Epson Stylus NX125 Series User manual

SERVICE MANUAL
CONFIDENTIAL
Color Inkjet Printer
Epson StylusNX125/NX127/TX120/TX125/TX123/
SX125/TX121/TX121x/TX129/
Epson ME320/ME330/ME350
Epson StylusT13/T13x/T12/N10/N11/T22/T25/S22/
T22E/
Epson ME10/ME32/ME33/ME35
Epson StylusNX130/TX130/TX133/TX135/SX130
ME 340
SEMF09-013
SEIJ09-007

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Notice:
All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior
written permission of SEIKO EPSON CORPORATION.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors
be detected, SEIKO EPSON would greatly appreciate being informed of them.
The contents of this manual are subject to change without notice.
The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in
this manual or the consequences thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
Note :Other product names used herein are for identification purpose only and may be trademarks or registered
trademarks of their respective owners. EPSON disclaims any and all rights in those marks.
Copyright 2010 SEIKO EPSON CORPORATION
IJP CS Quality Assurance Department

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Safety Precautions
All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this
product.
DANGER
Strictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life.
1. Always disconnect the product from the power source and peripheral devices when servicing the product or
performing maintenance.
2. When performing works described in this manual, do not connect to a power source until instructed to do so.
Connecting to a power source causes high voltage in the power supply unit and some electronic components
even if the product power switch is off. If you need to perform the work with the power cable connected to a
power source, use extreme caution to avoid electrical shock.
WARNING
Strictly observe the following cautions. Failure to comply may lead to personal injury or loss of life.
1. Always wear protective goggles for disassembly and reassembly to protect your eyes from ink in working. If
any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.
2. 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.
PRECAUTIONS
Strictly observe the following cautions. Failure to comply may lead to personal injury or damage of the product.
1. Repairs on Epson product should be performed only by an Epson certified repair technician.
2. No work should be performed on this product by persons unfamiliar with basic safety knowledge required for
electrician.
3. The power rating of this product is indicated on the serial number/rating plate. Never connect this product to
the power source whose voltages is different from the rated voltage.
4. Replace malfunctioning components only with those components provided or approved by Epson;
introduction of second-source ICs or other non-approved components may damage the product and void any
applicable Epson warranty.
5. In order to protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-static
wrist straps, when accessing internal components.
6. Do not tilt this product immediately after initial ink charge, especially after performing the ink charge several
times. Doing so may cause ink to leak from the product because it may take some time for the waste ink pads
to completely absorb ink wasted due to the ink charge.
7. 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.

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8. When disassembling or assembling this product, make sure to wear gloves to avoid injuries from metal parts
with sharp edges.
9. Use only recommended tools for disassembling, assembling or adjusting the printer.
10. Observe the specified torque when tightening screws.
11. Be extremely careful not to scratch or contaminate the following parts.
Nozzle plate of the printhead
CR Scale
PF Scale
Coated surface of the PF Roller
Gears
Rollers
LCD
Scanner Sensor
Exterior parts
12. Never use oil or grease other than those specified in this manual. Use of different types of oil or grease may
damage the component or give bad influence on the printer function.
13. Apply the specified amount of grease described in this manual.
14. Make the specified adjustments when you disassemble the printer.
15. When cleaning this product, follow the procedure described in this manual.
16. When transporting this product after filling the ink in the printhead, pack the printer without removing the
ink cartridges in order to prevent the printhead from drying out.
17. Make sure to install antivirus software in the computers used for the service support activities.
18. Keep the virus pattern file of antivirus software up-to-date.

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About This Manual
This manual, consists of the following chapters, is intended for repair service personnel and includes information
necessary for properly performing maintenance and servicing the product.
CHAPTER 1. DISASSEMBLY / ASSEMBLY
Describes the disassembly/reassembly procedures for main parts/units of the product, and provides the
standard operation time for servicing the product.
CHAPTER 2. ADJUSTMENT
Describes the required adjustments for servicing the product.
CHAPTER 3. MAINTENANCE
Describes maintenance items and procedures for servicing the product.
CHAPTER 4. APPENDIX
Provides the following additional information for reference:
Power-On Sequence
Connector Summary
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. Pay attention to all symbols when they are
used, and always read explanation thoroughly and follow the instructions.
Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed,
could result in serious injury or loss of life.
Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed,
could result in bodily injury, damage or malfunction 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.
For Chapter 1 “Disassembly/Assembly”, symbols other than indicated above are used to show additional
information for disassembly/reassembly. For the details on those symbols, see " 1.2 Disassembly/Assembly
Procedures (p10)".

