Epson Stylus TX110, Stylus TX111, Stylus TX112, Stylus TX113, Stylus TX115 Service Manual

SERVICE MANUAL

Color Inkjet Printer

Epson Stylus TX110/TX111/TX112/TX113/

TX115/TX117/TX119/NX110/
NX115/SX110/SX115

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.

Confidential

Revision Status

Revision Date of Issue Description

A June 27, 2008 First Release

B October 3, 2008 [Chapter 5]

• “5.1.1 Servicing Adjustment Item List” on page 110.

Table 5-1 “Adjustment Items”, Table 5-2 “Maintenance Items” and Table 5-3 “Additional Functions” were revised.

• “5.1.2 Required Adjustments” on page 112.

Table 5-4 “Required Adjustment List” was revised.

• “5.2.1 TOP Margin Adjustment” on page 114.
Description was revised.

• “5.2.2 First Dot Position Adjustment” was deleted.

C May 7, 2009 Revised Contents

[All chapters]

• Epson Stylus NX110/NX115/SX110/SX115/TX110/TX111/TX112/TX113/TX115/TX117/TX119 were added.

[Chapter 1]

• “1.1 Features” on page 10 was revised.

• “1.2.2 Ink Cartridge” on page 11 was revised.

• “1.2.3 Print Mode” on page 12 was revised.

• “1.2.4 Supported Paper” on page 14 was revised.

• “1.3 Scanner Specifications” on page 16 was revised.

• “1.4.1 Electrical Specifications” on page 18 was revised.

• “1.4.4 Acoustic Noise” on page 19 was revised.

• “1.4.5 Safety Approvals (Safety standards/EMI)” on page 19 was revised.

• “1.5.1 USB Interface” on page 20 was revised.

• “1.6.1 Operation Buttons & LEDs” on page 21 was revised.

• “1.6.2 Control Panel Functions” on page 22 was revised.

• “1.7.1 Supported Paper and Copy Mode” on page 25 was revised.

• “1.7.2 Setting for Stand-alone Copy” on page 25 was revised.

• “1.7.3 Copy Speed” on page 26 was revised.

• “1.7.4 Multiple Copying” on page 26 was revised.

[Chapter 2]

• “2.2 Power-On Sequence” on page 31 was added.

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Revision Date of Issue Description

C May 7, 2009 [Chapter 4]

• “4.1.4 Procedural Differences” on page 63 was added.

• “4.3.2 Stacker Assy/ Ink Tube Cover” on page 65 was revised.

• “4.4.1 Panel Unit” on page 71 was revised.

• “4.4.3 Power Supply Unit” on page 73 was revised.

• “4.5.5 EJ Roller/ EJ Frame Assy” on page 80 was revised.

• “4.5.9 Main Frame” on page 91 was revised.

• “4.7 Disassembly/reassembly procedures of NX110 series” on page 107 was added.

[Chapter 6]

• “6.1.3 Lubrication” on page 119 was revised.

D June 17, 2009 Revised Contents

[Chapter 1]

• “1.7.3 Copy Speed” on page 26 was revised.

[Chapter 4]

• “4.2 Disassembly Procedures” on page 64 was revised.

• “4.3.4 Scanner Stand /Cover Wire” on page 68 was revised.

• “4.3.5 Scanner Unit” on page 69 was revised.

• “4.4.1 Panel Unit” on page 71 was revised.

• “4.7.1 Panel Unit” on page 107 was revised.

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Contents

Revision D

Chapter 1 PRODUCT DESCRIPTION

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

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

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

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

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

1.2.4 Supported Paper. ...................................................................................... 14

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

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

1.3.1 Scanning Range . ...................................................................................... 17

1.4 General Specifications. ....................................................................................... 18

1.4.1 Electrical Specifications . ......................................................................... 18

1.4.2 Environmental Conditions....................................................................... 18

1.4.3 Durability. ................................................................................................ 19

1.4.4 Acoustic Noise. ........................................................................................ 19

1.4.5 Safety Approvals (Safety standards/EMI)............................................... 19

1.5 Interface. ............................................................................................................. 20

1.5.1 USB Interface . ......................................................................................... 20

1.6 Control Panel. ..................................................................................................... 21

1.6.1 Operation Buttons & LEDs ..................................................................... 21

1.6.2 Control Panel Functions .......................................................................... 22

1.7 Stand-alone Copy Function ................................................................................ 25

1.7.1 Supported Paper and Copy Mode............................................................ 25

1.7.2 Setting for Stand-alone Copy .................................................................. 25

1.7.3 Copy Speed. ............................................................................................. 26

1.7.4 Multiple Copying. .................................................................................... 26

Chapter 2 OPERATING PRINCIPLES

2.1 Overview . ........................................................................................................... 28

2.1.1 Printer Mechanism . ................................................................................. 28

2.1.2 Motors & Sensors. ................................................................................... 29

2.1.3 Printhead. ................................................................................................. 30

2.2 Power-On Sequence . .......................................................................................... 31

Chapter 3 TROUBLESHOOTING

3.1 Overview . ........................................................................................................... 33

3.1.1 Specified Tools. ....................................................................................... 33

3.1.2 Preliminary Checks . ................................................................................ 33

3.2 Error Indications and Fault Occurrence Causes. ................................................ 34

3.2.1 Troubleshooting by Error Message . ........................................................ 35

3.2.2 Superficial Phenomenon-Based Troubleshooting. .................................. 51

3.2.3 Motor and Sensor Troubleshooting. ........................................................ 58

7

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

Chapter 4 DISASSEMBLY/ASSEMBLY

4.1 Overview . ........................................................................................................... 60

