Epson Stylus NX100, Stylus NX105, Stylus SX100, Stylus SX105, Stylus TX100 Service Manual

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SERVICE MANUAL

Color Inkjet Printer

EPSON Stylus NX100/NX105/SX100/

SX105/TX100/TX101/TX102/ TX103/TX105/TX106/TX109/ ME 300

Confidential

SEMF08-002

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Notice:

photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

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

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

informed of them.

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

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Imaging Products CS, PL & Environmental Management

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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.

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About This Manual

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

C H E C K

P O I N T

W A R N I N G

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:

• Exploded Diagram

• Parts List

Symbols Used in this Manual

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

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.

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Revision Status

Revision Date of Issue Description

A June 27, 2008 First Release

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Contents

Chapter 1 PRODUCT DESCRIPTION

1.1 Features................................................................................................................. 9

1.2 Printing Specifications........................................................................................ 10

1.2.1 Basic Specifications................................................................................. 10

1.2.2 Ink Cartridge............................................................................................ 10

1.2.3 Print Mode............................................................................................... 11

1.2.4 Supported Paper....................................................................................... 12

1.2.5 Printing Area ........................................................................................... 14

1.3 Scanner Specifications........................................................................................ 14

1.3.1 Scanning Range....................................................................................... 14

1.4 General Specifications........................................................................................ 15

1.4.1 Electrical Specifications .......................................................................... 15

1.4.2 Environmental Conditions....................................................................... 15

1.4.3 Durability................................................................................................. 16

1.4.4 Acoustic Noise......................................................................................... 16

1.4.5 Safety Approvals (Safety standards/EMI)............................................... 16

1.5 Interface.............................................................................................................. 16

1.5.1 USB Interface .......................................................................................... 16

1.6 Control Panel ...................................................................................................... 17

1.6.1 Operation Buttons & LEDs ..................................................................... 17

1.6.2 Control Panel Functions .......................................................................... 18

1.7 Stand-alone Copy Function ................................................................................ 21

1.7.1 Supported Paper and Copy Mode............................................................ 21

1.7.2 Setting for Stand-alone Copy .................................................................. 21

1.7.3 Copy Speed.............................................................................................. 22

1.7.4 Multiple Copying..................................................................................... 22

Chapter 2 OPERATING PRINCIPLES

2.1 Overview ............................................................................................................ 24

2.1.1 Printer Mechanism .................................................................................. 24

2.1.2 Motors & Sensors.................................................................................... 25

2.1.3 Printhead.................................................................................................. 26

Chapter 3 TROUBLESHOOTING

3.1 Overview ............................................................................................................ 28

3.1.1 Specified Tools........................................................................................ 28

3.1.2 Preliminary Checks ................................................................................. 28

3.2 Error Indications and Fault Occurrence Causes................................................. 29

3.2.1 Troubleshooting by Error Message ......................................................... 30

3.2.2 Superficial Phenomenon-Based Troubleshooting ................................... 46

3.2.3 Motor and Sensor Troubleshooting......................................................... 53

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Chapter 4 DISASSEMBLY/ASSEMBLY

4.1 Overview ............................................................................................................ 55

4.1.1 Precautions .............................................................................................. 55

4.1.2 Tools........................................................................................................ 55

4.1.3 Work Completion Check......................................................................... 56

4.2 Disassembly Procedures..................................................................................... 57

4.3 Removing the Housing ....................................................................................... 58

4.3.1 Paper Support Tray.................................................................................. 58

4.3.2 Stacker Assy ............................................................................................ 58

4.3.3 Document Cover/ASF Cover .................................................................. 59

4.3.4 Scanner Stand /Cover Wire ..................................................................... 60

4.3.5 Scanner Unit ............................................................................................ 62

4.3.6 Middle Housing....................................................................................... 63

4.4 Removing the Circuit Boards ............................................................................. 64

4.4.1 Panel Unit ................................................................................................ 64

4.4.2 Main Board.............................................................................................. 65

4.4.3 Power Supply Unit .................................................................................. 66

4.5 Disassembling the Printer Mechanism ............................................................... 68

4.5.1 Printhead.................................................................................................. 68

4.5.2 CR Scale .................................................................................................. 71

4.5.3 Hopper ..................................................................................................... 72

4.5.4 PF Encoder/ PF Scale .............................................................................. 73

4.5.5 EJ Roller/ EJ Frame Assy........................................................................ 73

4.5.6 CR Motor/ Driven Pulley ........................................................................ 75

4.5.7 Ink System............................................................................................... 77

4.5.8 PF Motor.................................................................................................. 82

4.5.9 Main Frame ............................................................................................. 84

4.5.10 Upper Paper Guide ................................................................................ 86

4.5.11 CR Unit.................................................................................................. 87

4.5.12 PF Roller................................................................................................ 90

4.5.13 LD Roller/ ASF Unit ............................................................................. 91

4.5.14 Waste Ink Pads ...................................................................................... 93

4.6 Disassembling the Scanner Unit......................................................................... 96

4.6.1 Upper Scanner Housing........................................................................... 96

4.6.2 Scanner Carriage Unit ............................................................................. 97

4.6.3 Scanner Motor Unit ................................................................................. 99

Chapter 5 ADJUSTMENT

5.1 Adjustment Items and Overview...................................................................... 101

5.1.1 Servicing Adjustment Item List (TBD)................................................. 101

5.1.2 Required Adjustments (TBD) ............................................................... 103

5.2 Using the Adjustment Program (TBD) ............................................................ 105

5.2.1 TOP Margin Adjustment ....................................................................... 105

5.2.2 First Dot Position Adjustment............................................................... 105

5.2.3 Head Angular Adjustment..................................................................... 106

5.2.4 Bi-D Adjustment ................................................................................... 106

5.2.5 PF Adjustment....................................................................................... 107

Chapter 6 MAINTENANCE

6.1 Overview .......................................................................................................... 109

6.1.1 Cleaning................................................................................................. 109

6.1.2 Service Maintenance ............................................................................. 109

6.1.3 Lubrication ............................................................................................ 110

Chapter 7 APPENDIX

7.1 Exploded Diagram / Parts List ......................................................................... 113

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PRODUCT DESCRIPTION

CHAPTER

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Paper Support & Stacker are Closed

Paper Support & Stacker are Opened

1.1 Features

Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/ TX105/TX106/TX109/ME 300 are entry class color ink-jet printers with the scanner function.

 Features

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

 D2 Chips printhead

(Black: 90 nozzles x 1, Color: 29 nozzles x 3 per color)

 Borderless printing with pigment ink

 Four independent ink cartridges is installed.

 Dimensions

 Dimensions*1:434 mm (W) x 327 mm (D) x 185 mm (H)

 Weight*

Note *1 : Paper support and stacker are closed. Rubber feet are included.

*2 : Excluding the weight of ink cartridges and power cable.

: 4.45 kg

Figure 1-1. External View

PRODUCT DESCRIPTION Features 9

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

C A U T I O N

1.2 Printing Specifications

1.2.1 Basic Specifications

Table 1-1. Printer Specifications

Item Specification

Print method On-demand ink jet

Nozzle configuration Black: 90 nozzles x 1

Color: 29 nozzles x 3 (Cyan, Magenta, Yellow)

Print direction Bi-directional minimum distance printing, Unidirectional printing

Maximum print resolution

Print resolution Horizontal x Vertical (dpi)

Control code

Input buffer size 32 Kbytes

Paper feed method Friction feed, using the ASF (Auto Sheet Feeder)

Paper path Top feed, front out

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

PF interval T.B.D.

5760 x 1440 (dpi) MGA

• 360 x 120 • 720 x 720

• 360 x 360 • 1440 x 720

• 360 x 720 • MGA 5760 x 1440

• ESC/P Raster command

• EPSON Remote command

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 Latin 1 Latin 2

T0691

T0731N

Black

Cyan

Magenta

Yellow

Note *1: ETT/EKL(WS)/EKL(Other)/EKL(LFR)/EHK/ESP/ESP(Phil)/EAL

T0881

T0692 T0882

T0693 T0883

T0694 T0884

*2 : ESP(India)/ESP(Inter)

T0901N

T0732N T0732N

T0733N T0733N

T0734N T0734N

T1161 T1171

 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

 Dimension

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

Euro

(West)

T0711 T0891

T0712 T0892

T0713 T0893

T0714 T0894

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

-20 oC to 40 oC

(-4oF to 104oF)

CISMEA

T0921N

T0922N

T0923N

T0924N

Asia 1*1Asia 2*2ECC

T0731N

T1091

T1092

T1093

T1094

T0911N

T0732N T0912N

T0733N T0913N

T0734N T0914N

1 month max. at 40 oC (104oF)

T0911N

T0732N T0912N

T0733N T0913N

T0734N T0914N



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 10

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

1.2.3 Print Mode

Table 1-4. Print Mode (Color)

Media Print Mode

Plain paper

Photo Quality Inkjet Paper

Matte Paper Heavy-weight

Premium Glossy Photo Paper

Glossy Photo Paper

Premium Semigloss Photo Paper

Ultra Glossy Photo Paper

Envelope

Note * : cps = character per second

Resolution

(H x V dpi)

Fast Economy

Economy

Normal 360x360

Photo 720x720

Best Photo 1440x720

Photo 720x720

Best Photo 1440x720

Super Fine 360x720

Photo 720x720

Best Photo 1440x720

Photo RPM

Best Photo 1440x720

Photo RPM

Normal 360x360

360x120

Fine 360x720

5760x1440

MGA

5760x1440

MGA

Fine 360x720

Dot Size (cps*)

Eco

(360cps)

VSD1

(165cps)

VSD2’

(240cps)

VSD3’

(240cps)

VSD2

(240cps)

VSD3

(240cps)

VSD2

(240cps)

VSD3

(240cps)

VSD2

(240cps)

VSD2

(240cps)

VSD3

(240cps)

VSD3

(240cps)

VSD3

(240cps)

VSD3

(240cps)

VSD1

(165cps)

VSD2’

(240cps)

Table 1-5. Print Mode (Monochrome)

Media Print Mode

Plain paper

Photo Quality Inkjet Paper

Matte Paper Heavy-weight

Envelope

Note * : cps = character per second

Resolution

(H x V dpi)

Fast Economy

Economy

Normal 360x360

Photo 1440x720

Photo 720x720

Best Photo 1440x720

Photo 720x720

Best Photo 1440x720

Normal 360x360

360x120

Fine 720x720

Dot Size (cps*)

Eco

(360cps)

VSD1

(165cps)

VSD2’

(240cps)

VSD3’

(240cps)

VSD2

(240cps)

VSD3

(240cps)

VSD2

(240cps)

VSD3

(240cps)

VSD1

(165cps)

VSD2’

(240cps)

PRODUCT DESCRIPTION Printing Specifications 11

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 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 1-6. Supported Paper

Paper Name Paper Size

Thickness

(mm)

Legal 215.9 x 355.6 mm (8.5”x14”)

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

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

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

Plain paper

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

0.08-0.11

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

A6 105 x 148 mm (4.2”x5.8”) Y - Y - Y -

User Defined

89 x 127- 329 x 1117.6 mm (3.56”x 5.08” - 13.16”x44.7”)

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

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

Bright White Inkjet Paper (Euro, Asia) A4 210 x 297 mm (8.3”x11.7”) 0.13

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

Ultra Premium Glossy Photo Paper (EAI) Ultra Glossy Photo Paper (Euro, Asia)

8” x 10” 203.2 x 254 mm Y Y Y - Y -

5” x 7” 127 x 178 mm Y Y Y Y Y Y

0.30

4” x 6” 101.6 x 152.4 mm Y Y Y Y Y Y

3.5” x 5” 89 x 127 mm Y Y Y Y Y Y

Letter 215.9 x 279.4 mm (8.5”x11”)

Premium Photo Paper Glossy (EAI)

Premium Glossy Photo Paper (Euro, Asia)

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

0.27

8” x 10” 203.2 x 254 mm Y Y Y - Y -

Weight

64-90 g/m

(17-24 lb.)

80 g/m

(21 lb.)

90 g/m

(24 lb.)

92.5 g/m (25 lb.)

290 g/m

(77 lb.)

255 g/m

(68 lb.)

EAI EUR Asia

Y - Y - Y -

- - Y - Y -

Y - - - - -

- - Y - Y -

Y Y Y - Y -

PRODUCT DESCRIPTION Printing Specifications 12

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Note *1 : “Y” in the “P” column stands for “the paper type/size is Supported”.

*2 : “Y” in the “B” column stands for “Borderless printing is available”.

C A U T I O N

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

Table 1-6. Supported Paper

Paper Name Paper Size

Thickness

(mm)

5” x 7” 127 x 178 mm

Photo Paper Glossy (EAI)

Glossy Photo Paper (Euro, Asia)

16:9 wide 101.6 x 180.6 mm Y Y Y Y Y Y

101.6 x 152.4 mm Y Y Y Y Y Y

0.27

4" x 6

3.5” x 5” 89 x 127 mm Y Y Y Y Y Y

Letter 215.9 x 279.4 mm (8.5”x11”)

Photo Paper Glossy (EAI)

Glossy Photo Paper (Euro, Asia)

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

5” x 7” 127 x 178 mm - - Y Y Y Y

0.25

4” x 6” 101.6 x 152.4 mm Y Y Y Y Y Y

Letter 215.9 x 279.4 mm (8.5”x11”) Premium Photo Paper Semi-Gloss (EAI) Premium Semigloss Photo Paper (Euro, Asia)

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

0.27

4” x 6” 101.6 x 152.4 mm Y Y Y Y Y Y

A4 210 x 297 mm (8.3”x11.7”)

Photo Paper

5” x 7” 127 x 178 mm - - Y Y - -

0.24

4” x 6” 101.6 x 152.4 mm - - Y Y Y Y

Letter 215.9 x 279.4 mm (8.5”x11”) Premium Presentation Paper Matte (EAI) Matte Paper-Heavyweight (Euro, Asia)

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

0.23

8” x 10” 203.2 x 254 mm Y Y - - - -

Photo Quality Inkjet Paper A4 210 x 297 mm (8.3”x11.7”) 0.13

#10 104.8 x 241.3 mm (4.125”x9.5”)

Envelopes

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

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

Weight

255 g/m

(68 lb.)

258 g/m

(68 lb.)

250 g/m

(66 lb.)

190 g/m

(51 lb.)

167 g/m

(44 lb.)

102 g/m

(27 lb.)

75-100 g/m

(20-27 lb.)

EAI EUR Asia

Y Y Y Y Y Y

Y Y Y - Y -

- - Y Y Y Y

Y Y Y - Y -

- - Y - Y -

Y - Y - Y -

PRODUCT DESCRIPTION Printing Specifications 13

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Print Area

LM RM

Cut Sheet (Standard)

Cut Sheet (Borderless)

Paper SIze

Print Area

Envelope

Paper Size

Paper Feed Direction

OTM

OLM

Scanning starting position

Scan area

Scan bed

Original

(facedown)

Home position

1.2.5 Printing Area

The printing area for this printer is shown below.

