Epson C110, C120, D120 Service manual

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SERVICE MANUAL

Color Inkjet Printer

EPSON Stylus C110/C120/D120

WorkForce 30 Stylus OFFICE B30/T30/T33 ME OFFICE 70

Confidential

SEIJ07-001

Notice:

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

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

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

informed of them.

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

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

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

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

Imaging Products CS, PL & Environmental Management

Confidential

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.

Confidential

About This Manual

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

C H E C K

P O I N T

W A R N I N G

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

Manual Configuration

This manual consists of six chapters and Appendix.

CHAPTER 1.PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2.OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3.TROUBLESHOOTING

Describes the step-by-step procedures for the troubleshooting.

CHAPTER 4.DISASSEMBLY / ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling the product.

CHAPTER 5.ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 6.MAINTENANCE

Provides preventive maintenance procedures and the lists of Epsonapproved lubricants and adhesives required for servicing the product.

APPENDIX Provides the following additional information for reference:

• Exploded Diagram

• Parts List

Symbols Used in this Manual

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

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

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

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

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

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

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Revision Status

Revision Date of Issue Description

A August 9, 2007 First Release

B September 21, 2007 Chapter 1

• 1.2.1 Basic Specifications (p. 10) Note about a special nozzle of each color on the Printhead was added.

• 1.2.3 Supported Paper (p. 12) Note about nominal weight was added.

Chapter 2

• 2.1.2 Motors & Sensors (p. 22) Note about a special nozzle of each color on the Printhead was added.

• 2.2.1 Printhead (p. 23) Note about a special nozzle of each color on the Printhead was added.

Chapter 4

• 4.1.2 Tools (p. 63) The Upper Case Opener was added.

• 4.3.4 Upper Housing/Cover Open Sensor (p. 67) CheckPoint of removing the Right Front Cover was added.

C August 6, 2008 All Chapter

• The product names on the top page and the header of each chapter were revised due to the additional information on EPSON WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70.

• "Confidential" was added to all the pages.

Chapter 1

• 1.2.3 Supported Paper (p. 12) The Photo Paper was added.

• 1.2.5 Ink Cartridge (p. 14) The product numbers of the EPSON ink cartridges were added for WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70.

• 1.3 Interface (p. 15) The Device IDs were added for EPSON WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70.

• 1.4.1 Electrical Specifications (p. 16) The Power consumption was added for EPSON WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70.

• 1.4.5 Safety Approvals (Safety standards/EMI) (p. 17) Safety Approvals were changed.

Chapter 2

• Electrical Circuit Operating Principles were deleated.

Chapter 7

• Electrical Circuits were deleated.

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Contents

Chapter 1 PRODUCT DESCRIPTION

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

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

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

1.2.2 Print Mode .................................................................................................. 10

1.2.3 Supported Paper.......................................................................................... 12

1.2.4 Printing Area............................................................................................... 14

1.2.5 Ink Cartridge............................................................................................... 14

1.3 Interface............................................................................................................... 15

1.4 General Specifications......................................................................................... 16

1.4.1 Electrical Specifications ............................................................................. 16

1.4.2 Environmental Conditions .......................................................................... 16

1.4.3 Durability.................................................................................................... 17

1.4.4 Acoustic Noise............................................................................................ 17

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

1.5 Operation Buttons & Indicators (LEDs).............................................................. 17

1.5.1 Operation Buttons....................................................................................... 17

1.5.2 Indicators (LEDs) ....................................................................................... 17

1.5.3 Operation Buttons & LEDs Functions........................................................ 18

1.5.4 Errors & Remedies ..................................................................................... 19

Chapter 2 OPERATING PRINCIPLE

2.1 Overview ............................................................................................................. 21

2.1.1 Printer Mechanism...................................................................................... 21

2.1.2 Motors & Sensors ....................................................................................... 22

2.2 Printer Mechanism Operating Principles ............................................................ 23

2.2.1 Printhead..................................................................................................... 23

2.2.2 Carriage Mechanism................................................................................... 25

2.2.3 Paper Loading/Paper Feed Mechanism ...................................................... 26

2.2.4 Ink System Mechanism .............................................................................. 31

2.2.5 Ink Sequence............................................................................................... 34

Chapter 3 TROUBLESHOOTING

3.1 Overview ............................................................................................................. 36

3.1.1 Specified Tools ........................................................................................... 36

3.1.2 Preliminary Checks..................................................................................... 36

3.2 Troubleshooting................................................................................................... 37

3.2.1 Motor and Sensor Troubleshooting ............................................................ 37

3.2.2 Error Indications and Fault Occurrence Causes ......................................... 38

3.2.3 Superficial Phenomenon-Based Troubleshooting ...................................... 56

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Chapter 4 DISASSEMBLY/ASSEMBLY

4.1 Overview ............................................................................................................. 63

4.1.1 Precautions.................................................................................................. 63

4.1.2 Tools ........................................................................................................... 63

4.1.3 Work Completion Check ............................................................................ 64

4.2 Disassembly Procedures...................................................................................... 65

4.3 Removing Housing.............................................................................................. 66

4.3.1 Paper Support Assy..................................................................................... 66

4.3.2 Stacker Assy. .............................................................................................. 66

4.3.3 Cover Printer............................................................................................... 67

4.3.4 Upper Housing/Cover Open Sensor ........................................................... 67

4.4 Removing Board.................................................................................................. 69

4.4.1 Main Board Unit/Left Frame ...................................................................... 69

4.4.2 Panel Unit ................................................................................................... 71

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

4.5 Disassembling Printer Mechanism ...................................................................... 74

4.5.1 Removing Printer Mechanism (Lower Housing) ....................................... 74

4.5.2 Printhead ..................................................................................................... 75

4.5.3 CR Scale ..................................................................................................... 77

4.5.4 Hopper ........................................................................................................ 78

4.5.5 Front Frame/Right Frame ........................................................................... 79

4.5.6 Star Wheel Holder Assy. ............................................................................ 80

4.5.7 EJ Roller ..................................................................................................... 81

4.5.8 PF Encoder Sensor...................................................................................... 82

4.5.9 PF Scale ...................................................................................................... 83

4.5.10 PF Motor................................................................................................... 83

4.5.11 CR Motor .................................................................................................. 85

4.5.12 Main Frame Assy...................................................................................... 86

4.5.13 CR Unit..................................................................................................... 89

4.5.14 Upper Paper Guide ................................................................................... 90

4.5.15 ASF Unit................................................................................................... 91

4.5.16 Ink System Unit ........................................................................................ 92

4.5.17 Front Paper Guide..................................................................................... 95

4.5.18 PF Roller................................................................................................... 96

4.5.19 Waste Ink Pads ......................................................................................... 97

Chapter 5 ADJUSTMENT

5.1 Adjustment Items and Overview......................................................................... 99

5.1.1 Servicing Adjustment Item List.................................................................. 99

5.1.2 Required Adjustments .............................................................................. 101

5.2 Using the Adjustment Program ......................................................................... 103

5.2.1 TOP Margin Adjustment .......................................................................... 103

5.2.2 First Dot Position Adjustment .................................................................. 103

5.2.3 Head Angular Adjustment........................................................................ 104

5.2.4 Bi-D Adjustment....................................................................................... 104

5.2.5 PF Adjustment .......................................................................................... 105

5.2.6 PF Band Adjustment................................................................................. 106

Chapter 6 MAINTENANCE

6.1 Overview ........................................................................................................... 108

6.1.1 Cleaning.................................................................................................... 108

6.1.2 Service Maintenance................................................................................. 108

6.1.3 Lubrication................................................................................................ 109

Chapter 7 APPENDIX

7.1 Exploded Diagram / Parts List .......................................................................... 114

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PRODUCT DESCRIPTION

CHAPTER

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Paper Support & Stacker are Closed

Paper Support & Stacker are Opened

1.1 Features

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/ T33/ME OFFICE 70 are single-function color ink-jet printers. The main features are;

 High speed & High quality

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

 Newly developed F3-3 Mach Turbo II Printhead achieves higher black&white

print speed than ever.

 Installs two black ink cartridges as standard.

 Newly developed pigment ink is employed.

 Borderless printing on specified EPSON brand paper is available.

 Control panel

Simple design with three buttons and three indicators (LED).

 Dimensions

 Dimensions: 435 mm (W) x 240 mm (D) x 161 mm (H)

(Paper support and stacker are closed. Rubber feet are excluded)

 Weight: 3.9 kg (without ink cartridges)

Figure 1-1. External View

PRODUCT DESCRIPTION Features 9

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

1.2 Printing Specifications

1.2.1 Basic Specifications

Table 1-1. Printer Specifications

Item Specifications

Print method On-demand ink jet

Nozzle configuration Black:180 nozzles x 2

Color: 60 nozzles x 3 (Cyan, Magenta, Yellow)*

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

Print resolution Horizontal x Vertical (dpi)

• 360 x 180 • 720 x 720

• 360 x 360 • 1440 x 720

• 360 x 720 • SMGA 5760 x 1440 (1440 x 1440)

Control code • ESC/P Raster command

• EPSON Remote command

Input buffer size T.B.D. Kbytes

Paper feed method Friction feed, using one 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 Programmable in 0.01764 mm (1/1440 inch) steps

Note * : The No.1 nozzle of each color is used only for executing flushing, and is not used for

printing.Refer to “ 2.2.1 Printhead ” (p.23)

1.2.2 Print Mode

Media

• Plain paper

• Premium Bright White Paper (EAI)

• Premium Ink Jet Plain papers (others)

• Ultra Premium Glossy Photo Paper (EAI)

• Ultra Glossy Photo Paper (others)

• Premium Photo Paper Glossy (EAI)

• Premium Glossy Photo Paper (others)

• Photo Paper Glossy (EAI)

• Glossy Photo Paper (others)

Table 1-2. Print Mode (Color)

Mode

Draft 1 360x180

Draft 2 360x180

Normal 2 360x360

Normal 3 360x360

Fine 360x720

Photo 2 720x720

Best Photo 1440x720

Photo RPM 1440x1440

Fine 360x720

Photo 1 720x720

Best Photo 1440x720

Photo RPM 1440x1440

Fine 360x720

Photo 1 720x720

Best Photo 1440x720

Resolution

(H x V) dpi

Dot Size

(cps)

(400cps)

VSD1

(320cps)

VSD1

(320cps)

VSD2

(245cps)

VSD3

(245cps)

VSD3

(245cps)

VSD3

(245cps)

VSD2

(245cps)

VSD2

(245cps)

VSD3

(245cps)

VSD3

(245cps)

VSD2

(245cps)

VSD2

(245cps)

VSD3

(245cps)

Eco

Bi-d

Micro

Weave

ON OFF N/A

ON ON N/A

ON ON OK

Border-

less

PRODUCT DESCRIPTION Printing Specifications 10

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Table 1-2. Print Mode (Color)

Media

• Premium Photo Paper Semi-Gloss (EAI)

• Premium Semigloss Photo Paper (others)

• Premium Presentation Paper Matte (EAI)

• Matte Paper Heavyweight (others)

• Photo Quality Inkjet Paper* (others)

• Envelope

Note * : Not supported in EAI.

Mode

Photo 1 720x720

Best Photo 1440x720

Photo 1 720x720

Best Photo 1440x720

Photo 1 720x720

Best Photo 1440x720

Normal 2 360x360

Resolution

(H x V) dpi

Fine 360x720

Dot Size

(cps)

VSD2

(245cps)

VSD2

(245cps)

VSD3

(245cps)

VSD2

(245cps)

VSD3

(245cps)

VSD2

(245cps)

VSD3

(245cps)

VSD1

(320cps)

VSD2

(245cps)

Bi-d

OFF OFF N/A

OFF ON N/A

Micro

Weave

ON ON OK

ON ON N/A

Border-

less

Media

• Plain paper

• Premium Bright White Paper (EAI)

• Premium Inkjet Plain Paper (others)

• Premium Presentation Paper Matte (EAI)

• Matte Paper Heavyweight (others)

• Photo Quality Inkjet Paper* (others)

• Envelope

Table 1-3. Print Mode (Monochrome)

Mode

Draft 3 360x360

Draft 4 360x360

Normal 1 360x360

Normal 3 360x360

Fine 360x720

Photo 2 720x720

Photo 1 720x720

Best Photo 1440x720

Photo 1 720x720

Best Photo 1440x720

Normal 1 360x360

Fine 360x720

Resolution

(H x V) dpi

Dot Size

(cps)

Eco

(400cps)

Eco

(400cps)

VSD1

(320cps)

VSD1

(320cps)

VSD2

(245cps)

VSD3

(245cps)

VSD2

(245cps)

VSD3

(245cps)

VSD2

(245cps)

VSD3

(245cps)

VSD1

(320cps)

VSD2

(245cps)

Bi-d

OFF OFF N/A

OFF ON N/A

Micro Weave

ON OFF N/A

ON ON N/A

ON ON OK

ON ON N/A

ON ON OK

ON ON N/A

Border-

less

Note * : Not supported in EAI

PRODUCT DESCRIPTION Printing Specifications 11

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

1.2.3 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 1-4. Supported Paper

EAI EUR Asia

Y - Y - Y -

Plain paper

Paper Name Paper Size

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 -

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

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 -

Thickness

(mm)

0.08-0.11

Weight

64-90 g/m

(17-24 lb.)

