, CR Encoder, and the Main Board?

1. Is the CSIC terminals damaged? 1. Replace the CSIC Assy with a new one.

---

“4.5.13 Carriage Assy” ( p. 130 ) “4.4.1 Main Board Assy” ( p. 106 )

“4.5.6 Printhead” ( p. 118 )

Head Board

2. Is the Head Board damaged? 2. Replace the CSIC Assy with a new one.

TROUBLESHOOTING Troubleshooting 69

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Retard

Roller

Extension

Spring

Rear ASF

Table 3-7. Paper Jam Error Troubleshooting

Occurrence

Timing

Any time

Symptom

Paper feed operation is performed normally, but the paper is not fed inside the printer.

Faulty Part/

Part Name

Rear ASF Assy

Front ASF Cover

Assy

Check Point Remedy Reference

1. Is the Rear ASF Assy correctly installed? 1. Install the Rear ASF Assy correctly.

2. Does the Paper Back Lever operate normally during the paper feed operation?

3. Does the Retard Roller Assy operate normally during the paper feed operation?

2. Install the Paper Back Lever and the torsion spring 6.45 correctly.

3. Correctly attach the extension spring

1.98 on the backside of the Retard Roller Assy.

4. Are there any micro pearl paper dust or greasy dirt

4. Clean the rollers. “Table 3-11.

attached on the surface of the LD Roller and the Retard Roller?

1. Is the Front ASF Cover Assy correctly installed? 1. Install the Front ASF Cover Assy correctly.

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

Troubleshooting Paper Feed Problems” ( p. 78 )

“4.2.4 Front ASF Cover Assy” ( p. 96 )

1. Is the Paper Guide Bank Assy correctly installed? 1. Install the Paper Guide Bank Assy correctly.

“4.5.23 Paper Guide Bank Assy” ( p. 149 )

Paper Guide Bank

Assy

2. Are there any micro pearl paper dust or greasy dirt

attached on the surface of the Front Retard Roller?

2. Clean the rollers. “Table 3-11.

Troubleshooting Paper Feed Problems” ( p. 78 )

TROUBLESHOOTING Troubleshooting 70

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Lumiler

(PE Sensor)

[Right rear]

Retard

Roller

Extension

Spring

Rear ASF

Table 3-7. Paper Jam Error Troubleshooting

Occurrence

Timing

Any time

Symptom

Paper feed operation is performed normally, but the paper is not fed inside the printer.

Faulty Part/

Part Name

Idle Roller

PE Sensor

Check Point Remedy Reference

1. Are there any micro pearl paper dust or greasy dirt attached on the surface of the Idle Roller?

1. Is the PE Sensor cable properly connected to connector CN11 on the Sub Board?

2. Is the sensor relay cable (FFC) properly connected to connector CN2 on the Sub Board and connector CN11 on the Main Board?

3. Is the lumiler protecting the PE Sensor contaminated?

1. Clean the rollers. “Table 3-11.

Troubleshooting Paper Feed Problems” ( p. 78 )

1. Correctly connect the PE Sensor cable to

the connector on the Sub Board.

2. Correctly connect the sensor relay cable

to the connectors on the boards.

“4.4.1 Main Board Assy” ( p. 106 )/“4.5.7 APG Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

3. Replace the Rear Paper Guide with a

new one.

“4.5.15 Paper Guide Rear/PE Sensor” ( p. 134 )

TROUBLESHOOTING Troubleshooting 71

Multiple sheets of paper are always fed at one time.

Rear ASF Assy

4. Is the PE Sensor damaged? 4. Replace the Rear Paper Guide with a new one.

1. Does the Retard Roller Assy operate normally

during the paper feed operation?

1. Correctly attach the extension spring

1.98 on the backside of the Retard Roller Assy.

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Lumiler

(PE Sensor)

[Right rear]

Table 3-7. Paper Jam Error Troubleshooting

Occurrence

Timing

Any time

Symptom

The paper is ejected immediately after it is fed.

Faulty Part/

Part Name

PE Sensor

Check Point Remedy Reference

1. Is the PE Sensor cable properly connected to

connector CN11 on the Sub Board?

2. Is the sensor relay cable (FFC) properly connected

to connector CN2 on the Sub Board and connector CN11 on the Main Board?

3. Is the lumiler protecting the PE Sensor

contaminated?

4. Is the PE Sensor damaged? 4. Replace the Rear Paper Guide with a

1. Correctly connect the PE Sensor cable to the connector on the Sub Board.

2. Correctly connect the sensor relay cable to the connectors on the boards.

3. Replace the Rear Paper Guide with a new one.

new one.

“4.4.1 Main Board Assy” ( p. 106 )/“4.5.7 APG Assy/Sub Board/ASF Encoder/Retard ASF Assy” ( p. 120 )

“4.5.15 Paper Guide Rear/PE Sensor” ( p. 134 )

TROUBLESHOOTING Troubleshooting 72

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Star Wheel Roller Holder

EJ Frame Assy* (backside)

Table 3-7. Paper Jam Error Troubleshooting

Occurrence

Timing

Any time

Symptom

The top edge of paper cannot run through between the EJ Roller and the Star Wheel Rollers.

Faulty Part/

Part Name

Waste Ink Pad on

the Front Paper

Guide

EJ Frame Assy*

EJ Frame Assy,

CDR Guide Assy

Check Point Remedy Reference

1. Is the Waste Ink Pads correctly attached on the Front Paper Guide?

1. Is the Star Wheel Roller Holder disengaged? 1. Install the Star Wheel Roller Holder

2. Is the EJ Frame Assy correctly installed? 2. Install the EJ Frame Assy correctly.

3. Is the EJ Frame Assy deformed protruding downward?

1. Are the Left/Right EJ Link Levers correctly installed?

1. Correctly attach the Waste Ink Pads on the Front Paper Guide.

correctly.

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

1. Install the EJ Link Levers correctly. “4.5.9 EJ Frame

“4.5.22 Paper Guide Front & EJ Roller Assy/ PF Roller Assy” ( p. 145 )

“4.5.9 EJ Frame Assy/CDR Guide Assy” ( p. 124 )

Assy/CDR Guide Assy” ( p. 124 )

The top edge of paper does not reach the PF Roller.

Note : * A paper jam may result in damaging the Printhead because the paper can rub against the Printhead surface.