4.1.1 Precautions . ............................................................................................. 60

4.1.2 Tools ........................................................................................................ 61

4.1.3 Work Completion Check......................................................................... 61

4.1.4 Procedural Differences . ........................................................................... 63

4.2 Disassembly Procedures..................................................................................... 64

4.3 Removing the Housing....................................................................................... 65

4.3.1 Paper Support Tray.................................................................................. 65

4.3.2 Stacker Assy/ Ink Tube Cover................................................................. 65

4.3.3 Document Cover/ASF Cover .................................................................. 67

4.3.4 Scanner Stand /Cover Wire . .................................................................... 68

4.3.5 Scanner Unit . ........................................................................................... 69

4.3.6 Middle Housing ....................................................................................... 70

4.4 Removing the Circuit Boards ............................................................................. 71

4.4.1 Panel Unit ................................................................................................ 71

4.4.2 Main Board.............................................................................................. 72

4.4.3 Power Supply Unit .................................................................................. 73

4.5 Disassembling the Printer Mechanism . .............................................................. 75

4.5.1 Printhead.................................................................................................. 75

4.5.2 CR Scale . ................................................................................................. 78

4.5.3 Hopper . .................................................................................................... 79

4.5.4 PF Encoder/ PF Scale .............................................................................. 80

4.5.5 EJ Roller/ EJ Frame Assy........................................................................ 80

4.5.6 CR Motor/ Driven Pulley . ....................................................................... 82

4.5.7 Ink System ............................................................................................... 84

4.5.8 PF Motor.................................................................................................. 89

4.5.9 Main Frame ............................................................................................. 91

4.5.10 Upper Paper Guide . ............................................................................... 93

4.5.11 CR Unit.................................................................................................. 94

4.5.12 PF Roller................................................................................................ 97

4.5.13 LD Roller/ ASF Unit ............................................................................. 98

4.5.14 Waste Ink Pads . ................................................................................... 101

4.6 Disassembling the Scanner Unit....................................................................... 103

4.6.1 Upper Scanner Housing......................................................................... 103

4.6.2 Scanner Carriage Unit ........................................................................... 104

4.6.3 Scanner Motor Unit ............................................................................... 106

4.7 Disassembly/reassembly procedures of NX110 series..................................... 1

4.7.1 Panel Unit .............................................................................................. 107

07

Chapter 5 ADJUSTMENT

5.1 Adjustment Items and Overview...................................................................... 110

5.1.1 Servicing Adjustment Item List . ........................................................... 110

5.1.2 Required Adjustments . .......................................................................... 112

5.2 Using the Adjustment Program . ....................................................................... 114

5.2.1 TOP Margin Adjustment....................................................................... 114

5.2.2 Head Angular Adjustment. .................................................................... 115

5.2.3 Bi-D Adjustment . .................................................................................. 115

5.2.4 PF Adjustment....................................................................................... 116

Chapter 6 MAINTENANCE

6.1 Overview . ......................................................................................................... 118

6.1.1 Cleaning. ................................................................................................ 118

6.1.2 Service Maintenance . ............................................................................ 118

6.1.3 Lubrication . ........................................................................................... 119

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8

PRODUCT DESCRIPTION

CHAPTER

1

Confidential

C H E C K

P O I N T

Notation Product name

NX100 series

Epson Stylus NX100/NX105/SX100/SX105/TX100/
TX101/TX102/TX103/TX105/TX106/TX109/ME 300/ME
OFFICE 360

NX110 series

Epson Stylus NX110/NX115/SX110/SX115/TX110/
TX111/TX112/TX113/TX115/TX117/TX119

Paper Support & Stacker are Closed

Paper Support & Stacker are Opened

NX100 series

NX110 series

NX100 series

NX110 series

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

1.1 Features

In this chapter, the product names are called as follows:

NX100 series and NX110 series 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

Revision D

 Four independent ink cartridges is installed.

 Dimensions

 NX100 series

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

• Weight*2: 4.45 kg

 NX110 series

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

• Weight*2: 4.6 kg

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

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

PRODUCT DESCRIPTION Features 10

Figure 1-1. External View

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C A U T I O N

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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)

• 360 x 120 • 720 x 720

• 360 x 360 • 1440 x 720

• 360 x 720 • 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

Destination Black Cyan Magenta Yellow

EAI

Latin1

Latin2

Euro (West)

CISMEA T0921N (2S) T0922N (3S) T0923N (3S) T0924N (3S)

Asia

*1

ECC

Note *1 : NX100 series only

T0691 (2S)
T0881 (3S)

T0731N (2S)
T0901N (3S)

T1161 (2S)
T1171 (3S)

T0711 (2S)
T0891 (3S)

T0731N (2S)
T0911N (3S)

T1091 (2S) T1092 (2S) T1093 (2S) T1094 (2S)

 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

T0692 (3S)
T0882 (4S)

T0732N (3S) T0733N (3S) T0734N (3S)

T0732N (3S) T0733N (3S) T0734N (3S)

T0712 (3S)
T0892 (4S)

T0732N (3S)
T0912N (4S)

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

-20 oC to 40 oC

(-4oF to 104oF)

T0693 (3S)
T0883 (4S)

T0713 (3S)
T0893 (4S)

T0733N (3S)
T0913N (4S)

1 month max. at 40 oC (104oF)

T0694 (3S)
T0883 (4S)

T0713 (3S)
T0894 (4S)

T0734N (3S)
T0914N (4S)

 Dimension

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



Do not use expired ink cartridges.

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

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

PRODUCT DESCRIPTION Printing Specifications 11

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

1.2.3 Print Mode

Table 1-4. Print Mode (Color)

Media Print Mode

• Plain paper

• Premium Bright White Paper (EAI)

• Bright White Inkjet Paper (others)

• Premium Ink Jet Plain Paper (others)

• Photo Quality Inkjet Paper

• Premium Presentation Paper Matte (EAI)

• Matte Paper Heavy-weight (others)

• Premium Photo Paper Glossy (EAI)

• Premium Glossy Photo Paper (others)

• Premium Photo Paper Semi-gloss (EAI)

• Premium Semigloss Photo Paper (others)

• Photo Paper Glossy (EAI)

• Glossy Photo Paper (others)

• Photo Paper

Resolution

(H x V dpi)

Fast Economy

Economy

Normal 360x360

Fine 360x720

Photo

(720)

Photo

(720)

Best Photo

(1440)

Photo

(720)

Best Photo

(1440)

Super Fine 360x720

Photo

(720)

Best Photo

(1440)

Photo RPM

(5760)

Super Fine 360x720

Photo

(720)

Best Photo

(1440)

/

5760x1440

360x120

720x720

720x720

1440x720

720x720

1440x720

720x720

1440x720

720x720

1440x720

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)

VSD2

(240cps)

VSD2

(240cps)

VSD3

(240cps)

Table 1-4. Print Mode (Color)

Media Print Mode

• Ultra Premium Photo Paper Glossy (EAI)