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Revision Status
Revision Date of Issue Description
A April 28, 2010 First Release
B August 19, 2010 Revised Contents
[Chapter 1]
- 1.2.1Standard Operation Time for servicing the product Table 1-2 on page 11-12
Standard Operation Time(NX125 series) is added.
- 1.2.1Standard Operation Time for servicing the product Table 1-3 on page 12
Standard Operation Time(T13 series) is added.
[Chapter 3]
- 3-1 Overview on page 28-30.
Greese name is added.
C October 12, 2010 [Chapter 3]
- 3-1 Overview on page 28-30.
Greese name is TBD.
D February 22, 2011 [All chapters]
The model name”EPSON Stylus TX121x/TX13x/EPSON ME 350/
EPSON ME 35 are added.
E March 25, 2011 Revised Contents
[All chapters]
- The model name ”EPSON Stylus NX130 series” are added, and revision is changed.
[Chapter 5]
- Information for “EPSON Stylus NX130/TX130/TX133/TX135/SX130/ME340” is
added.
F May 26, 2011 Revised Contents
[chapter 3]
- 3-1 Overview on page 28.
Grease name: G-94
- 3-2 Overview on page 29.
<Grease Lubrication Point>
Shaft on the Scanner Housing ---> Greese name is G-94.
- 3-2 Overview on page 30.
<Grease Lubrication Point>
Contacting points (x2) with the Driven Pulley ---> Greese name is G-71.

7
Epson Stylus NX125/T13/NX130 series Revision F
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Contents
Chapter 1 Disassembly/Assembly
1.1 Overview................................................................................................................................................................... 9
1.1.1 Tools................................................................................................................................................................. 9
1.2 Disassembly/Assembly Procedures......................................................................................................................... 10
1.2.1 Standard Operation Time for servicing the product....................................................................................... 11
1.2.2 Disassembling/Assembling Flowchart........................................................................................................... 13
1.2.2.1 Housing Part .......................................................................................................................................... 13
1.2.2.2 Printer Mechanism Part ......................................................................................................................... 14
1.3 Details of Disassembling/Assembling by Parts/Unit .............................................................................................. 16
1.4 Routing FFC/cables................................................................................................................................................. 21
Chapter 2 Adjustment
2.1 Required Adjustments............................................................................................................................................. 24
2.2 Revision EDetails of Adjustments .......................................................................................................................... 26
2.2.1 TOP Margin Adjustment................................................................................................................................ 26
Chapter 3 Maintenance
3.1 Overview................................................................................................................................................................. 28
3.1.1 Cleaning.......................................................................................................................................................... 28
3.1.2 Lubrication...................................................................................................................................................... 28
3.2 Lubrication Point..................................................................................................................................................... 29
Chapter 4 Appendix
4.1 Power-On Sequence................................................................................................................................................ 32
4.2 Connector Summary................................................................................................................................................ 34
Chapter 5 Stylus NX130 Series
5.1 Overview................................................................................................................................................................. 36

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CHAPTER 1
DISASSEMBLY/ASSEMBLY

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Disassembly/Assembly Overview 9
Epson Stylus NX125/T13/NX130 series Revision F
1.1 Overview
This chapter describes procedures for disassembling the main components of NX125, T13 and NX130 series.
Unless otherwise specified, disassembled units or components can be reassembled by reversing the disassembly
procedure. Refer to " 1.3 Details of Disassembling/Assembling by Parts/Unit (p16)" for cautions and such if
necessary when disassembling and assembling.
Read the " Safety Precautions (p3)" before disassembling and assembling.
When you have to remove components or parts that are not described in this chapter, see the exploded diagrams
of SPI (Service Parts Information).
1.1.1 Tools
Use only specified tools to avoid damaging the printer.
Note *: All of the tools listed above are commercially available.
EPSON provides the tools listed with EPSON part code.
In this chapter, the product names are called as follows:
NX125 series: Epson Stylus NX125/NX127/TX120/TX125/TX123/SX125/TX121/TX121x/
TX129/Epson ME 320/ME 330/ME 350
T13 series: Epson Stylus T13/T13x/T12/N10/N11/T22/T25/S22/T22E/Epson ME 10/
ME 32/ME 33/ME 35
NX130 series: Epson Stylus NX130/TX130/TX133/TX135/SX130/Epson ME 340
Table 1-1. Tools
Name EPSON Part Code*
(+) Phillips screwdriver #1 1080530
(+) Phillips screwdriver #2 ---
Flathead screwdriver ---
Flathead Precision screwdriver #1 ---
Tweezers ---
Longnose pliers ---
Acetate tape 1003963
Nippers ---