Left/Right Upper

Paper Guide*

1. Are the springs of the Left/Right Upper Paper Guides disengaged?

1. Install the Left/Right Upper Paper Guides correctly.

“4.5.14 Paper Guide Upper L/ R” ( p. 133 )

TROUBLESHOOTING Troubleshooting 73

EPSON Stylus Photo RX680/RX685/RX690 Revision A

ASF Sub Motor

[Right side]

Planetary

Gear

Spur Gear

Cam

ASF Motor

Torsion

Spring

Hook

[Right side]

Table 3-8. Paper Out Error Troubleshooting

Occurrence

Timing

Any time

Symptom

The LD Roller shaft rotates to feed paper, but the Hopper does not move.

The LD Roller shaft rotates normally, but paper is not fed.

Faulty Part/

Part Name

Rear ASF Assy

Check Point Remedy Reference

1. Does the Hopper operate normally during the paper feed operation?

1. Correctly attach the compression spring

2.51 in between the ASF Frame and the Hopper.

2. Is the RASF planetary gear correctly engaged with the cam of the spur gear 34.4?

1. Is there any paper dust attached on the surface of the LD Roller?

3. Install the RASF planetary gear correctly.

1. Clean the LD Roller surface with a cloth moistened with alcohol. *If this does not solve the problem, replace the LD Roller with a new one.

1. Is the torsion spring correctly attached? 1. Attach the torsion spring correctly.

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

TROUBLESHOOTING Troubleshooting 74

The ASF Motor drive force is not transmitted to the LD Roller shaft.

Rear ASF Assy

EPSON Stylus Photo RX680/RX685/RX690 Revision A

[Right rear]

Extension Spring

Change Lever

ASF Motor

LD Roller

ASF Motor

Planetary

Gear

ASF Motor

Table 3-8. Paper Out Error Troubleshooting

Occurrence

Timing

Any time

Symptom

The ASF Motor drive force is not transmitted to the LD Roller shaft.

Faulty Part/

Part Name

Rear ASF Assy

Check Point Remedy Reference

2. Is the extension spring 0.76 of the Change Lever disengaged?

3. Are the gears on the Rear ASF correctly engaged with each other?

2. Attach the extension spring 0.76 correctly.

3. Reassemble the Rear ASF correctly.If this does not solve the problem, replace the Rear ASF Assy with a new one. (See Chapter 2

drive force transmission” ( p. 41 )

“Flowchart 2-8. ASF motor

for

explanations of the gears.)

“4.5.16 Rear ASF Assy/ Change Lever” ( p. 135 )

TROUBLESHOOTING Troubleshooting 75

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Protrusion

CDR Tray

Marking

CDR Tray

Table 3-9. CDR Tray Error Troubleshooting

Occurrence

Timing

When printing on

CDR

Symptom

The CDR tray is properly set to print on CD/DVD, but the error occurs.

The CDR tray center detection sequence is interrupted and the CDR is ejected.

Faulty Part/

Part Name

CDR Tray

CDR Mode

Sensor

CDR Tray

Check Point Remedy Reference

1. Is the protrusion on the CDR tray that contacts with the CDR Mode Sensor cracked?

1. Is the CDR Mode Sensor cable properly connected to CN13 connector on the Main Board?

2. Is the CDR Mode Sensor damaged? 2. Replace the CDR Mode Sensor with a

1. Is there any paper dust or foreign materials attached on the white marking area on the CDR tray?

1. Replace the CR tray with a new one.

1. Connect the cable correctly.

new one.

1. Clean the marking area on the CDR tray.

---

“4.5.9 EJ Frame Assy/CDR Guide Assy” ( p. 124 )

---

TROUBLESHOOTING Troubleshooting 76

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Cable

PW Sensor

Encoder

Board

Table 3-9. CDR Tray Error Troubleshooting

Occurrence

Timing

When printing on

CDR

Occurrence

Timing

Symptom

The CDR tray center detection sequence is interrupted and the CDR is ejected.

Symptom

Faulty Part/

Part Name

PW Sensor

Main Board

1. Is the PW Sensor free of paper dust or ink stain? 1. Clean the surface of the PW Sensor.

2. Is the PW Sensor cable properly connected to the CR Encoder Board and the PW Sensor connector?

3. Is the PW Sensor cable damaged?

4. Is the PW Sensor damaged?

1. Check the circuit components on the Main Board for damage.

Check Point Remedy Reference

Table 3-10. CDR Guide Error Troubleshooting

Faulty Part/

Part Name

Check Point Remedy Reference

2. Connect the cable correctly.

3. Replace the Carriage Assy with a new one.

4. Replace the Carriage Assy with a new one.

1. Replace the Main Board with a new one.

“4.5.13 Carriage Assy” ( p. 130 )

“4.4.1 Main Board Assy” ( p. 106 )

1. Is the CDR Mode Sensor cable properly connected to CN13 connector on the Main Board?

CDR Mode

Sensor

When printing on

CDR

TROUBLESHOOTING Troubleshooting 77

The CDR Guide is set properly, but the error occurs.

CDR Guide Assy 1. Is the CDR Guide Assy correctly installed? 1. Install the CDR Guide Assy correctly.

Main Board

2. Is the CDR Mode Sensor damaged? 2. Replace the CDR Mode Sensor with a

3. Is the CDR Mode Sensor cable broken? 3. Replace the CDR Mode Sensor with a

1. Check the circuit components on the Main Board for damage.

1. Connect the cable correctly.

“4.5.9 EJ Frame

new one.

1. Replace the Main Board with a new one. “4.4.1 Main

Assy/CDR Guide Assy” ( p. 124 )

Board Assy” ( p. 106 )

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.4 Troubleshooting by Symptom (no error indications)

3.4.1 Troubleshooting Printer Mechanism Problems

This section provides troubleshooting information for printing problems.

 Paper feed error

Table 3-11. Troubleshooting Paper Feed Problems

Problem Possible Cause Check Point Remedy

Clean the roller using a cleaning sheet.

1. Load a cleaning sheet upside down on the ASF,

2. Start paper feed operation using the button on the control panel.

3. Repeat the above procedure several times.

Paper is not fed

Contamination or wear of the Front Retard Roller, Pickup Roller, Idle Roller, LD Roller, and Retard Roller.

Abnormal operation of the paper feed mechanism

Are there any micro pearl paper dust or greasy dirt attached on the surface of the Paper Feed Roller?

Is there any abnormality found in the paper feed mechanism?

To remove severe smear, staple a cloth moistened with alcohol to a post card and clean the roller using it as described below.

1. Load the post card on the ASF so that the alcohol-moistened cloth contacts with the LD Roller surface (or Retard Roller surface).

2. Holding the top edge of the card, press the button on the control panel to start paper feeding.

3. Repeat the paper feed operation several times. The roller surface (LD Roller or Retard Roller) is cleaned.

If this does not solve the problem, replace the LD Roller and the Retard Roller with new ones.