• Ultra Glossy Photo Paper (others)

• Envelopes

Note * : cps = character per second

Resolution

(H x V dpi)

Best Photo

(1440)

Photo RPM

(5760)

Normal 360x360

Fine 360x720

1440x720

5760x1440

Dot Size (cps*)

VSD3

(240cps)

VSD3

(240cps)

VSD1

(165cps)

VSD2’

(240cps)

PRODUCT DESCRIPTION Printing Specifications 12

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Table 1-5. Print Mode (Monochrome)

/

Resolution

(H x V dpi)

360x120

1440x720

720x720

1440x720

720x720

1440x720

720x720

1440x720

5760x1440

720x720

1440x720

1440x720

5760x1440

Media Print Mode

• Plain paper

• Premium Bright White Paper (EAI)

• Bright White Inkjet Paper (others)

• Premium Ink Jet Plain Paper (others)

• Photo Quality Inkjet Paper

• Premium Presentation Paper Matte (EAI)

• Matte Paper Heavy-weight (others)

• Premium Photo Paper Glossy (EAI)

• Premium Glossy Photo Paper (others)

• Premium Photo Paper Semi-gloss (EAI)

• Premium Semigloss Photo Paper (others)

• Photo Paper Glossy (EAI)

• Glossy Photo Paper (others)

• Photo Paper

• Ultra Premium Photo Paper Glossy (EAI)

• Ultra Glossy Photo Paper (others)

• Envelopes

Note * : cps = character per second

Fast Economy

Economy

Normal 360x360

Fine 720x720

Photo

(720)

Photo

(720)

Best Photo

(1440)

Photo

(720)

Best Photo

(1440)

Super Fine 360x720

Photo

(720)

Best Photo

(1440)

Photo RPM

(5760)

Super Fine 360x720

Photo

(720)

Best Photo

(1440)

Best Photo

(1440)

Photo RPM

(5760)

Normal 360x360

Fine 720x720

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)

VSD2

(240cps)

VSD2

(240cps)

VSD3

(240cps)

VSD3

(240cps)

VSD3

(240cps)

VSD1

(165cps)

VSD2’

(240cps)

Revision D

PRODUCT DESCRIPTION Printing Specifications 13

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 (others) 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 Photo Paper Glossy (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”

*2

89 x 127 mm Y Y Y Y Y Y

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

8” x 10” 203.2 x 254 mm Y Y Y - Y -

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

5” x 7” 127 x 178 mm Y Y Y Y Y Y

0.27

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

4" x 6

"

3.5” x 5”

*2

101.6 x 152.4 mm Y Y Y Y Y Y

89 x 127 mm Y Y 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.)

2

2

2

2

2

2

EAI EUR Asia

*1

*1

*1

P

B

P

*1

B

P

Y - Y - Y -

Y - Y - Y -

- - Y - Y -

Y - - - - -

- - Y - Y -

Y Y Y - Y -

Y Y Y - Y -

*1

*1

B

PRODUCT DESCRIPTION Printing Specifications 14

Confidential

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

column stands for “Borderless printing is available”.

*2 : NX100 series only

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.

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Table 1-6. Supported Paper

Paper Name Paper Size

Letter 215.9 x 279.4 mm (8.5”x11”)

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

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

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 (others)

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

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 - -

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 (others)

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

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 -

Thickness

(mm)

0.25

0.27

0.24

0.23

-

Weight

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.)

Revision D

EAI EUR Asia

*1

*1

P

B

Y Y Y - Y -

2

Y Y Y - Y -

2

- - Y Y Y Y

2

Y Y Y - Y -

2

2

- - Y - Y -

Y - Y - Y -

2

*1

P

B

*1

*1

P

*1

B

PRODUCT DESCRIPTION Printing Specifications 15

Confidential

Print Area

LM RM

TM

BM

BM

Cut Sheet (Standard)

Cut Sheet (Borderless)

Paper SIze

LM

RM

TM

BM

Print Area

LM

RM

Print Area

Envelope

Paper Size

TM

Paper Feed Direction

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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

Any size 3 mm 3 mm 3 mm 3 mm

Left Right Top Bottom

Envelope 5 mm 5 mm 3 mm 20 mm

A4 / Letter to 5” x 7”

Borderless print

4” x 6” / 3.5” x 5” 2.82 mm*3.60 mm

2.54 mm*2.54 mm

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

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

Pixel depth

NX100 series

NX110 series

Main scan: 600 dpi
Sub scan: 1200 dpi

5,100 x 14,040 pixels

5,100 x 7,020 pixels

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

*2

*1

Note *1 : CIS optical resolution x Microstep drive

*2 : When scanning at 600dpi.

PRODUCT DESCRIPTION Scanner Specifications 16

Figure 1-2. Printing Area

Confidential

a

RW

RL

OTM

OLM

Scanning starting position

Scan area

Scan bed

Original

(facedown)

Home position

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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

Revision D

Figure 1-3. Scanning Range

PRODUCT DESCRIPTION Scanner Specifications 17

Confidential

C A U T I O N

10/50

27/80

35/9520/68

Temperature (°C/°F)

20

30

40

50

90

80

70

60

Humidity (%)

30/86 40/104

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

1.4 General Specifications

1.4.1 Electrical Specifications

Table 1-10. Primary Power Specifications

NX100 series NX110 series

Item

Rated power supply voltage

Input voltage range

Rated current (Max. rated current)

Rated frequency 50 to 60 Hz

Input frequency range 49.5 to 60.5 Hz

Insulation resistance

Insulation resistance

Energy conservation International Energy Star Program compliant

Standby (Max, when

Power off)

Power
consumption

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.

Sleep (Max) 3.8 W 3.8 W 2.3 W 2.0 W

Copying (Normal

BK mode, Typ.)

Copying (Draft BK

mode, Max.)