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

Letter 215.9 x 279.4 mm (8.5”x11”) 0.11

Premium Bright White Paper (EAI) Bright White Inkjet Paper (Euro, Asia)

A4 210 x 297 mm (8.3”x11.7”) 0.13

Letter 215.9 x 279.4 mm (8.5”x11”)

A4 210 x 297 mm (8.3”x11.7”) - Y Y Y Y Y Ultra Premium Glossy Photo Paper (EAI)*3 Ultra Glossy Photo Paper (Euro, Asia)*3

8” x 10” 203.2 x 254 mm Y Y - - - -

0.30

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”)

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

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

8” x 10” 203.2 x 254 mm Y Y - - - -

0.27

5” x 7” 127 x 178 mm Y Y Y Y Y Y

4" x 6

101.6 x 152.4 mm Y Y Y Y Y Y

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

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.)

Y - Y - Y -

- - Y - Y -

Y - - - - -

- - Y - Y -

Y Y - - - -

PRODUCT DESCRIPTION Printing Specifications 12

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

Table 1-4. Supported Paper

Paper Name Paper Size

Letter 215.9 x 279.4 mm (8.5”x11”)

Thickness

(mm)

Weight

EAI EUR Asia

Y Y - - - -

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

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

0.25

5” x 7” 127 x 178 mm - - 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 (Euro, Asia)

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

0.27

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 Presentation Paper Matte (EAI) Matte Paper-Heavyweight (Euro, Asia)

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

0.23

8” x 10” 203.2 x 254 mm Y Y - - - -

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

Photo Paper

A4 210 x 297 mm (8.3”x11.7”) 0.21

#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 -

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

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

*3 : The nominal weight is 300 g/m

*4 : Only WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70

 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.

258 g/m

(68 lb.)

Y Y - - - -

250 g/m

(66 lb.)

Y Y - - - -

167 g/m

(44 lb.)

(27 lb.)

(55 lb.)

- - Y - Y -

- - Y Y Y Y

102 g/m

206 g/m

Y - Y - Y -

75-100 g/m

(20-27 lb.)

PRODUCT DESCRIPTION Printing Specifications 13

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Print Area

LM RM

Cut Sheet (Standard)

Cut Sheet (Borderless)

Paper SIze

Print Area

LM RM

Print Area

Envelope

Paper Size

Paper Feed Direction

1.2.4 Printing Area

The printing area for this printer is shown below.

Table 1-5. Printing Area (Margins)

Margin

2.3 mm* 3.67 mm*

Print Mode Paper Size

Standard print

Borderless print

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

Any size 3 mm 3 mm 3 mm 3 mm

Envelope 5 mm 5 mm 3 mm 20 mm

A4/Letter to 5” x 7”

4” x 6” 2.3 mm* 3.39 mm*

Figure 1-2. Printing Area

Left Right Top Bottom

2.54 mm* 2.54 mm*

1.2.5 Ink Cartridge

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

 Product No. of Ink Cartridges

Table 1-6. EPSON Stylus C110/C120/D120

Color EAI Latin Euro CISMEA Asia

Black T0681 (S) T0731H (S)

Cyan T0692 (3S) T0732 (3S) T0712 (3S) T0732 (3S) T0732 (3S)

Magenta T0693 (3S) T0733 (3S) T0713 (3S) T0733 (3S) T0733 (3S)

Yellow T0694 (3S) T0734 (3S) T0714 (3S) T0734 (3S) T0734 (3S)

Note * : Not supported for EHK.

T0711H (S)

T0711 (2S)

Table 1-7. EPSON WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/

ME OFFICE 70

Color EAI Latin Euro

Black

Cyan

Magenta

Yellow

Note * : Not supported for North Latin.

T0681 (S)

T0691 (2S)

T0682 (2S)

T0692 (3S)

T0683 (2S)

T0693 (3S)

T0684 (2S)

T0694 (3S)

T0731HN (S)

T1151 (S)*

T0732N (2S)

T0733N (2S)

T0734N (2S)

T0711H (S)

T0711 (S)

T1002 (S)

T0712 (3S)

T1003 (S)

T0713 (3S)

T1004 (S)

T0714 (3S)

 Shelf life

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

 Storage Temperature

Table 1-8. Storage Temperature

Situation Storage Temperature Limit

When stored in individual boxes

When installed in main unit

-20 oC to 40 oC

F to 104oF)

(-4

-20 oC to 40 oC

(-4oF to 104oF)

T0731H (S) T0731 (2S)

CISMEA/

Asia

T0731HN (S)

T0731N (2S)

T1032 (S)

T0732N (3S)

T1033 (S)

T0733N (3S)

T1034 (S)

T0734N (3S)

1 month max. at 40 oC (104oF)

T0731H (S)*

T0731 (2S)

ECC

T1191 (S)

T1091 (2S)

T1092 (2S)

T1093 (2S)

T1094 (2S)

PRODUCT DESCRIPTION Printing Specifications 14

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C A U T I O N

 Dimension

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

 The ink cartridge cannot be refilled. 

Do not use expired ink cartridges.



The ink in the ink cartridge freezes at -16 °C (3.2 oF). It takes about three hours under 25 °C (77 usable.

F) until the ink thaws and becomes

1.3 Interface

The printer has a USB interface of the following specification.

 Standards

 “Universal Serial Bus Specifications Revision 2.0”

“Universal Serial Bus Device Class Definition for Printing Devices Version 1.1”



 Transfer rate: 480 Mbps (High Speed Device)

 Data format: NRZI

 Compatible connector: USB Series B

 Recommended cable length: 2 [m] or less

 Device ID

 When IEEE 1284.4 is Enabled

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

 When IEEE 1284.4 is Disabled

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

Table 1-9. Model Name

Product Name Model Name

Stylus C120 Stylus[SP]C120

Stylus D120 Stylus[SP]D120

Stylus C110 Stylus[SP]C110

WorkForce 30 T.B.D

Stylus OFFICE B30 T.B.D

Stylus OFFICE T30 T.B.D

Stylus OFFICE T33 T.B.D

ME OFFICE 70 T.B.D

PRODUCT DESCRIPTION Interface 15

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C A U T I O N

10/50

27/80

35/9520/68

Temperature (°C/°F)

Humidity (%)

30/86 40/104

1.4 General Specifications

1.4.1 Electrical Specifications

 Primary power input

Table 1-10. Primary Power Specifications

Item 100-120 V model 220-240 V model

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

Input voltage range 90 to 132 VAC 198 to 264 VAC

Rated current 0.6 A 0.3 A

Rated frequency 50 to 60 Hz

Input frequency range 49.5 to 60.5 Hz

Insulation resistance 3000 V (for one minute)

Energy conservation International Energy Star Program compliant

Power consumption

 Stylus C110/C120/D120

Approx. 15 W (ISO10561 Letter Pattern)

Printing

 WorkForce 30/EPSON

Stylus OFFICE B30/T30/ T33/ME OFFICE 70 Approx. 15 W (ISO/IEC24712 Pattern)

Sleep Approx. 2.0 W Approx. 2.0 W

Off Approx. 0.2 W Approx. 0.4 W

 Stylus C110/C120/D120

Approx. 15 W (ISO10561 Letter Pattern)

 WorkForce 30/EPSON

Stylus OFFICE B30/T30/ T33/ME OFFICE 70 Approx. 15 W (ISO/IEC24712 Pattern)

1.4.2 Environmental Conditions

Table 1-11. Environmental Conditions

°F)

Humidity

20 to 80%

Condition Temperature

Operating

Storage

(unpacked)

10 to 35°C

(50 to 95

-20 to 40°C*

(-4°F to 104°F)

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

range in

Fig.1-3.

*2 : No condensation

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

5 to 85%

*1,2

Shock Vibration

(1 msec or less)

(2 msec or less)

0.15G, to 55Hz

0.50G, to 55Hz

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

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

PRODUCT DESCRIPTION General Specifications 16

Figure 1-3. Temperature/Humidity Range

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

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

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

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

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Power Button Paper ButtonInk Button

Power LED Paper LEDInk LED

1.4.3 Durability

 Total print life: Black 20,000 pages (A4, 3.5% duty),

Color 10,000 pages (A4, ISOFDC24712), or five years which ever comes first

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

first

1.4.4 Acoustic Noise

Max. 55dB (when printing from PC, on A4, in default mode)

1.4.5 Safety Approvals (Safety standards/EMI)

USA UL60950-1

FCC Part15 Subpart B Class B

Canada CSA C22.2 No.60950-1

CAN/CSA-CEI/IEC CISPR 22 Class B Mexico NOM-019-SCFI-1998 Taiwan CNS13438 Class B

CNS14336 (IEC60950) EU EN60950-1

EN55022 Class B

EN61000-3-2, EN61000-3-3

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

KN22 Class B

KN61000-4-2/-3/-4/-5/-6/-11 China GB4943 / GB9254 Class B, GB17625.1

GB8898* / GB13837 Class B* Argentina IEC60950-1 Australia AS/NZS CISPR22 Class B

1.5 Operation Buttons & Indicators (LEDs)

1.5.1 Operation Buttons

The printer has the following three operation buttons.

Table 1-12. Operation Buttons

Button Function

Power Turns the power ON/OFF.

Ink Runs a sequence of ink cartridge replacement or cleaning.

Paper Feeds or ejects paper.

1.5.2 Indicators (LEDs)

Three indicators (LEDs) are provided to indicate settings or printer status.

Table 1-13. Indicators (LEDs)

LED Function

Lights at power-on.

Power LED (green)

Ink LED (orange)*

Paper LED (orange)*

Note *1 : The Ink LED and Paper LED stay OFF when printing from PC.

*2 : See Table 1-15 “Indicators (LEDs) Function” for the LED status at error

occurrence.

Flashes during some sequence is in progress.

Flashes at high speed during power-OFF sequence.

Lights or flashes when an ink-related error occurs.*

Lights or flashes when an paper-related error occurs.*

Note * : Only WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70

Figure 1-4. Buttons & LEDs

PRODUCT DESCRIPTION Operation Buttons & Indicators (LEDs) 17

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360 dpi VSD1

0.142 mm (1/180 inch)

32 dots

Note : The numbers shown in the figure are nozzle numbers. They are not printed on

an actual nozzle check pattern.

1.5.3 Operation Buttons & LEDs Functions

Detailed information on the buttons and LEDs functions are listed below.

Table 1-14. Operation Button Functions

Button Function

Power • Turns the power ON/OFF

• Runs a sequence of ink cartridge replacement. The carriage moves to set the ink cartridge to the position for replacement.

• Moves the carriage to the ink check position when ink level

Ink

Paper

Ink (when held for three seconds or longer)

Power + Paper * (combination)

Power + Ink * (combination)

low, ink out, or no ink cartridge error has occurred.

• When an ink cartridge is at the ink check position, moves the carriage to set the cartridge to the position for replacement, or to the ink check position.

• When an ink cartridge is at the ink replacement position, moves the carriage to the home position.

• Feeds or ejects paper.

• Recovers from a multi-feed error and resumes the print job.

• Feeds paper that is loaded on the tray when a no-paper error has occurred.

• Ejects a jammed paper when a paper jam error has occurred.

• Cancels the print job during printing.

• Runs a head cleaning.

• Runs a sequence of ink cartridge replacement when ink level low, ink out, or no ink cartridge error has occurred.

• Prints a nozzle check pattern.*

• Forcefully turns the power OFF.

Figure 1-5. Nozzle Check Pattern

Note 1: First press the Paper button and then Power button. The printer will turn On and print

the nozzle check pattern.

2: First press the Power button and then Ink button. Hold them for seven seconds.

3: The nozzle check pattern printed by the printer is shown in Figure 1-5.

PRODUCT DESCRIPTION Operation Buttons & Indicators (LEDs) 18

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Table 1-15. Indicators (LEDs) Function

Printer Status

Powering off

Fatal error OFF

Maintenance request OFF

Paper jam -- -- Flashes 5

Multi-feed error -- -- ON 6

No paper error -- -- ON 6

Cover open error -- Flashes 2 Flashes 2 6

Ink cartridge replacement is in progress

Ink sequence is in progress Flashes -- -- 8

CSIC error -- ON -- 9

No ink cartridge error or ink-out error -- ON -- 9

During feeding or ejecting paper Flashes -- -- 10

Data processing Flashes -- -- 10

Ink level low error -- Flashes -- 11

Power ON ON -- -- 12

Reset request*

Power Ink Paper

Flashes at

high speed

Flashes -- -- 7

Indicators (LEDs)

OFF OFF 1

Flashes at

high speed

Flashes

alternately 2

ON ON ON -

Flashes at

high speed

Flashes

alternately 1

Pri-

ority*

1.5.4 Errors & Remedies

Fatal error A mechanical error has occurred.