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Disassembly/Assembly Disassembly/Assembly Procedures 10
Epson Stylus NX125/T13/NX130 series Revision F
1.2 Disassembly/Assembly Procedures
This section describes procedures for disassembling the parts/units in a flowchart form. For some parts/units,
detailed procedures or precautions are provided (accordingly indicated by icons and cell's color). Refer to the
explanations in the example chart below and perform an appropriate disassembling and assembling procedure.
(See" 1.3 Details of Disassembling/Assembling by Parts/Unit (p16)".)
For routing cables, see " 1.4 Routing FFC/cables (p21)"
The example below shows how to see the charts on the following pages.
Main Frame
4
5
(p 17, p 29)
S1 S5
EJ Roller Gear
---
---
---
Item Description Reference
Parts/unit name White-letter Parts/units supplied as an ASP ---
Black-letter Parts/units not supplied as an ASP ---
Icon
Indicates a practice or condition that could result in
injury or loss of life if not strictly observed. Indicates the reference page in blue-letter
Indicates a practice or condition that could result in
damage to, or destruction of equipment if not strictly
observed.
Indicates the reference
page in blue-letter
Indicates the parts that are inevitably broken in the
disassembling procedure, and should be replaced with
a new one for reassembly. ---
Indicates necessary check items in the disassembling/
assembling procedure. Indicates the reference page in blue-letter
Indicates supplementary explanation for disassembly
is given. Indicates the reference page in blue-letter
Indicates particular tasks to keep quality of the
components are required. Indicates the reference page in blue-letter
Indicates particular routing of cables is required. Indicates the reference
page in blue-letter
Indicates particular adjustment(s) is/are required. Chapter 2 " Adjustment
(p23)"
Indicates lubrication is required. Chapter 3 " Maintenance
(p27)"
Indicates the number of screws securing the parts/
units. ---
Indicates the points secured with other than a screw
such as a hook, rib, dowel or the like. ---
Shows removal/installation as a
unit/assy. is available.
Reference page
White letters indicate a
part/unit supplied as an
ASP.
Black letters indicate a
part/unit not supplied
as an ASP.
Shows the
correspondence to the
screw types and the
specified torque in the
"Screw type/torque list".

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Disassembly/Assembly Disassembly/Assembly Procedures 11
Epson Stylus NX125/T13/NX130 series Revision F
1.2.1 Standard Operation Time for servicing the product
The following are the standard operation time for servicing the product. Those are based on the MTTR result
measured using a prototype.
The underlined parts/units are supplied as After Service Parts.
Standard Operation Time for servicing NX125/NX130 series :See Table 1-2.
Standard Operation Time for servicing T13 series:: :::: :See Table 1-3.
Table 1-2. Standard Operation Time (NX125/NX130 series)
Parts/Unit
Time (second)
Parts/Unit
Time (second)
Replace-
ment Adjust- ment Total Replace- ment Adjust- ment Total
Panel Unit 14519Printhead 364 1027 1391
Panel Board 29 5 34 Holder Contact Assy 179 1027 1206
Paper Support Assy 12 5 17 CSIC Terminal 221 1027 1248
Paper Support Tray 20 5 25 CR Contact Module 194 1027 1221
Paper Support Tray 2 26 5 31 Holder Contact 293 1027 1320
Stacker Assy 12 5 17 EJ Frame Assy 149 5 154
Tray Exit Inner 15 5 20 EJ Roller 170 768 938
Tray Exit Outer 18523EJRollerGear 134 768 902
Jam Cover 18523 Waste Ink Pads (for
flushing) 230 768 998
Document Cover 9 5 14 Cover Flushing 195 768 963
Document Pad 20525
Porous Pad Front Paper
Guide 159 5 164
ASF Cover 5 5 10 CR Motor 235 768 1003
Ink Cartridge Cover 18 5 23 Power Supply Unit 129 768 897
Rear Cover 10 5 15 Waste Ink Tray Assy 163 822 985
Scanner Unit 79 5 84 Waste Ink Pads 239 822 1061
CIS 245 5 250 Main Frame 501 768 1269
Middle Housing Assy 126 5 131 Carriage Assy 906 768 1674
Middle Housing 146 5 151 PCB Encoder 953 768 1721
USB Cover 146 5 151 Head FFC 939 768 1707
LD Roller Assy 186 768 954 Timing Belt 915 768 1683
LD Roller 227 768 995 Carriage 995 768 1763
Housing Buckler 183 5 188 Upper Paper Guide 269 768 1037
Roller Idler Pick Assy 160 5 165 Pump Assy 791 768 1559
CR Scale 181 5 186 Gear Pump Idle 797 768 1565
Main Board 150 1027 1177 Lever Pick Clutch 798 768 1566
Driven Pulley Assy 363 768 1131 Gear Pump 811 768 1579
Pick Assy 376 768 1144 Bracket Pump 832 768 1600
Cap Unit 481 768 1249 Roller Pump 827 768 1595
Lever Cleaner 175 768 943 Waste Ink Tube 892 768 1640
Cap Assy 449 768 1217 Pump Housing 892 768 1660