100-120 V

model

100 to 120

VAC

90 to 132

VAC

0.6 A

(TBD A)

1 W 1 W 0.3 W 0.5 W

11.7 W 11.5 W

22.1 W 22.4 W

220-240 V

model

220 to 240

VAC

198 to 264

VAC

0.4 A

(TBD A)

1500 VAC for one minute

(between AC lines and chassis)

Higher than 10 M Ω at 500 VDC

(between AC lines and chassis)

100-120 V

model

100 to 127

VAC

90 to 132

VAC

0.6 A

(TBD A)

17.4 W 16.1 W

220-240 V

model

220 to 240

VAC

198 to 264

VAC

0.4 A

(TBD A)

1.4.2 Environmental Conditions

Table 1-11. Environmental Conditions

Condition Temperature

Operating

Storage

(in carton box)

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

10 to 35°C

(50 to 95°F)

-20 to 60°C*

(-4°F to 140°F)

*1

3

Humidity

20 to 80%

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.

5 to 85%

*1,2

Shock Vibration

1G

(1 msec or less)

2G

(2 msec or less)

5 to 55Hz

5 to 55Hz

0.15G,

1.5G,

PRODUCT DESCRIPTION General Specifications 18

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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

 NX100 series

 T.B.D. dB

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

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

 NX110 series

 47 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

*

*

Note* :

NX100 series only

PRODUCT DESCRIPTION General Specifications 19

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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

Model When IEEE 1284.4 is Enabled When IEEE 1284.4 is Disabled

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

MFG:EPSON;
CMD:ESCPL2,BDC,D4,D4PX;

NX100 series

NX110 series

MDL:Model Name;
CLS:PRINTER;
DES:EPSON[SP]Model Name;
[FF]

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

MFG:EPSON;
CMD:ESCPL2,BDC,D4,D4PX;
MDL: Model Name;
CLS:PRINTER;
DES:EPSON[SP] Model Name;
CID:EpsonStd3;
[FF]

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

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]

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

MFG:EPSON;
CMD:ESCPL2,BDC;
MDL:Model Name;
CLS:PRINTER;
DES:EPSON[SP] Model Name;
CID:EpsonStd3;
[FF]

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

Destination

EAI (STD/Mass/Canada) Stylus NX100 Stylus NX110

Euro, Euro Premium Stylus SX100 Stylus SX110

EAI (Latin 120V Mexico), Asia 1

*2

Asia 2

EAI (Latin 120V Brazil / Latin

120V Colombia / Latin 220V)

CISMEA, CISMEA Premium Stylus TX106 Stylus TX117

ECC / ECC (Office) ME 300 ME 310

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

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

*1

NX100 series NX110 series

Stylus TX100 Stylus TX110

Stylus TX101 Stylus TX111

Stylus TX105 Stylus TX115

Model Name

PRODUCT DESCRIPTION Interface 20

Confidential

Power

Power LED

Stop

Paper LED

Ink LED

Start Photo

Start B&W

Start Color

Start Scan

NX100 series

NX110 series

Copy B&W

Copy Color

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

1.6 Control Panel

1.6.1 Operation Buttons & LEDs

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

 Buttons

Table 1-15. NX100 series

Button Function

Power Turns the power ON/OFF.

Stop

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

Start B&W Starts B&W copying.

Start Color Starts color copying.

Button Function

Power Turns the power ON/OFF.

Stop

Start Scan Starts scanning.

Copy B&W Starts B&W copying.

Copy Color Starts color copying.

 LEDs

LED Function

Power LED

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

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

Stops printing immediately and ejects the paper.

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

Table 1-16. NX110 series

Stops printing immediately and ejects the paper.

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

Table 1-17. LEDs

• 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.

Revision D

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

PRODUCT DESCRIPTION Control Panel 21

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

1.6.2 Control Panel Functions

Table 1-18. 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

*1

Stop

At power-on

Ready / Ink Low

(when pressed for 3 seconds or more)

Sleep

Scan
(NX110 series only)

Start Photo

*3

(NX100 series only)

Start B&W/Copy B&W

*3

Ready / Ink Low The application on the PC automatically starts up and starts scanning.

Sleep Recovers from sleep and the application on the PC automatically starts up, and starts scanning.

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.

Ready / Ink Low Starts B&W copying.

Sleep Recovers from sleep and starts B&W copying.

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

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.

 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

*2

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 22

Confidential

61

31

30

60

90

1

29

1

29

1

29

Black

Yellow

Cyan

Magenta

8 dots

360 dpi VSD1(Large) dot

0.212 mm (1/120 inch)

Nozzle check pattern

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Table 1-18. Buttons Functions

Button Printer Status Functions

Start Color/Copy Color

Start Color/Copy Color
(when pressed for 3 seconds or more)

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

Scan + Copy B&W
(NX110 series only)

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

Scan + Copy Color
(NX110 series only)

Start Photo + Start B&W
(NX100 series only)

Start Photo + Start Color
(NX100 series only)

*3

Ready / Ink Low Starts color copying.

Sleep Recovers from sleep and starts color copying.

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.

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

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

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

Ready / Ink Low Makes 20 copies in color copying.

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

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

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

Ready / Ink Low Makes 20 copies in color copying.

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

Revision D

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

(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.)

1

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

PRODUCT DESCRIPTION Control Panel 23

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

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

Table 1-19. LED Functions

Printer Status

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)

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

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 --- --- -

Power LED Paper LED Ink LED

Flashing ON ON 4

--- OFF ON 8

LED

Priority

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.34) for remedies for errors.

PRODUCT DESCRIPTION Control Panel 24

Confidential

a

a

a

a

Scan / Print direction

A

A

B

B

C

C

D

D

E

E

F

F

Readable Length

Paper Length

Paper
Width

Paper Length

Readable

Width

Readable Length

OTM

OTM

OLM

LM

LM

RM

RM

TM

BM

BM

TM

OLM

Home position

Home position

 Standard copy

 Borderless copy

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

1.7 Stand-alone Copy Function

1.7.1 Supported Paper and Copy Mode

Paper Type

Plain paper

Photo Paper

Note* : NX100 series only

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 Table 1-18 for key operation methods.

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

Note* : NX100 series only

Paper type

Paper size

Quality

Fit to Page

Table 1-20. Supported Paper and Copy Mode

Size

A4,

Letter

*

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

Table 1-21. Settings for Stand--alone Copy

Normal layout with 3mm margins

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

Refer to Table 1-20.

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.