 Make sure the gears on the mechanism are properly engaged.  If any obstructions or foreign material is found inside the mechanism, remove it.

 Paper eject error

Table 3-12. Troubleshooting Paper Ejection Problems

Problem Possible Cause Check Point Remedy

Paper get jammed before being ejected.

Paper feed operation error

EJ Roller operation failure Does the EJ Roller rotate normally?

Does the PF Roller rotate normally and is the rotational force transmitted to the EJ Roller correctly?

Check the PF Motor for proper installation, and check the PF Timing Belt for a proper tension.(

“ 4.5.11 PF Motor ” (p.128))

TROUBLESHOOTING Troubleshooting by Symptom (no error indications) 78

EPSON Stylus Photo RX680/RX685/RX690 Revision A

 Carriage error

Table 3-13. Troubleshooting Carriage Problems

Problem Possible Cause Check Point Remedy

Is there any obstructions on the Carriage path? Remove the obstructions.

The movement of the Carriage Assy during printing is abnormal.

The Carriage Assy does not move smoothly.

Does the Carriage Assy move smoothly when it is manually moved?

Does the Head FFC has an adequate slack and not interrupting the Carriage movement? Check the FFC status by manually moving the Carriage Assy to the left and to the right.

Are the springs that secure the Change Lever and Change Slider disengaged?

Clean the CR shaft and lubricate it as specified.(See “ 6.1.3 Lubrication ” (p.175))

Route the Head FFC correctly on the Main Frame.

Attach the springs correctly.(“ 4.5.16 Rear ASF Assy/Change Lever ” (p.135))

TROUBLESHOOTING Troubleshooting by Symptom (no error indications) 79

EPSON Stylus Photo RX680/RX685/RX690 Revision A

 Print error

Table 3-14. Troubleshooting Printing Problems

Problem Possible Cause Check Point Remedy

Certain dots are always not printed correctly

Dots are sometimes missing

Printout is totally abnormal

Vertical lines are not straight

White streaking

Contamination of the Printhead surface (dots are missing)

The capping absorber contacts with the Printhead surface.

Head FFC failure Is the Head FFC damaged? Replace the Head FFC with a new one.

Printhead failure Run a cleaning and nozzle check. Repeat it several times. If the cleaning does not solve the problem, replace the Printhead with a new one.

Contamination of the Printhead surface (dots are missing)

Ink Cartridge failure

Poor connection of the Head FFC Check the FFC using a tester. Does the result show abnormality? Replace the Head FFC with a new one.

Printhead failure Run a cleaning several times, and then run a nozzle check. If the cleaning does not solve the problem, replace the Printhead with a new one.

Poor connection of the Head FFC Is the FFC securely connected to the boards and Carriage Assy? Securely connect the Head FFC.

Printhead failure Is the Head FFC securely connected to the Printhead? If no problem is found in the connection, replace the Printhead with a new one.

Incorrect Bi-D adjustment Has the Bi-D adjustments been carried out properly?

Contamination of the CR shaft Is the CR shaft free of dirt? Clean the CR shaft surface with a soft dry cloth.

PF Roller failure

Ink Cartridge failure Set new ink cartridges and make a test print. The problem does not occur? Replace the Ink Cartridge with a new one.

Sliding operation failure of the Carriage

Incorrect platen gap Are the platen gap settings correct? Correct the platen gap setting.(See “ 5.3.1 PG Adjustment ” (p.161))

Damage of gears

Due to contamination on the Printhead surface, ink droplets are fired diagonally.

Printhead failure Run a cleaning several times, and make a test print. Replace the Printhead with a new one.

CR shaft failure

Run a cleaning and make a test print. Repeat it several times. Clean the Printhead surface using a cotton-tipped swab.

Is the capping absorber deformed or damaged? Replace the Ink System with a new one.

Run a cleaning and nozzle check. Repeat it several times. Clean the Printhead surface using a cotton-tipped swab.

Replace the ink cartridges with new ones, and run a nozzle check. The problem does not occur?

Is the PF Roller free of dirt? Carefully clean the PF Roller surface with a soft brush.

Is the PF Roller damaged? Replace the PF Roller with a new one.

Is the backside of the Main Frame where the Carriage slides against adequately lubricated?

Are the gears of the PF and ASF mechanisms free of damage or deformation?

Run a cleaning and make a test print. Repeat it several times. Clean the Printhead surface using a cotton-tipped swab.

Is the Cleaner Blade free of dust or dirt? Clean the Cleaner Blade or replace it with a new one.

Is the CR shaft correctly installed? Reassemble the CR shaft.

Is the CR shaft surface damaged? Replace the CR shaft with a new one.

Replace the Ink Cartridge with a new one.

Carry out the Bi-D adjustment.(See “ 5.2 Adjustment by Using Adjustment

Program ” (p.157))

Clean the Main Frame and apply G-71 grease as specified. (See “ 6.1.3 Lubrication ” (p.175))

Replace the faulty part with a new one.

TROUBLESHOOTING Troubleshooting by Symptom (no error indications) 80

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.4.2 Troubleshooting Electrical Problems

Check the points described in the table below when the printer does not operate at all (LED does not light) at power-on.

Table 3-15. Troubleshooting Electrical Problems

Possible Cause Check Point Remedy

Power code failure

Incorrect AC power supply Does the AC power source match with the requirement of the printer? Use the correct power source.

Poor connection of the connectors Is the Power Supply Unit cable properly connected to CN5 connector on the Main Board? Connect the cable correctly.

Fuse failure Is the fuse (F1) on the Power Supply Board blown? Replace the Power Supply Board.

Abnormal output of the Power Supply Board Is a normal voltage being output from the Power Supply Board?

Replace the power code with another one, and check whether the printer is normally powered or not.

Replace the power code with a new one.

Replace the Main Board when the output voltage is normal. Replace the Power Supply Unit when the output voltage is abnormal.

3.4.3 Troubleshooting Ink Supply Problems

 Normal print cannot be made

Table 3-16. Troubleshooting Printing Problems

Problem Possible Cause Check Point Remedy

Set new ink cartridges and make a test print. The problem does not occur?

Is the Head FFC properly connected to the Head Board and connector CN7 on the Main Board?

Check the FFC using a tester. Does the result show abnormality?

Replace the Ink Cartridge with a new one.

Correctly connect the Head FFC.

Replace the Head FFC with a new one.

Install the ink cartridges correctly. If this does not solve the problem, replace the ink cartridges or the Printhead with a new ones.

The carriage moves correctly, but the printout is abnormal.