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Disassembly/Assembly Disassembly/Assembly Procedures 12
Epson Stylus NX125/T13/NX130 series Revision F
Waste Ink Pads
(under the Cap Assy) 409 768 1177 PF Roller 579 768 1347
PF Encoder 148 768 916 PF Motor 531 768 1299
PF Scale 170 768 938
Table 1-3. Standard Operation Time (T13 series)
Parts/Unit
Time (second)
Parts/Unit
Time (second)
Replace-
ment Adjust- ment Total Replace- ment Adjust- ment Total
Printer Cover 50 5 55 Holder Contact Assy 120 1027 1147
Panel Board 81586 CSICTerminal 162 1027 1189
Paper Support Assy 9 5 14 CR Contact Module 135 1027 1162
Paper Support Tray 17 5 22 Holder Contact 234 1027 1261
Paper Support Tray 2 23 5 28 EJ Frame Assy 90 1027 95
Stacker Assy 3 5 8 EJ Roller 111 5 879
Rear Cover 10515EJRollerGear 75 768 843
Upper Housing Assy 87 5 92 Waste Ink Pads
(for flushing) 171 768 939
Upper Housing 87 5 92 Cover Flushing 136 768 904
USB Cover 87592
Porous Pad Front Paper
Guide 100 5 105
LD Roller Assy 127 768 895 CR Motor 176 768 944
LD Roller 168 768 936 Power Supply Unit 70 768 838
Housing Buckler 124 5 129 Waste Ink Tray Assy 104 822 926
Roller Idler Pick Assy 101 5 106 Waste Ink Pads 180 822 1002
CR Scale 122 5 127 Main Frame 442 768 1210
Main Board 91 1027 1118 Carriage Assy 847 768 1615
Driven Pulley Assy 304 768 1072 PCB Encoder 894 768 1662
Pick Assy 317 768 1085 Head FFC 880 768 1648
Cap Unit 346 768 1114 Timing Belt 856 768 1624
Lever Cleaner 116 768 884 Carriage 936 768 1704
Cap Assy 390 768 1158 Pump Assy 732 768 1500
Waste Ink Pads
(under the Cap Assy) 350 768 1118 Gear Pump Idle 738 768 1506
PF Encoder 89 768 857 Lever Pick Clutch 739 768 1507
PF Scale 111 768 879 Gear Pump 752 768 1520
Upper Paper Guide 305 5 310 Bracket Pump 773 768 1541
PF Roller 476 768 1244 Roller Pump 768 768 1536
PF Motor 472 768 1240 Waste Ink Tube 833 768 1601
Printhead 305 1027 1332 Pump Housing 833 768 1601
Table 1-2. Standard Operation Time (NX125/NX130 series)
Parts/Unit
Time (second)
Parts/Unit
Time (second)
Replace-
ment Adjust- ment Total Replace- ment Adjust- ment Total