Print

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.17)

C Original (face down) ---

OTM Top margin (out of scan range) “ 1-9 Scanning Range ” (p.17)

OLM Left margin (out of scan range) “ 1-9 Scanning Range ” (p.17)

Copied Document

D Copied paper ---

E Print area “ 1-7 Printing Area (Margins) ” (p.16)

F Copy ---

LM, RM Left margin, Right margin

TM, BM Top margin, Bottom margin*

“ 1-7 Printing Area (Margins) ” (p.16)

PRODUCT DESCRIPTION Stand-alone Copy Function 25

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

1.7.3 Copy Speed

Table 1-22. Copy Speed

Copy Conditions (eMemo, A4 size, per copy)

Monochrome copy 3 sec 3 sec

Color copy 12 sec 12 sec

Monochrome copy 14 sec 11 sec

Color copy 42 sec 37 sec

Plain
paper

360 x 120 dpi

360 x 360 dpi

NX100 series NX110 series

Time

1.7.4 Multiple Copying

Making 20 (fixed value) copies in color/B&W becomes available by operating specific
keys (Refer to p. 22). In this copying, the second copy or later are carried out without
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.

Table 1-23. Conditions for Storing the Scanned Data

Copy Mode

Color copy
Monochrome
copy

Print

Quality

Draft

Standard

Storing the data/repeating scanning

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.

Revision D

Note* : NX100 series only

PRODUCT DESCRIPTION Stand-alone Copy Function 26

Confidential

OPERATING PRINCIPLES

CHAPTER

2

Confidential

C H E C K

P O I N T

Notation Product name

NX100 series

Epson Stylus NX100/NX105/SX100/SX105/TX100/
TX101/TX102/TX103/TX105/TX106/TX109/ME 300/ME
OFFICE 360

NX110 series

Epson Stylus NX110/NX115/SX110/SX115/TX110/
TX111/TX112/TX113/TX115/TX117/TX119

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 Scale PF Encoder Sensor

CR Motor

CR Scale

Wheel Star Exit

Pump Assy

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

2.1 Overview

In this chapter, the product names are called as follows:

Revision D

This chapter describes the mechanism of NX100 series and NX110 series.

2.1.1 Printer Mechanism

NX100 series and NX110 series printer mechanism consists of printhead, carriage
mechanism, paper loading mechanism, paper feed mechanism, and ink system.

As the conventional models, NX100 series and NX110 series are 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.

Figure 2-1. Printer Mechanism block diagram

OPERATING PRINCIPLES Overview 28

Confidential

PF Encoder Sensor

CR Contact Module

PE Sensor

Printhead

CR Motor

PF Motor

CR Encoder Sensor

CIS Unit

CR Motor

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

2.1.2 Motors & Sensors

NX100 series and NX110 series printer mechanism are 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.30)

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

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

to set paper at the print start position

Type: Photo interrupter

Type: Photo interrupter
Resolution: TBD

Type: Photo interrupter
Resolution: TBD

Revision D

Figure 2-2. Motors & Sensors in Printer Mechanism

No. Name Specification

1 CIS Unit

2 CR Motor

Table 2-2. Scanner Mechanism CIS & Motor

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

1, 8 bit per pixel (output)

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

OPERATING PRINCIPLES Overview 29

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

Figure 2-4. Nozzle Layout

OPERATING PRINCIPLES Overview 30

Confidential

lock

lockisreleased

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

2.2 Power-On Sequence

This section describes the power-on sequences for this product.

 Condition

 Completing ink charge.
 No paper on the paper path.
 The Printhead is capped with the Cap of the Ink System.
 The Carriage is locked by the CR Lock.

Table 2-3. Operation of the power-on sequence

Operation

1. Checking waste ink overflow

1-1.Reads out the protection counter value to check waste ink overflow.

2. Seeking the home position

2-1.The carriage moves to the 80-digit side slowly and confirms it

touches the CR lock.

2-2.The carriage moves to the 0-digit side slowly to leave from the CR

lock.

2-3.Checks if paper does not exist with the PE sensor and the PF Motor

rotates clockwise to release the CR lock.

2-4.The carriage moves to the 80-digit side slowly and confirms that the

CR lock is released.

2-5.The carriage quickly moves to the 80-digit side by the Left Frame.

*1

Carriage/PF roller

movement and position

Table 2-3. Operation of the power-on sequence

Operation

4. Detecting ink cartridge and initializing ink system

4-1.The carriage moves to the 80-digit side for IES detection.

4-2.The carriage returns to its home position.

4-3.The carriage slowly moves to the CR lock set position.

4-4.The PF Motor rotates clockwise.

*2

4-5.The PF Motor rotates counterclockwise and sets the CR lock.

4-6.The carriage slowly returns to its home position.

*1

* 4

Note *1 : The rotation direction of the PF Motor is as follows.

Clockwise direction : Paper is fed normally
Counterclockwise direction : Paper is fed backward

*2 : The conditions of the CR lock are as follows.

Red: CR lock is set
White: CR lock is released

*3 : Executed when the detected temperature is under 5 oC (41oF) by the thermistor on the

Printhead.

*4 : The empty sanction operation may occur depending on the situation.

Carriage/PF roller

movement and position

*2

2-6.After the carriage continuously moves to the 80-digit side slowly

and confirms it touches the Left Frame, sets the distance from the
home position to the Left Frame as the theoretical value.

2-7.The carriage quickly moves to the 0-digit side and slows down as it

gets to its home position, and stops there.

3. Low temperature operation sequence

3-1.The carriage moves back and forth between the 0-digit side and the

80-digit side for two times.

OPERATING PRINCIPLES Power-On Sequence 31

*3

Confidential

TROUBLESHOOTING

CHAPTER

3

Confidential

W A R N I N G

C H E C K

P O I N T

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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.59) 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.59), 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 33

 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.

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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. (p41)

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. (p42)

Paper out error -- ON OFF Failure to load paper to print. Table 3-5. (p45)

Double feed error -- Flashing OFF Double feed during double sided printing. Table 3-6. (p47)

High-speed

LED Indications

Power Paper Ink

High-speed

flashing

Flashing Flashing 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. (p35)

Table 3-7. (p48)

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 34

Confidential

J5

Scanner Motor cable

J4

Scanner Carriage FFC

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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”.

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

Occurrence timing

CR position

Detailed phenomenon

Defective

unit/part name

Scanner Motor

Check point Remedy

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

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

2. Replace the Scanner Motor with a new one.

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 35

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.