Ink Cartridge failure

Incorrect connection of the Head FFC.

Cleaner Blade failure Is the Cleaner Blade free of dust or dirt? Clean the Cleaner Blade or replace it with a new one.

Poor connection of the Head FFC

Printhead failure Run a cleaning and make a test print. Repeat it several times. If the cleaning does not solve the problem, replace the Printhead with a new one.

Ink leak or clogging Is ink leakage observed on the Printhead?

TROUBLESHOOTING Troubleshooting by Symptom (no error indications) 81

EPSON Stylus Photo RX680/RX685/RX690 Revision A

 Waste ink error

Table 3-17. Troubleshooting Ink Suction/Waste Ink Problems

Problem Possible Cause Check Point Remedy

The pump tube is partially flat. Is the tube properly rooted without being pressed? Replace the Ink System with a new one.

Ink is not properly transported from the Printhead to the cap, or from the cap to the ink tube.

Contamination or damage of the cap

Disconnection of the tube Is the tube disconnected from the bottom of the cap? Securely connect the tube.

Cap movement failure

Depression of the tube

Is the cap free of foreign materials or damage?

Is the compression spring of the cap section properly engaged?

Is the tube depressed in between the Waste Ink Pads and Ink System?

Clean the cap with a cotton-tipped swab. If it is damaged, replace the Ink System with a new one.

Replace the Ink System with a new one.

Root the tube correctly and securely connect it with the tube of the Waste Ink Pad.

TROUBLESHOOTING Troubleshooting by Symptom (no error indications) 82

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.4.4 Troubleshooting I/F-related Problems

This section provides troubleshooting information on the USB interfaces and memory card slot related problems.

 USB I/F error

Table 3-18. Troubleshooting USB I/F Problems

Possible Cause Check Point Remedy

Click My Computer → Property → Device Incorrect printer driver installation

USB cable failure

Poor connection

Main Board failure Is the Main Board damaged? Replace the Main Board.

Card Board failure Is the Card Board damaged? Replace the Card Board.

Manager on Windows computer. Is the printer

driver is included in the Other Devices by

mistake?

Replace the cable with another one.The

problem does not occur?

Is the USB terminal free of foreign materials?

 Memory Card related error

Table 3-19. Troubleshooting Memory Card Problems

Possible Cause Check Point Remedy

Uninstall the driver and reinstall it correctly referring to the User’s Guide.

Replace the USB cable with a new one.

Remove the foreign material, and clean the contact points.

Table 3-19. Troubleshooting Memory Card Problems

Possible Cause Check Point Remedy

Is there any disconnected FFCs or

Electric noise

Main Board failure Is the Main Board damaged? Replace the Main Board with a new one.

Card Board failure Is the Card Board damaged? Replace the Card Board with a new one.

displaced ferrite cores inside the printer?

If no disconnection or displacement is found, replace the Main Board with a new one.

Corruption of data in the memory card

Unsupported memory card

Memory card failure

Poor connection

Firmware failure - Upload the firmware.

The memory card data may have been

corrupted due to static electricity or

any other cause.

Is the memory card supported by the

printer?

Check if the printer can read

another memory card. Does the

printer normally read the card?

Is there any dust or foreign material

inside the memory card slot or on the

memory card?

Are the slot pins bent or broken?

Check the card whether it can be read by a computer. If the card cannot be read by the computer, format the card.

Use a memory card supported by the printer.

Use the another memory card.

Remove the foreign material, and clean the contact points.

Replace the Card Board.

TROUBLESHOOTING Troubleshooting by Symptom (no error indications) 83

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.5 Troubleshooting for Scanner

This section describes repair/service for the Scanner mechanism. In troubleshooting, first identify the trouble at the Assy level based on the observation. According to the observation as described in Table 3-21 (p.84) , perform the necessary checking by referring to the appropriate table.

 Scanner Errors at User Level

Table 3-20. Scanner Errors at User Level

Error Cause Remedy

Scanner error

Command error

Scanner open

• Defective CIS unit

• Defective scanner motor

• The scanner carriage is interfering with any other part.

Undefined command is detected.

Scanner cover is open. Close the cover.

• Replace the scanner carriage Assy.

• Remove the obstacle.

When correct command is received, error status is cancelled.

Turn the power off once and then turn it on again.

 Observation of Trouble and Reference for Remedy

Table 3-21. Observation of Trouble and Reference for Remedy

Observation Description of Trouble

Reference for

Remedy

Table 3-21. Observation of Trouble and Reference for Remedy

Observation Description of Trouble

Picture is not read clearly. Picture is not read clearly.

“Communication error”. Indication error occurs and when

communication with the host is tried again, “Communication error” recurs.

USB interface error

 Scanner does not operate for initialization

Table 3-22. Scanner does not operate for initialization

Cause Check Point Yes/No Remedy

Connector is disconnected.

Check each connector for disconnection. Is there any connector disconnected?

Yes

No Replace the main board.

 Carriage unit does not operate

Table 3-23. Carriage unit does not operate

Cause Check Point Yes/No Remedy

Connector on the Main Board is disconnected

 Is any of the connectors

(CN18, 19 and 20) on the Main Board disconnected?

Yes Connect the connector.

Reference for

Remedy

Table 3-26

(p.85)

Table 3-18

(p.83)

Connect the disconnected connector.

Even with power turned on, the machine does not operate.

“Fatal error” occurred.

Indication error occurs and it is not cleared even after power is turned off once and then turned on again.

The machine does not operate for initialization.

CR unit does not operate.

CR unit operates but error is indicated.

The LED does not light up.

Table 3-22

(p.84)

Table 3-23

(p.84)

Table 3-24

(p.85)

Table 3-25

(p.85)

TROUBLESHOOTING Troubleshooting for Scanner 84

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 3-23. Carriage unit does not operate

Cause Check Point Yes/No Remedy

 Grease is applied

properly?

Faulty carriage moving mechanism

Faulty CR motor

Defective main board --- --- Replace the main board.

1. Does CR motor operate when power is turned ON with upper case of Scanner removed?

2. Does CR unit move with CR motor removed?

 Disconnect the connector

(CN18) of the CR Motor from the Main Board, and check continuity between pin 1 and pin 2 on the motor side, using a circuit tester.

Apply grease at designated

point

Check the carriage moving mechanism, replace the

relevant parts or remove and reinstall them.

No Replace the CR motor.

 Carriage operates but error indicated

Table 3-24. Carriage operates but error indicated

Cause Check Point Yes/No Remedy

Upper case of scanner is removed.

Defective main board --- --- Replace the main board

Upper case of scanner is removed.?

Yes Install the upper case.