Epson Stylus NX125/T13/NX130 series Revision F
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Disassembly/Assembly Disassembling/Assembling Flowchart 13
1.2.2 Disassembling/Assembling Flowchart
1.2.2.1 Housing Part
Flowchart 1-1. Disassembling Flowchart of Housing Part
NX125 series START
A
Ink Cartridge
Cover
---
2
---
Panel Unit
ASF Cover
---
2
---
Jam Cover
---
2
(p 18)
Screw type/torque list
Symbol Screw type Torque
C.B.P-TITE SCREW 3x8 5.00.5 kgf·cm
C.B.P-TITE SCREW 3x10 5.00.5 kgf·cm
C.B.S-TITE SCREW 3x5 7.50.5 kgf·cm
C.B.P-TITE SCREW 2.6x8 4.00.25 kgf·cm
C.P.(P1) SCREW 2.6x3.5 3.50.25 kgf·cm
C.B.S-TITE SCREW 2x5 3.50.25 kgf·cm
C.B.P-TITE SCREW 2x6 3.00.25 kgf·cm
C.F.B-TITE SCREW 2.6x6 3.00.25 kgf·cm
S1
S2
S3
S4
S5
S6
S7
S8
Jam Cover
Middle
Housing
---
---
---
Panel Unit
---
4
(p 16)
Panel Board
1
---
---
S1
Document Cover
---
2
---
Document Pad
---
---
(p 16)
Stacker
---
2
---
Printer Cover
---
2
(p 20)
Paper Support
Assy
---
2
(p 30)
Panel Board
2
---
(p 22)
S1
Tray Exit Outer
---
2
---
Tray Exit Inner
---
2
---
Paper Support
Tray
---
2
---
Paper Support
Tray 2
---
2
---
Middle Housing
Assy
4
4
---
S2
Printer
Mechanizm
---
---
---
USB Cover
---
2
(p 18)
Rear Cover
---
1
---
B
(p 15)(p 14)
CIS
4
---
(p 16, p 21, p 29)
S2
Scanner Unit
4
4
(p 16, p 21)
S2
Stacker Assy
---
2
---
Paper Support
Assy
---
2
(p 29)
Rear Cover
---
1
---
Paper Support
Tray
---
2
---
Paper Support
Tray 2
---
2
---
USB Cover
---
2
(p 18)
Upper Housing
---
---
---
T13 series START
Upper Housing
Assy
2
8
(p 20)
S2
NX125/NX130 series specific parts/unit
T13 series specific parts/unit

Epson Stylus NX125/T13/NX130 series Revision F
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Disassembly/Assembly Disassembling/Assembling Flowchart 14
1.2.2.2 Printer Mechanism Part
Flowchart 1-2. Disassembling Flowchart of Printer Mechanism Part (1)
Cap Unit
---
2
(p 17)
EJ Roller Gear
---
---
---
PF Encoder
1
---
S6
1
Driven Pulley
Assy
---
---
(p 30)
Main Frame
4
5
(p 17, p 29)
S1 S3
Cap Unit
Pump Assy
---
2
(p 19)
PF Motor
3
---
(p 22)
S1
S5
2
PF Roller
---
---
(p 30)
CR Scale
---
2
(p 17)
EJ Frame Assy
2
---
(p 17)
S1
LD Roller Assy
---
2
(p 18, p 30)
Cap Assy
---
3
---
Waste Ink Pads
(under the Cap Assy)
---
---
---
Housing
Buckler
---
1
(p 18)
Upper Paper
Guide
---
6
EJ Roller
---
---
(p 29)
CR Scale
Waste Ink Pads
(for flushing)
---
---
---
PF Scale
---
---
A
LD Roller
2
---
(p 18)
S1
S8
Lever Cleaner
---
---
---
Main Board
Cover Flashing
Pick Assy
2
---
(p 21)
S1
(p 15)
(p 15)
(p 13)
Cover Flushing
1
---
---
S1
Main Board
2
3
(p 16, p 21)
S3
Main Board
2
3
(p 16, p 21)
S3
NX125/NX130 series specific parts/unit
T13 series specific parts/unit
Screw type/torque list
Symbol Screw type Torque
C.B.P-TITE SCREW 3x8 5.00.5 kgf·cm
C.B.P-TITE SCREW 3x10 5.00.5 kgf·cm
C.B.S-TITE SCREW 3x5 7.50.5 kgf·cm
C.B.P-TITE SCREW 2.6x8 4.00.25 kgf·cm
C.P.(P1) SCREW 2.6x3.5 3.50.25 kgf·cm
C.B.S-TITE SCREW 2x5 3.50.25 kgf·cm
C.B.P-TITE SCREW 2x6 3.00.25 kgf·cm
C.F.B-TITE SCREW 2.6x6 3.00.25 kgf·cm
S1
S2
S3
S4
S5
S6
S7
S8