Maintenance request

Paper jam A paper jam has occurred.

No paper Failed to feed paper.

Multi-feed

Ink-out The cartridge has run out of ink. Replace the ink cartridge.

No ink cartridge Ink cartridge(s) was not detected. Replace the ink cartridge.

Wrong ink cartridge

Note : For more information on the remedies, see “ 3.2.2 Error Indications and Fault Occurrence

Error Description Remedies

Turn the power Off and back it On.

Waste ink pads need to be replaced.

Multiple sheets of paper were fed at the same time.

Incorrect ink cartridge(s) was detected.

Causes ” (p.38).

Replace the waste ink pads and reset the counter.

Remove the jammed paper and press the Paper button.

Load paper correctly and press the Paper button.

Press the Paper button to eject the multiple sheets.

Replace the ink cartridge.

Note : --: No change

Flash: Repeats turning On and Off every 1.25 seconds. Flash 2: Repeats On for 0.5 seconds, Off for 0.5 seconds,

On for 0.5 seconds, and Off for 1.0 second. Flash at high speed: Repeats turning On and Off every 0.5 seconds. Flashes alternately 1: same as the “Flash” Flashes alternately 2: Repeats turning Off and On every 1.25 seconds.

Note *1 : When two or more errors occur at the same time, the one with higher priority will be

indicated.

*2 : All LEDs light for 0.2 seconds when a reset request is received.

PRODUCT DESCRIPTION Operation Buttons & Indicators (LEDs) 19

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OPERATING PRINCIPLE

CHAPTER

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Compression Spring

LD Roller

Retard Roller

Clutch Mechanism

PE Sensor

PF Motor

Ink System

Carriage

Unit

CR Encoder Sensor

PF Roller

Timing Belt

EJ Roller

Star Wheel

Roller

PF ScalePF Encoder Sensor

CR Motor

Cover Open

Sensor

Change Lever

2.1 Overview

This section describes the operating principles of the Printer Mechanism.

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/ T33/ME OFFICE 70 employs a newly developed printer mechanism. The following sections explain about the major components of the new printer mechanism.

2.1.1 Printer Mechanism

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/ T33/ME OFFICE 70 printer mechanism consists of printhead, carriage mechanism, paper loading mechanism, paper feed mechanism, and ink system.

As the conventional models, EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 is equipped with two DC motors; one is used to drive the paper loading, paper feed mechanisms, and the pump mechanism that includes the carriage lock mechanism, and another one is used to drive the carriage mechanism. A paper is fed from the rear ASF unit by means of the LD roller and Retard roller and ejected to the front tray.

OPERATING PRINCIPLE Overview 21

Figure 2-1. Printer Mechanism block diagram

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CR Motor

PF Motor

CR Encoder Sensor

PF Encoder Sensor

CR Contact Module

PE Sensor

Printhead

Cover Open Sensor

2.1.2 Motors & Sensors

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/ T33/ME OFFICE 70 printer mechanism is equipped with the following printhead, motors and sensors.

No. Name Specification

1 Printhead

2 CR Motor

3 PF Motor

4 PE Sensor

5 CR contact module CSIC board

6 CR Encoder Sensor

7 PF Encoder Sensor

8 Cover Open Sensor

Figure 2-3 shows their locations.

Table 2-1. List of Motors & Sensors

F3-3 MACH Turbo2 head (Black: 180 nozzles x 2, Color: 180 nozzles (60 nozzles* x 3 colors) x 1

Type: DC motor Drive voltage: 42VDC +/- 5% (DRV IC voltage) Characteristics: Coil resistance: 22.7Ω +/- 10%

Inductance: 15.9mH (1KHz)

Drive method: PWM, constant-current chopping

Type: DC motor Drive voltage: 42VDC +/- 5% (DRV IC voltage) Characteristics: Coil resistance: 21.2Ω +/- 10%

Inductance: 17.2 mH (1kHz)

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: 180 pulse/inch

Purpose: Detection of open/close status of the printer cover Type: Mechanical contact

Figure 2-2. Motors & Sensors in Printer Mechanism

Note " * " : The No.1 nozzle of each color is used only for executing flushing, and is not used for

printing.

OPERATING PRINCIPLE Overview 22

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2.258

(64/720inch)

A column B column C column

C#3

C#2

C#1

5.644

(160/720inch)

0.071 (1/360inch)

Carriage movement direction

Paper feed direction

C#180

C#179

C#178

B#3

B#2

B#1

B#180

B#179

B#178

A#3

A#2

A#1

A#180

A#179

A#178

* #1,#61 and #121 nozzles of C column are

used only for flushing, and are not used for printing.

Black

A column: #1 to #180 B column: #1 to #180

Yellow C column*: #1 to C#60

Magenta C column*: #61 to C#120

Cyan C column*: #121 to C#180

CR Contact Module

Ink Supply Needle

Ink Cartridge

Ink Cavity

PZT

Nozzle Plate

CSIC Memory Chip

Electric poles

for CSIC

*Head ID is stored in EEPROM

on the main board.

Filter

2.2 Printer Mechanism Operating Principles

2.2.1 Printhead

F3-3 Mach Turbo2 type printhead is employed, which produces variable sized dot and economy dot. The printhead configuration is as follows.

 Nozzle configuration

 Black: 180 nozzles x 2  Color: 180 nozzles x 1 (cyan, magenta, yellow)

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

Therefore, whenever the printhead, main board, or the printer mechanism must be replaced with a new one, the Head ID of the new printhead needs to be written into the EEPROM using the Adjustment Program. The printer generates appropriate PZT drive voltage based on the Head ID information.

Following explains the basic components of the printhead.

 PZT

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

 Nozzle Plate

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

 Filter

This filter is located beneath the ink supply needle which supply ink to the printhead from the ink cartridge. The filter is preventing dirt or dust from getting into the printhead. Any dirt or dust may interrupt normal ink flow or can cause nozzle clog adversely affecting the print quality.

 Ink Cavity

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

The basic operating principles of the printhead, which plays a major role in printing, are the same as the previous printer; on-demand method which uses PZT (Piezo Electric Element). In order to reduce unit-to-unit variation in ink droplet size, the printhead has its own Head ID (10-digits code for EPSON Stylus C110/C120/D120/ WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70) which corrects PZT drive voltage for the printhead.

OPERATING PRINCIPLE Printer Mechanism Operating Principles 23

Figure 2-3. Nozzle Layout

Figure 2-4. Printhead Mechanism

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Ink path PZT Ink Cavity

Nozzle Nozzle Plate

PZT drive voltage is applied

When not

firing ink drop

When firing

ink drop

2.2.1.1 Printing Process

This section explains how the printhead of the on-demand inkjet printer fires ink drop from each of the nozzles.

1. When not firing ink drop When the printing signal is not output from the C687 main board, or the PZT drive voltage is not applied, the PZT does not change its shape. Therefore, the PZT does not push the ink cavity. The ink pressure inside the ink cavity is kept normal. (refer to

Figure 2-5 (p.24) “When not firing ink drop”)

2. When firing ink drop When the print signal is output from C687 main board, the nozzle selector IC provided on the printhead transmits the data in 1-byte unit. Based on the drive voltage generated on the main board, the PZT selected by the nozzle selector IC pushes the top of the ink cavity. By this operation, the ink stored in the ink cavity is ejected from nozzles. (refer to

Figure 2-5 (p.24) “When firing ink drop”)

2.2.1.2 Printing Method

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/ T33/ME OFFICE 70 offers printing with variable sized dot or printing with economy sized dot.

 Variable dot mode

This mode is developed to improve the print quality on Epson designated paper. Three sizes of dot; micro, middle, and large are automatically selected and used for printing according to the print data, basically the same as conventional models. Superior quality can be achieved on the Epson paper.

 Economy dot mode

Fixed larger dot is used for printing in economy mode, which enables fast printing with lower resolutions.

OPERATING PRINCIPLE Printer Mechanism Operating Principles 24

Figure 2-5. How to Fire Ink Drop

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Carriage Unit

Main Frame

Timing Belt

CR Scale CR Encoder Sensor CR Motor

2.2.2 Carriage Mechanism

The carriage mechanism components include the carriage unit (including printhead, CR encoder sensor), CR motor, timing belt, and CR scale. The operating principles of the carriage mechanism are described below.

Figure 2-6. Carriage Mechanism

2.2.2.1 CR Motor Control

This printer employs closed-loop control, via the CR motor and an encoder, to control the carriage speed and position. Since the CR motor is DC motor, the printer controls the motor in the following methods in order to ensure stable print quality.

 Heat control

The heat control over the CR motor is carried out based on the electrical characteristic of the motor such as torque constants, coil resistance and power supply voltages.

the CR mechanical load is in the initial state and saved into the EEPROM. According to the variations measured in the sequence, the voltage is corrected to make the drive current value constant reducing an individual difference.

 CR measurement sequence

To set the appropriate drive voltage for the CR motor in accordance with variation of the CR motor mechanical load, the printer runs a CR measurement sequence and stores the measured data into the EEPROM at power-on or in an ink cartridge replacement sequence. A fatal error occurs if the printer detects that too much load is applied to the CR motor.

The above control and sequences enable to correct the drive voltage for the CR motor based on the mechanical load and the electrical characteristic of the motor. According to the corrected drive voltage, heating value of the motor is calculated. The printer automatically provides wait time per CR path during printing when the predetermined heating value is reached.

2.2.2.2 Carriage Home Position Detection

As the previous model, the carriage home position is detected by the CR motor drive electric current and carriage speed/position signals sent from the CR encoder. The detection sequence performed at power-on is described below.

1. Drives the CR motor to move the carriage until it contacts with the right frame, and then stops the CR motor. The carriage position is set as a position specified number of counts rightward from the home position.

2. Moves the carriage again to the carriage lock position to check the lock for proper operation.

3. The printer starts to monitor the carriage position through the CR encoder.

The printer causes a fatal error if too much load on the CR motor is detected due to obstruction on the carriage path or if no carriage position information is obtained due to CR encoder or CR scale failure.

 CR motor drive dispersion measurement sequence

Variations in torque constant, coil resistance and power supply voltage of the motor are measured in a CR motor drive dispersion measurement sequence when

OPERATING PRINCIPLE Printer Mechanism Operating Principles 25

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PF Motor

Pinion Gear

PF Scale

Spur Gear A

(PF Roller)

PF Encoder Sensor

Transmission Gear

Spur Gear B

EJ Roller

Left side

Right side

Spur Gear C

(PF Roller)

Combination Gear A

Combination Gear B

(Pump Unit)

Combination

Gear C

(Change Lever)

Combination

Gear D

Combination Gear E

(LD Roller/Clutch)

PE Sensor

Low signal

High signal

PF Motor

LD Roller PE Sensor

PF Roller

EJ Roller

2.2.3 Paper Loading/Paper Feed Mechanism

The paper loading/feed mechanism are driven and controlled by the PF motor (DC motor) and the PF encoder. The PF motor drive force is transmitted to the LD roller and the PF roller via the gears in the mechanism. In the loading mechanism, paper is fed to the PF roller from the ASF unit, and the feed mechanism transports the paper during printing and ejects it.

The rotational direction of the PF motor switches between the loading and feed operations as shown in the table below.

Table 2-2. Rotational Direction of PF Motor & ASF Operations

Rotational Direction* Operations

Clockwise • Releases the change lever from the clutch mechanism.

Counterclockwise

Note " * " : Rotational direction of the PF motor pinion gear as seen from the left side of the

printer.

Figure 2-7 shows how the PF motor drive is transmitted to the LD roller and the PF

roller. (The numbers in the figure indicate the sequence of the drive transmission.)

• Feeds a paper into the printer and transports it.

• Locks the clutch mechanism with the change lever.

The PE sensor detects the paper top and bottom edges during the loading and feeding operations. When the sensor could not detect the top edge of paper during the loading operation, the printer causes a paper out error. And when the sensor could not detect the bottom edge of paper during feeding operation, the printer causes a paper jam error. For more details on the errors, see

OPERATING PRINCIPLE Printer Mechanism Operating Principles 26

Chapter 3 "TROUBLESHOOTING" (p35).

Figure 2-7. Paper Loading/Feed Mechanism

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Compression

Spring

Paper Back Lever

Hopper

LD Roller

Hopper Release Cam

Paper Back Lever Cam

Extension Spring

Clutch

Clutch Gear

Clutch Lever

Clutch Lock

Tab

Change Lever

Spur Gear C

(PF Roller)

Base Frame

Combination

Gear A

Combination

Gear B

(Pump Unit)

Combination

Gear C

(Change Lever)

Combination Gear D

Combination Gear E

(LD Roller/Clutch)

2.2.3.1 Paper Loading Mechanism (ASF Unit)

The paper loading mechanism loads paper from the ASF unit and feeds paper to the PF roller. The ASF unit includes the hopper, change lever, LD roller shaft, and clutch mechanism. The change lever and the clutch mechanism play an important role in the paper loading operation as described below.