 Picture cannot be read clearly

Table 3-26. Picture cannot be read clearly

Cause Check Point Yes/No Remedy

Is the document table (glass)

Soiled document table

Defective CIS Unit --- --- Replace the CIS Unit.

Defective main board --- --- Replace the main board

free from dirt and wiping mark?

No Clean the document table.

 LED does not light up

Table 3-25. LED does not light up

Cause Check Point Yes/No Remedy

Connector on the Main Board is disconnected

Defective CIS Unit

Defective main board --- --- Replace the main board

Connector CN19 on main board is disconnected?

Does the lamp light up when the CIS Unit is replaced?

Connect the connector

Yes

CN19 on the main board.

Yes Replace the CIS Unit.

TROUBLESHOOTING Troubleshooting for Scanner 85

EPSON Stylus Photo RX680/RX685/RX690 Revision A

3.6 Troubleshooting Duplex Unit Problems

This section provides troubleshooting information on the duplex unit. Find the problem you face in the following tables, and troubleshoot the problem referring to the descriptions given in the “Possible Cause” and “Remedy”.

 Problems and reference table

Table 3-27. Duplex Unit Problems & Reference Table

Error Message Problem Reference

Duplex unit open error

Duplex unit paper jam error A paper jam occurs in the duplex unit.

The printer cannot detect the duplex unit when duplex printing is started.

 Duplex unit open error

Table 3-28. Duplex Unit Open Error

Symptom Possible Cause Remedy

• Install the duplex unit correctly.

• Check if the duplex unit sensor is correctly connected.If not, connect it correctly.(See

Sub Board/ASF Encoder/Retard ASF Assy ” (p.120))

• Check if the duplex unit sensor is damaged.If it is, replace the sensor with a new one.(See

Assy/Sub Board/ASF Encoder/ Retard ASF Assy ” (p.120))

• Install the duplex unit correctly. (The duplex printing is resumed from the next page)

• Cancel the duplex print job.

The duplex unit open error occurs when duplex printing is started.

The duplex unit open error occurs when duplex printing is started after recovering from a duplex unit paper jam error.

1. The printer cannot detect the duplex unit due to incorrect installation of the unit.

2. Duplex unit sensor failure/poor connection

1. The printer cannot detect the duplex unit due to incorrect installation of the unit.

Table 3-28

(p.86)

Table 3-29

(p.86)

“ 4.5.7 APG Assy/

“ 4.5.7 APG

 Duplex unit paper jam error

Table 3-29. Duplex Unit Paper Jam Error

Symptom Possible Cause Remedy

1. A paper jam has occurred in the duplex unit.

2. The fed paper is smaller in size that specified by the print setting (e.g.; post card size paper is fed when A4 size is specified)

3. The printer fails to detect the duplex unit while reversing the paper for printing on its backside.

The duplex unit paper jam error occurs when duplex printing is started.

2. PE sensor failure/poor connection

Note : If the above remedies do not solve the problem, replace the duplex unit with a new one.

• Remove the duplex unit and open the cover (if necessary) to remove the paper. Then reinstall the unit. Left the printer power On during the work. (The duplex printing is resumed from the next page)

• Cancel the duplex print job, and remove the duplex unit and open the cover (if necessary) to remove the paper.

• Check if the PE sensor is correctly

connected.If not, connect it correctly.(See

“ 4.5.15 Paper Guide Rear/PE Sensor ” (p.134).)

• Check if the PE sensor is damaged.If it is, replace the Rear Paper Guide with a new one. (See

Table 3-2 (p.56)/ “ 4.5.15 Paper Guide Rear/PE Sensor ” (p.134).)

Table 3-2 (p.56)/

TROUBLESHOOTING Troubleshooting Duplex Unit Problems 86

DISASSEMBLY AND ASSEMBLY

CHAPTER

EPSON Stylus Photo RX680/RX685/RX690 Revision A

WARNING

CAUTION

4.1 Overview

This section describes procedures for disassembling the main components of the Stylus Photo RX680/RX685/RX690 .

Unless otherwise specified, disassembled units or components can be reassembled by reversing the disassembly procedure.

Procedures which, if not strictly observed, could result in personal injury are described under the heading “WARNING”.

Precautions for any disassembly or assembly procedures are described under the heading “CAUTION”.

Chips for disassembling procedures are described under the heading “CHECK POINT”.

If the assembling procedure is different from the reversed procedure of the disassembling, the procedure is described under the heading “REASSEMBLY”.

Any adjustments required after disassembling the units are described under the heading “ADJUSTMENT REQUIRED”.

When you have to remove any units or parts that are not described in this chapter, refer to the exploded diagrams in the appendix.

Read precautions described in the next section before starting.

4.1.1 Precautions

See the precautions given under the heading “WARNING” and “CAUTION” in the following column when disassembling Stylus Photo RX680/RX685/RX690 .

 Disconnect the power cable before disassembling or assembling

the printer.

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

follow the instructions in this manual.

 Wear protective goggles to protect your eyes from ink. If ink

gets in your eye, flush the eye with fresh water and see a doctor immediately.

 Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

 Use static discharge equipment such as anti-static wrist straps

when accessing internal components to protect sensitive electronic components and circuitry.

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

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

 Make sure the tip of the waste ink tube is located at correct

position when reassembling the waste ink tube, or it will cause ink leakage.

 When transporting, do not remove the ink cartridges. Pack the

printer with the cartridges installed.

 Use only recommended tools for disassembly, assembly or

adjustment of the printer. (Table 4-1 "List of Tools" (p.89))

 Be sure to tighten the screws to the specified torque.  Apply lubricants and adhesives as specified. (See Chapter 6

"Specified Lubricant" (p.175) for details.)

 Make the specified adjustments when you disassemble the

printer. (Chapter 5 contains additional information on adjustments.)

 When using compressed air products, such as air duster, for

cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

 Be careful not to scratch or damage the coating on exterior

surface of the product during disassembly and reassembly.

DISASSEMBLY AND ASSEMBLY Overview 88

EPSON Stylus Photo RX680/RX685/RX690 Revision A

4.1.2 Tools

Use only specified tools to avoid damaging the printer.

Table 4-1. List of Tools

Tool Part No.

Phillips Screwdriver (No.1) 1080530

Phillips Screwdriver (No.2) -

Flathead Screwdriver -

Precision Screwdriver #1 (flathead) -

Tweezers -

Long-nose pliers -

Acetate tape -

Note : All of the tools listed above are commercially available. EPSON provides the tools

listed with EPSON tool code.