Table 1-7. 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 3 mm 3 mm 3 mm 3 mm

Envelope 5 mm 5 mm 3 mm 20 mm

A4 / Letter to 5” x 7”

4” x 6” / 3.5” x 5” 2.82 mm* 3.60 mm*

Left Right Top Bottom

2.54 mm* 2.54 mm*

Margin

2.96 mm* 4.02 mm*

1.3 Scanner Specifications

Table 1-8. Basic Specifications

Item Specification

Scanner type Flatbed, color

Scanning method Moving carriage, stationary document

Home position The front right corner

Photoelectric device CIS

Light source LED

Maximum document sizes A4 or US letter

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

Maximum resolution

Maximum effective pixels 5,100 x 14,040 pixels (CIS optical resolution x Microstep drive)

Pixel depth

Main scan: 600 dpi Sub scan: 1200 dpi

Input: 16 bit each pixel Output: 1, 8 bit

1.3.1 Scanning Range

Table 1-9. Scanning Range

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

297 mm 216 mm 1.5 mm ± 1mm 1.5 mm ± 1mm

PRODUCT DESCRIPTION Scanner Specifications 14

Figure 1-2. Printing Area

Figure 1-3. Scanning Range

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

C A U T I O N

10/50

27/80

35/9520/68

Temperature (°C/°F)

Humidity (%)

30/86 40/104

1.4 General Specifications

1.4.1 Electrical Specifications

Table 1-10. 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 (Max. rated current) 0.6 A (TBD A) 0.4 A (TBD A)

Rated frequency 50 to 60 Hz

Input frequency range 49.5 to 60.5 Hz

Insulation resistance

Energy conservation International Energy Star Program compliant

Standby (Max, when

Power off)

Power consumption

Sleep (Max) 3.8 W 3.8 W

Copying (Normal BK

mode, Typ.)

Copying (Draft BK

mode, Max.)

1500 VAC for one minute

(between AC lines and chassis)

Higher than 10 M Ω at 500 VDC

(between AC lines and chassis)

1 W 1 W

11.7 W 11.5 W

22.1 W 22.4 W

1.4.2 Environmental Conditions

Table 1-11. Environmental Conditions

°F)

Humidity

20 to 80%

Condition Temperature

Operating

Storage

(in carton box)

10 to 35°C

(50 to 95

-20 to 60°C*

(-4°F to 140°F)

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

range in

Fig.1-4.

*2 : No condensation

*3 : 1 mouth at 40°C

120 hours at 60°C

5 to 85%

*1,2

Shock Vibration

(1 msec or less)

(2 msec or less)

0.15G,

to 55Hz

1.5G,

to 55Hz

Note 1: If the printer or scanner is not operated for more than three minutes, the printer goes

into the power save mode within two minutes.

PRODUCT DESCRIPTION General Specifications 15

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.

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1.4.3 Durability

 Total print life: 10,000 pages (A4, 3.5% duty),

or three years which ever comes first

 Printhead: Five billions shots (per nozzle) or five years which ever comes

first

 Scanner carriage: 36,000 cycles of carriage movement

1.4.4 Acoustic Noise

 T.B.D. dB

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

 T.B.D. dB (when scanning, default setting)

1.4.5 Safety Approvals (Safety standards/EMI)

USA UL60950-1

FCC Part15 Subpart B Class B

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

CAN/CSA-CEI/IEC CISPR 22 Mexico NOM-019-SCFI-1998 Taiwan IEC60950-1 :2001

CNS13438 Class B

CNS14336 Euro EN60950-1

EN55022 Class B

EN61000-3-2, EN61000-3-3

EN55024

IEC60950-1 :2001 (CE Mark(LCV)) Germany GS Mark Russia GOST-R (IEC60950-1, CISPR 22)

GOST-R 51318.22-99

GOST-R 51318.24-99

GOST-R 51317.3.2-99

GOST-R 51317.3.3-99

GOST 26329-84 Singapore IEC60950-1 Korea K60950-1

KN22 Class B

KN61000-4-2/-3/-4/-5/-6/-11

MIC MARK China GB4943 :2001

GB9254, GB17625.1 Hong Kong IEC60950-1 Argentina IEC60950-1 Australia AS/NZS CISPR22 :2002

1.5 Interface

This printer has USB interface of the following specifications.

1.5.1 USB Interface

The table below describes the specifications of the USB interface to connect a PC.

Table 1-12. USB Interface Specifications

Item USB Device port

Compatible standards • Based on Universal Serial Bus Specifications Revision 2.0

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

Transfer rate 12 Mbps (Full Speed)

Data format

Compatible connector

Max. cable length

Table 1-13. Device ID

When IEEE 1284.4 is Enabled When IEEE 1284.4 is Disabled

@EJL[SP]ID[CR][LF]

MFG:EPSON; CMD:ESCPL2,BDC,D4,D4PX; MDL:Model Name; CLS:PRINTER; DES:EPSON[SP]Model Name; [FF]

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

Table 1-14. Model Names Indicated in the Device ID

Model Name Country (Product specification)

Stylus NX100 EAI (STD/Mass/Canada)

Stylus SX100 Euro, Euro Premium

Stylus TX100

Stylus TX101 ESP (Inter), ESP (India)

Stylus TX105 EAI (Latin 120V Brazil / Latin 120V Colombia / Latin 220V)

Stylus TX106 CISMEA, CISMEA Premium

ME 300 ECC / ECC (Office)

EAL, ESP, ESP(Phil), EHK, ETT, EKL (WS/Others/LFR)

EAI (Latin 120V Mexico)

NRZI

USB Series A

2 [m] or less

@EJL[SP]ID[CR][LF]

MFG:EPSON; CMD:ESCPL2,BDC; MDL:Model Name; CLS:PRINTER; DES:EPSON[SP]Model Name; [FF]

PRODUCT DESCRIPTION Interface 16

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Power

Power LED

Stop

Paper LED

Ink LED

Start Photo

Start B&W

Start Color

1.6 Control Panel

1.6.1 Operation Buttons & LEDs

The following buttons and LEDs are equipped on the control panel.

Table 1-15. Buttons & LEDs

Button/LED Function

Power Turns the power ON/OFF.

Stops printing immediately and ejects the paper.

Cancels the job which is printing/copying at the same time.

Adjusts the image size to the paper and starts color photo copying.

• Flashes at power ON/OFF.

• Flashes during each sequence is in progress.

• Flashes when a fatal error occurs or maintenance is required.

• Lights in Ready status.

Button

LED

Stop

Start Photo

Start B&W Starts B&W copying.

Start Color Starts color copying.

Power LED

Paper LED Lights or flashes when a paper-related error occurs.

Ink LED Lights or flashes when a ink-related error occurs.

Figure 1-5. Control Panel (EAI version as a sample)

PRODUCT DESCRIPTION Control Panel 17

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1.6.2 Control Panel Functions

Table 1-16. Buttons Functions

Button Printer Status Functions

Power Power Off Turns the power OFF.

Power On

Stop Printing / Copying Stops printing immediately and ejects the paper. Cancels the job which is printing/copying at the same time.

Ink Out

No Cartridge

Incorrect Cartridge

Paper Out / Paper Jam

Sleep

Stop

At power-on

Ready / Ink Low

(when pressed for 3 seconds or more)

Sleep

Start Photo

Ready / Ink Low Adjust the size to the paper and starts color photo copying.

Sleep Recovers from sleep, adjust the size to the paper and starts color photo copying.

Start B&W

Ready / Ink Low Starts B&W copying.

Sleep Recovers from sleep and starts B&W copying.

Start B&W (when pressed for 3 seconds or more)

Start Color

Ready / Ink Low Adjust the size to the paper and starts B&W copying.

Sleep Recovers from sleep, adjust the size to the paper and starts B&W copying.

Ready / Ink Low Starts color copying.

Sleep Recovers from sleep and starts color copying.

 Turns the power ON.  Ejects the paper if the paper is not ejected yet.

 Runs a sequence of ink cartridge replacement.  Performs the following sequence in due order each time the stop button is pressed.

1. Moves the carriage to the ink check positions.

2. Moves the carriage there in the order of cyan, magenta, yellow, and black (prioritized order). Moves the carriage to the ink cartridge replacement position after displaying all the colors to be displayed. (Skips the colors with sufficient ink)

3. Moves the carriage back to the home position if it is at the ink cartridge replacement position, and performs replacement cleaning.

 Stops printing and cancels the job.  Ejects the paper if the paper is not ejected yet.  Recovers from the error if the ejecting the paper is performed and successful.

 Recovers from sleep.  Performs recovering from sleep (Initialization of the printer mechanism, etc.) if necessary.

 Prints the nozzle check pattern.  After printing the nozzle check pattern, the printer turns on stand-by; the same status after initialization.  Stops printing and cancels the print job if the stop button is pressed during printing the nozzle check pattern. It

becomes ready after ejecting the paper.

 Starts head cleaning.  Changes to the ink-out error status if the remaining ink level is not enough for cleaning.

 Recovers from sleep and starts head cleaning.  Changes to the ink-out error status if the remaining ink level is not enough for cleaning.

PRODUCT DESCRIPTION Control Panel 18

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Black

Yellow

Cyan

Magenta

8 dots

360 dpi VSD1(Large) dot

0.212 mm (1/120 inch)

Nozzle check pattern

Table 1-16. Buttons Functions

Button Printer Status Functions

Start Color (when pressed for 3 seconds or more)

Stop + Start B&W Ready / Ink Low Starts B&W copying in the draft mode.

Stop + Start Color Ready / Ink Low Starts color copying in the draft mode.

Start Photo + Start B&W Ready / Ink Low Makes 20 copies in B&W copying.

Start Photo + Start Color Ready / Ink Low Makes 20 copies in color copying.

Note *1: If the stop button is pressed when the power LED begins to flash, the nozzle check function becomes available.

Ready / Ink Low Adjust the size to the paper and starts color copying.

Sleep Recovers from sleep, adjust the size to the paper and starts color copying.

Sleep Recovers from sleep and starts B&W copying in the draft mode.

Sleep Recovers from sleep and starts color copying in the draft mode.

Sleep Recovers from sleep and makes 20 copies in B&W copying.

Sleep Recovers from sleep and makes 20 copies in color copying.

(This function becomes available if the stop button is pressed at the above timing regardless of whether the power button is being pressed or not.)

*2: The nozzle check pattern is as follows. Numbers in the figure indicate nozzle numbers. In actual check patterns, the version of firmware is also printed.

(Nozzle numbers and color names are not printed.)

*3: When displaying a paper out error : If the paper feeding finishes successfully, cancels the error and continues the procedure.

When displaying a paper jam error : If the paper ejection finishes successfully, cancels the error and continues the procedure.

PRODUCT DESCRIPTION Control Panel 19

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Table 1-17. LED Functions

LED

Printer Status

Power LED Paper LED Ink LED

Power OFF (processing) High-speed flashing OFF OFF 1

Fatal error (system error) High-speed flashing High-speed flashing High-speed flashing 2

Fatal error (mechanical error) Flashing Flashing Flashing 3

Maintenance request (Waste ink overflow)

Flashing ON ON 4

Power ON (initializing) Flashing --- --- 5

Paper jam error --- Flashing OFF 6

Multi-feed error --- Flashing OFF 7

Ink out error / No ink cartridge error Ink cartridge detection error

--- OFF ON 8

Ink cartridge replacement is in progress Flashing 2 OFF Flashing 2 9

Ink sequence is in progress Flashing --- --- 10

No paper error --- ON OFF 11

Copying Flashing --- --- 12

Printing from PC Flashing --- --- 13

Scanner operation from PC Flashing --- --- 14

Power ON (Print data processing) Flashing --- --- 15

Ink low --- --- Flashing 16

Power ON (normal idle state) ON --- --- 17

Power ON (Sleep) Low-speed flashing OFF OFF -

Printing & job being canceled Flashing --- --- -

Note : --- : No change

Flashing : Repeats ON and OFF every 1.25 seconds. Flashing 2 : Repeats ON for 0.5 second, OFF for 0.5 second, ON for 0.5 second, and OFF for 1.0 second. High-speed flashing : Repeats ON and OFF every 0.5 second. Low-speed flashing : Repeats ON and OFF every 2 seconds.

Note : See “ 3.2 Error Indications and Fault Occurrence Causes ” (p.29) for remedies for errors.

Priority

PRODUCT DESCRIPTION Control Panel 20

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Scan / Print direction

Readable Length

Paper Length

Paper Width

Paper Length

Readable

Width

Readable Length

OTM

OLM

Home position

 Standard copy

 Borderless copy

1.7 Stand-alone Copy Function

1.7.1 Supported Paper and Copy Mode

Paper Type

Plain paper

Photo Paper 4” x 6” Standard 1440x720 VSD3 ON ON OK

1.7.2 Setting for Stand-alone Copy

You can make settings by a specific key operation to select color copy, B&W copy, or photo copy. Refer to

Settings Function

Copy type Select from color copy, B&W copy or photo copy by a key operation. Layout • Color Copy, B&W Copy

Print setting

PRODUCT DESCRIPTION Stand-alone Copy Function 21

Paper type

Paper size

Quality

Fit to Page

Table 1-18. Supported Paper and Copy Mode

Size

A4,

Letter

Table 1-16 for key operation methods.

Table 1-19. Settings for Stand--alone Copy

Normal layout with 3mm margins

• Photo Copy Borderless (The area size of projections: Fixed to Maximum.)

Refer to Table 1-18.

When “Fit to Page” is selected by the key operation, a copy is made adjusting the image size to the paper by enlarging/reducing the original. The zoom ratio is determined as follows, and the same ratio is applied to both horizontal and vertical sides.

• Detects the image size of the original using the preview function.

• Calculates an appropriate zoom ratio from the image size and the printable area of the paper.

• If the ratio falls into less than 25%, 25% is applied. 400% is applied if over 400% likewise.

• For color/B&W copying, the zoom ratio is determined so as to make a copy of the whole image of the original on the paper.

• For photo copying, the zoom ratio is determined so as not to leave any margins on the paper.

Quality

Draft 360x120 Eco ON OFF NA

Standard 360x360 VSD1 ON OFF NA

Resolu-

tion

Dot

Size

Bi-D

Micro

Weave

Border-

less

1.7.2.1 Relation Between Original and Copy

The scanning start position is located on the front right of the scan bed. The relations between the original placed face down and its copy are as follows.

Figure 1-6. Relation Between Original and Copy (Borderless/With Borders)

Original Document

A Scan bed ---

B Scan area “ 1-9 Scanning Range ” (p.14)

C Original (face down) ---

OTM Top margin (out of scan range) “ 1-9 Scanning Range ” (p.14)

OLM Left margin (out of scan range) “ 1-9 Scanning Range ” (p.14)

Copied Document

D Copied paper ---

E Print area “ 1-7 Printing Area (Margins) ” (p.14)

F Copy ---

LM, RM Left margin, Right margin

TM, BM Top margin, Bottom margin*

“ 1-7 Printing Area (Margins) ” (p.14)

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1.7.3 Copy Speed

Table 1-20. Copy Speed

Copy Conditions (eMemo, A4 size, per copy) Time

360 x 120 dpi

Plain paper

360 x 360 dpi

Monochrome copy 5 sec

Color copy 14 sec

Monochrome copy 20 sec

Color copy 72 sec

1.7.4 Multiple Copying

Making 20 (fixed value) copies in color/B&W becomes available by operating specific keys (Refer to scanning by storing the scanned data in the memory to makes copying faster. However, if the scanned data is bigger than the memory’s capacity, scanning will be repeated for each copy. The conditions that the scanned data can be stored in the memory are as follows.