1. ASF home position detection function The change lever and the clutch mechanism are used to detect the ASF home position. The counterclockwise rotation of the PF motor brings the change lever to engage with the clutch mechanism. The ASF home position is detected by the engagement of the change lever at the beginning of the paper loading operation. At this time, paper is not fed to the PF roller because the PF motor drive force is not yet transmitted to the LD roller shaft.

2. Paper loading function When the change lever is disengaged from the clutch mechanism by the counterclockwise rotation of the PF motor pinion gear, the printer changes to the paper loading state from the ASF home position detection state. The PF motor drive force is transmitted to the LD roller, and paper is fed from the ASF unit.

The rotation of the two cams on the LD roller feeds paper into the printer.

 Larger cam: moves the hopper  Smaller cam: moves the paper back lever

STEP1: ASF HOME POSITION

The counterclockwise rotation of the PF motor pinion gear (as seen from the left of the printer) causes the change lever to push down on the clutch lever, and the clutch lock tab is disengaged from the clutch gear as shown in

Figure 2-8. This cuts the PF motor

drive transmission to the LD roller shaft, and the shaft does not move at all. At the same time, the hopper is pushed down by the two cams on the LD roller shaft, and the paper back lever is set at the position to prevent paper from being fed. The “ASF home position” indicates all of the above statuses.

When the first sheet of paper has been fed, the second sheet is returned to the standby position by the hopper and the paper back lever, which are moved by the cams.

The following sections explain the paper loading sequence and operations of each components.

OPERATING PRINCIPLE Printer Mechanism Operating Principles 27

Figure 2-8. ASF Home Position

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Extension Spring

Clutch lock

tab engages

PF Motor drive is transmitted to LD Roller and paper is fed

Paper Back Lever goes to standby position

Hopper pops up

Paper Back Lever Cam and Hopper Release Cam rotate together with LD Roller

STEP2: RELEASING CLUTCH LEVER TO DRIVE LD ROLLER

When the PF motor pinion gear starts clockwise rotation (as seen from the left side), the change lever is moved toward the front of the printer to release the clutch lever. This causes the clutch to engage with the gear by being pulled by the extension spring. The clutch gear engages with the clutch lock tab and the PF motor drive force is now can be transmitted to the LD roller shaft.

STEP3: FEEDING PAPER FROM ASF

After the engagement of the clutch, the PF motor pinion gear starts counterclockwise rotation (as seen from the left side) and the drive force is transmitted to the LD roller shaft via the clutch lock tab and the clutch gear. When the LD roller starts to rotate, the paper back lever is returned to its standby position, and the hopper is released from the cams by being pushed by the spring. This causes a sheet of paper to be caught between the hopper and the LD roller, and the further rotation of the LD roller feeds the paper into the printer.

Figure 2-9. Releasing Clutch Lever

Figure 2-10. Feeding Paper from ASF

OPERATING PRINCIPLE Printer Mechanism Operating Principles 28

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Clutch lever is locked again by change lever to shut off PF motor drive force.

Paper Back Lever snaps back

Hopper is pushed down

STEP4: ENDING PAPER LOADING OPERATION

Continuous counterclockwise rotation of the LD roller (as seen from the left side) feeds paper to the PF roller. The LD roller rotation causes the hopper release cam and the paper back lever cam to push down the hopper and the paper back lever respectively. The paper back lever returns paper to the standby position to prevent multiple sheets of paper from being fed at once. When the LD roller and the clutch reach the ASF home position shown in “Step1” on the previous page, the clutch lever is locked again by the change lever. This causes the PF motor drive force not to be transmitted to the paper loading mechanism and to be transmitted only to the paper feeding mechanism.

Figure 2-11. Ending Paper Loading Operation

OPERATING PRINCIPLE Printer Mechanism Operating Principles 29

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Left side

PF Motor

PF Roller

PF Motor Drive Transmission Path (as seen from the left side of the printer)

• PF motor pinion gear (CCW) → Spur gear A (PF roller) (CW) → Transmission gear (CCW) → Spur gear B (EJ roller) (CW)

PF Motor Pinion Gear

PF Scale

Spur Gear A

(PF Roller)

Spur Gear B

EJ Roller

PF Encoder Sensor

Transmission Gear

Star Wheel Roller

EJ Roller

Paper Guide Roller

2.2.3.2 Paper Feed Mechanism

The major components of the paper feed mechanism are the PF motor, PF roller, EJ roller, PE sensor, PF encoder sensor, and PF scale. The sheet of paper fed from the ASF unit is nipped between two rollers to be transported during printing and to be ejected.

1. The first two rollers used for feeding the paper are the PF roller and the paper guide roller mounted on the upper paper guide unit. The PF motor drive force is transmitted to the paper guide roller via the PF roller.

2. The next two rollers are the EJ roller and the star wheel roller mounted on the Star Wheel Holder Assy. The PF motor drive force is transmitted to the star wheel roller via the EJ roller.

The figure below shows how the PF motor pinion gear drive force is transmitted to the PF roller, EJ roller, paper guide roller and the star wheel roller.

When the PF motor pinion gear starts counterclockwise rotation (as seen from the left side), the sheet of paper fed from the ASF unit to the PF roller is transported and ejected from the printer by the PF roller/paper guide roller combination and the EJ roller/star wheel roller combination.

Figure 2-12. Paper Feed Mechanism

OPERATING PRINCIPLE Printer Mechanism Operating Principles 30

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Cap

Carriage Lock Lever

Wiper

Waste Ink Tube (toward the Waste Ink Pad)

Pump Unit

Combination Gear + Cam (with clutch)

Cap Slider

CR Unit

Ink System (Cap unit)

Cap Slider

Carriage Unit presses down cap slider. This causes cap to pop up and cover printhead.

Carriage unit moves toward the home position

Cam moves to lock or unlock carriage only when cap slider pops up.

Locking carriage

Unlocking carriage

2.2.4 Ink System Mechanism

The ink system mechanism includes the capping mechanism and the pump mechanism. And the capping mechanism includes the carriage lock mechanism and the wiping mechanism. The table below describes the function of each mechanism.

Table 2-3. Function of Each Mechanism in Ink System

Mechanism Function

Capping mechanism

Wiping mechanism Wipes dust or ink stain off the printhead nozzle surface.

Pump mechanism

Carriage lock mechanism

Covers the printhead with the cap to prevent ink evaporation when the printer is in standby mode or when the printer is off.

Drains ink from the ink cartridges, ink cavity, and the cap and sends it to the waste ink pad.

Locks the carriage unit with the carriage lock lever while the unit is in the home position.

2.2.4.1 Capping Mechanism

The capping mechanism incorporates the wiping mechanism, however, the two mechanisms operate independently. Capping the printhead is performed by the carriage movement as the conventional models (such as Stylus CX4900/CX5000/CX6000) do.

Figure 2-14. Capping Mechanism

2.2.4.2 Carriage Lock Mechanism

The carriage lock mechanism is activated by the capping operation. Locking or unlocking the carriage is performed by the PF motor drive force that is transmitted via the cam of the clutch-equipped combination gear. (See more explanation about the cap slider and the cam operations)

"Wiping Mechanism (p32)" for

OPERATING PRINCIPLE Printer Mechanism Operating Principles 31

Figure 2-13. Ink System Mechanism

Figure 2-15. Carriage Lock Mechanism

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Non cleaning state

(clutch disengaged)

PF motor CW rotation: Moves the Wiper Upward

PF motor CCW rotation: Moves the Wiper Downward

Cap SliderCam

Clutch-equipped combination gear

Groove of

cam (1)

Wiper protrusion

Cap Slider protrusion

Groove of

cam (1)

Wiper protrusion

When the cap slider pops up, its protrusion is disengaged from the groove of cam (2). Therefore, the clutch is engaged causing the cam to rotate together with the combination gear.

The clockwise rotation of the PF motor rotates the cam in clockwise direction to move the wiper upward to clean the head.

The counterclockwise rotation of the PF motor rotates the cam in counterclockwise direction to move the wiper downward, which is out-of position for cleaning.

Groove (2) of the cam is designed so that the cap slider protrusion cannot be set into the groove unless the wiper is moved downward. This prevents the slider protrusion from being engaged with the groove when the slider is moved downward without the wiper moved downward.

Groove of

cam (2)

Cap Slider protrusion

Wiper

protrusion

Wiper

protrusion

In the non-cleaning state, the cap slider protrusion secures the cam and the clutch of the combination gear is disengaged. Therefore, the PF motor drive force is not transmitted to the cam.

Groove of

Groove of cam (2)

Cleaning state

(clutch engaged)

2.2.4.3 Wiping Mechanism

The wiping mechanism is activated by the capping operation. The mechanism moves the wiper into- and out-of position for cleaning the head using the PF motor drive force that is transmitted via the cam of the clutch-equipped combination gear.

Figure 2-16. Wiping Mechanism

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Cap unit side

Waste Ink Pad side

PF Motor

Pinion Gear

PF Scale

Spur Gear A

(PF Roller)

Spur Gear B

(EJ Roller)

PF Encoder Sensor

Transmission

Gear

Spur Gear C

(PF Roller)

Combination Gear A

Combination Gear B

(Pump Unit Roller)

Pump Unit

Cap Unit

2.2.4.4 Pump Unit Mechanism

The PF motor drives the pump unit mechanism as well as the paper loading/feed mechanisms. The motor drive force is always transmitted to the pump unit. (It is also transmitted to the LD roller via the clutch mechanism and the change lever.)

The rotational direction of the PF motor changes the pump unit operations as shown in the following table.

Table 2-4. PF Motor Rotational Direction & Pump Unit Operation

Rotational Direction* Function

Clockwise • Releases the pump

Counterclockwise • Draws (suctions) ink

Note " * " : The rotational direction as seen from the right side of the printer.

 Ink drawing operation

The pump unit draws ink out of the ink cartridges and ink cavity, and sends it to the waste ink pad by means of a pressure to the ink tube applied by the pump unit roller.

The following figure illustrates an overview of the pump unit mechanism operation.

Note : The PF motor rotational direction is as seen from the right side of the printer.

Figure 2-17. Pump Mechanism

Figure 2-18. PF Motor Drive Transmission to Pump Unit

OPERATING PRINCIPLE Printer Mechanism Operating Principles 33

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2.2.5 Ink Sequence

 Initial ink charge

When the printer power is turned On first time after purchase, the initial ink charge is automatically carried out to fill the ink cavity in the printhead with ink. The initial ink charge flag in the EEPROM is cleared when the initial charge is completed successfully. EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 requires about 120 seconds at maximum for the initial ink charge. If the power is turned Off during the process, the printer automatically runs a CL3 at the next power-on.

 Manual Cleaning

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/ T30/T33/ME OFFICE 70 offers three types of manual head cleaning (CL1, CL2, and CL3) that can be run from the control panel. They delete air bubbles in ink, clear nozzle clogging, or to eject foreign materials.

CL1, CL2, and CL3 are performed in that order when the cumulative print time has not reached 9 minutes regardless of the number of print paths counted since the last CL. When 9 minutes has reached or exceeded, only CL1 is executed. In the case that any of the ink cartridges has almost run out or completely run out of ink, the LED flashes or light and the manual cleaning is disabled.

 Timer Cleaning

Like the previous printers, this printer does not have lithium battery which is used for the backup power source for Timer IC. So, this printer manages the printer off period or cleaning cycle by using the following method.

The printer driver sends the timer command (time data) to the printer before printing. The command is generated based on the PC's timer and it consists of year, month, date, hour, minute and second. As soon as the printer receives the timer command, the printer stores the command in the EEPROM and compares it with the latest CL time which has been stored in the EEPROM. When the time difference exceeds the predetermined time period, the printer automatically runs the timer cleaning and stores the date and time of the cleaning in the EEPROM.

 Flushing

The following two types of flushing is carried out automatically.

 Pre-printing flushing

Reduces viscosity of ink inside the nozzles before starting printing.

 Periodic flushing

Reduces viscosity of ink inside the nozzles during printing.

OPERATING PRINCIPLE Printer Mechanism Operating Principles 34

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TROUBLESHOOTING

CHAPTER

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W A R N I N G

C H E C K

P O I N T

3.1 Overview

This chapter describes how to solve problems.

 Be careful to avoid electric shocks when checking the electrical

circuit boards 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

Chapter 4 “DISASSEMBLY/ASSEMBLY” (p.62) 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

Chapter 4 “DISASSEMBLY/ASSEMBLY” (p.62), 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 36

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

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

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

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3.2 Troubleshooting

3.2.1 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 3-1. Motor Specification

Motor Motor Type Drive Voltage Resistance

CR motor

DC motor with brash DC 42V±5%

PF motor 21.2Ω ± 10%

Table 3-2. Sensor check point

Sensor name Check point Signal level Switch mode

Less than 0.4V Off: Case opened

Open Cover Sensor CN4 / Pin 1 and 2

More than 2.4V On: Case closed

Less than 0.4V Off: No paper

PE Sensor CN3 / Pin 1 and 2

More than 2.4V On: Detect the paper

22.7Ω ± 10%

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3.2.2 Error Indications and Fault Occurrence Causes

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

Printer Status

Power — — — —

Ink — On — —

Indications

Paper — — On On

Status monitor 3 message

This error occurs when the printer cannot communicate with the PC correctly.