4.1.3 Screws

The screws used in the printer are as shown in the table below. Make sure you always use the correct type and number of screws. The numbers shown in the “No.” column appear throughout this chapter to indicate the screw type more clearly.

Table 4-3. List of Screw Types

No. Description Image

1 C.B.S. 2.5x6

2 C.B.S. 3x6

3 C.B.S. 3x8

4 C.B.S. 3x10

5 C.B. 3x10

7 C.B.P. 2x8

Table 4-2. Screw Types

Abbreviation Full Name

C.B.S Phillips Bind S-Tite

C.B.P Phillips Bind P-Tite

C.P. Phillips Pan head

C.B. Phillips Bind

C.B.P.(P4) Phillips Bind P-Tite Sems R2

C.B.S.(P4) Phillips Bind S-Tite Sems R2

8 C.B.P. 2.6x8

9 C.B.P. 3x8

10 C.B.P. 2.5x10

11 C.B.P. 3x10

DISASSEMBLY AND ASSEMBLY Overview 89

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Table 4-3. List of Screw Types

No. Description Image

12 C.C. 3x4

13 C.P. 3x6

14 C.B.P.(P4) 3x8

15 C.B.S.(P4) 3x8

16 C.B.S.(P4) 3x6

4.1.4 Work Completion Checklist

Whenever the printer is serviced, use the checklist shown below to confirm all work is completed properly and the printer is ready to be returned to the user.

Make sure to always check the maintenance counter before disassembling the printer. If the counter shows that some part or component has almost reached the end of its service life, replace the part after receiving prior approval from the user.

Table 4-4. Work Completion Checklist

Classification Item Check Point Status

Self-test Is the operation normal? OK/NG

On-line Test Is the printing attempt successful? OK/NG

Printhead (print a nozzle check pattern)

Carriage

Printer Unit

On-line Test On-line Test Is the operation normal? OK/NG

Adjustment

Lubrication

Function

Mechanism

Paper Feeding Mechanism

Specified Adjustments

Specified Lubrication

Firmware Version

Is ink discharged normally from all the nozzles?

Does the carriage move smoothly? OK/NG

Is there any abnormal noise during its operation?

Is paper advanced smoothly? OK/NG

No paper jamming? OK/NG

No paper skew? OK/NG

No multiple-sheet feeding? OK/NG

No abnormal noise? OK/NG

Is the paper path free of obstructions?

Are all the adjustments correctly completed?

Has lubrication been applied at the specified points?

Is the amount of lubrication correct? OK/NG

Version: OK/NG

OK/NG

DISASSEMBLY AND ASSEMBLY Overview 90

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Rear side

Left side

Right (home) side

Front side

Left Side

EJ Roller Gear

PF Roller Gear

Unlocked

Locked

Carriage Lock

Table 4-4. Work Completion Checklist

Classification Item Check Point Status

Packing

Others

Ink Cartridge

Waste Ink Pads

Carriage position

Attachments, Accessories

Are the ink cartridges installed correctly?

Is the remaining capacity of the waste ink pads enough?

Is the carriage located at the position where the Printhead is covered with the cap?

Have all the relevant items been included in/returned to the package?

OK/NG

4.1.5 Required Preparation before Disassembly

Make sure to carry out the following operations before disassembling the printer.



When the Main Board needs to be replaced, make a backup copy of EEPROM data.

 Unlock the carriage lock and move the CR Unit to other than its home position.

• How to Unlock the Carriage (p.91)

4.1.6 Orientation Definition

Orientation descriptions used in the disassembly/reassembly procedures are as follows.

4.1.7 How to Unlock the Carriage

 Unlocking the carriage and moving the Carriage Assy to other than its home

position is required for disassembly of some parts or components. Carry out any of the following operations to unlock the carriage.

CAUTION

 Power the printer and turn it off forcedly by disconnecting the power cable

 Turn the EJ Roller gear on the left side of the printer in the direction of the

Be extremely careful not to damage the EJ Roller gear. Extra care must be taken to avoid injury from sharp metal edges

when the CR Assy is unlocked and moved away from the home position.

arrow until the carriage is unlocked. (Removing the Housing Middle is required.)

Table 4-5. Orientation Definition

DISASSEMBLY AND ASSEMBLY Overview 91

Table 4-6. How to Unlock the Carriage

EPSON Stylus Photo RX680/RX685/RX690 Revision A

START

Paper Support Assy (p.94)

Panel Unit/Upper Housing (p.96)

Scanner Unit (p.100)

Main Board Assy (p.106)

Hinge Assy (p.102)

Rear Cover/Automatic Duplex Unit

(p.94)

Middle Housing (p.110)

Power Supply Unit (p.113)

Printer Mechanism

(following page)

Stacker Assy (p.114) CR Scale (p.117)

Printhead (p.118)

CR Motor Unit (p.105)

Disassembling the Panel Unit (p.108)

Panel Unit/Upper Housing (p.96)

Disassembling the Scanner Unit

(p.103)

Document Cover/ASF Cover (p.103)

Scanner Housing (p.103)

CIS Unit (p.104)

Hinge Assy (p.102)

Disassembling the Main Board Assy

(p.107)

Front ASF Cover Assy (p.96)

Rear Cover/Automatic Duplex Unit

(p.94)

Cassette Assy (p.95)

4.1.8 Disassembly Flowchart

The flowchart below shows step-by-step disassembly procedures. When disassembling each unit, refer to the page number shown in the figure.

Flowchart 4-1. Stylus Photo RX680/RX685/RX690 Disassembly Flowchart (1)

DISASSEMBLY AND ASSEMBLY Overview 92

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CHECK

POINT

 The parts/components indicated with have further

procedures.

 You need to remove the parts/units shown in dashed line box if

they exist on the way to the target part/unit.

 The color and shape of the printer illustrated in this manual

may differ from the final product.