Copy Mode

Color copy Monochrome copy

p. 18). In this copying, the second copy or later are carried out without

Table 1-21. Conditions for Storing the Scanned Data

Quality

Draft

Standard

The scanned data can be stored. The second or later will be printed without scanning.

Tries to compress the scanned data to store it in the memory. Some data can not be stored, scanning will be repeated after the second in that case.

Storing the data/repeating scanning

PRODUCT DESCRIPTION Stand-alone Copy Function 22

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OPERATING PRINCIPLES

CHAPTER

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Compression Spring

LD Roller

Retard Roller

Lever Pick Clutch

PE Sensor

PF Motor

Cap Assy

Carriage Unit

CR Encoder Sensor

PF Roller

CR Timing Belt

EJ Roller

Wheel Star Metal

PF ScalePF Encoder Sensor

CR Motor

CR Scale

Wheel Star Exit

Pump Assy

2.1 Overview

This chapter describes the mechanism of Epson STYLUS NX100/NX105/SX100/ SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300.

2.1.1 Printer Mechanism

Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/ TX105/TX106/TX109/ME 300 printer mechanism consists of printhead, carriage mechanism, paper loading mechanism, paper feed mechanism, and ink system.

As the conventional models, Epson STYLUS NX100/NX105/SX100/SX105/TX100/ TX101/TX102/TX103/TX105/TX106/TX109/ME 300 is equipped with two DC motors; one is used to drive the paper loading, paper feed mechanisms, and the pump mechanism that includes the carriage lock mechanism, and another one is used to drive the carriage mechanism. A paper is fed from the rear ASF unit by means of the LD roller and Retard roller and ejected to the front tray.

OPERATING PRINCIPLES Overview 24

Figure 2-1. Printer Mechanism block diagram

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PF Encoder Sensor

CR Contact Module

PE Sensor

Printhead

CR Motor

PF Motor

CR Encoder Sensor

CIS Unit

CR Motor

2.1.2 Motors & Sensors

Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/ TX105/TX106/TX109/ME 300 printer mechanism is equipped with the following printhead, motors and sensors.

Table 2-1. Printer Mechanism Motors & Sensors

No. Name Specification

1 Printhead Refer to“ 2.1.3 Printhead ” (p.26)

Type: DC motor Drive voltage: 42VDC +/- 5% (DRV IC voltage)

2 CR Motor

3 PF Motor

4 PE Sensor

5 CR Contact Module CSIC board

6 CR Encoder Sensor

7 PF Encoder Sensor

Table 2-2. Scanner Mechanism CIS & Motor

No. Name Specification

1 CIS Unit

2 CR Motor

Coil resistance: TBD Inductance: TBD Drive method: PWM, constant-current chopping

Type: DC motor Drive voltage: 42VDC +/- 5% (DRV IC voltage) Coil resistance: TBD Inductance: TBD Drive method: PWM, constant-current chopping

Purpose : Detection of paper top and bottom edge, for control

Type: Photo interrupter

Type: Photo interrupter Resolution: TBD

Resolution :600 dpi (Main) x 1200 dpi (Sub) Pixel Depth :16 bit per pixel (input)

Type :TBD Voltage :TBD Coil resistance :TBD Inductance :TBD Drive method :PWM

to set paper at the print start position

1, 8 bit per pixel (output)

Figure 2-2. Motors & Sensors in Printer Mechanism

Figure 2-3. CIS Unit and CR Motor in Scanner Mechanism

OPERATING PRINCIPLES Overview 25

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C#29

C#1

M#29

M#1

Y#29

Y#3 Y#2

Y#1

K#3

K#1

K#90

K#89

K#2

Carriage movement direction

Paper feed direction

2.1.3 Printhead

The D2 Chips type printhead is employed.

 Nozzle configuration

 Black: 90 nozzles x 1  Color: 29 nozzles x 3 (cyan, magenta, yellow)

The nozzle layout as seen from behind the printhead is shown below.

Figure 2-4. Nozzle Layout

OPERATING PRINCIPLES Overview 26

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TROUBLESHOOTING

CHAPTER

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W A R N I N G

C H E C K

P O I N T

3.1 Overview

This chapter describes how to solve problems.

 Be careful to avoid electric shocks when checking the electrical

circuit boards (MAIN and PSE/PSB boards) while the power is turned on.

 Touching an FET, transistor or heat sink with one hand while

touching a metal part of the mechanism with the other hand could result in an electric shock, so carefully avoid this.

 After initial filling of ink has been repeated several times,

immediate moving or tilting of the printer could result in leaking of ink that has not been completely absorbed by the Waste Ink Pad. When initial filling of ink has been repeated several times, check the ink remaining in the tip of the Waste Ink Tube and the waste ink not absorbed by the Waste Ink Pad before moving the printer.

 Disassembly and reassembly of parts is often required when

identifying the causes of problems. The parts should be disassembled and re-assembled correctly while referring to

“DISASSEMBLY/ASSEMBLY” (p.54) so that the operation

and status of each check item can be correctly verified.

 Some individual part and units may require adjustment once

they are removed or replaced. If removing or replacing parts which have specific instructions for adjustment included in

“DISASSEMBLY/ASSEMBLY” (p.54), be sure to make these

adjustments after repairing the problem location.

3.1.2 Preliminary Checks

Before starting troubleshooting, be sure to verify that the following conditions are all met:

 The power supply voltage must be within the specification limits. (Measure the

voltage at the wall socket.)

 The power code must be free from damage, short circuit or breakage, or miswiring

in the power code.

 The printer must be grounded properly.

 The printer should not be located in a place where it can be exposed to too high or

low temperature, too high or low humidity, or abrupt temperature change.

 The printer should not be located near waterworks, near humidifiers, near heaters

or near flames, in a dusty atmosphere or in a place where the printer can be exposed to blast from an air conditioner.

 The printer should not be located in a place where volatile or inflammable gases

are produced.

 The printer should not be located in a place where it can be exposed to direct rays

of the sun.

 The printer must be placed on a strong and steady level table (without an

inclination larger than five degrees).

 Any vibrating equipment must not be placed on or under the printer.

 The paper used must conform to the specification.

 There is no error in handling of the printer.

3.1.1 Specified Tools

This printer does not require any specified tools for troubleshooting.

TROUBLESHOOTING Overview 28

 Check the inside of the printer, and remove foreign matters if any, such as paper

clips, staples, bits of paper, paper dust or toner.

 Clean the inside of the printer and the rubber rolls.

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3.2 Error Indications and Fault Occurrence Causes

This chapter describes how the printer indicates an error status with LEDs, and why the error is caused, when a problem happened during each sequence/operation (power-on sequence, paper feeding, ink drawing, and so on).

Table 3-1. Error Indications and Fault Occurrence Causes

Error Name

Fatal error (scanner)

Fatal error

Maintenance error (waste ink overflow) Flashing ON ON The waste ink counter exceeds to capacity. Table 3-3. (p36)

Ink out error / No ink cartridge error/

Ink cartridge detection error

Note : --: No change

Flashing: Repeats ON and OFF every 1.25 seconds. High-speed flashing: Repeats ON and OFF every 0.5 second.

(printer mechanism)

Paper jam error -- Flashing OFF Paper stays in the paper path after paper ejection. Table 3-4. (p37)

Paper out error -- ON OFF Failure to load paper to print. Table 3-5. (p40)

Double feed error -- Flashing OFF Double feed during double sided printing. Table 3-6. (p42)

High-speed

Flashing Flashing Flashing

LED Indications

Power Paper Ink

High-speed

flashing

-- OFF ON

flashing

High-speed

flashing

Error Cause Reference

• RAM trouble occurs.

• System trouble occurs.

Mechanical trouble occurs.(CR error, PF error etc.)

• The cartridge has run out of ink.

• The printer could not detect the cartridge.

• The printer detected non-Epson cartridge.

• Writing to/reading from the CSIC could not be made.

Table 3-2. (p30)

Table 3-7. (p43)

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 29

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Scanner Motor cable

Scanner Carriage FFC

3.2.1 Troubleshooting by Error Message

The following tables provide troubleshooting procedures. Confirm the error message indicated on the LED or the STM3 screen on the PC’s display, and verify it in the following list and the figures at the end of this chapter for the corresponding troubleshooting remedy. If some parts need to be replaced or repaired, make sure to follow the procedure given in Chapter 4 “Disassembly / Assembly”.

Check point Remedy

1. Connect the Scanner Motor cable to J5 on the Main Board.

2. Replace the Scanner Motor with a new one.

Occurrence timing

CR position

Detailed phenomenon

Table 3-2. Check point for Fatal error according to each phenomenon

Defective

unit/part name

1. Check if the Scanner Motor cable is connected to J5 on the Main Board.

Scanner Motor

2. Check if the coil resistance of the Scanner Motor is

TBD Ω or by using the tester (refer to Table 3-13).

• Power on

• Anywhere

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 30

The Scanner Unit does not initialize when the power is turned on.

Scanner Carriage

FFC

CIS Unit 1. Check if the CIS Unit is damaged. 1. Replace the CIS Unit with a new one.

3. Check if the Scanner Motor Cable is damaged. 1. Replace the Scanner Motor Unit with a new

1. Check if the Scanner Carriage FFC is connected to J4 on the Main Board.

2. Check if the Scanner Carriage FFC is damaged. 2. Replace the Scanner unit with a new one.

3. Replace the Scanner Motor Unit with a new one.

one.

1. Connect the Scanner Carriage FFC to J4 on the Main Board.

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CR Motor Cable

Table 3-2. Check point for Fatal error according to each phenomenon

Occurrence timing

CR position

• Operation

• Anywhere

Detailed phenomenon

The Scanner Carriage Unit. does not operate.

Defective

unit/part name

Lower Scanner

Housing

Check point Remedy

1. Check if the grease is enough on the Guide Rail of the Lower Scanner Housing. (TBD)

2. Check if the Scanner Carriage Unit is correctly

assembled.

1. Check if the CR Motor Cable is connected to J7 on the

Main Board.

1. After wiping the grease on the Guide Rail of the Lower Scanner Housing with a dry, soft cloth, coat it with grease. (Refer to Chapter 6

"MAINTENANCE" (p.116).) (TBD)

2. Reassemble the Scanner Carriage Unit

correctly.

1. Connect the CR Motor Cable to J7 on the Main

Board.

• Power on

• Anywhere

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

CR Motor

2. Check if the CR Motor Cable is damaged. 2. Replace the CR Motor with a new one.

3. Check if the CR Motor operates. 3. Replace the CR Motor with a new one.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 31

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PF Motor Cable

Change Lever

Compression Spring

Table 3-2. Check point for Fatal error according to each phenomenon

Occurrence timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the PF Motor Cable is connected to J6 on the Main Board.

1. Connect the PF Motor Cable to J6 on the Main Board.

• Power on

• Anywhere

When turning on the power, the PF Motor does not operate at all

When turning on the power, the Carriage Unit collides to the Change Lever located to the front side of the printer.

PF Motor

ASF Unit

2. Check if the PF Motor Cable is damaged. 2. Replace the PF Motor with a new one.

3. Check if the PF Motor operates. 3. Replace the PF Motor with a new one.

1. Check if the PF Motor Connector Cable is connected to J6 on the Main Board.

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

3. Check if the PF Motor operates. 3. Replace the PF Motor with a new one.

1. Check if the Compression Spring comes off from the Change Lever.

1. Connect the PF Motor Cable to J6 on the Main Board.

1. Replace the Change Lever and the Compression Spring with new ones.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Upper Paper Guide

Slit of the CR Encoder Board

CR Scale

Table 3-2. Check point for Fatal error according to each phenomenon

Occurrence timing

CR position

Detailed phenomenon

The Carriage Unit collides with the Upper Paper Guide Unit when power is turned on.

Defective

unit/part name

Upper Paper Guide

Check point Remedy

1. Check if the Upper Paper Guide is correctly assembled. 1. Reassemble the Upper Paper Guide to the Main Frame correctly.

• Power on

• Anywhere

When turning on the power, the Carriage Unit collides to the right side of the Main Frame.

CR Scale

1. Check if the CR Scale does not come off or it properly

passes through the slit of the CR Encoder Board.

2. Check if the CR Scale is damaged or contaminated. 2. Replace the CR Scale with a new one or clean it

1. Reassemble the CR Scale correctly.

* If the problem is not solved, replace the Main

Board with a new one.

completely.

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CR Encoder Board Encoder FFC

PF Scale

PF Encoder Sensor

Table 3-2. Check point for Fatal error according to each phenomenon

Occurrence timing

CR position

Detailed phenomenon

When turning on the power, the Carriage Unit collides to the right side of the Main Frame.

Defective

unit/part name

CR Encoder Board

Check point Remedy

1. Check if the Encoder FFC is connected to the CR

Encoder Board.

1. Connect the Encoder FFC to the CR Encoder Board.

• Power on

• Anywhere

The eject rollers are rotating at high speed when power is turned on. (For about 1 cycle.)

2. Check if the Encoder FFC is damaged. 2. Replace the Encoder FFC with a new one.

3. Check if the CR Encoder Board is damaged. 3. Replace the CR Encoder Board with a new one.

1. Check if the PF Scale is damaged or contaminated. 1. Replace the PF Scale with a new one.

PF Scale/

PF Encoder Sensor

2. Check if the PF Encoder Sensor is damaged. 2. Replace the PF Encoder Sensor with a new one.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Cap Assy

Lever Cleaner

Cap Assy

Spring

Cleaner Case

Table 3-2. Check point for Fatal error according to each phenomenon

Occurrence timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Cap Assy and the Lever Cleaner are assembled correctly.

1. Reassemble the Cap Assy and Lever Cleaner correctly.

• Power on

• Anywhere

When turning on the power, the Carriage cannot get out of home position.

Ink System

2. Check if the Spring Cleaner Case does not come off in the Cap Assy.

2. Reassemble the Spring Cleaner Case correctly.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Lever Cleaner

Cleaner Lever

Spring

Table 3-2. Check point for Fatal error according to each phenomenon

Occurrence timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

3. Check if the Spring Cleaner Lever comes off from the Lever Cleaner.

3. Reassemble the Cleaner Lever Spring correctly.

• Power on

• Anywhere

Occurrence

timing

CR position

• Operation

•–

When turning on the power, the Carriage cannot get out of home position.

Table 3-3. Check point for the Maintenance request according to each phenomenon

Detailed phenomenon

An error is indicated on the LED and STM or LCD.

Ink System

4. Check the routing of the Waste Ink Tube. 4. Route the Waste Ink Tube correctly.

(Refer to Chapter 4 “Ink System” (p.77))

5. Check if the Cap Assy is damaged. 5. Replace the Cap Assy with a new one.

Main Frame 1. Check if the Main Frame is deformed. 1. Replace the Main Frame with a new one.