Epson Stylus NX125/T13/NX130 series Revision F
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Disassembly/Assembly Disassembling/Assembling Flowchart 15
Flowchart 1-3. Disassembling Flowchart of Printer Mechanism Part (2)
Carriage
---
---
(p 18, p 22)
PorousPadFront
Paper Guide
---
---
(p 18)
Power Supply
Unit
1
---
(p 17)
S1
Roller Idler Pick
Assy
---
---
(p 30)
Waste Ink Pads
---
6
---
CR Motor
2
---
(p 21)
S5
B
Printhead
3
---
(p 17, p 21)
S4
CSIC Terminal
---
2
---
CR Contact
Module
---
2
---
Holder Contact
---
---
---
1
Gear Pump Idle
---
1
(p 19)
Gear Pump
---
---
(p 19)
Bracket Pump
---
---
(p 19)
Pump Housing
---
---
(p 19)
Waste Ink Tube
---
---
(p 19)
Lever Pick Clutch
---
---
(p 19)
Roller Pump
---
---
(p 19)
Carriage Assy
---
---
PCB Encoder
2
---
---
S7
Timing Belt
---
---
---
Head FFC
---
---
(p 22)
CR Motor
Holder Contact
Assy
Printhead
Waste Ink Tray
Assy
2
---
(p 19)
S1
(p 13)
(p 14) (p 14)
2
Holder Contact
Assy
---
2
---
NX125/NX130 series specific parts/unit
T13 series specific parts/unit
Screw type/torque list
Symbol Screw type Torque
C.B.P-TITE SCREW 3x8 5.00.5 kgf·cm
C.B.P-TITE SCREW 3x10 5.00.5 kgf·cm
C.B.S-TITE SCREW 3x5 7.50.5 kgf·cm
C.B.P-TITE SCREW 2.6x8 4.00.25 kgf·cm
C.P.(P1) SCREW 2.6x3.5 3.50.25 kgf·cm
C.B.S-TITE SCREW 2x5 3.50.25 kgf·cm
C.B.P-TITE SCREW 2x6 3.00.25 kgf·cm
C.F.B-TITE SCREW 2.6x6 3.00.25 kgf·cm
S1
S2
S3
S4
S5
S6
S7
S8

Epson Stylus NX125/T13/NX130 series Revision F
Disassembly/Assembly Details of Disassembling/Assembling by Parts/Unit 16
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1.3 Details of Disassembling/Assembling by Parts/Unit
Panel Unit (NX125/NX130 series)
Do not lift the Panel Unit too fast, since the Panel FFC is connected
to the back of the Panel Unit.
Panel Unit
Panel FFC
Document Pad (NX125/NX130 series)
When installing the Document Pad, follow the procedure below.
1. Place the Document Pad with the side where the double-sided
tape attached upward on the document glass aligning its corner
with the origin position.
2. Close the Document Cover to attach the Document Pad.
Standard line
Double-sided tape
Document Cover
Document Pad
Origin Position
Scanner Unit (NX125/NX130 series)
Do not lift the Scanner Unit too fast, since the Panel FFC, Scanner Motor cable and Scanner FFC are connected to the rear side of the Scanner Unit.
Tighten the screws in the order indicated in figure above.
3
Panel FFC
Scanner FFC
Scanner Motor cable
Scanner
Unit
Scanner Unit
12
4
C.B.P-TITE SCREW 3x10 (5.0 ±0.5 kgf·cm)
CIS (NX125/NX130 series)
Be careful not to lose the Spacer because it comes off easily when disassembling the CIS.
When installing the spacers, be sure to place them with the cutout facing inward.
Align the toothed side of the Timing Belt with the same shaped rib of the backside of the CIS, and secure the Timing Belt with Torsion Spring.
Spacer
Backside of the CIS Timing Belt
Torsion Spring
Toothed
side
CIS
Main Board
Take care not to damage the PE Sensor Lever.
Align the ribs (x3) of the Main Frame with the cutouts of the Main Board.
Main Board
PE Sensor Lever
Rib
Main Board