Confidential

J7

CR Motor Cable

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.117).) (TBD)

2. Reassemble the Scanner Carriage Unit

correctly.

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

Board.

Revision D

• 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 36

Confidential

J6

PF Motor Cable

Change Lever

Compression Spring

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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

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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 37

Confidential

Upper Paper Guide

Slit of the CR Encoder Board

CR Scale

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 38

Confidential

CR Encoder Board Encoder FFC

PF Scale

PF Encoder Sensor

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 39

Confidential

Cap Assy

Lever Cleaner

Cap Assy

Spring

Cleaner Case

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 40

Confidential

Lever Cleaner

Cleaner Lever

Spring

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.84))

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.109))

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 41

Confidential

Paper Back Lever

Extension Spring

Extension Spring

PE Sensor Lever

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 42

Confidential

Extension Spring

Backside of ASF Unit

EJ Frame Assy

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 43

Confidential

Wheel Star Metal
Spring Star Wheel
Wheel Star Exit

EJ Roller

Upper Paper Guide

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

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 44

Upper Paper Guide*

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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

Revision D

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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 45

Confidential

Extension Spring

Guide pin

Clutch

LD Roller Shaft

Change Lever

Compression Spring

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 46

Confidential

Extension Spring

Backside of ASF Unit

Paper Back Lever

Extension Spring

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 47

Confidential

Memory Chip

Connector

CR Contact Module is behind

Holder Contact Assy.

Head FFC

Contact Assy

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 48

Confidential

J3

PS Board Cable

PS Board

PS Board Cable

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 49

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Panel FFC

J2

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 50

Confidential

Extension Spring

Backside of ASF Unit

Paper Back Lever

Extension Spring

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 51

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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

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.117).)

Unit. (blow away the dusts)

Revision D

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 52

Confidential

Seal rubber part

Compression

Spring

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 53

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Printhead

Connector

Head

FFC

J9 J8

CR movement

direction

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Print Quality State Detailed phenomenon

• White streak /
abnormal discharge

• White streak / color
unevenness
occurrence

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.

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

CR Motor with a new one.

Revision D

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

Defective

unit/part name

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

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

Printhead

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

Adjustment

Printhead

Main Frame

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

or replacing the Ink Cartridge.

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

1. Check if the Nozzle Check Pattern is printed properly. 2. Perform Head Cleaning and check the Nozzle

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

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

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

Check point Remedy

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

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

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

Chapter 5 “ADJUSTMENT” (p.109).)

Check Pattern. (Refer to Chapter 5

“ADJUSTMENT” (p.109).)

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

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

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.117).) (TBD)

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 54

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CR movement

direction

PF Roller Assy

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.109).)

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.

Revision D

• 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.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 55

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LD Roller

Lower Housing (Front Paper Guide)

Porous Pad Front Paper Guide

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.45).

* If the problem is not solved, replace the ASF

Unit with a new one.

Revision D

Lower Housing

• Ink stain of paper

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 56

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.

Confidential

Wheel Star Metal
Spring Star Wheel
Wheel Star Exit

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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.

Revision D

• Ink stain of paper

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

EJ Frame Assy

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 57

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

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

Revision D

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 58

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DISASSEMBLY/ASSEMBLY

CHAPTER

4

Confidential

C H E C K

P O I N T

Notation Product name

NX100 series

Epson Stylus NX100/NX105/SX100/SX105/TX100/
TX101/TX102/TX103/TX105/TX106/TX109/ME 300/ME
OFFICE 360

NX110 series

Epson Stylus NX110/NX115/SX110/SX115/TX110/
TX111/TX112/TX113/TX115/TX117/TX119

W A R N I N G

 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.

C A U T I O N

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

4.1 Overview

In this chapter, the product names are called as follows:

This section describes procedures for disassembling the main components of NX100
series and NX110 series. 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

DISASSEMBLY/ASSEMBLY Overview 60

NX100 series and NX110 series.



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” (p117) for details.)

 Make the specified adjustments when you disassemble the

printer. (See Chapter 5 “ADJUSTMENT” (p109) for details.)

 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.

Revision D

Confidential

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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.

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

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

OK / NG

OK / NG

OK / NG

Paper Feeding
Mechanism

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

OK / NG

DISASSEMBLY/ASSEMBLY Overview 61

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Table 4-2. Work Completion Check

Classification Item Check Point Status

Is glass surface dirty? OK / NG

Mechanism

Is any foreign substance mixed
in the CR movement area?

Does CR operate smoothly? OK / NG

OK / NG

Revision D

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

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

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

Is the printer carriage placed at
the capping position?

Have all the relevant items been
included in the package?

OK / NG

OK / NG

Others

Protective materials

Attachments,
Accessories

DISASSEMBLY/ASSEMBLY Overview 62

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Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.1.4 Procedural Differences

The disassembly/reassembly procedures of NX100 series and NX110 series are different. Unless otherwise specified, this chapter describes NX100 series. Refer to the pages
mentioned below for the disassembly/reassembly procedures of NX110 series.

Table 4-3. Procedure Differences

Parts name Differences Reference page

 NX100 series

Panel Unit

The shapes and positions of the button on the Panel Unit are different. (See

“ 1.6 Control Panel ” ( p. 21 ) for the shapes of the Panel Unit.)

 “ 4.4.1 Panel Unit ” ( p. 71 )

 NX110 series

 “ 4.4.1 Panel Unit ” ( p. 71 )

DISASSEMBLY/ASSEMBLY Overview 63

Confidential

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 ” (p80)

“ 4.5.4 PF Encoder/

PF Scale ” (p80)

Start

“ 4.4.1 Panel Unit ” (p71)

“ 4.3.1 Paper Support

Tray ” (p65)

“ 4.3.3 Document Cover/

ASF Cover ” (p67)

“ 4.3.6 Middle Housing ”

(p70)

“ 4.5.3 Hopper ” (p79)

“ 4.4.2 Main Board ”

(p72)

“ 4.5.12 PF Roller ”

(p97)

“ 4.5.9 Main Frame ”

(p91)

“ 4.5.13 LD Roller/

ASF Unit ” (p98)

“ 4.5.6 CR Motor/

Driven Pulley ” (p82)

“ 4.5.7 Ink System ” (p84)

“ 4.5.1 Printhead ” (p75)

“ 4.5.11 CR Unit ” (p94)