Defective

unit/part name

Waste Ink Pads ---

Check point Remedy

1. Change the Waste Ink Pads and initialize the Waste Ink Pad Counter. (Refer to Chapter 5

“ADJUSTMENT” (p.100))

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Paper Back Lever

Extension Spring

PE Sensor Lever

Occurrence

timing

CR position

• Operation

• Outside HP

Table 3-4. Check point for Paper jam error according to each phenomenon

Detailed phenomenon

A paper feeding sequence failed to feed the paper, but a paper ejection sequence is performed.

Defective

unit/part name

ASF Unit

Upper Paper Guide*

Check point Remedy

1. Check if the ASF Unit is properly installed. 1. Install the ASF Unit properly.

2. Check if the Paper Back Lever operates correctly in the paper loading sequence.

2. Set the Extension Spring between the ASF Housing and the Paper Back Lever.

1. Check if the Extension Spring is properly installed. 1. Set the Extension Spring between the Main Frame and the PE Sensor Lever.

Note * : In case that the paper jam error occurs in each operation, the jammed paper contacts the nozzle surface of the Printhead and the Printhead may be damaged.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Extension Spring

Backside of ASF Unit

EJ Frame Assy

Table 3-4. Check point for Paper jam error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Extension Spring operates correctly in the

paper loading sequence.

1. Set the Extension Spring between the Retard Roller Assy and the ASF Housing.

Paper is being resent during paper feeding operation.

• Operation

• Outside HP

When turning on the power, the Carriage Unit move to the home position correctly. But, the paper feeding sequence is performed without loading paper in the paper loading sequence.

• Operation

•–

Note * : In case that the paper jam error occurs in each operation, the jammed paper contacts the nozzle surface of the Printhead and the Printhead may be damaged.

The top edge of paper does not go through between the EJ Roller Unit and the EJ Frame Assy.

ASF Unit

Upper Paper Guide

EJ Frame Assy*

1. Check if the Extension Spring is properly installed. 1. Set the Extension Spring between the Main Frame and the PE Sensor Lever.

1. Check if the EJ Frame Assy is correctly assembled. 1. Reassemble the EJ Frame Assy correctly.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Wheel Star Metal Spring Star Wheel Wheel Star Exit

EJ Roller

Upper Paper Guide

Table 3-4. Check point for Paper jam error according to each phenomenon

Occurrence

timing

CR position

• Operation

•–

Detailed phenomenon

The top edge of paper does not go through between the EJ Roller Unit and the EJ Frame Assy.

Defective

unit/part name

EJ Frame Assy*

EJ Roller*

Check point Remedy

2. Check if the Wheel Star Metal, Spring Star Wheel and

Wheel Star Exit come off.

1. Check if the EJ Roller is correctly assembled. 1. Reassemble the EJ Roller correctly.

2. Reassemble the Wheel Star Metal, Spring Star Wheel and Wheel Star Exit correctly.

2. Check if the EJ Roller Gear is damaged. 2. Replace the EJ Roller Gear with a new one.

1. Check if the Upper Paper Guides correctly assembled. 1. Reassemble the Upper Paper Guide to the Main Frame correctly.

The top edge of paper is not loaded to the PF Roller Unit.

Note * : In case that the paper jam error occurs in each operation, the jammed paper contacts the nozzle surface of the Printhead and the Printhead may be damaged.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 39

Upper Paper Guide*

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

LD Roller

Non-adhesive Area

Staples

Cloth moistened

with alcohol

CL Sheet

Adhesive Area

This side down

(Use a post card for

the base sheet)

HopperCompression Spring

Table 3-5. Check point for Paper out error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

The LD Roller cannot pick up paper although the LD Roller attempt to rotate correctly.

Defective

unit/part name

ASF Unit

Check point Remedy

1. Check if any paper dust is adhered to the surface of the

LD Roller.

1. Set a cleaning sheet in the ASF Unit up side down. Then holding the top edge, try to load the paper from the Printer driver. The micro pearl on the LD Roller surface is removed. To remove severe smear, staple a cloth moistened with alcohol to a post card and clean the roller in the same manner.

• Operation

•–

1. Check if the Hopper operates correctly in the paper loading sequence.

*If the problem is not solved, replace the ASF

unit with a new one.

1. Reassemble the Compression Spring between the Lower Housing and the Hopper.

The Hopper does not operate during the paper loading sequence although the LD Roller rotates to load paper from the ASF

Hopper

Unit.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Extension Spring

Guide pin

Clutch

LD Roller Shaft

Change Lever

Compression Spring

Table 3-5. Check point for Paper out error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if the Extension Spring comes off from the Clutch mechanism.

1. Reassemble the Extension Spring in the Clutch mechanism.

• Operation

•–

The drive of the PF Motor is not transmitted to the LD Roller Shaft.

LD Roller

Assy

ASF Unit

2. Check if the positioning hole of the Clutch comes off from the guide pin of the LD Roller Shaft.

3. Check if the Clutch tooth is damaged. 3. Replace the LD Roller Assy with a new one.

4. Check if the Clutch is damaged. 4. Replace the LD Roller Assy with a new one.

1. Check if the Compression Spring comes off from the Change Lever.

2. Reassemble the positioning hole of the Clutch on the guide pin of the LD Roller Shaft.

1. Replace the Change Lever and Compression Spring with new ones.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Extension Spring

Backside of ASF Unit

Paper Back Lever

Extension Spring

Table 3-5. Check point for Paper out error according to each phenomenon

Occurrence

timing

CR position

• Operation

•–

Occurrence

timing

CR position

Detailed phenomenon

The LD Roller is not set to the ASF home position and paper is always loaded from the ASF Unit during the paper loading sequence.

Table 3-6. Check point for Double feed error according to each phenomenon

Detailed phenomenon

Defective

unit/part name

ASF Unit

Defective

unit/part name

Check point Remedy

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

Check point Remedy

• Operation

•–

After both surfaces were printed, the paper was ejected but an error is displayed.

ASF Unit

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

2. Check if the Paper Back Lever operates correctly in the paper loading sequence.

1. Set the Extension Spring between the Retard Roller Assy and the ASF Housing.

2. Set the Extension Spring between the ASF Housing and the Paper Back Lever.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Memory Chip

Connector

CR Contact Module is behind

Holder Contact Assy.

Head FFC

Contact Assy

Table 3-7. Check point for Ink out error / No ink cartridge error read error / write error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Ink Cartridge

Check point Remedy

1. Check if Ink Cartridge is properly installed. 1. Install the Ink Cartridge properly.

2. Check if the Memory Chip is disconnected or chipped. 2. Replace the Ink Cartridge with a new one.

• Power on

•Inside HP

After the printer detects that the carriage is at the home position, an error is displayed.

CR Contact Module

Contact Assy

1. Check if the Head FFC is connected correctly to the connector on the CR Contact Module.

2. Check if the CSIC Board is damaged. 2. Replace the CR Contact Module with a new

3. Check if the Contact Assy is damaged. 1. Replace the Contact Assy with a new one.

1. Connect the Head FFC to the connector on the CR Contact Module.

one.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

PS Board Cable

PS Board

PS Board Cable

Table 3-8. Check point for Communication error according to each phenomenon

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

• Power on

• Anywhere

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

Panel Unit

PS Board Unit

1. Check if the Panel FFC is damaged. 1. Replace the Panel Board with a new one.

2. Check if the Panel Board is damaged. 2. Replace the Panel Board with a new one.

1. Check if the PS Board Cable is connected correctly to J3 on the Main Board.

2. Check if the PS Board Cable/PS Board is damaged. 2. Replace the PS Board Unit with a new one.

1. Connect the PS Board Cable to J3 on the Main Board.

* If the problem is not solved, replace the Main

Board with a new one.

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Panel FFC

Table 3-8. Check point for Communication error according to each phenomenon

Occurrence

timing

CR position

• Power on

•–

Detailed phenomenon

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

Defective

unit/part name

USB Cable

Main Board

Check point Remedy

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

1. Check if an correct model name is stored into the address of the EEPROM on the Main Board.

2. Check if the Panel FFC is connected to J2 on the Main Board.

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

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

2. Connect the Panel FFC to J2 on the Main Board.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Extension Spring

Backside of ASF Unit

Paper Back Lever

Extension Spring

3.2.2 Superficial Phenomenon-Based Troubleshooting

This section explains the fault locations of the error states (print quality and abnormal noise) other than the error states (LED and STM3) in the previous section.

Table 3-9. Check point for the error that multiple sheets of paper are always loaded without LEDs and STM3

Occurrence

timing

CR position

Detailed phenomenon

Defective

unit/part name

Check point Remedy

• Operation

•–

The LEDs and STM3 are not indicating error conditions. But, multiple sheets of paper are always loaded from the ASF Unit.

ASF Unit

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

2. Check if the Paper Back Lever operates correctly in the paper loading sequence.

1. Set the Extension Spring between the Retard Roller Assy and the ASF Housing.

2. Set the Extension Spring between the ASF Housing and the Paper Back Lever.

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Table 3-10. Check point for the abnormal noise

Occurrence

timing

CR position

• Anytime

• Anywhere

Print Quality

State

• Scanned image is not clear.

Detailed phenomenon

The abnormal noise occurs at the first power on timing and during each operation although the printing operation is performed.

The bottom of the Carriage Unit contacts the surface of the EJ Frame Assy.

The Carriage Unit collides to the Upper Paper Guide Unit during each operation.

Table 3-11. Check point for the defective scanned image quality

Detailed phenomenon

There are dusts or the like on the Document Glass. (white dots appear on the scanned image)

There are dusts or the like on the LED inside the Rod Lens Array. (vertical stripes appear on the scanned image)

The LED of Scanner CIS Unit does not light up.

Defective

unit/part name

Carriage Unit

ASF Unit

EJ Frame Assy

Upper Paper Guide

Defective

unit/part name

Upper Scanner

Housing

CIS Unit

Check point Remedy

1. Check if the grease on the Carriage Path is sufficient.

(TBD)

1. Check if the Change Lever moves smoothly. 1. Replace the ASF Unit with a new one.

1. Check if the EJ Frame Assy is bent up. 1. Replace the EJ Frame Assy with a new one.

1. Check if the Upper Paper Guide is attached securely. (check if it interferes with the Carriage Unit)

Check point Remedy

1. Check if there is foreign material on the Document Glass.

1. Check if there is foreign material on the LED. 1. Remove the foreign material from the CIS

2. Check if the Rod Lens Array is damaged. 2. Replace the CIS Unit with a new one.

1. Check if the LED lights up. 1. Replace the CIS Unit with a new one.

1. Wipe off the remaining grease on the Carriage path and lubricate it on its frame. (TBD)

1. Reassemble the Upper Paper Guide to the Main Frame.

1. Remove the foreign material from the Document Glass. (Refer to Chapter 6 “MAINTENANCE”

(p.108).)

Unit. (blow away the dusts)

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Seal rubber part

Compression

Spring

Table 3-12. Check point for the defective printing quality

Print Quality State Detailed phenomenon

Defective

unit/part name

Check point Remedy

1. Check if there is not any foreign material/damage around the seal rubber part on the Cap Assy.

1. Remove the foreign material around the seal rubber parts carefully.

• Dot missing and mixed colors

Ink is scarcely ejected to the Cap from the Printhead.

Ink is ejected to the Cap from the Printhead, but the printer does not recover from the error after cleaning or ink change.

Cap Assy

2. Check if the Compression Spring is correctly mounted on the Cap Assy.

1. Check if it returns to normal by performing CL operation

Printhead

Cleaner Blade 1. Check if the Cleaner Blade has paper dust or bending. 1. Replace the Cap Assy with a new one.

Ink System

Main Board 1. Check if the Main Board is damaged. 1. Replace the Main Board with a new one.

or replacing the Ink Cartridge.

2. Check if the Printhead is damaged. 2. Replace the Printhead with a new one.

1. Check the routing of the Waste Ink Tube. 1. Route the Waste Ink Tube correctly.

2. Check if the Pump Assy is correctly assembled. 2. Reassemble the Pump Assy correctly.

2. Replace the Cap Assy with a new one.

1. Perform CL operation and the Ink Cartridge replacement specified times. If it doesn’t work, change the Printhead with a new one.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Printhead

Connector

Head

FFC

J9 J8

CR movement

direction

Table 3-12. Check point for the defective printing quality

Print Quality State Detailed phenomenon

• White streak / abnormal discharge

Ink is ejected to the Cap from the Printhead, but printing is not done at all after cleaning or ink change, or abnormal discharge occurs.

Vertical banding appears against the CR movement direction. And, it looks like uneven printing.

• White streak / color unevenness occurrence

[Note] If the problem is not solved, replace the

CR Motor with a new one.

Defective

unit/part name

1. Check if the Head FFC is securely connected to the Printhead Connectors and the Main Board Connectors.

Check point Remedy

1. Connect the Head FFC to the Printhead and the Main Board Connectors.

(J8, J9)

Head FFC

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

Printhead

1. Check if it returns to normal by performing CL operation or replacing the Ink Cartridge.

1. Perform CL operation and the Ink Cartridge replacement specified times. If it doesn’t work, change the Printhead with a new one.

Main Board Unit 1. Check if the Main Board is damaged. 1. Replace the Main Board Unit with a new one.

Adjustment

1. For printing in the Bi-D mode, check if Bi-D Adjustment has been performed properly.

1. Perform Bi-D Adjustment to correct print start timing in bi-directional printing. (Refer to

Chapter 5 “ADJUSTMENT” (p.100).)

1. Check if the Nozzle Check Pattern is printed properly. 2. Perform Head Cleaning and check the Nozzle Check Pattern. (Refer to Chapter 5

Printhead

“ADJUSTMENT” (p.100).)

If the problem is not solved, replace the Printhead with a new one.

1. Check if there is any foreign material on the Carriage

path.

1. Remove foreign material from surface of the Carriage path.

2. Check if the Main Frame is deformed. 2. Replace the Main Frame with a new one.

Main Frame

3. Check if the grease is enough on the Carriage path of the Main Frame. (TBD)

3. After wiping the grease G-71 on the Carriage path with a dry, soft cloth, coat it with grease. (Refer to

Chapter 6 “MAINTENANCE”

(p.108).) (TBD)

EJ Frame Assy 1. Check if the EJ Frame is deformed. 1. Replace the EJ Frame Assy with a new one.

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CR movement

direction

PF Roller Assy

Table 3-12. Check point for the defective printing quality

Print Quality State Detailed phenomenon

Micro banding appears horizontally against the CR movement direction and it appears with the same width.

Defective

unit/part name

Printer driver & exclusive paper

Printhead

Check point Remedy

1. Check if the suitable paper is used according to the printer driver setting.

1. Check if the Nozzle Check Pattern is printed correctly. 1. Perform the Head Cleaning and check the

1. Check if there is foreign material on the surface of the PF Roller Assy.

1. Use the suitable paper according to the printer driver setting.

Nozzle Check Pattern. (Refer to Chapter 5

“ADJUSTMENT” (p.100).)

If the problem is not solved, replace the Printhead with a new one.