Epson Stylus NX125/T13/NX130 series Revision F
Disassembly/Assembly Details of Disassembling/Assembling by Parts/Unit 17
Confidential
Power Supply Unit
Route the Power Supply Unit cable through the hole of the Frame
Base.
Power Supply Unit Power Supply Unit
Hole
Power Supply Unit Cable
EJ Frame Assy
Tighten the screws in the order indicated in figure above.
12
EJ Frame Assy
C.B.P-TITE SCREW 3x8 (5.0 ±0.5 kgf·cm)
Cap Unit
When installing the Cap Unit, follow the instruction below.
1. Temporarily secure the Cleaner Case Spring to the hook and dowel of the Frame Base.
2. Insert the Waste Ink Tube to the Cap Unit until point A (p 19) is hidden.
3. Install the Cap Unit to the Frame Base, and attach the Cleaner Case Spring which is secured temporary earlier to the hook on the Cap Unit.
4. Insert one leg of the Cleaner Lever Spring to the hole of the Frame Base, and secure it to the dowel of the Frame Base, then secure the other leg
to the protrusion of the Lever Cleaner.
Cleaner Lever Spring
Dowel Hole
Lever Cleaner
Protrusion
Waste Ink Tube Point A
Cleaner Case Spring
Hook
Cleaner Case Spring
Cap Unit
Cap Unit
Dowel for temporarily secure
Frame Base
Step 1 Step 2
Step 3 Step 4
Hook
Main Frame
When installing the Grounding Spring of the lower part of the 80-digit side, follow the instruction below.
1. Insert the tip of the spring to the hole of the Frame Base.
2. Attach the eye of the spring to the Bracket and secure the other eye to the hook on the Main Frame.
When installing the Extension Spring of the lower part of the 0-digit side, attach the tip of the Extension Spring to the hole of the Frame Base
first. Then attach the leg of the spring to the cutout of the Main Frame from the left side as seen from the rear of the printer.
Tighten the screws in the order indicated in figure above.
Hook
Grounding Spring
Hole
Bracket
Main
Frame
Lower part of 80-column side
1
Main Frame
2
3
4
Main FrameLeft Side Right Side
C.B.P-TITE SCREW 3x8 (5.0 ±0.5 kgf·cm)
C.B.S-TITE SCREW 3x5 (7.5 ±0.5 kgf·cm)
Cutout
Hole
Lower part of 0-column side
Extension Spring
Printhead
Insert the folded part of the Head FFC into the groove of the FFC
Cover.
FFC Cover
Head FFC
Groove
FFC Cover
Groove
Head FFC
CR Scale
When installing the CR Scale, confirm that the arrows on both
the edges of the CR Scale face upward.
When installing the Extension Spring, be sure to attach it with
its leg facing the rear of the printer.
CR Scale
Extension Spring

Epson Stylus NX125/T13/NX130 series Revision F
Disassembly/Assembly Details of Disassembling/Assembling by Parts/Unit 18
Confidential
LD Roller Assy
When removing the LD Roller Assy, follow the procedure below.
1. Release the hooks (x2) and remove the Gear 23T.
2. Release the hooks (x2) and slide the Shaft Gear 24T to the 0-digit side until the concave section of the gear comes to the bearing part of the
Pick Assy.
3. Remove the LD Roller Assy upward.
When removing the LD Roller, remove the screws (x2) shown in the figure above.
When install the Torsion Spring, make sure to align the leg to the position as shown above.
Pick Assy
Step 2, 3
Shaft Gear 24TConcave sectionBearing
C.B.P-TITE SCREW 3x8 (TBD)
C.F.B-TITE SCREW 3x5 (TBD)
Hook
Step 1 Gear 23T
Step 2
Shaft Gear 24T
LD Roller Assy LD Roller
LD Roller Assy
Torsion Spring
Leg of the
spring
Housing Buckler
When installing the Friction Buckler and Friction Buckler R to the Housing Buckler, pay attention to the following instructions.
• Remove the Sheet BF2-A on the rear side of the Friction Buckler to be replaced, and secure the removed sheet with double-sided tape to the
new Friction Buckler.
• Install the friction bucklers to the Housing Bucklers with the cutouts facing forward.
Install the buckler to the position as shown above.
Friction Buckler R
Housing Bucklers Friction Buckler
Cutouts
Friction Buckler
Friction Buckler R
Friction Buckler
Sheet BF2-A
Double-sided
tape
Housing Buckler (Friction Buckler)
Housing Buckler (Friction Buckler R)
Carriage
When replacing the Carriage, be careful about the following and
remove the Grounding Plate, Guide Carriage, Compression Springs
from the Carriage to be replaced, then attach them to the new
Carriage as shown in the figure above.
Insert the protrusion of the Grounding Plate to the hole of the
Carriage, and align the dowels (x3) of the Carriage with the
positioning holes (x3) of the Grounding Plate.
Secure hooks (x2) of the Guide Carriage by attaching them on
the holes (x2) of the Carriage.
Grounding Plate
Guide Carriage
Compression Spring
Positioning Hole and Dowel
Hook
Protrusion
Compression Spring
Porous Pad Front Paper Guide
When installing the Porous Pad Front Paper Guide, align the pad
with the ribs and protrusions of the Platen. After installing the pad,
make sure to fit it evenly 1.5mm lower than the standard surface.
Standard surface:
In the area with concaves and convexes on the
Porous Pad Front Paper Guide, use the level
of the concave section as a standard surface.
Rib
Protrusion
Jam Cover
When removing the Jam Cover, be careful not to lose the spring
installed to the dowel on the right side.
Jam Cover
Spring
Jam Cover
USB Cover
The USB Cover cannot be re-used once it is removed. Whenever
the cover is removed, make sure to replace it with a new one.
When removing the USB Cover, cut the hook securing the USB
Cover with a nipper. Be careful not to damage the Upper Housing
then.
Hook
USB Cover