“ 4.5.4 PF Encoder/

PF Scale ” (p80)

“ 4.5.5 EJ Roller/

EJ Frame Assy ”

(p80)

“ 4.5.1 Printhead ” (p75)

“ 4.3.4 Scanner Stand /

Cover Wire ” (p68)

“ 4.5.8 PF Motor ”

(p89)

“ 4.3.2 Stacker Assy/ Ink

Tube Cover ” (p65)

“ 4.4.3 Power Supply

Unit ” (p73)

“ 4.5.2 CR Scale ” (p78)

“ 4.5.6 CR Motor/

Driven Pulley ” (p82)

“ 4.5.7 Ink System ” (p84)

“ 4.5.10 Upper Paper

Guide ” (p93)

“ 4.5.13 LD Roller/

ASF Unit ” (p98)

“ 4.6.2 Scanner Carriage

Unit ” (p104)

“ 4.6.1 Upper Scanner

Housing ” (p103)

“ 4.6.3 Scanner Motor

Unit ” (p106)

“ 4.3.3 Document Cover/

ASF Cover ” (p67)

“ 4.5.14 Waste Ink Pads ”

(p101)

“ 4.3.5 Scanner Unit ” (p69)

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

4.2 Disassembly Procedures

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

Revision D

DISASSEMBLY/ASSEMBLY Disassembly Procedures 64

Figure 4-1. Disassembling Flowchart

Confidential

Guide Pins

Paper Support Tray

Stacker Assy

Guide Pins

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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/ Ink Tube Cover

 Parts/Components need to be removed in advance:

None

 Removal procedure

 Stacker Assy

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 4-2. Removing the Paper Support Tray

DISASSEMBLY/ASSEMBLY Removing the Housing 65

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

Confidential

Tray Exit Inner

Tray Exit Outer

Outer rib

Inner rib

Rib

Hook

Ink Tube Cover

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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)

 Ink Tube Cover

1. Release the hook that secure the Ink Tube Cover, and remove the Ink Tube
Cover.

Figure 4-5. Removing the Ink Tube Cover

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.

DISASSEMBLY/ASSEMBLY Removing the Housing 66

Confidential

Document Cover

ASF Cover

Guide Pins

Document Cover

Scanner Unit

Guide Pins

Document Pad

Home position

Double-sided tape position

Standard line

Document Cover

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 4-6. 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.

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.

DISASSEMBLY/ASSEMBLY Removing the Housing 67

Figure 4-7. Removing the Document Cover

Figure 4-8. Document Pad Position

Confidential

C A U T I O N

Hook

Guide pins

Scanner Stand

Scanner Unit

Scanner Stand Spring

Hook

Cover Wire

Scanner Unit

Scanner Stand

Scanner Stand Spring

Hook

Groove

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.3.4 Scanner Stand /Cover Wire

 Parts/Components need to be removed in advance:

Panel Unit (p 71)

 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.

 Cover Wire

1. Open the Scanner Unit.

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

Figure 4-10. 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.

DISASSEMBLY/ASSEMBLY Removing the Housing 68

Figure 4-9. Removing the Scanner Stand

Figure 4-11. Installing the Scanner Stand

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

Scanner FFC with the Cover Wire.

Confidential

C A U T I O N

Scanner Unit

Scanner FFC

Scanner Motor Cable

1

2

Dowel

Cutout

Shaft hole

Scanner Unit

Middle Housing

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.3.5 Scanner Unit

 Parts/Components need to be removed in advance:

Panel Unit (p 71), Scanner Stand/Cover Wire (p 68)

 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)

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.

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

3. Connect the Scanner FFC and the Scanner Motor Cable to

DISASSEMBLY/ASSEMBLY Removing the Housing 69

connectors J4, J5 on the Main Board.

Confidential

Lower Housing

Middle Housing

Rear Side

Hook

SCREW M3x10 P-TITE (5±0.5kgfcm)

Left Side

Hook A

Hook

Right Side

Hook

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.3.6 Middle Housing

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire(p 68), Scanner Unit (p 69), Panel Unit (p 71)

 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)

DISASSEMBLY/ASSEMBLY Removing the Housing 70

Confidential

C H E C K

P O I N T

C A U T I O N

Panel Unit

Middle Housing

Positioning Hole

Hook

C A U T I O N

Panel Unit

Panel FFC

J2

Panel Board

Positioning Hole

Hook

Panel Unit

SCREW M3x8 P-TITE (5±0.5kgfcm)

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.4 Removing the Circuit Boards

4.4.1 Panel Unit

The disassembly/reassembly procedures for NX110 series differ
from those of NX100 series, see

procedures of NX110 series ” ( p. 107 )

 Parts/Components need to be removed in advance:

None

 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.

 Make sure to work with both hands.

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

“ 4.7 Disassembly/reassembly

for the procedures.

When disconnecting the Panel FFC from the connector (J2) on the
Main Board, hold the Panel FFC and pull it directly above from
the connector (J2).

3. Remove the Cover Wire (p 68).

4. 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)

DISASSEMBLY/ASSEMBLY Removing the Circuit Boards 71

Confidential

Button PowerButton OP LED Lens

Panel Cover

Dowel

Main Board

J3J6 J7

J2J4J5J8J9

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

 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 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Hopper (p 79)

 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

Black

Connector

Color

White 4

White 2

Brown 2

Pins

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

DISASSEMBLY/ASSEMBLY Removing the Circuit Boards 72

Confidential

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

J3

Main board

Lower housing

SCREW M3x8 P-TITE (5±0.5kgfcm) Rib

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 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.109)

DISASSEMBLY/ASSEMBLY Removing the Circuit Boards 73

Confidential

SCREW M3x8 P-TITE (5±0.5kgfcm)

Terminal

Power Supply Unit

Power Supply Unit Cover

Grounding Wire (NX100 series only)

A D J U S T M E N T

R E Q U I R E D

Dowel

Positioning Hole

Protrusion

Rib

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4. Remove the screw that secures the Power Supply Unit Cover, and remove the
Grounding Wire (NX100 series only) and the Power Supply Unit Cover 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, and secure it together with the Power
Supply Unit as shown in Fig.4-24. (NX100 series only.)