1. Clean the surface of the PF Roller Assy carefully with the soft cloth.

• White streak / color unevenness occurrence

[Note] If the problem is not solved, replace the

PF Motor with a new one.

The Star wheel mark against the CR movement direction.

Printing is blurred.

PF Roller Assy

EJ Frame Assy

Printer driver & exclusive paper

Printhead

2. Check if the PF Roller Assy is damaged. 2. Replace the PF Roller Assy with a new one.

1. Check if the Wheel Star Metal and Spring Star Wheel does not come off.

2. Check if the surface of the EJ Frame Assy is flat. 2. Replace the EJ Frame Assy with a new one.

1. Check if the suitable paper is used according to the printer driver setting.

1. Check if the correct Head ID is stored into the EEPROM by using the Adjustment Program.

1. Reassemble the Wheel Star Metal and Spring Star Wheel correctly.

1. Use the suitable paper according to the printer driver setting.

1. Input 11-digit code of the Head ID into the EEPROM by using the Adjustment Program.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

LD Roller

Lower Housing (Front Paper Guide)

Porous Pad Front Paper Guide

Table 3-12. Check point for the defective printing quality

Print Quality State Detailed phenomenon

• Print start position slip

The printing operation is correctly performed. But, the top margin is insufficient than usual one.

Defective

unit/part name

LD Roller

Check point Remedy

1. Check if paper dust is adhered to the surface of the LD Roller.

1. Check if the Lower Housing is free from ink stain. 1. Clean the Lower Housing with a soft cloth.

1. Set a cleaning sheet in the ASF up side down. Then holding the top edge, try to load the paper from the Printer driver. The micro pearl on the LD Roller surface is removed. To remove severe smear, staple a cloth moistened with alcohol to a post card and clean the roller in the same manner. As for the cleaning sheet, refer to

“ Check point for Paper out error according to each phenomenon ” (p.40).

* If the problem is not solved, replace the ASF

Unit with a new one.

Lower Housing

• Ink stain of paper

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 51

Ink stain occurs at the back, top end or bottom end of the print paper.

2. Check if heaps of ink are formed on Porous Pad Front Paper Guide.

EJ Roller Assy 1. Check if the EJ Frame Assy is free from ink stain. 1. Clean the EJ Frame Assy with a soft cloth.

PF Roller Assy 1. Check if the PF Roller Assy is free from ink stain. 1. Clean the PF Roller Assy with a soft cloth.

2. Replace the Lower Housing with a new one.

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Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Wheel Star Metal Spring Star Wheel Wheel Star Exit

Table 3-12. Check point for the defective printing quality

Print Quality State Detailed phenomenon

Defective

unit/part name

Printhead

Upper Paper Guide

Check point Remedy

1. Check if the Printhead Cover has the ink drop. 1. Clean the Printhead Cover carefully with a soft

cloth.

1. Check if the Upper Paper Guide Unit is free from ink stain.

2. Check if the Wheel Star Metal, Spring Star Wheel and Wheel Star Exit come off.

1. Clean the Upper Paper Guide Unit with a soft cloth.

2. Reassemble the Wheel Star Metal, Spring Star Wheel and Wheel Star Exit correctly.

• Ink stain of paper

Ink sticks to other than the print area of the paper, resulting in contamination.

EJ Frame Assy

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3.2.3 Motor and Sensor Troubleshooting

 Motors

The resistance values for the CR motor and the PF motor are given below, however, the values cannot be used to check the motors status since they are DC motor and the resistance between the electric poles varies. Visually check the motors for abnormal operation and if it is hard to judge, replace the motor.

Table 3-13. Sensor check point

Motor Motor Type Drive Voltage Resistance

CR motor

PF motor TBD

Scanner motor TBD TBD

DC motor with brush

DC 42V ± 5%

TBD

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DISASSEMBLY/ASSEMBLY

CHAPTER

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W A R N I N G

C A U T I O N

4.1 Overview

This section describes procedures for disassembling the main components of Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/ TX106/TX109/ME 300. 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”. “CAUTION” signals a precaution which, if ignored, could result in damage to equipment. Important tips for procedures are described under the heading “CHECK POINT”. If the assembly procedure is different from the reversed disassembly procedure, the correct procedure is described under the heading “REASSEMBLY”. Any adjustments required after reassembly of components or parts are described under the heading “ADJUSTMENT REQUIRED”. When you have to remove any components or parts that are not described in this chapter, refer to the exploded diagrams in the appendix.

Read the following precautions before disassembling and assembling.

4.1.1 Precautions

See the precautions given under the heading “WARNING” and “CAUTION” in the following columns when disassembling or assembling Epson STYLUS NX100/ NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300.

 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.

 Always wear gloves for disassembly and reassembly to protect

your eyes from ink. If any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.

 Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

 To protect sensitive microprocessors and circuitry, use static

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

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

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



When transporting the printer after installing the ink cartridge, pack the printer for transportation without removing the ink cartridge and be sure to secure the Ink Cartridge to the printer cover with tape tightly to keep it from moving.

 Use only recommended tools for disassembling, assembling or

adjusting the printer.

 Observe the specified torque when tightening screws.  Apply lubricants as specified. (See Chapter 6

“MAINTENANCE”

 Make the specified adjustments when you disassemble the

printer. (See Chapter 5 “ADJUSTMENT”

 when reassembling the Waste Ink Tube, make sure that the tip

of waste ink tube is placed in the correct position, otherwise ink may leak.

 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.

(p108) for details.)

4.1.2 Tools

Use only specified tools to avoid damaging the printer.

Table 4-1. Tools

Name EPSON Tool Code*

(+) Phillips screwdriver #1 1080530

(+) Phillips screwdriver #2 ---

Flathead Precision screwdriver #1 ---

Tweezers ---

Longnose pliers ---

Note * : All of the tools listed above are commercially available.

EPSON provides the tools listed with EPSON tool code.

(p100) for details.)

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4.1.3 Work Completion Check

If any service is made to the printer, use the checklist shown below to confirm all works are completed properly and the printer is ready to be returned to the user.

Table 4-2. Work Completion Check

Classification Item Check Point Status

Self-test Is the operation normal? OK / NG

ON-line Test Is the printing successful? OK / NG

Printhead (Nozzle check pattern print)

Carriage Mechanism

Printer Unit

Paper Feeding Mechanism

Is ink discharged normally from all the nozzles?

Does it move smoothly? OK / NG

Is there any abnormal noise during its operation?

Is the CR Motor at the correct temperature? (Not too hot to touch?)

Is paper advanced smoothly? OK / NG

No paper jamming? OK / NG

No paper skew? OK / NG

No multiple feeding? OK / NG

No abnormal noise? OK / NG

Is the paper path free of any obstructions?

Is the PF Motor at correct temperature?

OK / NG

Table 4-2. Work Completion Check

Classification Item Check Point Status

Is glass surface dirty? OK / NG

Mechanism

Scanner unit

ON-line Test ON-line Test Is the operation normal? OK / NG

Copy Copy Is the local copy action normal? OK / NG

Adjustment

Lubrication

Function ROM Version Version: OK / NG

Packing

CR mechanism

LED

Specified Adjustment

Specified Lubrication

Ink Cartridge

Waste Ink pad

Is any foreign substance mixed in the CR movement area?

Does CR operate smoothly? OK / NG

Does CR operate together with scanner unit?

Does CR make abnormal noise during its operation?

Does LED turn on normally? And is white reflection test done near home position?

Are all the adjustment done correctly

Are all the lubrication made at the specified points?

Is the amount of lubrication correct?

Are the ink cartridges installed correctly?

Are the waste ink pads adequate to absorb?

OK / NG

Is the printer carriage placed at the capping position?

Have all the relevant items been included in the package?

OK / NG

Others

Protective materials

Attachments, Accessories

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You need to remove the parts/units shown in dashed line box if they exist on the way to the target part/unit.

“ 4.5.5 EJ Roller/ EJ

Frame Assy ” (p73)

“ 4.5.4 PF Encoder/

PF Scale ” (p73)

Start

“ 4.4.1 Panel Unit ” (p64)

“ 4.3.1 Paper Support

Tray ” (p58)

“ 4.3.3 Document Cover/

ASF Cover ” (p59)

“ 4.3.6 Middle Housing ”

(p63)

“ 4.5.3 Hopper ” (p72)

“ 4.4.2 Main Board ”

(p65)

“ 4.5.12 PF Roller ”

(p90)

“ 4.5.14 Waste Ink Pads ”

(p93)

“ 4.5.9 Main Frame ”

(p84)

“ 4.5.13 LD Roller/

ASF Unit ” (p91)

“ 4.5.6 CR Motor/

Driven Pulley ” (p75)

“ 4.5.7 Ink System ” (p77)

“ 4.5.1 Printhead ” (p68)

“ 4.5.11 CR Unit ” (p87)

“ 4.5.4 PF Encoder/

PF Scale ” (p73)

“ 4.5.5 EJ Roller/

EJ Frame Assy ”

(p73)

“ 4.5.1 Printhead ” (p68)

“ 4.3.4 Scanner Stand /

Cover Wire ” (p60)

“ 4.5.8 PF Motor ”

(p82)

“ 4.3.2 Stacker Assy ”

(p58)

“ 4.3.5 Scanner Unit ” (p62)

“ 4.4.3 Power Supply

Unit ” (p66)

“ 4.5.2 CR Scale ” (p71)

“ 4.5.6 CR Motor/

Driven Pulley ” (p75)

“ 4.5.7 Ink System ” (p77)

“ 4.5.10 Upper Paper

Guide ” (p86)

“ 4.5.13 LD Roller/

ASF Unit ” (p91)

“ 4.6.2 Scanner Carriage

Unit ” (p97)

“ 4.6.1 Upper Scanner

Housing ” (p96)

“ 4.6.3 Scanner Motor

Unit ” (p99)

“ 4.3.3 Document Cover/

ASF Cover ” (p59)

4.2 Disassembly Procedures

For disassembling each unit, refer to the pages in the following flowchart.

Figure 4-1. Disassembling Flowchart

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Guide Pins

Paper Support Tray

Stacker Assy

Guide Pins

4.3 Removing the Housing

4.3.1 Paper Support Tray

 Parts/Components need to be removed in advance:

None

 Removal procedure

1. Open the Paper Support Tray.

2. Release both the guide pins that secure the Paper Support Tray, and remove

the Paper Support Tray.

4.3.2 Stacker Assy

 Parts/Components need to be removed in advance:

None

 Removal procedure

1. Open the Stacker Assy and pull it out.

2. Release both the guide pins that secure the Stacker Assy, and remove the

Stacker Assy.

Figure 4-3. Removing the Stacker Assy (1)

Figure 4-2. Removing the Paper Support Tray

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Tray Exit Inner

Tray Exit Outer

Outer rib

Inner rib

Rib

Document Cover

ASF Cover

Guide Pins

Document Cover

Scanner Unit

Guide Pins

3. Bend the Stacker Assy to release the ribs, then separate the Tray Exit Outer and the Tray Exit Inner.

Figure 4-4. Removing the Stacker Assy (2)

4.3.3 Document Cover/ASF Cover

 Parts/Components need to be removed in advance:

None

 Removal procedure

1. Release both the guide pins with the hinge side held up slightly as shown below, and remove the ASF Cover from the Document Cover.

Figure 4-5. Removing the ASF Cover

2. Open the Document Cover.

3. Release both the other guide pins that secure the Document Cover, and

remove the Document Cover from the Scanner Unit.

DISASSEMBLY/ASSEMBLY Removing the Housing 59

Align the edges of the Tray Exit Outer and the Tray Exit Inner, and attach them together. Then, engage the inner ribs with the outer ones.

Figure 4-6. Removing the Document Cover

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Document Pad

Home position

Double-sided tape position

Standard line

Document Cover

C A U T I O N

Hook

Guide pins

Scanner Stand

Scanner Unit

Scanner Stand Spring

Install the Document Pad following the procedure below.

1. Place the Document Pad with the side where the double-sided tape attached upward on the Rod Lens Array aligning its corner with the home position.

2. Close the Document Cover to attach the Document Pad.

4.3.4 Scanner Stand /Cover Wire

 Parts/Components need to be removed in advance:

None

 Removal procedure

 Scanner Stand

1. Open the Scanner Unit.

2. Release the hooks (x2) at the lower part of the Scanner Stand.

Be careful not to lose the Scanner Stand Spring when removing the Scanner Stand.

3. Release the guide pins (x2) at the upper part of the Scanner Stand, and remove the Scanner Stand.

Figure 4-7. Document Pad Position

Figure 4-8. Removing the Scanner Stand

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Hook

Cover Wire

Scanner Unit

Scanner Stand

Scanner Stand Spring

Hook

Groove

Panel FFC

Scanner Motor Cable

Cover Wire

Rib A Rib B

Scanner FFC

 Cover Wire

1. Open the Scanner Unit.

2. Release both the hooks in the direction of arrow, and remove the Cover Wire.

Figure 4-9. Removing the Cover Wire

When installing the Scanner Stand, secure the shorter leg of the Scanner Stand Spring to the groove on the Scanner Unit, and secure the longer to the hook of the Scanner Stand as shown below.

 Make sure not to catch the Scanner Motor Cable and the

Scanner FFC with the Cover Wire.

 When installing the Cover Wire, insert the rib B so as to let the

rib A of the Cover Wire under the Panel FFC.

Figure 4-11. Installing the Cover Wire

Figure 4-10. Installing the Scanner Stand

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C A U T I O N

Scanner Unit

Scanner FFC

Scanner Motor Cable

Dowel

Cutout

Shaft hole

Scanner Unit

Middle Housing

4.3.5 Scanner Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60)

 Removal procedure

When removing the FFC and the cable from the connectors as shown below, make sure to pull up the cables from the connectors on the Main Board, otherwise, it may gets damaged.

1. Open the Scanner Unit to the full, disconnect the Scanner FFC and the Scanner Motor Cable from connectors J4, J5 on the Main Board.

2. Lift the left end of the Scanner Unit in the direction of arrow (1), then disengage the dowel from the cutout of the shaft hole in the Scanner Unit.

3. Pull the Scanner Unit in the direction of arrow (2) and disengage the dowel from the shaft hole, then remove the Scanner Unit from the Middle Housing.

Figure 4-13. Removing the Scanner Unit (2)

Figure 4-12. Removing the Scanner Unit (1)

Install the Scanner Unit as follows. (See Fig.4-13)

1. Insert the right Shaft Hole of the Scanner Unit to the right dowel of the Middle Housing aligning their shapes.

2. Insert the left dowel of the Lower Housing to the cutout of the left shaft hole on the Scanner Unit, and push the unit until the left dowel is secured into the shaft hole.

3. Connect the Scanner FFC and the Scanner Motor Cable to connectors J4, J5 on the Main Board.

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Lower Housing

Middle Housing

Rear Side

Hook

SCREW M3x10 P-TITE (5±0.5kgfcm)

Left Side

Hook A

Hook

Right Side

Hook

4.3.6 Middle Housing

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire(p 60), Scanner Unit (p 62), Panel Unit (p 64)

 Removal procedure

1. Remove the six screws.

2. Release the two hooks on the left, two hooks on the right, and the hook on the

rear (see

Fig.4-14), then remove the Middle Housing from the Lower Housing.