Fault Occurrence Cause

Communication Error Ink Low Double Feed Paper Out

This error occurs when about 90 percent of ink consumed.

Note : Even if this error is indicated on the STM3, you can continue printing until a "Replace Ink Cartridge" error appears. However, the Head Cleaning may not be performed during the ink low status.

This error occurs when multiple sheets of paper are fed simultaneously. The error condition is detected when paper length longer than its preset length is detected.

This error occurs when the PE sensor failed to detect the top edge of a paper during the paper feeding sequence.

Table 3-11, “Check point for

Reference Page

Note : “–” : No change

communication error according to each phenomenon,” on page 54

---

Table 3-10, “Check point for double feed error according to each phenomenon,” on page 53

Table 3-8, “Check point for paper out error according to each phenomenon,” on page 50

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Printer Status Replace Ink Cartridge or No Ink Cartridge CSIC Error Incorrect I/C Paper Jam

Power — — — —

Ink On On On —

Indications

Paper — — — Brink 1

Status monitor 3 message

This error occurs when any one of the followings is detected.

• 100 percent of ink has consumed.

Fault Occurrence Cause

Reference Page

Note : "–": No Change

"Brink 1": 1.25 sec. on + 1.25 sec. off

• The ink cartridge is defective.

Note : The ink cartridge still has a small amount of ink even after the error. This is to prevent the Printhead nozzles from being damaged by printing without ink.

Table 3-7, “Check point for no ink cartridge/CSIC error/incorrect ink cartridge according to each phenomenon,” on page 49

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

Table 3-7, “Check point for no ink cartridge/CSIC error/incorrect ink cartridge according to each phenomenon,” on page 49

This error occurs when any one of the followings is detected.

• An unsupported ink cartridge has been installed.

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

Table 3-7, “Check point for no ink cartridge/CSIC error/incorrect ink cartridge according to each phenomenon,” on page 49

This error occurs when the PE Sensor failed to detect the paper bottom edge during paper feeding sequence.

Table 3-6, “Check point for paper jam error according to each phenomenon,” on page 46

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Printer Status Maintenance Request Fatal Error Cover Open Error

Power Off Off —

Ink Brink 1 Brink 3 Brink 4

Paper Brink 2 Brink 3 Brink 4

Indications

Status monitor 3 message

Fault Occurrence Cause

Reference Page

Note : "Brink 1": 1.25 sec. on + 1.25 sec. off

"Brink 2": 1.25 sec. off + 1.25 sec. on "Brink 3": 0.5 sec. on + 0.5 sec. off "Brink 4": 0.5 sec. on + 0.5 sec. off + 0.5 sec. on + 1.0 sec. off

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

Table 3-5, “Check point for the Maintenance request according to each phenomenon,” on page 45

This error occurs when a mechanical error is detected. (CR error, PF error, etc.)

Table 3-3, “Check point for fatal error according to each phenomenon,” on page 41

This error occurs when the Cover Open sensor detects the printer cover is opened.

Table 3-4, “Check point for cover open error according to each phenomenon,” on page 45

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CN8

CR Motor

Connector Cable

CN9

PF Motor

Connector Cable

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

Occurrence timing

CR position

• Power on

• Anywhere

Detailed phenomenon

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

Defective unit/

part name

CR Motor

Check point Remedy

1. Check if the CR Motor Connector Cable is connected to CN8 on the Main Board.

2. Check if the CR Motor Connector Cable is not 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.

1. Check if the PF Motor Connector Cable is connected to CN9 on the Main Board.

1. Connect the CR Motor Connector Cable to CN8 on the Main Board.

1. Connect the PF Motor Connector Cable to CN9 on the Main Board.

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

PF Motor

2. Check if the PF Motor Connector Cable is not 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.

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Compression Spring 2.36

Change Lever

Upper Paper Guide Unit

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

Occurrence timing

CR position

• Power on

• Anywhere

Detailed phenomenon

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

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

Defective unit/

part name

PF Motor

ASF Unit

Upper Paper Guide

Unit

Check point Remedy

1. Check if the PF Motor Connector Cable is connected to CN9 on the Main Board.

2. Check if the PF Motor Connector Cable is not 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 2.36 does not come off in the Change Lever.

1. Check if the Paper Guide Upper Unit is correctly assembled.

1. Connect the PF Motor Connector Cable to CN9 on the Main Board.

1. Replace the ASF Unit with a new one.

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

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Slit of the CR Encoder Board

CR Scale

CR Encoder Board

Encoder FFC

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

Occurrence timing

CR position

• Power on

• Anywhere

Detailed phenomenon

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

Defective unit/

part name

CR Scale

Check point Remedy

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 not 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 Troubleshooting 43

CR Encoder Board

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

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

3. Check if the CR Encoder Board is not damaged. 3. Replace the CR Encoder Board with a new one.

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

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PF Scale

PF Encoder Sensor

PE Sensor Connector Cable

CN3

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

Occurrence timing

CR position

• Power on

• Anywhere

• Operation

• Anywhere

Detailed phenomenon

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

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

Defective unit/

part name

PF Scale/PF

Encoder Sensor

ASF Unit

Check point Remedy

1. Check if the PF Scale is not damaged or contaminated. 1. Replace the PF Scale with a new one.

2. Check if the PF Encoder Sensor is not damaged. 2. Replace the PF Encoder Sensor with a new one.

1. Check if the PE Sensor Connector Cable is connected to CN3 on the Main Board.

1. Connect the PE Sensor Connector Cable to CN3 on the Main Board.

2. Check if the PE Sensor Connector Cable is not damaged. 2. Replace the ASF Unit with a new one.

3. Check if the PE Sensor is not damaged. 3. Replace the ASF Unit with a new one.

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Cover Open Sensor

Connector Cable

CN4

Table 3-4. Check point for cover open error according to each phenomenon

Occurrence timing

CR position

• Operation

• Anywhere

Occurrence timing

CR position

Detailed phenomenon

Cover open error is indicated even though the printer cover is closed.

Table 3-5. Check point for the Maintenance request according to each phenomenon

Detailed phenomenon

Defective unit/

part name

Cover Open Sensor

Defective unit/

part name

Check point Remedy

1. Check if the Cover Open Sensor Connector Cable is connected to CN4 on the Main Board.

2. Check if the Cover Open Sensor Connector Cable is not damaged.

3. Check if the Cover Open Sensor is not damaged. 3. Replace the Upper Housing with a new one.

Check point Remedy

1. Connect the Cover Open Sensor Connector Cable to CN4 on the Main Board.

2. Replace the Upper Housing with a new one.

• Operation

•–

An error is indicated on the LED and STM.

Waste Ink Pads ---

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

“ADJUSTMENT” (p.98).)

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Paper Back Lever

Extension Spring 6.45

Extension Spring Retard

Backside of ASF Unit

Table 3-6. Check point for paper jam error according to each phenomenon

Occurrence timing

CR position

• Operation

• Outside HP

Detailed phenomenon

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

Paper is being resent during paper feeding operation.

Defective unit/

part name

ASF Unit

Check point Remedy

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

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

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

2. Set the Extension Spring 6.45 between the ASF Frame and the Paper Back Lever.

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

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Star Wheel Holder Assy

Star Wheel Holders

EJ Roller Unit

Table 3-6. 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 Star Wheel.

Defective unit/

part name

Star Wheel Holder

Assy*

Check point Remedy

1. Check if the Star Wheel Holder Assy is correctly assembled.

2. Check if the Star Wheel Holders does not come off. 2. Reassemble the Star Wheel Holders correctly.

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

1. Reassemble the Star Wheel Holder Assy correctly.

EJ Roller Unit*

* 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.

2. Check if the Spur Gear 51.5 is not damaged. 2. Replace the EJ Roller Unit with a new one.

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Upper Paper Guide Unit

Table 3-6. Check point for paper jam error according to each phenomenon

Occurrence timing

CR position

• Operation

•–

* 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 is not loaded to the PF Roller Unit.

Detailed phenomenon

Defective unit/

part name

Upper Paper Guide

Unit*

Check point Remedy

1. Check if the Upper Paper Guide Unit is correctly assembled.

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

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Memory Chip

Connector

Head FFC

CSIC Board

CSIC Connectors

Table 3-7. Check point for no ink cartridge/CSIC error/incorrect ink cartridge according to each phenomenon

Occurrence timing

CR position

• Power on

•Inside HP

Detailed phenomenon

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

Defective unit/

part name

Ink Cartridge

CSIC Board

Check point Remedy

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

2. Check if the Memory Chip is not disconnected or not chipped.

1. Check if the Head FFC is connected to connector on the CSIC Board.

2. Replace the Ink Cartridge with a new one.

1. Connect the Head FFC to connector on the CSIC Board.

2. Check if the CSIC Board is not damaged. 2. Replace the CSIC Board with a new one.

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

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LD Roller

Non-adhesive Area

Staplers

Cloth moistened with alcohol

CL Sheet

Adhesive Area

(Use a post card for the base sheet)

This side down

Hopper

Compression Spring 1.94

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

Occurrence timing

CR position

• Operation

•–

Detailed phenomenon

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

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

Defective unit/

part name

ASF Unit

Hopper

Check point Remedy

1. Check if any paper dust is not adhered to the surface of the LD Roller.

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

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.

*If the problem is not solved, replace the ASF

unit with new one.

1. Reassemble the Compression Spring 1.94 between the Base Frame and the Hopper.

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Extension Spring 0.143

Guide Pin

Clutch

LD Roller Shaft

Positioning Hole

Compression Spring 2.36

Change Lever

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

Occurrence timing

CR position

• Operation

•–

Detailed phenomenon

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

Defective unit/

part name

ASF Unit

Check point Remedy

1. Check if the Extension Spring 0.143 does not come off in the Clutch mechanism.

2. Check if the positioning hole of the Clutch does not come off from the guide pin of the LD Roller Shaft.

1. Reassemble the Extension Spring 0.143 in the Clutch mechanism.

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

TROUBLESHOOTING Troubleshooting 51

3. Check if the Clutch tooth is not damaged. 3. Replace the ASF Unit with a new one.

4. Check if the Clutch is not damaged. 4. Replace the ASF Unit with a new one.

5. Check if the Compression Spring 2.36 does not come off in the Change Lever.

5. Replace the ASF Unit with a new one.

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

Occurrence timing

CR position

• Operation

•–

Occurrence timing

CR position

• Operation

•–

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.

Defective unit/

part name

ASF Unit

Table 3-9. Check point for the unable head cleaning according to each phenomenon

Detailed phenomenon

Head Cleaning is not carried out. Ink Cartridge

Defective unit/

part name

Check point Remedy

1. Check if the tip of the Change Lever is not damaged. 1. Replace the ASF Unit with a new one.

Check point Remedy

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

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

2. Replace the Ink Cartridge with a new one

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Extension Spring Retard

Backside of ASF

Paper Back Lever

Extension Spring 6.45

Table 3-10. Check point for double feed error according to each phenomenon

Occurrence timing

CR position

• Operation

•–

Detailed phenomenon

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

Defective unit/

part name

ASF Unit

Check point Remedy

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

2. Set the Extension Spring 6.45 between the ASF Frame and the Paper Back Lever.

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CN1

Panel FFC

CN1

PS Board Connector Cable

PS Board Unit

Table 3-11. Check point for communication error according to each phenomenon

Occurrence timing

CR position

• Power on

• Anywhere

Detailed phenomenon

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

printer

Defective unit/

part name

Panel Unit

Check point Remedy

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

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

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

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

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

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

• Power on

• Anywhere

TROUBLESHOOTING Troubleshooting 54

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

printer

PS Board Unit

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

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

Board with new one.

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CN11

Panel FFC

Table 3-11. Check point for communication error according to each phenomenon

Occurrence timing

CR position

• Operation

•–

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 Unit

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 CN11 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 CN11 on the Main Board.

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Extension Spring Retard

Backside of ASF Unit

Paper Back Lever

Extension Spring 6.45

3.2.3 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 3-12. Check point for multiple sheets of paper are always loaded without LEDs and STM3

Occurrence timing

CR position

• Operation

•–

Detailed phenomenon

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

Defective unit/

part name

ASF Unit

Check point Remedy

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

2. Set the Extension Spring 6.45 between the ASF Frame and the Paper Back Lever.

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Seal rubber part

Compression

Spring1.47

Table 3-13. Check point for the abnormal noise

Occurrence timing

CR position

The abnormal noise occurs at the first power on timing and during each

• Anytime

• Anywhere

Print Quality State Detailed phenomenon

operation although the printing operation is performed.

The Carriage Unit collides to the UpperPaper Guide Unit during each operation.

Detailed phenomenon

Ink is scarcely ejected to the Cap from the Printhead.