Epson Stylus NX125/T13/NX130 series Revision F
Disassembly/Assembly Details of Disassembling/Assembling by Parts/Unit 19
Confidential
Gear Pump Idle/ Gear Pump/ Bracket Pump/ Roller Pump/ Waste Ink Tube/ Pump Housing
When assembling the Pump Assy, follow the instructions below.
1. Make six points on the Waste Ink Tube.
2. Insert the Waste Ink Tube in the hole of the Pump Housing with the red line of the tube set as shown in the figure above.
3. Secure point C of the Waste Ink Tube to the point C of the Pump Housing.
4. Secure point D of the Waste Ink Tube to the point D of the Pump Housing.
5. Install the Roller Pump to the Bracket Pump.
6. Set the Waste Ink Tube inside the Bracket Pump, and install the Bracket Pump to the Pump Housing.
7. Rotate the Bracket Pump shaft and make sure that the Roller Pump shaft moves to both ends in the groove.
8. Make sure that point D is placed in the correct position.
9. Install the Gear Pump.
10. Install the Gear Pump Idle.
11. Install the Lever Pick Clutch.
Step 10, 11
Lever Pick Clutch Gear Pump Idle
Step 7
Roller Pump shaft
Groove
Bracket Pump shaft
Step 6
Pump Housing
Bracket Pump
Waste Ink Tube
Pump Housing
Point D
Step 4, 8
Step 2,3
Point C
Pump Housing
Waste Ink Tube
Step 1
Waste Ink Tube
ABC D EF
101 mm
110.51 mm 1101 mm 391 mm
101 mm
191 mm
Step 5 Bracket Pump
Roller Pump
Step 9
Gear Pump
Cap Unit side Waste Ink Tray Assy side
Pump Assy
Route the Ink Tube along the ribs on the Frame Base.
After installing the Ink Tube, make sure that no part of the tube
is pressed flat.
Rib
Waste Ink Tube
Waste Ink Tray Assy
When installing the Waste Ink Tube, pay attention to the following
instructions.
Align and secure the point E (p 19) of the Waste Ink Tube to
the hook on the Frame Base.
Insert the Holder Tube up to the point F(p 19) of the Waste Ink
Tube, and insert the holder into the Duct Tube End.
Waste Ink Tube
Point E Point F
Holder Tube
Waste Ink Unit Hook
Duct Tube End
Holder Tube

Epson Stylus NX125/T13/NX130 series Revision F
Disassembly/Assembly Details of Disassembling/Assembling by Parts/Unit 20
Confidential
Upper Housing Assy (T13 series)
Do not lift the Upper Housing too fast, since the Panel FFC is connected to the back of the Upper Housing.
Be careful not to damage the hooks (x2) on the bottom left because these cannot be seen when removing.
Lay the Printer with the rear side facing downward, and release the hooks (x8) from the hole on the bottom.
Bottom side
Hook
Upper Housing
Upper Housing
Panel FFC
Printer Cover (T13 series)
Be careful when removing the Printer Cover, because the hooks
(x2) are fragile and easily get damaged or softened.
Printer Cover
Hook