Figure 4-15. Removing the Middle Housing (2)

When installing the Middle Housing, first align the hook A on the front left, and then attach the housing. (See

Fig.4-15.)

Figure 4-14. Removing the Middle Housing (1)

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C A U T I O N

Panel Unit

Middle Housing

Positioning Hole

Hook

Panel Unit

Panel FFC

Panel Board

Positioning Hole

Hook

Panel Unit

SCREW M3x8 P-TITE (5±0.5kgfcm)

4.4 Removing the Circuit Boards

4.4.1 Panel Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60)

 Removal procedure

1. Open the Scanner Unit.

 Be careful when removing the Panel Unit, because the Main

Board and the Panel Board on the rear of the Panel Unit are connected with the Panel FFC.

 Be careful when carrying out the next procedure, because the

hook on the rear of the Panel Unit is fragile and easily gets damaged or softened.

2. Slide the Panel Unit back with lifting the rear side slightly. And remove the Panel Unit.

3. Disconnect the Panel FFC from connector J2 on the Main Board, and remove the Panel Unit.

Figure 4-17. Removing the Panel Unit (2)

 Disassembling the Panel Unit

 Panel Board

1. Remove the two screws that secure the Panel Board.

2. Release the two hooks, and remove the Panel Board from the Panel Unit.

Figure 4-18. Removing the Panel Board

Figure 4-16. Removing the Panel Unit (1)

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Button PowerButton OP LED Lens

Panel Cover

Dowel

Main Board

J3J6 J7

J2J4J5J8J9

 Buttons

1. Remove the Button Power and the Button OP from the Panel Cover.

2. Remove the LED Lens from the Panel Cover.

Figure 4-19. Removing the Buttons

 When installing the Panel Board, align the positioning hole of

the Panel Board with the dowels of the Panel Cover. (See

Fig.4-18)

 When installing the Panel Unit, align the positioning holes of the

Middle Housing with the dowels of the Panel Cover, then secure them with four hooks. (See

Fig.4-16, Fig.4-19.)

4.4.2 Main Board

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Hopper (p 72)

 Removal procedure

1. Remove all the cables and FFCs connected to the Main Board.

CN No

J2 Panel FFC --- Black 10

J3 Power Supply Unit cable Gray Brown 3

J4 Scanner FFC --- Black 12

J5 Scanner Motor Cable Black,Brown,

J6 PF Motor Cable Red,

J7 CR Motor Cable Gray,

J8 Head FFC --- Black 21

J9 FFC --- Black 17

Cable

Cable Color

Orenge,Yellow

Black

Connector

Color

White 4

White 2

Brown 2

Pins

Figure 4-20. Removing the Main Board (1)

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A D J U S T M E N T

R E Q U I R E D

PE Sensor Lever

Rib

PE Sensor

Shield Plate Main board

SCREW SEMS M2.6x3.5 PAN HEAD+ (7.5±0.5kgfcm)

Main Frame

Shield Plate

Power Supply Unit

Power Supply Unit cable

Main board

Lower housing

SCREW M3x8 P-TITE (5±0.5kgfcm) Rib

2. Remove the four screws that secure the Main Board.

3. Remove the Main Board and the Shield Plate with the PE Sensor Lever to the

ASF side as shown below.

Figure 4-21. Removing the Main Board (2)

 When installing the Main Board, keep the PE Sensor Lever

away (as shown in

Fig.4-21) to avoid getting broken.

 Before tightening the screws, make sure to insert the Main

Board to the rib of the Main Frame, and align the threaded hole of the Main Frame with the hole of the Main Board. (See

Fig.4-21.)

 Tighten the screws in the order indicated in Fig.4-21.  For the Shield Plate, hook its upper part to the Main Frame and

secure them as shown below.

4.4.3 Power Supply Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

1. Disconnect the connector of the Power Supply Unit Cable (J3) from the Main Unit and release the Power Supply Unit cable from the ribs of the Lower Housing.

2. Remove the screw that secures the Power Supply Unit.

3. Remove the Power Supply Unit from the Lower Housing.

Figure 4-23. Removing the Power Supply Unit

Figure 4-22. Installing the Main board

Whenever the Main Board Unit is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

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SCREW M3x8 P-TITE (5±0.5kgfcm)

Terminal

Grounding Wire

Power Supply Unit

A D J U S T M E N T

R E Q U I R E D

Dowel

Positioning Hole

Protrusion

Rib

4. Remove the screw that secures the Grounding Wire, and remove the Grounding Wire from the Power Supply Unit.

Figure 4-24. Removing the Power Supply Unit

 When installing the Grounding Wire, make sure that the

terminal of the Grounding Wire gets contact with the plate of the Power Supply Unit as shown in

Fig.4-24.

 Route the Power Supply Unit Cable through the two ribs of

the Lower Housing. (See

Fig.4-23.)

 When installing the Power Supply Unit, insert its protrusion to

the hole of the Lower Housing, and align the rib and dowel of the Lower Housing with the positioning hole of the Power Supply Unit.

Figure 4-25. Installing the Power Supply Unit

Whenever the Power Supply Unit is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

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Carriage Lock

Carriage Unit

Locked

Unlocked

Tab

FFC

Head FFC

FFC

CR Contact Module (CN1)

4.5 Disassembling the Printer Mechanism

4.5.1 Printhead

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

1. Release the Carriage Lock and move the Carriage to the center.

2. Release the FFC from the tabs of the Carriage.

Figure 4-27. Removing the Printhead (2)

3. Pull out the FFC from the connector of the CR Contact Module (CN1).

Figure 4-28. Removing the Printhead (3)

Figure 4-26. Removing the Printhead (1)

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Holder Contact Assy

Hook

C A U T I O N

FFC Cover

Rib

hook

SCREW P-TIGHT M2.6x8 BIND (4±0.25kgfcm)

Printhead

Head FFC

4. Release the two hooks on both sides of the Carriage with a flathead precision screwdriver or a similar tool, and remove the Holder Contact Assy upward as shown below.

5. Release the hook, and remove the FFC Cover.

Figure 4-30. Removing the Printhead (5)

Be careful not to touch the nozzles with bare hands or damage the ink supply needles of the Printhead.

6. Remove the three screws that secure the Printhead, and lift the Printhead with longnose pliers.

Figure 4-29. Removing the Printhead (4)

Figure 4-31. Removing the Printhead (6)

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Printhead

Head FFC

A D J U S T M E N T

R E Q U I R E D

Front

Contact Assys

Hook

Back

CR Contact Module

Holder Contact Assy

Hook

7. Remove the Head FFC from the connector of the Printhead, and remove the Printhead.

Figure 4-32. Removing the Printhead (7)

 When installing the Contact Assys, secure them to the Holder

Contact Assy with two each hooks on the Contact Assys.

Figure 4-33. Assembling the Holder Contact Assy (1)

 When installing the CR Contact Module, secure it with four

hooks of the Holder Contact Assy.

 When installing the FFC, route it through objects as shown in

Fig.4-27 and Fig.4-31.

 When installing the FFC Cover, insert its rib to the hole of the

CR Unit and secure it with the hook. (

See Fig.4-30.)

Figure 4-34. Assembling the Holder Contact Assy (2)

Whenever the Printhead is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

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C A U T I O N

Hook

CR Scale

CR Encoder Sensor

Slit

A D J U S T M E N T

R E Q U I R E D

Main Frame

Extension Spring

CR Scale

Rib

Hole

4.5.2 CR Scale

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

1. Release the Carriage Lock and move the Carriage to the center. (See "4.5.1

Printhead (p68)".)

 Do not touch the CR Scale with bare hands.  Do not damage the CR Scale.  Do not stretch the Extension Spring too much.

2. Remove the right side of the CR scale from the hook.

3. Pull out the CR Scale through the slit of the CR Encoder Sensor.

4. Detach the Extension Spring from the Main Frame.

5. Remove the CR Scale from the rib of the Main Frame.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 71

Figure 4-35. Removing the CR Scale (1)

Figure 4-36. Removing the CR Scale (2)

 When installing the CR scale, confirm that the arrows on both

the edges of the CR scale face upward.

 Make sure to put the CR scale through the slit of the CR

Encoder Sensor. (See

Fig.4-35.)

 Make sure to confirm that the Extension Spring is not twisted,

then install the eye of the spring to the hole of the Main Frame. (See

Fig.4-36.)

Whenever the CR Scale removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

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Hopper

Lower Housing

Compression Spring

Hook

A D J U S T M E N T

R E Q U I R E D

Hopper

Edge Guide

Hook

Rib

Compression Spring

4.5.3 Hopper

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

1. Release both the dowels that secure the Hopper, and remove the Hopper and the Compression Spring from the Lower Housing.

2. Release the hook that secures the Edge Guide, and remove the Hopper from the Edge Guide.

Figure 4-38. Removing the Edge Guide

When installing the Hopper, make sure to install the Compression Spring under the rib as shown below.

Figure 4-39. Assembling the Hopper

Whenever the Hopper is removed/replaced, the required adjustments must be carried out.

Figure 4-37. Removing the Hopper

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 72

• Chapter 5 “ ADJUSTMENT” (p.100)

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C A U T I O N

A D J U S T M E N T

R E Q U I R E D

Positioning Hole and Dowel

PF Encoder

PF Scale

PF Encoder FFC

Spur Gear

J11

Main Board

Double-sided Tape

M2x5 S-TIGHT BIND HEAD (3±0.25kgfcm)

EJ Frame Assy

Lower Housing

SCREW M3x8 P-TITE (5±0.5kgfcm)

4.5.4 PF Encoder/ PF Scale

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

1. Disconnect the PF Encoder FFC from connector J11 on the Main Board.

2. Remove the screw that secures the PF Encoder, and remove the PF Encoder.

 Do not touch the PF Scale with bare hands.  Do not damage the PF Scale.

3. Peel off the PF Scale secured with the double-sided tape from the Spur Gear.

4.5.5 EJ Roller/ EJ Frame Assy

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

1. Remove the two screws that secure the EJ Frame Assy, and remove the EJ Frame Assy from the Lower Housing.

Figure 4-40. Removing the PF Encoder/ PF Scale

 When installing the PF Encoder, be sure to align the dowels in

the rear side of the PF Encoder with the positioning holes of the PF Motor. (See

Fig.4-40.)

Figure 4-41. Removing the EJ Frame Assy

 When installing the PF Encoder, be sure to put the PF Scale

through the slit of the PF Encoder.

Whenever the PF Encoder/ PF Scale removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 73

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C A U T I O N

EJ Roller

EJ Roller Gear

Concave-convex section

EJ Roller

Bearing

A D J U S T M E N T

R E Q U I R E D

Wheel Star Metal

Hook

Wheel Star EXIT

Spring Star Wheel

Align the sides of the Wheel Star EXIT with the

dents of the EJ Frame Assy as shown, and secure

the Wheel Star EXIT with the hooks.

EJ Frame Assy

Put the Spring Star Wheel through the Wheel Star

Metal, and align them with the dents of the EJ Frame

Assy, then secure them with the hooks.

2. Insert a flathead precision screwdriver between the EJ Roller Gear and the rib of the EJ Roller, and remove the EJ Roller Gear by pushing it in the direction of the arrow.

Figure 4-42. Removing the EJ Roller (1)

Be careful not to touch the rubber part of the EJ Roller to avoid degrading the print quality.

 When installing the EJ Roller Gear, be sure to align the concave

section of the EJ Roller Gear with the convex section of the EJ Roller, then secure them. (See

Fig.4-42.)

 When replacing the Wheel Star Metal, Spring Star Wheel, and

Wheel Star EXIT, install them in the direction as shown below, and secure them with the hooks of EJ Frame Assy.

3. Remove the EJ Roller by pushing the bearing on the right side of the Lower Housing in the direction of the arrow.

Figure 4-44. Assembling the EJ Frame Assy

 Whenever the EJ Roller is removed/replaced, the required

adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

 After replacing the EJ roller, be sure to perform the required

Figure 4-43. Removing the EJ Roller (2)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 74

lubrication.

• Chapter 6 “ MAINTENANCE” (p.108)

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C A U T I O N

Main Board

CR Motor Cable

CR Motor

Lower Housing

Hook

Groove

Main Frame

SCREW SEMS M2.6x3.5 PAN HEAD+ (3.5±0.5kgfcm)

Pinion Gear

Timing Belt

TBD

Compression Spring

Driven Pulley

Timing Belt

4.5.6 CR Motor/ Driven Pulley

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64)

 Removal procedure

 Be careful not to break the soldered portion of the CR Motor.  When removing the CR Motor and Driven Pulley, make sure to

hold the Timing Belt somehow so as not to allow the grease of Main Frame to come in contact with the Timing Belt. It may damage the Timing Belt.

 Be careful not to lose the Compression Spring when removing

the Driven Pulley Holder.

 Do not damage the Pinion Gear of the CR Motor.  Be careful not to contaminate the CR scale with grease.

1. Disconnect the CR Motor Cable from connector J7 on the Main Board, and release it from the Lower Housing.

2. Release the Carriage Lock, and move the CR Unit to the center. (See "4.5.1

Printhead (p68)".)

3. Loosen the tension of the Timing Belt by pressing the Driven Pulley Holder in

the direction of the arrow, and remove the Timing Belt from the Pinion Gear of the CR Motor.

4. Remove the Driven Pulley Holder and Compression Spring from the Main Frame.

5. Remove the two screws that secure the CR Motor, and remove the CR Motor from the Main Frame.

Figure 4-45. Removing the CR Motor (1)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 75

Figure 4-46. Removing the CR Motor (2)

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CR Motor

Groove

Soldered Portions

A D J U S T M E N T

R E Q U I R E D

Main Frame

Hole

Driven Pulley

Hook

 Route the CR Motor cable through the four hooks and the two

grooves of the Lower Housing with some slack to prevent breaking the soldered portions. (See

Fig.4-45.)

 Be sure to install the CR Motor with the groove facing upward.

Figure 4-47. Installing the CR Motor

When installing the Timing Belt to the Pinion Gear of the CR Motor follow the procedure below taking care not to twist the Timing Belt.

1. Align the hooks of the Driven Pulley with the hole of the Main Frame, and install the Driven Pulley to the Main Frame.

2. Attach the Timing Belt to the Driven Pulley with toothed side facing inward. (See

Fig.4-46

3. Install the Compression Spring between the protrusion of the Driven Pulley and that of the Main Frame. (See

Fig.4-46

4. Slide the Driven Pulley to the CR Motor (in the direction of the arrow) taking care not to let the Timing Belt come off, and install the Timing Belt to the Pinion Gear of the CR Motor. (See

Fig.4-46

Figure 4-48. Installing the Driven Pulley

 Whenever the CR Motor is removed/replaced, the required

adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

 After replacing the Driven Pulley, be sure to perform the

required lubrication.