 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

DISASSEMBLY/ASSEMBLY Removing the Circuit Boards 74

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

• Chapter 5 “ ADJUSTMENT” (p.109)

Confidential

Carriage Lock

Carriage Unit

Locked

Unlocked

Tab

FFC

Head FFC

FFC

CR Contact Module (CN1)

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5 Disassembling the Printer Mechanism

4.5.1 Printhead

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 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)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 75

Confidential

Holder Contact Assy

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 76

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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.109)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 77

Confidential

C A U T I O N

Hook

CR Scale

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

4.5.2 CR Scale

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 Removal procedure

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

Printhead (p75)".)

 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.

Revision D

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 78

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

4. Detach the Extension Spring from the Main Frame.

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

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.109)

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.3 Hopper

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 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 79

• Chapter 5 “ ADJUSTMENT” (p.109)

Confidential

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)

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.4 PF Encoder/ PF Scale

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 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 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 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.109)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 80

Confidential

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.

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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.

 Be careful not to break the rib of the frame base that secure the

EJ Roller.

 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.109)

 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 81

lubrication.

• Chapter 6 “ MAINTENANCE” (p.117)

Confidential

C A U T I O N

J7

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.6 CR Motor/ Driven Pulley

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71)

 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 (p75)".)

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 82

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

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

 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.109)

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

required lubrication.

• Chapter 6 “ MAINTENANCE” (p.117)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 83

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.7 Ink System

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), CR Motor/ Driven Pulley (p 82)

 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)

4.

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 84

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

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

Confidential

Cap Assy

Ink Tube

Point A

Duct Tube End

Ink Tube

ASF Unit

Holder Tube

Hook

Point D

Pump Assy

Hook

Pump Assy

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 85

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

 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 Fig.4-52, Fig.4-63)

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

then secure it. (See Fig.4-53, Fig.4-63)

•

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

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.109)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 86

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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, and insert
them without any gap. (See Fig.4-60.)

 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 87

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

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

Confidential

Pump Housing

Hook Gear Pump Idle

Gear Pump

Bracket Pump

Roller Pump

Bracket Pump

Inside

Ink Tube

A B C D E

10±1mm

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 88

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

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Hopper (p 79), Main Board (p 72)

 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 89

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)

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

 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
adjustments must be carried out.

• Chapter 5 “ ADJUSTMENT” (p.109)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 90

Confidential

C A U T I O N

Extension Spring

Extension Spring A

SCREW SEMS M2.6x3.5 PAN HEAD+

Bracket

Bracket

Front

Upper/lower hook and hole

Central hook

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.9 Main Frame

 Parts/Components need to be removed in advance:

Scanner Stand/ Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Hopper (p 79), Main Board (p 72)
CR Motor/ Driven Pulley (p 82), Ink System (p 84), PF Encoder/ PF Scale (p 80)

 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 (p89)".)

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 91

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 Fig.4-74.)

• The two ribs of the frame and the two grooves of the Lower

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

 When installing the Extension Spring A, attach it from the right

side of the rib of the Main Frame.

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 92

• Chapter 5 “ ADJUSTMENT” (p.109)

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.10 Upper Paper Guide

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing(p 70)
Panel Unit (p 71), Hopper (p 79), Main Board (p 72)
CR Motor/ Driven Pulley (p 82), Ink System(p 84), PF Encoder/ PF Scale(p 80)
Main Frame (p 91)

 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.109)

Figure 4-76. Removing the Upper Paper Guide

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 93

Confidential

FFC

Holder FFC

Main Frame

CR Unit

Main Frame

Hole

Head FFC

Carriage

CR Encoder Connector

CR Encoder FFC

Rib

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.11 CR Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Printhead (p 75), CR Motor/ Driven Pulley (p 82)
Ink System (p 84), Hopper (p 79), Main Board (p 72)

 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 (p91)".)

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 94

Confidential

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.

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 95

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 Fig.4-81.)

 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.

Figure 4-83. Installing the CR Unit (2)

Confidential

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

FFC

Rib A

Head FFC

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

 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.109)

Figure 4-85. Installing the CR Unit (4)

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 96

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.12 PF Roller

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Main Board (p 72), EJ Roller/ EJ Frame Assy (p 80)
CR Motor/ Driven Pulley (p 82), Ink System (p 84), Main Frame(p 91)

 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 97

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.109)

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.13 LD Roller/ ASF Unit

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire (p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Hopper (p 79), Main Board (p 72)
CR Motor/ Driven Pulley (p 82), Ink System(p 84), PF Encoder/ PF Scale(p 80)
Main Frame (p 91)

 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 98

Figure 4-90. Removing the LD Roller Assy

Figure 4-92. Removing the Retard Roller Assy

Confidential

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

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

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 99

Figure 4-96. Assembling the LD Roller Assy (1)

Confidential

LD Roller Shaft

Guide pin

Extension Spring

Clutch

Hook

Hook

LD Roller

Positioning hole

Combination Gear

Retard Roller

Retard Roller Assy

Feeding paper side

Ejecting paper side

A D J U S T M E N T

R E Q U I R E D

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

 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.

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

• Chapter 5 “ ADJUSTMENT” (p.109)

Figure 4-98. Assembling the Retard Roller Assy

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 100

Confidential

Waste Ink Pads (A-F)

Rib

A

B

C

D

Lower Housing

E

Diffusion Sheet

Duct Tube End

Parts in section B

1

2

4

5

3

Notch

Dowel

1

2

Notch

Parts in section C

Epson Stylus NX110/115/SX110/115/TX110/111/112/113/115/117/119

Revision D

4.5.14 Waste Ink Pads

 Parts/Components need to be removed in advance:

Scanner Stand/Cover Wire(p 68), Scanner Unit (p 69), Middle Housing (p 70)
Panel Unit (p 71), Main Board (p 72), EJ Roller/ EJ Frame Assy (p 80)
CR Motor/ Driven Pulley (p 82), Ink System (p 84), Main Frame (p 91)
PF Roller (p 97), LD Roller/ ASF Unit (p 98)

 Removal procedure

1. Remove the Waste Ink Pads (A - F) from the Lower Housing.

Figure 4-99. Removing the Waste Ink Pads



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.

DISASSEMBLY/ASSEMBLY Disassembling the Printer Mechanism 101

Figure 4-101. Installing the Waste Ink Pads (2)

Confidential