Printer Mechanism (p.114)

APG Assy/Sub Board/ASF Encoder/

Retard ASF Assy (p.120)

CR Motor (p.129)

Carriage Assy (p.130)

Rear ASF Assy/Change Lever (p.135)

Paper Guide Upper L/R (p.133)

Paper Guide Rear/PE Sensor (p.134)

Ink System (p.142)

Rear Frame Assy (p.144)

PF Motor (p.128)

EJ Frame Assy/CDR Guide Assy

(p.124)

Paper Guide Front & EJ Roller Assy/

PF Roller Assy (p.145)

Paper Guide Lower Assy (p.150)

Paper Guide Bank Assy (p.149)

Ink System (p.142)

Rear ASF Assy/Change Lever (p.135)

ASF Motor Assy (p.143)

ASF Sub Motor/RH Sensor/RP Sensor

(p.137)

LD roller/Retard Roller (p.139)

PF Motor (p.128)

EJ Frame Assy/CDR Guide Assy

(p.124)

PF Encoder (p.127)

Waste Ink Pads/Foot (p.123)

Flowchart 4-2. Stylus Photo RX680/RX685/RX690 Disassembly Flowchart (2)

DISASSEMBLY AND ASSEMBLY Overview 93

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Bushing

Paper Support Assy

Rear ASF Assy

Tab

Press

Tab

Rear Cover

Press

Button Button

Automatic Duplex Unit

Press

4.2 Removing Exterior Parts/Components

4.2.1 Paper Support Assy

 Parts/Components need to be removed in advance: Nothing

 Removal procedure

1. Open the Paper Support Assy.

2. Release the left Bushing from the shaft of the Rear ASF Assy by pushing the

part indicated with , then release the right bearing and remove the Paper Support Assy.

Figure 4-1. Removing the Paper Support Assy

4.2.2 Rear Cover/Automatic Duplex Unit

 Parts/Components need to be removed in advance: Nothing

 Removal procedure

 Removing the Rear Cover

1. Unlock the Rear Cover by simultaneously pressing the tabs on both sides inward, and remove the Rear Cover.

Figure 4-2. Removing the Rear Cover

 Removing the Automatic Duplex Unit

1. Unlock the Automatic Duplex Unit by pressing the buttons on both sides, and remove the Automatic Duplex Unit.

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 94

Figure 4-3. Removing the Automatic Duplex Unit

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Handle

Cassette Assy

Front Cassette Cover

Cassette Cover

Cassette Assy

: Hook

Front Edge Guide

Left Edge Guide

Cassette Cork

: Reference position

: Frame

4.2.3 Cassette Assy

 Parts/Components need to be removed in advance: Nothing

 Removal procedure

1. Hold the handle and pull it towards you, and remove the Cassette Assy.

Figure 4-4. Removing the Cassette Assy

2. Remove the Cassette Cover.

3. Insert a flathead screwdriver into the grooves and release the hooks that

secure the Front Cassette Cover.

4. Release the four tabs while sliding the Front Cassette Cover upward, and remove the Cassette Cover Front.

5. Release the hook (1) from the bottom of the Cassette Assy and remove the Left Edge Guide.

6. Release the hook (2) from the bottom of the Cassette Assy and remove the Front Edge Guide.

7. Remove the two Cassette Corks.

Figure 4-6. Disassembling the Cassette Assy

REASSEMBLY

Install the Cassette Corks onto the frames, aligning its corners with the reference positions.

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 95

Figure 4-5. Disassembling the Cassette Assy

Figure 4-7. Installing the Cassette Corks

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Lever

Front ASF Cover Assy

Guide pins (x2)

CAUTION

Backside

Decoration Panel L

LED Lens (A) LED Lens (B)

Decoration Panel R

Scanner Unit

Panel Unit

Decoration Panel L

Decoration Panel R

4.2.4 Front ASF Cover Assy

 Parts/Components need to be removed in advance

Rear Cover/Automatic Duplex Unit

 Removal procedure

1. Release the lock by pinching the levers and open the Front ASF Cover Assy.

Figure 4-8. Removing the Front ASF Cover Assy (1)

2. Release the guide pins of the Front ASF Cover Assy (two each on both sides) from the grooves and holes of the frames in the order given in the figure, and remove the Front ASF Cover Assy.

4.2.5 Panel Unit/Upper Housing

 Parts/Components need to be removed in advance: Nothing

 Removal procedure

 When removing the Panel Unit, make sure not to scratch the

paintwork.

 Since the LED Lens (A) on the Decoration Panel L easily comes

off, make sure not to lose it when at work.

Figure 4-10. Cautions of removing the Panel Unit

1. Open the Scanner Unit.

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 96

Figure 4-9. Removing the Front ASF Cover Assy (2)

Figure 4-11. Removing the Upper Housing and Panel Unit (1)

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Decoration

Panel L

Panel Unit

Decoration

Panel R

Front Left

V-mark

Cable Cover

CAUTION

Panel Unit

Upper Housing

2. Release the four hooks and two tabs by inserting a plastic tweezer or the like into the part marked with (between the Panel Unit and the Decoration Panel L), and remove the Decoration Panel L lifting the panel upward.

3. Remove the Decoration Panel R in the same manner.

Figure 4-12. Removing the Decoration Panel L/R

4. Release the two hooks on the back of the Cable Cover by pulling up the two V-marked parts, and remove the Cable Cover while releasing the tabs on both sides.

Do not remove the Panel Unit and Upper Housing too fast since the LCD FFC, the Panel FFC and the Cover Open Sensor cable are connected to them.

5. Remove the five screws, and release the Panel Unit and the Upper Housing.

• Screw : (x4) C.B.P. M3x10 (tightening torque: 5-7 kgfcm)

• Screw : (x1) C.B.S. M3x8 (tightening torque: 7-9 kgfcm)

(The numbers shown in the figure indicate the order of tightening the screws.)

Figure 4-14. Removing the Upper Housing and Panel Unit (2)

Figure 4-13. Removing the Cable Cover

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 97

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CAUTION

CN3

CN4

CN14

LCD FFC

Panel FFC

Cover Open Sensor Cable

Ferrite Core

Panel Unit

Upper Housing

Do not disconnect the LCD FFC from the LCD Assy side. If it is disconnected from the LCD Assy, the disassembly of the assy is required, but the quality after the reassembly work cannot be guaranteed. In this case, make sure to replace the LCD Assy.

6. Peel off the Panel FFC and the LCD FFC from the top of the Main Board Assy., and disconnect them from connectors CN4 and CN3.

7. Remove the LCD FFC from the ferrite core.

8. Disconnect the Cover Open Sensor cable from connector CN14 of the Main

Board, and remove the Panel Unit and the Upper Housing.

9. Separate the Panel Unit and the Upper Housing as follows:

(1) Remove the two screws.

•Screw : C.B.P. M3x10 (tightening torque: 5-7 kgfcm)

(The numbers shown in the figure indicate the order of tightening the screws.)

(2) Release the two hooks on both sides by pulling the Panel Unit toward

you.

(3) Release the two hooks by sliding the Panel Unit upward along the

slope.