• Chapter 6 “ MAINTENANCE” (p.108)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 76

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C A U T I O N

Cleaner Case Spring

Cleaner Lever Spring

Cap Assy

Hole

Lever Cleaner

Protrusion A

Pump Assy

Hook

Protrusion B

Cap Assy

Pump Assy

Protrusion C

4.5.7 Ink System

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), CR Motor/ Driven Pulley (p 75)

 Removal procedure

 Be careful not to contaminate the surroundings with ink.  Do not bend the Spring Cleaner Lever and the Cleaner Case

Spring.

 Do not touch the Sealing Rubber, the Blade Wiper or the Felt

Wiper with bare hands or damage them.

 Cap Assy

1. Remove the Cleaner Lever Spring.

2. Remove the Cleaner Case Spring.

3. Insert a flathead precision screwdriver between the Lower Housing and the

Pump Assy and push it in the direction of the arrow to release the hook.

Figure 4-50. Removing the Cap Assy (2)

Move the Pump Assy to the ASF slightly, and remove the protrusion B of the Cap Assy.

5. Remove the two protrusion Cs of the Pump Assy from the Lower Housing.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 77

Figure 4-49. Removing the Cap Assy (1)

Figure 4-51. Removing the Cap Assy (3)

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Cap Assy

Ink Tube

Point A

Duct Tube End

Ink Tube

ASF Unit

Holder Tube

Hook

Point D

Pump Assy

Hook

Pump Assy

6. Pull out the Waste Ink Tube through the rear of the Cap Assy, and remove the Cap Assy.

Figure 4-52. Removing the Cap Assy (4)

 Pump Assy

1. Pull out the Waste Ink Tube together with the Holder Tube through the Waste Ink Cover.

2. Release the Waste Ink Tube from the hook of the ASF Unit.

3. Release the two hooks, and remove the Pump Assy from the Lower Housing.

Figure 4-54. Removing the Pump Assy (2)

 When installing the Cleaner Lever Spring, insert the longer

end of the spring into the Lower Housing, and secure it to the protrusion A of the Cleaner Lever attached through the hole of the Lower Housing. (See

Fig.4-49.)

Figure 4-53. Removing the Pump Assy (1)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 78

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A D J U S T M E N T

R E Q U I R E D

Ink Tube

Holder Tube

Point E

Rib

Ink Tube

C A U T I O N

Case Cleaner

Foam Cap Side

Felt Wiper

Blade Wiper

IS Cap Assy

Hook

 When routing the Ink Tube, confirm the following.

• Insert point A of the tube carefully into the Cap Assy not to let

it pressed. (See

• Align point D with the right edge of the hook on the ASF Unit,

then secure it. (See

•

Insert the Holder Tube up to point E as shown below, and insert the holder into the Duct Tube End. (See

Fig.4-52, Fig.4-63)

Fig.4-53, Fig.4-63)

Fig.4-53, Fig.4-63

)

Figure 4-55. Installing the Pump Assy (1)

• Route the Waste Ink Tube through the ribs of the Lower

Housing as shown below.

DISASSEMBLING THE CAP ASSY

 Disassembly Procedure

Do not contaminate or damage the Sealing Rubber, Blade Wiper, and Felt Wiper.

1. Remove the Foam Cap Side from the Case Cleaner.

2. Release the two hooks of the IS Cap Assy, and remove the Blade Wiper and

Felt Wiper.

Figure 4-57. Disassembling the Cap Assy (1)

Figure 4-56. Installing the Pump Assy (2)

Whenever the Ink System removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 79

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Back

Hook

Rib

IS Cap Assy

Case Cleaner

Dowel

IS Cap Assy

Cleaner Cap Spring

Case Cleaner

Ribs of Foam Cap Side

Dowel

Positioning Hole

Dowel

Felt Wiper

Blade Wiper

3. Release the two hooks of the IS Cap Assy by rotating it to the direction of arrow pulling out the central rib of the assy., and remove the IS Cap Assy from the Case Cleaner.

Figure 4-58. Disassembling the Cap Assy (2)

4. Remove the Cleaner Cap Spring from the dowels of the IS Cap Assy.

 When installing the Foam Cap Side, align the notchs of the

Foam Cap Side with the ribs of the Case Cleaner them without any gap.

(See Fig.4-60.)

, and insert

 When installing the IS Cap Assy, install the Cleaner Cap Spring

to the dowels of the Case Cleaner.

Figure 4-60. Assembling the Cap Assy (1)

 When installing the Blade Wiper and the Felt Wiper, align the

dowels of the Blade Wiper with the positioning holes of the Felt Wiper.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 80

Figure 4-59. Disassembling the Cap Assy (3)

Figure 4-61. Assembling the Cap Assy (2)

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Pump Housing

Hook Gear Pump Idle

Gear Pump

Bracket Pump

Roller Pump

Bracket Pump

Inside

Ink Tube

A B C D E

10±1mm

45±1mm126±1mm 108±1mm

Point B

Make sure of the red line of the tube is as shown.

Pump Housing

Ink Tube

DISASSEMBLING THE PUMP ASSY

 Disassembly Procedure

1. Release the hook of the Pump Housing and remove the Gear Pump Idle.

2. Remove the Gear Pump and Bracket Pump from the Pump Housing.

3. Remove the Roller Pump from the Bracket Pump.

4. Remove the Waste Ink Tube from the Pump Housing.

When assembling the Pump Assy, follow the instructions below.

1. Mark five points on the Ink Tube as shown below.

Figure 4-63. Marking on the Ink Tube

2. Secure point B of the tube to the Pump Housing as shown below.

Figure 4-62. Disassembling the Pump Assy

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 81

Figure 4-64. Assembling the Pump Assy (1)

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Point C

Pump Housing

Ink Tube

Roller Pump shaft

Bracket Pump shaft

Groove

Bracket Pump

Ink Tube

PF Motor cable

PF Motor

Rib

Ferrite Core

Grounding Spring

Bracket

Hole

Tip of the Grounding

Spring

PF Roller

Hook

3. Secure point C of the tube to the Pump Housing as shown below.

Figure 4-65. Assembling the Pump Assy (2)

4. Install the Roller Pump to the Bracket Pump. (See Fig.4-62.)

5. Set the tube inside the Bracket Pump, and install the Bracket Pump to the Pump Housing.

6. Rotate the Bracket Pump shaft and make sure that the Roller Pump shalt moves to both ends in the Groove.

4.5.8 PF Motor

 Parts/Components need to be removed in advance:

Scanner Stand/ Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Hopper (p 72), Main Board (p 65)

 Removal procedure

1. Pull out the PF Motor cable and the Ferrite Core from the hole of the Lower Housing to release them.

Figure 4-67. Removing the PF Motor (1)

2. Remove the Grounding Spring from the hook of the Main Frame and the Bracket.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 82

Figure 4-66. Assembling the Pump Assy (3)

7. Make sure that point C is placed in the correct position. (See

Fig.4-65.)

8. Install the Gear Pump. (See Fig.4-62.)

9. Install the Gear Pump Idle. (See Fig.4-62.)

Figure 4-68. Removing the PF Motor (2)

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C A U T I O N

Positioning Hole and Dowel

Bracket

PF Motor

PF Roller Gear

Pinion Gear

SCREW M3x8 P-TITE (5±0.5kgfcm)

Screw it with the Grounding Wire.

A D J U S T M E N T

R E Q U I R E D

PF Motor

Bracket

Pinion Gear

SCREW SEMS M2.6x3.5 PAN HEAD+ (3.5±0.25kgfcm)

Notch

 Do not damage the PF Roller Gear.  Do not damage the Pinion Gear.  Be careful of not to break the soldered portions.

3. Remove the screw that secures the Bracket.

4. Release the Bracket from the dowels of the Lower Housing, and remove the

Bracket and the PF Motor while pulling out the PF Motor Cable (see

Fig.4-67.) through the hole of the Lower Housing.

Figure 4-69. Removing the PF Motor (3)

5. Remove both the screws that secure the PF Motor.

6. Remove the PF Motor pulling out the shaft of the motor through the notch of

the Bracket.

Figure 4-70. Removing the PF Motor (4)

 When installing the PF Motor, insert the black cable over the

red one. (See

Fig.4-70.)

 Install the Grounding Spring as follows: (See Fig.4-68.)

1. Insert the tip of the spring to the hole of the Lower Housing.

2. Attach the eyes of the spring to the hook of the Main Frame

and that of the Bracket to secure it.

 Before securing the Bracket, align the four positioning holes of

it with the four dowels of the Lower Housing. (See

Fig.4-69.)

 Don not damage the PF Roller Gear and the Pinion Gear.  Route the PF Motor Cable following the procedure below. (See

Fig.4-67.)

1. When pulling out the cable from the hole of the Lower

Housing, give the cable some slack to prevent breaking the soldered portions.

2. Route the cable through the rib.

Whenever the PF Motor removed/replaced, the required

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 83

adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

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C A U T I O N

Extension Spring

SCREW SEMS M2.6x3.5 PAN HEAD+

Bracket

Front

Upper/lower hook and hole

Central hook

4.5.9 Main Frame

 Parts/Components need to be removed in advance:

Scanner Stand/ Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Hopper (p 72), Main Board (p 65) CR Motor/ Driven Pulley (p 75), Ink System (p 77), PF Encoder/ PF Scale (p 73)

 Removal procedure

 Be cautious not to touch the LD Roller and the roller part of the

Upper Paper Guide with bare hands to avoid degrading the print quality.

 Be careful not to deform the Extension Spring when removing

it.

1. Remove the Grounding Spring. (See "4.5.8 PF Motor (p82)".)

2. Remove the five Extension Springs.

3. Remove the screw that secures the Bracket.

Figure 4-72. Removing the Main Frame (2)

4. From the front of the Main Frame, release the central hook in the Bracket with the flathead precision screwdriver.

5. Move the Bracket in the direction of the arrow to release the upper hook and the lower one of the Bracket from the hole of the Main Frame, then remove the Bracket.

Figure 4-71. Removing the Main Frame (1)

Figure 4-73. Removing the Main Frame (3)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 84

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Rear Left

Positioning Hole and Dowel

Rib and Groove

Hook of ASF Unit

SCREW M3x8 P-TITE (5±0.5kgfcm) SCREW S-TIGHT M3x6 (7.5±0.5kgfcm)

Screw it with the Grounding Wire.

Front Right

Lever Pick Clutch

C A U T I O N

A D J U S T M E N T

R E Q U I R E D

Main Frame

LD Roller Shaft

Upper Paper Guide

Carriage

6. Remove the four screws that secure the Main Frame to the Lower Housing.

 Do not damage the PF Scale and the Lever Pick Clutch with the

Main Frame.

 After removing the Main Frame, do not lay it with the Driven

Roller of the Upper Paper Guide facing downward.

7. Remove the Main Frame, the Carriage, and the Upper Paper Guide from the Lower Housing following the procedure below. (See

Fig.4-74, Fig.4-75.)

1.Lift the Main Frame until the dowel and the rib that secure the Main Frame

comes off.

2.Rotate the Main Frame in the direction of the arrow and remove it not to

interfere the Upper Paper Guide with the LD Roller Shaft.

Figure 4-75. Removing the Main Frame (5)

 When installing the Main Frame, align it with the following

parts, and secure it with the screws. (See

• The two ribs of the frame and the two grooves of the Lower

Fig.4-74.)

Housing

• The two positioning holes on the lower side of the frame and the

two dowels of the Lower Housing

• The hook of the ASF Unit and the hole of the Main Frame

above the Lever Pick Clutch

Whenever the Main Frame is removed/replaced, the required adjustments must be carried out.

Figure 4-74. Removing the Main Frame (4)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 85

• Chapter 5 “ ADJUSTMENT” (p.100)

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C A U T I O N

Main Frame

Upper Paper Guide

Hook

A D J U S T M E N T

R E Q U I R E D

PE Sensor Lever

Upper Paper Guide

Hole

Bearing

4.5.10 Upper Paper Guide

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing(p 63) Panel Unit (p 64), Hopper (p 72), Main Board (p 65) CR Motor/ Driven Pulley (p 75), Ink System(p 77), PF Encoder/ PF Scale(p 73) Main Frame (p 84)

 Removal procedure

 Be careful not to touch the roller part of the Upper Paper Guide

with bare hands to avoid degrading the print quality.

 Do not lay the Upper Paper Guide with the rollers facing

downward.

1. Release the six hooks, and remove the Upper Paper Guide from the Main Frame.

When replacing the PE Sensor Lever, put the long leg of the lever through the hole of the Upper Paper Guide, and secure the thin part of the lever to the bearing of the Upper Paper Guide.

Figure 4-77. Installing the PE Sensor Lever

Whenever the Upper Paper Guide is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

Figure 4-76. Removing the Upper Paper Guide

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 86

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FFC

Holder FFC

Main Frame

CR Unit

Main Frame

Hole

Head FFC

Carriage

CR Encoder Connector

CR Encoder FFC

Rib

4.5.11 CR Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Printhead (p 68), CR Motor/ Driven Pulley (p 75) Ink System (p 77), Hopper (p 72), Main Board (p 65)

 Removal procedure

1. Release the FFC from the Holder FFC, and pull out the FFC through the hole of the Main Frame.

2. Remove the Main Frame. (See "4.5.9 Main Frame (p84)".)

3. Slide the CR Unit in the direction of the arrow, and remove it from the Main

Frame.

Figure 4-79. Removing the CR Unit (2)

4. Remove the CR Encoder FFC from the CR Encoder Connector.

5. Pull out the Head FFC through the hole of the Carriage, and remove the Head

FFC.

Figure 4-78. Removing the CR Unit (1)

Figure 4-80. Removing the CR Unit (3)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 87

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CR Sensor Assy

Backside of Carriage

Timing Belt

Toothed rib

of Carriage

Positioning Hole and Dowel

M2x6 P-TIGHT BIND HEAD (3±0.25kgfcm)

FFC

CR Encoder FFC

Head FFC

Insert the protrusion of the plate to the hole of the Carriage, then align

the dowels of the Carriage with the

positioning holes of the plate.

Grounding Plate

Guide Carriage

Compression Spring

Protrusion

Compression Spring

Secure two hooks of the Guide Carriage by

attaching them on the two holes of the Carriage.

6. Remove the two screws that secure the CR Encoder Board, and remove the CR Encoder Board from the Carriage.

7. Remove the Timing Belt from the Carriage.

 When installing the FFC to the Carriage, route the FFC as

shown below.

Figure 4-82. Installing the CR Unit (1)

 When replacing the Grounding Plate, Guide Carriage and

Compression Spring, install them as shown below.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 88

Figure 4-81. Removing the CR Unit (4)

 Align the toothed side of the Timing Belt with the same shaped

rib of the Carriage without any twist. (See

 Before installing the CR Encoder Board, align the dowels of

the Carriage with the positioning holes of the CR Encoder Board.

 Route the CR Encoder FFC through the rib as shown in

Fig.4-80.

Fig.4-81.)

Figure 4-83. Installing the CR Unit (2)

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Holder FFC

FFC

Hole

Rib B Rib A

A D J U S T M E N T

R E Q U I R E D

Rib A

FFC

Rib A

Head FFC

 Install the FFC according to the following procedures.

1. Lead the FFC through the hole of the Holder FFC and

Main Frame.