Defective unit/

part name

Carriage Unit

ASF Unit

Upper Paper Guide

Unit

1. Check if the grease on the Carriage Path is sufficient. 1. Wipe off the remaining grease on the Carriage

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

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

Check point Remedy

Table 3-14. Check point for the poor printing quality

Defective unit/

part name

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

Ink System Unit

(Cap Unit)

Check point Remedy

path and lubricate it on its frame.

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

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

• Dot missing and mixed colors

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

Printhead

Cleaner Blade

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

2. Check if the Compression Spring 1.47 is correctly mounted on the Cap Unit.

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

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

1. Check if the Cleaner Blade does not have paper dust or bending.

2. Replace the Ink System Unit 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.

1. Replace Ink System Unit with a new one.

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Printhead

Connector

CN6

Head

FFC

CN7 CN5

CR movement

direction

Table 3-14. Check point for the poor printing quality

• White streak /

• White streak/

Print Quality State Detailed phenomenon

Ink is ejected to the Cap from the Printhead, but printing is not done at all

abnormal discharge

after cleaning or ink change, or abnormal discharge occurs.

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

color unevenness occurrence

[Note]

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

Defective unit/

part name

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

Check point Remedy

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

(CN5, CN6, CN7).

Head FFC

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

Printhead

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

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

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

Adjustment

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

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

Chapter 5 “ADJUSTMENT” (p.98).)

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

Printhead

“ADJUSTMENT” (p.98).)

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

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

path.

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

2. Check if the Main Frame is not deformed. 2. Replace the Main Frame with a new one.

Main Frame

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

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.107).)

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CR movement

direction

PF Roller Unit

Table 3-14. Check point for the poor printing quality

Print Quality State Detailed phenomenon

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

[Note]

If the problem is not solved, replace the

• White streak/ color unevenness occurrence

PF Motor with a new one.

The Star wheel mark against the CR movement direction.

Defective unit/

part name

Printer driver &

exclusive paper

Printhead

PF Roller Unit

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 not any foreign material on the surface of the PF Roller Unit.

2. Check if the PF Roller Unit is not damaged. 2. Replace the PF Roller Unit with a new one.

1. Check if the Star Wheel Holder does not come off. 1. Reassemble the Star Wheel Holder correctly.

2. Check if the surface of the Star Wheel Holder Assy is flat. 2. Replace the Star Wheel Holder Assy with a new

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

Nozzle Check Pattern. (Refer to Chapter 5

“ADJUSTMENT” (p.98).)

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

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

one.

Star Wheel Holder

Assy

Printer driver &

exclusive paper

Printing is blurred.

Printhead

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

1. Input 10 digits code of the Head ID into the EEPROM by using the Adjustment Program.

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LD Roller

Front Paper Guide Unit

Porous Pad Front Paper Guide

Table 3-14. Check point for the poor printing quality

Print Quality State Detailed phenomenon

• Print start position slip

• Ink stain of paper

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

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

Defective unit/

part name

ASF Unit

Front Paper Guide

Check point Remedy

1. Check if any paper dust is not adhered to the surface of the LD Roller.

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

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

page 50 "Remedy of the Paper out error".

* If the problem is not solved, replace the ASF

Unit with a new one.

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

2. Check if heaps of ink are not formed on Porous Pad Front Paper Guide.

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

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

2. Replace the Front Paper Guide Assy with a new one.

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Star Wheels

Table 3-14. Check point for the poor printing quality

Print Quality State Detailed phenomenon

• Ink stain of paper

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

Defective unit/

part name

Printhead

Upper Paper Guide

Unit

Star Wheel Holder

Assy

Check point Remedy

1. Check if the Printhead Cover does not have 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.

1. Check if the Star Wheels is free from ink stain. 1. Clean the Star Wheels with a soft cloth.

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

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DISASSEMBLY/ASSEMBLY

CHAPTER

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W A R N I N G

C A U T I O N

4.1 Overview

This section describes procedures for disassembling the main components of the product. Unless otherwise specified, disassembled units or components can be reassembled by reversing the disassembly procedure. Procedures which, if not strictly observed, could result in personal injury are described under the heading “WARNING”. “CAUTION” signals a precaution which, if ignored, could result in damage to equipment. Important tips for procedures are described under the heading “CHECK POINT”. If the assembly procedure is different from the reversed disassembly procedure, the correct procedure is described under the heading “REASSEMBLY”. Any adjustments required after reassembly of components or parts are described under the heading “ADJUSTMENT REQUIRED”. When you have to remove any components or parts that are not described in this chapter, refer to the exploded diagrams in the appendix.

Read the following precautions before disassembling and assembling.

4.1.1 Precautions

See the precautions given under the heading “WARNING” and “CAUTION” in the following columns when disassembling or assembling EPSON Stylus C110/C120/ D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70.

 Disconnect the power cable before disassembling or assembling

the printer.

 If you need to work on the printer with power applied, strictly

follow the instructions in this manual.

 Always wear gloves for disassembly and reassembly to protect

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

 Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

 To protect sensitive microprocessors and circuitry, use static

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

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

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

 When transporting the printer after installing the ink

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

 Use only recommended tools for disassembling, assembling or

adjusting the printer.

 Observe the specified torque when tightening screws.  Apply lubricants as specified. See Chapter 6 (p107) for details.)  Make the specified adjustments when you disassemble the

printer. (See Chapter 5

 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.

(p98) for details.)

4.1.2 Tools

Use only specified tools to avoid damaging the printer.

Table 4-1. Tools

Name

(+) Phillips screwdriver #1 1080530

(+) Phillips screwdriver #2 ---

Flathead screwdriver ---

Flathead Precision screwdriver #1 ---

Tweezers ---

Longnose pliers ---

Acetate tape 1003963

Nippers ---

Upper Case Opener 1108202

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

EPSON provides the tools listed with EPSON tool code.

EPSON Tool Code*

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4.1.3 Work Completion Check

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

Classification Item

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

ON-line Test

Printhead (Nozzle check pattern print)

Printer Unit

Carriage Mechanism

Printer Unit

Paper Feeding Mechanism

Check Point

Is the printing successful? OK / NG

Is ink discharged normally from all the nozzles?

Does it move smoothly? OK / NG

Is there any abnormal noise during its operation?

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

Is paper advanced smoothly? OK / NG

No paper jamming? OK / NG

No paper skew? OK / NG

No multiple feeding? OK / NG

No abnormal noise? OK / NG

Status

OK / NG

Classification Item

Ink Cartridge

Packing

Others

Waste Ink pad

Protective materials

Attachments, Accessories

Check Point

Are the ink cartridges installed correctly?

Are the waste ink pads adequate to absorb?

Is the printer carriage placed at the capping position?

Have all the relevant items been included in the package?

Status

OK / NG

Is the paper path free of any obstructions?

Is the PF Motor at correct temperature?

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

Adjustment

Lubrication

Function ROM Version Version: OK / NG

Specified Adjustment

Specified Lubrication

Are all the adjustments done correctly?

Are all the lubrication made at the specified points?

Is the amount of lubrication correct? OK / NG

OK / NG

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C H E C K

P O I N T

Some parts/units are shown both in the solid line box and the dashed line box. Find the part or unit you want to remove from those indicated in solid line box (the way to the solid line box is the shortest way). You need to remove the parts/units shown in dashed line box if they exist on the way to the target part/unit.

“ 4.3.3 Cover Printer ” (p67)

“ 4.3.1 Paper Support Assy. ” (p66)

“ 4.4.2 Panel Unit ” (p71)

“ 4.4.3 Power Supply Unit ” (p73) “ 4.5.4 Hopper ” (p78)

“ 4.5.14 Upper Paper Guide ” (p90)

“ 4.5.1 Removing Printer

Mechanism (Lower Housing) ” (p74)

“ 4.4.2 Panel Unit ” (p71)

“ 4.5.11 CR Motor ” (p85)

“ 4.5.4 Hopper ” (p78)

“ 4.5.16 Ink System Unit ” (p92)

“ 4.5.6 Star Wheel Holder Assy. ”

(p80)

“ 4.5.9 PF Scale ” (p83)

“ 4.5.18 PF Roller ” (p96)

“ 4.4.1 Main Board Unit/Left

Frame ” (p69)

“ 4.5.15 ASF Unit ” (p91)

“ 4.5.6 Star Wheel Holder Assy. ”

(p80)

“ 4.5.7 EJ Roller ” (p81)

“ 4.3.2 Stacker Assy. ” (p66)

“ 4.3.4 Upper Housing/Cover

Open Sensor ” (p67)

“ 4.5.2 Printhead ” (p75) “ 4.5.3 CR Scale ” (p77)

“ 4.4.1 Main Board Unit/Left

Frame ” (p69)

“ 4.5.7 EJ Roller ” (p81)

“ 4.5.8 PF Encoder Sensor ” (p82) “ 4.5.19 Waste Ink Pads ” (p97)

“ 4.5.5 Front Frame/Right Frame ”

(p79)

“ 4.5.10 PF Motor ” (p83)

“ 4.5.8 PF Encoder Sensor ” (p82)

“ 4.5.9 PF Scale ” (p83)

“ 4.5.17 Front Paper Guide ” (p95)

“ 4.5.12 Main Frame Assy. ” (p86)

“ 4.5.3 CR Scale ” (p77)

“ 4.5.13 CR Unit ” (p89)

Start

4.2 Disassembly Procedures

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

DISASSEMBLY/ASSEMBLY Disassembly Procedures 65

Figure 4-1. Disassembling Flowchart

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Paper Support Assy.

Guide Pin

Hook

Stacker Assy.

4.3 Removing Housing

4.3.1 Paper Support Assy.

 Part/Unit that should be removed before removing Paper Support Assy.

None

 Removal Procedure

1. Release the guide pins (x2) that secure the Paper Support Assy. and remove it from the Upper Housing.

4.3.2 Stacker Assy.

 Part/Unit that should be removed before removing Stacker Assy.

None

 Removal Procedure

1. Open the Stacker Assy.

2. Release the Stacker Assy. while pressing in the hook (x1) on the right with a flathead precision screwdriver or a similar tool, and then remove it.

Figure 4-2. Removing Paper Support Assy.

DISASSEMBLY/ASSEMBLY Removing Housing 66

Figure 4-3. Removing Stacker Assy.

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Cover Printer

Guide pin

C H E C K

P O I N T

Right Front Cover

Hook

4.3.3 Cover Printer

 Part/Unit that should be removed before removing Cover Printer

None

 Removal Procedure

1. Release the guide pins (x2) that secure the Cover Printer and remove it from Upper Housing.

4.3.4 Upper Housing/Cover Open Sensor

 Part/Unit that should be removed before removing Upper Housing/Cover

Open Sensor

None

 Removal Procedure

Stress whitening easily occurs in the hooks of the Right Front Cover. Be careful not to apply too much force on the hooks when removing the Right Front Cover. To remove the cover easily, use the Upper Case Opener (code:1108202).

1. Open the Paper Support Assy.

2. Open the Stacker Assy.

3. Remove the Right Front Cover.

Figure 4-4. Removing Cover Printer

Figure 4-5. Removing Right Front Cover

DISASSEMBLY/ASSEMBLY Removing Housing 67

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Upper Housing

C.B.P. 3x10, F/Zn-3C (6±1kgfcm)

C.B.P. 3x12, F/Zn-3C (6±1kgfcm)

Printer Rear

Connector of Cover Open Sensor

Cover Open Sensor

20mm

Align the tape edge with the edge of this rib.

Back of Upper Housing

4. Remove the screws (x4) that secure the Upper Housing.

5. Lift the Upper Housing a little to disconnect the connector (CN4) of the Cover Open Sensor from the Main Board, then remove the Upper Housing.

Figure 4-7. Removing Upper Housing (2)

 Tighten the screws in the order given in Figure 4-6.  If the acetate tape that secures the cable of the Cover Open

Sensor comes off, attach it correctly referring to the figure below.

DISASSEMBLY/ASSEMBLY Removing Housing 68

Figure 4-6. Removing Upper Housing (1)

Figure 4-8. Acetate Tape Position

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

CN8

CN9

CN3

CN1

CN11

CN6

CN7

CN5

CN10

Main Board Unit

Head FFC

Acetate Tape

Hook

C.B.P. 3x6, F/Zn-3C (6±1kgfcm) C.B.S. 3x6, F/Zn-3C (6±1kgfcm)

Main Board Unit

Left Frame

4.4 Removing Board

4.4.1 Main Board Unit/Left Frame



Part/Unit that should be removed before removing Main Board Unit/Left Frame

Upper Housing

 Removal Procedure

Be careful not to bend or damage the Panel Unit FFC when removing it.

1. Disconnect the following connectors (x4) and FFCs (x5) from the Main Board.

CN No. Cable CN No. Cable

CN1 Power Supply Unit cable CN8 CR Motor cable

CN3 PE Sensor cable CN9 PF Motor cable

CN5 Head FFC CN10 PF Encoder FFC

CN6 Head FFC CN11 Panel Unit FFC

CN7 Head FFC

2. Peel off the acetate tape (x1) that secures the Head FFC and the Left Frame together, and release the Head FFC from the hook (x1) on the Left Frame.