Figure 4-16. Separating the Panel Unit and Upper Housing

Figure 4-15. Removing the Upper Housing and Panel Unit (3)

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 98

EPSON Stylus Photo RX680/RX685/RX690 Revision A

Hook (1)

Hook (2)

Cover Open Sensor (Bottom)

Connector Cable

Upper Housing (Bottom)

90 degrees

Upper Housing (Top)

Connector Cable

Cover Open Sensor

REASSEMBLY

(3) Press to secure

Hook

Cable Cover

10. Release the hook (1) on the bottom of the Upper Housing.

11. Release the hook (2) by rotating it by 90 degrees, and remove the Cover Open

Sensor while pulling off the connector cable through the hole of the housing.

Figure 4-17. Removing the Cover Open Sensor (1)

12. Remove the connector cable from the Cover Open Sensor.

 When installing the Cable Cover, check that the connector

cables are correctly routed before installing it, and make sure any cables are caught in between.

• Routing the Cables of the Scanner Unit (1) (p.101)

 Install the Cable Cover as follows.

1. Attach the tab on the rear.

2. Attach the tabs on the front by bending the Cable Cover slightly.

3. Match the two hooks with their positioning holes, and secure the Cable Cover by pressing the top of the cover.

Figure 4-19. Installing the Cable Cover

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 99

Figure 4-18. Removing the Cover Open Sensor (2)

 Tighten the screws in the order given in Figure 4-14.

EPSON Stylus Photo RX680/RX685/RX690 Revision A

CN18

CN19

GND Cable

CN20

FFC Holder

Hook Double-sided tape

Ferrite Core

Groove A

Groove B

Main Board

REASSEMBLY

Scanner Unit

Rib

Hole

Hinge Assy’s left side

Scanner Unit

4.2.6 Scanner Unit

 Parts/Components need to be removed in advance

Paper Support Assy/Panel Unit/Upper Housing

 Removal procedure

1. Remove the screw and remove the GND Cable.

• Screw : C.B.S. M3x8 (tightening torque: 7-9 kgfcm)

2. Disconnect the connector cables from connectors CN18, CN20 on the Main Board, and release the cables from the two grooves A/B on the Middle Housing.

3. Release the four hooks, and remove the FFC Holder.

4. Disconnect the FFC from connector CN19.

5. Peel off the double-sided tape, and release the FFC together with the FFC

Holder and the two ferrite cores from the groove A on the Middle Housing.

6. Remove the two screws and remove the Scanner Unit by pulling it out along the ribs of the Hinge Assys as shown in Figure 4-22.

• Screw : C.B.P. M3x10 (tightening torque: 5-7 kgfcm)

(The numbers shown in the figure indicate the order of tightening the screws.)

Figure 4-21. Removing the Scanner Unit

 When installing the Scanner Unit, match the positioning holes

with their positioning ribs on each Hinge Assy.

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 100

Figure 4-20. Removing the Cables

Figure 4-22. Installing the Scanner Unit

 Tighten the screws in the order given in Figure 4-21.

EPSON Stylus Photo RX680/RX685/RX690 Revision A

REASSEMBLY

CR Encoder cable

CR Motor Cable

GND Cable

Groove A

Groove B

Route CR Encoder cable.

Route FFC inside

the rib.

Route FFC into slit.

Route CR

Encoder cable to

hold down FFC.

FFC

REASSEMBLY

: Acetate tape : Hook

Ferrite core and

acetate tape

Main Board

CR Motor Cable

FFC

Route the connector cables as follows.

1. Route the FFC through the groove A.

2. Route the CR Encorder cable

3. Route the CR Motor cable

4. Route the GND cable

through the groove

5. Secure the FFC with the two hooks.

6. Secure the CR Motor cable with the four hooks.

7. Secure the ferrite core of the CR Motor cable with acetate tape to the place as shown in the figure below.

Figure 4-24. Routing the Cables of the Scanner Unit (2)

DISASSEMBLY AND ASSEMBLY Removing Exterior Parts/Components 101

Figure 4-23. Routing the Cables of the Scanner Unit (1)

Epson Stylus Photo RX680, Stylus Photo RX685, Stylus Photo RX690 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRODUCT DESCRIPTION

1.1 Features

1.2 Printing Specifications

1.2.1 Basic Specifications

1.2.2 Ink Cartridge

1.2.3 Print Mode

1.2.4 Supported Paper

1.2.5 Printing Area

1.3 Scanner Specifications

1.4 General Specifications

1.4.1 Electrical Specifications

1.4.2 Safety Approvals (Safety standards/EMI)

1.4.3 Acoustic Noise

1.4.4 Durability

1.4.5 Environmental Conditions

1.5 Interface

1.5.1 USB Interfaces

1.5.2 Memory Card Slots

1.6 Control Panel

1.6.1 Operation Buttons & LED

1.7 Specifications of Each Function

1.7.1 Stand-alone Copy Function

1.7.2 Memory Card Direct Print Function

1.7.3 Backup Function

1.7.5 Speciality Print Functions

1.7.6 Setup Mode

OPERATING PRINCIPLES

2.1 Overview

2.1.2 Motors and Sensors

2.1.1 Printer Mechanism

2.2 Printer Mechanism Operating Principles

2.2.1 Printhead

2.2.2 Carriage Mechanism

2.2.3 APG Mechanism

2.2.4 Paper Loading/Feeding Mechanism

2.2.5 CD-R Mechanism

2.2.6 Ink System

2.2.7 Scanner Unit

2.3 Electrical Circuits Operating Principles

2.3.1 Features

2.3.2 Circuit Board Components

2.3.3 Main Board Circuit Block Diagram

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

TROUBLESHOOTING

3.1 Overview

3.1.1 Troubleshooting on Motors and Sensors

3.2 Error/Warning Indications

3.2.1 List of Error Indications

3.3 Troubleshooting

3.3.1 Troubleshooting with Error Indications

3.4 Troubleshooting by Symptom (no error indications)

3.4.1 Troubleshooting Printer Mechanism Problems

3.4.2 Troubleshooting Electrical Problems

3.4.3 Troubleshooting Ink Supply Problems

3.4.4 Troubleshooting I/F-related Problems

3.5 Troubleshooting for Scanner

3.6 Troubleshooting Duplex Unit Problems

DISASSEMBLY AND ASSEMBLY

4.1 Overview

4.1.1 Precautions

4.1.2 Tools

4.1.3 Screws

4.1.4 Work Completion Checklist

4.1.5 Required Preparation before Disassembly

4.1.6 Orientation Definition

4.1.7 How to Unlock the Carriage

4.1.8 Disassembly Flowchart

4.2 Removing Exterior Parts/Components

4.2.1 Paper Support Assy

4.2.2 Rear Cover/Automatic Duplex Unit

4.2.3 Cassette Assy

4.2.4 Front ASF Cover Assy

4.2.5 Panel Unit/Upper Housing

4.2.6 Scanner Unit