Figure 4-84. Installing the CR Unit (3)

2. Secure the FFC with rib A and rib B.

3. Fold back the FFC and secure it with rib A again.

Figure 4-86. Installing the CR Unit (5)

4. Fold back only the Head FFC and secure it with rib A again.

5. Connect the FFC to the Main Board (J8, J9).

Figure 4-87. Installing the CR Unit (6)

Whenever the CR Unit is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

Figure 4-85. Installing the CR Unit (4)

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C A U T I O N

Cover Flashing

PF Roller Assy

SCREW M3x8 P-TITE

A D J U S T M E N T

R E Q U I R E D

Cover Flashing

PF Roller

Hole

Ribs on the rear of the Cover

Hook

Ribs on the rear of the Cover

Rib

Groove of the PF Roller Shaft and rib of the Lower Housing

4.5.12 PF Roller

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Main Board (p 65), EJ Roller/ EJ Frame Assy (p 73) CR Motor/ Driven Pulley (p 75), Ink System (p 77), Main Frame(p 84)

 Removal procedure

Be careful not to touch the coating part of the PF Roller with bare hands or damage it to avoid degrading the print quality.

1. Remove the screw and then remove the Cover Flashing.

2. Remove the PF Roller Assy from the Lower Housing.

 Before installing the PF Roller, align the groove of the PF Roller

Shaft with the rib of the Lower Housing. (See

Fig.4-89.)

 Install the Cover Flashing following the procedure below.

1. Insert the hook of the Cover Flashing through beneath the

PF Roller into the hole of the Lower Housing.

2. Align each groove on the ribs on the rear of the cover with

the ribs of the Lower Housing, and secure it with the screw.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 90

Figure 4-88. Removing the PF Roller Assy

Figure 4-89. Installing the Cover Flashing

Whenever the PF Roller is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

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C A U T I O N

ASF Unit

Flat part

LD Roller

Shaft Hole

LD Roller Assy

Tweezers

Paper Back Lever

Lever Pick Clutch

ASF Unit

Positioning Hole and Dowel

Hook

SCREW M3x10 P-TITE (5±0.5kgfcm)

Retard Roller Assy

Extension Spring

ASF Housing

4.5.13 LD Roller/ ASF Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Hopper (p 72), Main Board (p 65) CR Motor/ Driven Pulley (p 75), Ink System(p 77), PF Encoder/ PF Scale(p 73) Main Frame (p 84)

 Removal procedure

Be careful not to touch the LD Roller Assy and the roller part of the Retard Roller Assy with bare hands to avoid degrading the print quality.

1. Rotate the LD Roller Assy until the flat part of the LD Roller Assy faces upward.

2. Hold the Paper Back Lever outward using tweezers as shown below.

3. Remove the LD Roller Assy from the ASF Unit Shaft Hole while opening the

Lever Pick Clutch as shown below.

4. Remove the three screws that secure the ASF Unit.

5. Release the hook and remove the ASF Unit from the Lower Housing.

Figure 4-91. Removing the ASF Unit

6. Remove the Extension Spring at the bottom of the Retard Roller Assy.

7. Remove the Retard Roller Assy from the ASF Housing.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 91

Figure 4-90. Removing the LD Roller Assy

Figure 4-92. Removing the Retard Roller Assy

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Hook

Combination Gear

Lever Pick Clutch

ASF Housing

Change Lever

RearRibs

Lever Idle Gear

Lever Clutch Spring

Cam Face of the Paper Back Lever

Cam Face of the LD Roller Assy

LD Roller

LD Roller Assy

Paper eject side

Paper feed side

8. Release the hook of the Combination Gear, and remove the gear from the ASF Housing.

9. Remove the Lever Pick Clutch from the ASF Housing.

Figure 4-93. Removing the Lever Pick Clutch

10. Disengage the Lever Clutch Spring from the ribs of the Change Lever, and remove the Lever Clutch Spring.

11. Remove the Lever Idle Gear from the Change Lever.

 When installing the ASF Unit, insert the guide pin of the Lower

Housing to the positioning hole of the unit, and secure the unit with the hook of it and the three screws. (See

Fig.4-91.)

 When installing the LD Roller Assy and the ASF Unit, make

sure to engage the cam face of the LD Roller Assy and that of the Paper Back Lever.

Figure 4-95. Installing the ASF Unit

 When installing the LD Roller to the LD Roller Assy, make sure

to attach it with the arrow inside as shown below.

Figure 4-94. Removing the Change Lever

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 92

Figure 4-96. Assembling the LD Roller Assy (1)

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A D J U S T M E N T

R E Q U I R E D

LD Roller Shaft

Guide pin

Extension Spring

Clutch

Hook

LD Roller

Positioning hole

Combination Gear

Retard Roller

Retard Roller Assy

Feeding paper side

Ejecting paper side

Waste Ink Pads (A-F)

Rib

Lower Housing

 Assemble the LD Roller Assy following the procedure below.

1. Install the Clutch while aligning the guide pin of the LD

Roller Shaft with the hole of the Clutch.

2. Install the Extension Spring between the hook of the LD

Roller Shaft and that of the Clutch.

3. Install the Combination Gear to the LD Roller Shaft.

Figure 4-97. Assembling the LD Roller Assy (2)

 When installing the Retard Roller to the Retard Roller Assy,

make sure to attach it with the arrow inside as shown below.

4.5.14 Waste Ink Pads

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire(p 60), Scanner Unit (p 62), Middle Housing (p 63) Panel Unit (p 64), Main Board (p 65), EJ Roller/ EJ Frame Assy (p 73) CR Motor/ Driven Pulley (p 75), Ink System (p 77), Main Frame (p 84) PF Roller (p 90), LD Roller/ ASF Unit (p 91)

 Removal procedure

1. Remove the Waste Ink Pads (A - F) from the Lower Housing.

Whenever the ASF Unit is removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 93

Figure 4-98. Assembling the Retard Roller Assy

Figure 4-99. Removing the Waste Ink Pads

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Diffusion Sheet

Duct Tube End

Parts in section B

Notch

Dowel

Notch

Parts in section C

Double-sided

Tape

Double-sided

Tape

Lower Housing

 When installing the Waste Ink Pads, align the ribs of the Lower

Housing with the notches of the Waste Ink Pads. (See

Fig.4-99.)

 When installing the Diffusion Sheet in the section B, install the

Waste Ink Cover and the Waste Ink Pads (x3) in the order shown below.

Figure 4-100. Installing the Waste Ink Pads (1)

 When installing the Diffusion sheet and the Waste Ink Cover in

the section B, be sure to align their dowels with the positioning holes of the Lower Housing, then secure them without any gap.

 Install the Waste Ink Pads (x2) in the section C in the order

shown below.

 Put double-sided tape (8mm x 30mm) on the Lower Housing as

shown below to secure the Waste Ink Pad A, B and the Waste Ink Pad E on the 0-column side.

• Waste Ink Pad A: 2 points ( )

• Waste Ink Pad B and Waste Ink Pad E on the 0-column side

together: 1 point (

)

Figure 4-102. Installing the Waste Ink Pads (3)

 When installing the Waste Ink Pad E, align it to the surface of

the Lower Housing not to let the pads protrude.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 94

Figure 4-101. Installing the Waste Ink Pads (2)

Figure 4-103. Installing the Waste Ink Pads (4)

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A D J U S T M E N T

R E Q U I R E D

Lower Housing

 When installing the Waste Ink Pad D, make sure to fit it evenly

1.5mm lower than the platen surface of the Lower Housing.

 If the Lower Housing is contaminated with the liquid of the

Waste Ink Pad D, make sure to wipe it off with alcohol.

Figure 4-104. Installing the Waste Ink Pads (5)

Whenever the Waste Ink Pads removed/replaced, the required adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.100)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 95

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C A U T I O N

C H E C K

P O I N T

Driven Pulley

Spacer

SCREW M3x10 P-TITE

Rear side

Hook

Upper Scanner Housing

4.6 Disassembling the Scanner Unit

4.6.1 Upper Scanner Housing

 Parts/Components need to be removed in advance:

Document Cover/ASF Cover (p 59), Scanner Unit (p 62)

 Removal procedure

 Following work should be performed in a room where there is a

little dust. A clean room or a clean bench would be preferable.

 Do not scratch the Rod Lens Array when removing the CIS

Assy.

If the Spacer or the Driven Pulley comes off when disassembling the Scanner Unit, make sure to assemble the part referring to and Fig.4-113.

1. Remove the five screws that secure the Upper Scanner Housing and the eight hooks inside the Lower Scanner Housing, and remove the Upper Scanner Housing.

Fig.4-105

Figure 4-106. Removing the Upper Scanner Housing

Figure 4-105. Installing the Spacer or the Driven Pulley

When assembling the Upper Scanner Housing, confirm that the Spacer is attached correctly. (See

DISASSEMBLY/ASSEMBLY Disassembling the Scanner Unit 96

Fig.4-105 and Fig.4-113.)

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C A U T I O N

Rod Lens Array

Scanner Carriage Unit

Spacers

C A U T I O N

Scanner Timing Belt

Driven Pulley

Rail of the Lower Scanner Housing

Combination Gear

Double-sided Tape

Scanner Carriage FFC

Scanner Carriage Unit

Connector of CIS Unit

4.6.2 Scanner Carriage Unit

 Parts/Components need to be removed in advance:

Document Cover/ASF Cover (p 59), Scanner Unit (p 62) Upper Scanner Housing (p 96)

 Removal procedure

Do not scratch the Rod Lens Array when removing the Scanner Carriage Unit.

Figure 4-107. Handling the Scanner Carriage Unit

1. Move the Scanner Carriage Unit to the center.

2. Remove the two Spacers from the Scanner Carriage Unit.

Take extra care not to contaminate the Scanner Timing Belt with grease on the rail of the Lower Scanner Housing.

3. Loosen the Scanner Timing Belt by pressing the Driven Pulley in the direction of the arrow, and remove the Scanner Timing Belt from the Combination Gear and Driven Pulley.

Figure 4-109. Removing the Scanner Carriage Unit (1)

Be careful about the double-sided tape fixing the Scanner Carriage FFC.

4. Peel off the Scanner Carriage FFC from the Scanner Carriage Unit, and remove the Scanner FFC from the connector of the CIS Unit.

5. Remove the Scanner Carriage Unit together with the Scanner Timing Belt.

DISASSEMBLY/ASSEMBLY Disassembling the Scanner Unit 97

Figure 4-108. Moving the Scanner Carriage Unit

Figure 4-110. Removing the Scanner Carriage Unit (2)

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CIS Unit

Shaft and Shaft hole

Scanner CR Holder

CIS Spring

Dowel

Spacer

6. Disengage the shafts on both ends of the CIS Unit from the bearing holes of the Scanner CR Holder, and remove the unit.

Figure 4-111. Removing the CIS Unit

 Install the CIS springs (x2) to the dowels of the Scanner CR

Holder. (See

Fig.4-112.)

Figure 4-112. Installing the CiS Spring

 When installing the spacers, be sure to place them with the

cutout facing inward. (See

Fig.4-113.)

Figure 4-113. Replacing the Spacers

DISASSEMBLY/ASSEMBLY Disassembling the Scanner Unit 98

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Scanner Motor Unit

Scanner Motor cable

SCREW S-TIGHT M3x5 BIND

Positioning hole and dowel

Protrusion

Rib

4.6.3 Scanner Motor Unit

 Parts/Components need to be removed in advance:

Document Cover/ASF Cover (p 59), Scanner Unit (p 62) Upper Scanner Housing (p 96)

 Removal procedure

1. Move the Scanner Carriage Unit to the center.

(Refer to 4.6.2 Scanner Carriage Unit Step1 (p97))

2. Loosen the Scanner Timing Belt by pressing the Driven Pulley and remove

the Scanner Timing Belt from the Combination Gear and the Driven Pulley.

(Refer to 4.6.2 Scanner Carriage Unit Step3 (p97))

3. Release the Scanner Motor cable from the ribs at the bottom of the Scanner

Housing.

4. Remove the two screws that secure the Scanner Motor Unit, and remove the Scanner Motor Unit.

 When installing the Scanner Motor Unit, align each dowel at

the bottom of the Scanner Housing with their positioning holes of the Scanner Motor Unit. (See

Fig.4-114.)

 Route the Scanner Motor cable through the three ribs and the

two protrusions at the bottom of the Scanner Housing. (See

Fig.4-114.)

DISASSEMBLY/ASSEMBLY Disassembling the Scanner Unit 99

Figure 4-114. Removing the Scanner Motor Unit

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ADJUSTMENT

CHAPTER

Confidential

Epson Stylus NX100, Stylus NX105, Stylus SX100, Stylus SX105, Stylus TX100 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

1.3.1 Scanning Range

1.4 General Specifications

1.4.1 Electrical Specifications

1.4.2 Environmental Conditions

1.4.3 Durability

1.4.4 Acoustic Noise

1.4.5 Safety Approvals (Safety standards/EMI)

1.5 Interface

1.5.1 USB Interface

1.6 Control Panel

1.6.1 Operation Buttons & LEDs

1.6.2 Control Panel Functions

1.7 Stand-alone Copy Function

1.7.1 Supported Paper and Copy Mode

1.7.2 Setting for Stand-alone Copy

1.7.3 Copy Speed

1.7.4 Multiple Copying

OPERATING PRINCIPLES

2.1 Overview

2.1.1 Printer Mechanism

2.1.2 Motors & Sensors

2.1.3 Printhead

TROUBLESHOOTING

3.1 Overview

3.1.2 Preliminary Checks

3.1.1 Specified Tools

3.2 Error Indications and Fault Occurrence Causes

3.2.1 Troubleshooting by Error Message

3.2.2 Superficial Phenomenon-Based Troubleshooting

3.2.3 Motor and Sensor Troubleshooting

DISASSEMBLY/ASSEMBLY

4.1 Overview

4.1.1 Precautions

4.1.2 Tools

4.1.3 Work Completion Check

4.2 Disassembly Procedures

4.3 Removing the Housing

4.3.1 Paper Support Tray

4.3.2 Stacker Assy

4.3.3 Document Cover/ASF Cover

4.3.4 Scanner Stand /Cover Wire

4.3.5 Scanner Unit

4.3.6 Middle Housing

4.4 Removing the Circuit Boards

4.4.1 Panel Unit

4.4.2 Main Board

4.4.3 Power Supply Unit

4.5 Disassembling the Printer Mechanism

4.5.1 Printhead

4.5.2 CR Scale

4.5.3 Hopper

4.5.4 PF Encoder/ PF Scale

4.5.5 EJ Roller/ EJ Frame Assy

4.5.6 CR Motor/ Driven Pulley

4.5.7 Ink System

4.5.8 PF Motor

4.5.9 Main Frame

4.5.10 Upper Paper Guide

4.5.11 CR Unit

4.5.12 PF Roller

4.5.13 LD Roller/ ASF Unit

4.5.14 Waste Ink Pads

4.6 Disassembling the Scanner Unit

4.6.1 Upper Scanner Housing

4.6.2 Scanner Carriage Unit

4.6.3 Scanner Motor Unit

ADJUSTMENT