Figure 4-10. Removing Main Board Unit/Left Frame (1)

3. Remove the screws (x3) that secure the Main Board Unit and the Left frame.

Figure 4-11. Removing Main Board Unit/Left Frame (2)

Figure 4-9. Connector Layout of Main Board

DISASSEMBLY/ASSEMBLY Removing Board 69

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Panel Unit FFC

Main Board Unit

Left Frame

C.B.S. 3x6, F/Zn-3C (4±0.5kgfcm)

Left Frame

9 to 10 mm (from the slot on the frame to the tape edge)

Align the edge of the FFC with the edge of the Left Frame.

Panel Unit FFC

Double-sided tape position

Tab

Slot

4. Peel off the Panel Unit FFC from both the Main Board Unit and the Left Frame, and remove them together.

Figure 4-12. Removing Main Board Unit/Left Frame (3)

5. Remove the screw (x1) that secures the Left Frame, and remove the Main Board Unit.

 Be careful not to damage the PF Scale and the Spur Gear of

the EJ roller when installing the Main Board Unit and the Panel Unit.

 Route the Panel Unit FFC on the Main Board Unit and the

Panel Unit referring to the figure below. Make sure to fold the FFC as shown.

Figure 4-14. Routing Panel Unit FFC

 When installing the Main Board Unit, be sure to insert the

tabs (x2) of the Main Board Unit into the slots of the Base Frame (x2).

DISASSEMBLY/ASSEMBLY Removing Board 70

Figure 4-13. Removing Main Board Unit/Left Frame (4)

Figure 4-15. Installing Main Board Unit

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

A D J U S T M E N T

R E Q U I R E D

50 mm

Align the edge of the tape with the corner of Left Frame.

Align here with the cutout of the Left Frame.

Inside of the frame

Wrap the tape around the frame and the Head FFC.

Outside of the frame

USB Interface

Panel Unit

Connector of the

Panel Unit FFC

Rib and Cutout

Marking-off Line

Tape position

 When routing the Head FFC on the Left Frame, secure the

Head FFC with an acetate tape on the specified position as shown in the figure below.

Figure 4-16. Acetate Tape Position

 Be cautious of the following points when connecting the cables

to the Main Board.

1. Do not let the cables and FFCs over the USB interface.

2. Route the CR Motor cable and the PF Motor cable through the gap between their connectors.

4.4.2 Panel Unit

 Part/Unit that should be removed before removing Panel Unit

Upper Housing

 Removal Procedure

1. Peel off the Panel Unit FFC that is secured with the double-sided tape (x1) from the Panel Unit, and disconnect the FFC (x1) from the connector of the Panel Unit.

2. Release the rib (x1) of the Panel Unit from the cutout (x1) of the Front Frame, and remove the Panel Unit.

DISASSEMBLY/ASSEMBLY Removing Board 71

Figure 4-17. Routing cables on the Main Board

After replacing the Main Board Unit, be sure to perform specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

Figure 4-18. Removing Panel Unit

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Panel Shield Plate

C.B.S. 3x6, F/Zn-3C (4±0.5kgfcm)

Guide Pin and Positioning Hole

Panel Housing

Light Guide Tube

Guide Pin and Positioning Hole

3. Remove the screws (x2) that secure the Panel Board and the Panel Shield Plate, and remove them together.

Figure 4-19. Removing Panel Board

 Insert the guide pins (x2) of the Panel Housing into the

positioning holes (x2) of the Light Guide Tube as shown in

Figure 4-20.

 Insert the guide pins (x2) of the Panel Housing into the

positioning holes (x2) of the Main Board as shown in

Figure

4-19.

 When routing the Panel Unit FFC, tape the FFC to the Panel

Unit with a double-sided tape. Both edge of the Panel Unit FFC must be aligned with the marking-off line as shown in

Figure 4-18.

4. Remove the Light Guide Tube from the Panel Housing.

Figure 4-20. Removing Light Guide Tube

DISASSEMBLY/ASSEMBLY Removing Board 72

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C.B.P. 3x10, F/Zn-3C (6±1kgfcm)

Power Supply Unit

A D J U S T M E N T

R E Q U I R E D

Power Supply

Unit

Tab

Hole

Power Supply Unit Cable

Base Frame

Ferrite core

4.4.3 Power Supply Unit

 Part/Unit that should be removed before removing Power Supply Unit

Upper Housing/Lower Housing

 Removal Procedure

1. Disconnect the connectors of the Panel Unit FFC (CN11) and the Power Supply Unit (CN1) from the Main Board. (refer to Figure 4-9)

2. Remove the screws (x2) that secure the Power Supply Unit.

3. Lift the Base Frame a little, and then remove the Power Supply Unit.

When installing the Power Supply Unit, make sure to check the following points.

 Insert the tabs (x2) of the Power Supply Unit into the holes on

the Base Frame.

Figure 4-22. Installing the Power Supply Unit

 Tighten the screws in the order given in Figure 4-21.  Put the ferrite core attached to the Power Supply Unit cable

into the cutout of the Base Frame.

Figure 4-21. Removing Power Supply Unit

After replacing the Power Supply Unit, be sure to perform specified adjustment. See

Figure 4-23. Routing the Power Supply Unit Cable

Chapter 5 “ ADJUSTMENT” (p.98)

DISASSEMBLY/ASSEMBLY Removing Board 73

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

Right Hand Position

Left Hand Position

1 2

C.B.P. 3x10, F/Zn-3C (6±1kgfcm)

4.5 Disassembling Printer Mechanism

4.5.1 Removing Printer Mechanism (Lower Housing)

 Part/Unit that should be removed before removing Printer Mechanism

Upper Housing

 Removal Procedure

When lifting the Printer Mechanism, be sure to hold the positions specified in the figure below to prevent the Main Frame from becoming deformed.

1. Remove the screws (x4) that secure the Printer Mechanism to the Lower Housing, and remove it.

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 74

Figure 4-25. Removing Printer Mechanism

Tighten the screws in the order given in Figure 4-25.

Figure 4-24. Printer Mechanism Handling Precaution

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Spur Gear 51.5

Carriage Lock

CR Unit

Head Cable Cover

Hook

Head FFC Connector

Tab

Holder Board Assy.

4.5.2 Printhead

 Part/Unit that should be removed before removing Printer Mechanism

Upper Housing

 Removal Procedure

1. Turn the Spur Gear 51.5 in the direction of the arrow to release the Carriage Lock, and then move the CR Unit to the center of the printer.

Figure 4-26. Unlocking and Moving CR Unit

2. Open the Cartridge Cover and remove all the ink cartridges from the CR Unit.

3. Release the hook (x1) of the Head Cable Cover with a flathead precision screwdriver, and remove the Head Cable Cover while sliding it downward (in the direction of the arrow).

4. Disconnect the Head FFC (x1) that is connected to the CSIC Board.

5. Release the tabs (x2) that secure the Holder Board Assy. using a needle or a similar tool, and remove the Holder Board Assy. upward (in the direction of the arrow).

Figure 4-28. Removing Printhead (2)

Figure 4-27. Removing Printhead (1)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 75

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

C.B.S. 2.5x8, F/Zn-3C (3±1kgfcm)

1 2

Printhead

Head FFC

A D J U S T M E N T

R E Q U I R E D

Do not touch or damage the nozzles or the ink supply needles of the Printhead.

6. Remove the screws (x3) that secure the Printhead, and lift up the Printhead with a longnose pliers.

Figure 4-29. Removing Printhead (3)

7. Disconnect the Head FFC from the connectors (x2) of the Printhead, and remove the Printhead.

 Tighten the screws in the order given in Figure 4-29.  Insert the Holder Board Assy. vertically into the CR Unit so as

not to put the assy. on the rib of the Printhead.

After removing/replacing the Printhead, be sure to perform the specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

Figure 4-30. Removing Printhead (4)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 76

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

CR Scale

Hook

Slit of CR Encoder Sensor

Chipped

CR Scale

Hook Extension Spring 3.289

4.5.3 CR Scale

 Part/Unit that should be removed before removing CR Scale

Upper Housing

 Removal Procedure

Pay attention to the following instructions:

 Do not touch the CR Scale with bare hands.  Do not damage the CR Scale.  Do not stretch Extension Spring 3.289 too much.

1. Release the right end of the CR Scale from the hook.

2. Release the CR Scale through the slit of the CR Encoder Sensor.

3. Release the Extension Spring 3.289 from the hook of the Main Frame.

4. Rotate the CR Scale 90 degrees as shown in the figure and remove the scale from the Main Frame.

Figure 4-32. Removing CR Scale (2)

When installing the CR Scale, pay attention to the following instructions.

 Chipped part of the CR Scale must face upward.  CR scale should be passed through the slit of the CR Encoder

Sensor.

 Make sure that the Extension Spring 3.289 is not be twisted,

and then attach its one end to the hook of the Main Frame.

Figure 4-31. Removing CR Scale (1)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 77

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Dowel B

Dowel A

Hopper

Compression Spring1.94

A D J U S T M E N T

R E Q U I R E D

Hopper

Rib and Groove

4.5.4 Hopper

 Part/Unit that should be removed before removing Hopper

Upper Housing/Lower Housing

 Removal Procedure

1. Release the dowel A of the Hopper.

2. Release the dowel B of the Hopper, and remove the Hopper together with the Compression Spring 1.94.

When installing the Hopper, be sure to engage the rib of the Hopper with the guide groove of the Base Frame.

Figure 4-34. Installing Hopper

After removing/replacing the Hopper, be sure to perform the specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

Figure 4-33. Removing Hopper

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 78

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Double-sided Tape

Grounding Spring Hook

Front Frame

Head FFC

Ferrite Core

C.B.P. 3x6, F/Zn-3C (6±1kgfcm)

Hook

Dowel

Right Frame

Front Frame

Cutout

Hook

4.5.5 Front Frame/Right Frame

 Part/Unit that should be removed before removing Front Frame/Right Frame

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit

 Removal Procedure

1. Remove the double-sided tape (x1) that secures the ferrite core to the Front Frame.

2. Release the Head FFC from the hooks (x3) of the Front Frame.

3. Remove the Grounding Spring from the Front Frame.

4. Remove the screw (x1) that secure the Front Frame and the Right Frame together.

5. Release the dowel (x1) and the hook (x1) that secure the Right Frame, and remove it.

Figure 4-36. Removing Front Frame/Right Frame (2)

6. Release the hook (x1), and remove the Front Frame.

Figure 4-35. Removing Front Frame/Right Frame (1)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 79

Figure 4-37. Removing Front Frame/Right Frame (3)

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

10mm

18mm

Reference Line

Ferrite core Position

C.B.P. 3x8, F/Zn-3C (6±1kgfcm)

Star Wheel Holder Assy.

Grounding Spring

 After replacing the Front Frame, be sure to attach an acetate

tape referring to the figure below.

Figure 4-38. Acetate Tape Position



When installing the Front Frame, pay attention to the following instructions.

• As shown in Figure 4-37, be sure to secure the Front Frame

with the hook (x1) and the cutouts (x2).

• As shown in Figure 4-36, secure the Front Frame and Right

Frame together with the screw. (Place the Right Frame on top of the Front Frame.)



When attaching the ferrite core, align its edge with the reference line marked on the Front Frame, then secure the core with double-sided tape.

4.5.6 Star Wheel Holder Assy.

 Part/Unit that should be removed before removing Star Wheel Holder Assy.

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit

 Removal Procedure

1. Remove the Grounding Spring from the Star Wheel Holder Assy.

2. Remove the screws (x2) that secure the Star Wheel Holder Assy, and remove it.

Figure 4-40. Removing Star Wheel Holder Assy.

Figure 4-39. Attaching Ferrite Core

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 80

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C H E C K

P O I N T

Spur Gear 51.5

EJ Roller

Tab

EJ Roller

A D J U S T M E N T

R E Q U I R E D

Rib and Slit

Concave and Convex Section

Spur Gear 51.5

EJ Roller

4.5.7 EJ Roller

 Part/Unit that should be removed before removing EJ Roller

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Star Wheel Holder Assy.

 Removal Procedure

The Spur Gear 51.5 cannot be reused once it is removed. Whenever the gear is removed, make sure to attach a new one.

1. Insert a flathead precision screwdriver into the gap between the Spur Gear 51.5 and the EJ Roller, and push the gear with the screwdriver in the direction of the arrow to remove it.



When installing the EJ Roller, pay attention to the following instructions.

• Make sure that the rubber part of the EJ Roller does not

contact with the hook of the Front Paper Guide.

• Be cautious not to touch the rubber part of the EJ Roller.

• Be sure to align the rib (x1) of the Front Paper Guide with the

slit on the EJ Roller.

Figure 4-43. Installing EJ Roller

 When installing the Spur Gear 51.5, be sure to align the

concave section of the Spur Gear 51.5 with the convex section of the EJ Roller.

Figure 4-41. Removing EJ Roller (1)

2. Remove the EJ Roller while pushing the tab on the right side of the Base Frame in the direction of the arrow.

Figure 4-44. Installing Spur Gear 51.5

 After removing/replacing the EJ Roller, be sure to perform

the specified adjustment. See

Chapter 5 “ ADJUSTMENT”

(p.98)

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

Figure 4-42. Removing EJ (2)

lubrication. See

Chapter 6 “ MAINTENANCE” (p.107)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 81

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

Acetate Tape

PF Encoder FFC

C.B.P. 2.5x8, F/Zn-3C (4±1kgfcm)

PF Encoder Sensor

Align here with edge of

the PF Encoder Sensor

30mm

4.5.8 PF Encoder Sensor

 Part/Unit that should be removed before removing PF Encoder Sensor

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit

 Removal Procedure

1. Peel off the acetate tape (x1) from the PF Encoder Sensor.

2. Release the PF Encoder FFC from the connector (x1) of the PF Encoder Sensor.

3. Remove the screw (x1) that secures the PF Encoder Sensor, and remove it.

When installing the PF Encoder Sensor, be sure to attach the acetate tape (x1) referring to the figure below.

Figure 4-46. Acetate Tape Position

Figure 4-45. Removing PF Encoder Sensor

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 82

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

Spur Gear 32.4

PF Scale

Double-sided Tape

Notch

PF Motor Connector Cable

C.B.P. 3x8, F/Zn-3C (6±1kgfcm)

Grounding Spring

PF Motor

Guide Pin and Positioning Hole

C.B.S. 3x6, F/Zn-3C (8±1kgfcm)

4.5.9 PF Scale

 Part/Unit that should be removed before removing PF Scale

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/PF Encoder Sensor

 Removal Procedure

Pay attention to the following instructions.

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

1. Peel of the PF Scale that is secured with the double-sided tape (x1) from the Spur Gear 32.4.

4.5.10 PF Motor

 Part/Unit that should be removed before removing PF Motor

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/PF Encoder Sensor/PF Scale

 Removal Procedure

1. Release the PF Motor connector cable from the notches (x2) of the Base Frame.

Figure 4-48. Removing PF Motor (1)

2. Remove the Grounding Spring from the PF Motor.

3. Remove the screws (x3) that secure the PF Motor, and remove it.

Figure 4-47. Removing PF Scale

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 83

Figure 4-49. Removing PF Motor (2)

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PF Motor Connector Cable

71mm or more

Grounding Spring

PF Roller

A D J U S T M E N T

R E Q U I R E D

Main Frame

PF Motor

HookGrounding Spring



When installing the PF Motor, pay attention to the following instructions.

• Do not damage the PF Scale.

• Insert the guide pins (x2) on the Base Frame into the

positioning holes (x2) of the PF Motor as shown in Figure

4-49.

• Route the PF Motor connector cable referring to the figure

below.

Figure 4-50. Routing PF Motor Connector Cable

 Tighten the screws in the order given in Figure 4-49.  Follow the steps below to install the Grounding Spring.

1. Attach the larger U-shaped end of the Grounding Spring to the PF Roller.

2. Pass the Grounding Spring along the inner side of the hook of the Main Frame.

3. Ground the smaller U-shaped end of the Grounding Spring with the undersurface of the frame for PF Motor.

Figure 4-52. Installing Grounding Spring (2)

After replacing the PF Motor, be sure to perform the specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

Figure 4-51. Attaching Grounding Spring (1)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 84

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

C A U T I O N

CR Motor Connector Cable

Notch

Hook

Hole

C A U T I O N

Timing Belt

Driven Pulley Holder

Pinion Gear

CR Motor

C.P. 3x4, F/Zn-3C (4±1kgfcm)

4.5.11 CR Motor

 Part/Unit that should be removed before removing CR Motor

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame

 Removal Procedure

1. Turn the Spur Gear 51.5 to release the Carriage Lock, and move the CR Unit to the center of the printer.

(Refer to 4.5.2 Printhead Step1 (p75))

Be careful not to damage the CR Motor cable when releasing the cable from the hooks of the Main Frame.

2. Release the CR Motor cable from the notches (x3) of the Base Frame and the hooks (x3) of the Main Frame, and then pull out the cable through the hole of the Base Frame.

After releasing the Timing Belt, temporarily secure the belt to the Cartridge Cover with a tape or the like so as not to allow the grease to come in contact with the Timing Belt. Contaminating the belt with grease can result in malfunction of the printer.

3. Loosen the tension of the Timing Belt by pressing the Driven Pulley Holder in the direction of the arrow as shown in the figure, and release the Timing Belt from the pinion gear of the CR Motor.

Do not damage the pinion gear of the CR Motor.

4. Remove the screws (x2) that secure the CR Motor, and remove it.

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 85

Figure 4-54. Removing CR Motor (2)

Figure 4-53. Removing CR Motor (1)

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

A D J U S T M E N T

R E Q U I R E D

CR Motor

Groove

C H E C K

P O I N T

Extension Spring

Driven Pulley Holder

Hook

 Be sure to install the CR Motor so that the groove on it faces

downward.

Figure 4-55. Installing CR Motor

 Tighten the screws in the order given in Figure 4-54.  Make sure that there is no gap between the CR Motor and the

Main Frame.

After replacing the CR Motor, be sure to perform the required adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

4.5.12 Main Frame Assy.

 Part/Unit that should be removed before removing Main Frame Assy.

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper

Main Frame Assy. consists of the following parts.

 Main Frame  CR Unit  Printhead  Upper Paper Guide

 Removal Procedure

1. Remove the Grounding Spring from the PF Motor.

(Refer to 4.5.10 PF Motor Step2 (p83))

2. Release one end of the Extension Spring from the hook of the Main Frame with a longnose plier, and then remove the spring together with the Driven Pulley Holder.

Figure 4-56. Removing Extension Spring and Driven Pulley Holder

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 86

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

LD Shaft Holder

Tab

C.B.P. 3x6, F/Zn-3C (6±1kgfcm)

Extension Spring 10.99Main Frame

C A U T I O N

LD Roller Shaft

C.B.S. 3x6, F/Zn-3C (8±1kgfcm)

Holding Position

C.B.P. 3x8, F/Zn-3C (6±1kgfcm)

Main Frame Assy.

3. Move the CR Unit to left side of the printer.

4. Remove the screw (x1) that secures the LD Shaft Holder.

5. Move the LD Shaft Holder in the direction of the arrow while holding down its tab with a flathead precision screwdriver, and remove the LD Shaft Holder.

Figure 4-57. Removing LD Shaft Holder

6. Remove the Extension Springs 10.99 (x3) from each hook of the Main Frame and the Upper Paper Guide.

When laying the Main Frame Assy, make sure to put it as shown in the figure below. Do not lay it with the rollers of the Upper Paper Guide facing downward, or the rollers or the nozzle surface may get damaged.

Figure 4-59. Precaution on Handling Main Frame Assy.

7. Remove the screws (x6) that secure the Main Frame, and remove it while avoiding the LD Roller Shaft so as not to hit the Upper Paper Guide.

Figure 4-58. Removing Upper Paper Guide (1)

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 87

Figure 4-60. Removing Main Frame Assy.

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EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70 Revision C

LD Roller Shaft

Upper Paper Guide

A D J U S T M E N T

R E Q U I R E D

Extension Spring 10.99

Hook



When installing the Main Frame Assy, pay attention to the following instructions.

1. Put the right part of the Upper Paper Guide indicated in the figure below under the LD Roller Shaft.

2. Align the hook (x1) of the Frame Support with the positioning hole (x1) of the Main Frame.

3. Align the hook (x1) of the ASF Unit with the positioning hole (x1) of the Main Frame.

4. Align the guide pins (x2) of the Base Frame with the positioning holes (x2) of the Main Frame.

 Tighten the screws in the order given in Figure 4-60.  Follow the steps below to install the Extension Spring 10.99 to

the Upper Paper Guide.

1. Attach the one end of the Extension Spring 10.99 to the hook of the Upper Paper Guide.

2. Attach the another end of the Extension Spring 10.99 to the hook of the Main Frame with a longnose plier.

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 88

Figure 4-62. Installing Extension Spring 10.99

 Be sure to install the Grounding Spring referring to Figure

4-49 and Figure 4-52.

 After replacing the Main Frame, be sure to perform the

specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

 After replacing the Main Frame, be sure to perform the

specified lubrication. See

Chapter 6 “ MAINTENANCE”

(p.107)

Figure 4-61. Installing Main Frame Assy.

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CR Scale HolderCR Unit

C.B.S. 3x6, F/Zn-3C (8±1kgfcm)

Timing Belt

Groove

CR Unit

Ink Position Label Carriage Cover

Attach the label here. The chipped corner must come to the upper left.

4.5.13 CR Unit

 Part/Unit that should be removed before removing CR Unit

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper/Main Frame Assy./Printhead

 Removal Procedure

1. Remove the screw (x1) that secures the CR Scale Holder, and remove it.

2. Move the CR Unit in the direction of the arrow to remove the unit.

3. Release the Timing Belt from the groove of the CR Unit.

Figure 4-64. Removing CR Unit (2)

 The Ink Position Label is not included in the CR Unit. When

replacing the CR Unit, order the Ink Position Label separately and attach the label as shown below

Figure 4-63. Removing CR Unit (1)

Figure 4-65. Attaching Ink Position Label

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Upper Paper Guide

Hook

 Put the part of the Timing Belt that has serrated surface on its

both sides into the groove of the CR Unit.

Figure 4-66. Installing Timing Belt

 After removing/replacing the CR Unit, be sure to perform the

specified adjustment. See

 After replacing the CR Unit, be sure to perform the required

lubrication. See

Chapter 6 “ MAINTENANCE” (p.107)

Chapter 5 “ ADJUSTMENT” (p.98)

4.5.14 Upper Paper Guide

 Part/Unit that should be removed before removing Upper Paper Guide

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper/Main Frame Assy.

 Removal Procedure

1. Release the hooks (x6), and remove the Upper Paper Guide.

Figure 4-67. Upper Paper Guide

After removing/replacing the Upper Paper Guide, be sure to perform the specified adjustment. See Chapter 5 “ ADJUSTMENT” (p.98)

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C A U T I O N

PE Sensor Connector Cable

Notch Hole

Frame Support

C.B.P. 3x8, F/Zn-3C (6±1kgfcm)

ASF Unit

Dowel Shaft

Guide Pin and Positioning Hole

4.5.15 ASF Unit

 Part/Unit that should be removed before removing ASF Unit

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper/Main Frame Assy.

 Removal Procedure

1. Release the PE Sensor cable from the notches (x6) of the Base Frame and pull out the cable out of the hole (x1).

Figure 4-68. Releasing PE Sensor Cable

2. Remove the screws (x2) that secure the ASF Unit.

Figure 4-70. Removing ASF Unit (1)

3. Release the guide pins (x3) of the Base Frame and the shaft (x1) of the ASF Unit, and then remove the ASF Unit.

When performing the following steps, be cautious not to get injured with the sharp metal edges of the Frame Support.

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 91

Figure 4-69. Sharp Edges of Frame Support

Figure 4-71. Removing ASF Unit (2)

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A D J U S T M E N T

R E Q U I R E D

PE Sensor Cable

C A U T I O N

Frame Support

 When installing the ASF Unit, be sure to align the guide pins

(x2) of the Base Frame with the positioning holes (x2) of the ASF Unit shown in the



When routing the PE Sensor cable, pay attention to the

Figure 4-70.

following instructions.

• Route the cable in the order given in Figure 4-68.

• Make sure to face the blue line of the cable toward the Base

Frame.

Figure 4-72. Routing PE Sensor Cable

4.5.16 Ink System Unit

 Part/Unit that should be removed before removing Ink System Unit

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper/Main Frame Assy./ASF Unit

 Removal Procedure

When disassembling/assembling the Ink System Unit, pay attention to the following instructions.

 Be cautious not to get injured with the sharp metal edges of the

Frame Support.

Figure 4-73. Sharp Edges of Frame Support

• Check if there is no slack in the cable.

 Do not touch or damage the Sealing Rubber or the Head

Cleaner.

 After removing/replacing the ASF Unit, be sure to perform the

specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

 Mark the connection location before removing the Ink Tube.

 After replacing the ASF Unit, be sure to perform the required

lubrication. See

Chapter 6 “ MAINTENANCE” (p.107)

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Waste Ink Cover Tube Stopper

Waste Ink Tube

Groove

C.B.P. 3x6, F/Zn-3C (6±1kgfcm)

Hook

Ink System Unit

Carriage Lock Lever

Extension Spring 0.8

Ink System Unit

Dowel and Hole

1. Detach the Waste Ink Tube together with the Tube Stopper from the Waste Ink Cover.

2. Detach the Waste Ink Tube from the groove of the Base Frame.

Figure 4-74. Detaching Waste Ink Tube

3. Remove the screw that secures the Ink System Unit (x1).

4. Slide the Ink System Unit in the direction of the arrow while releasing its hook with flathead precision screwdriver, and remove the Ink System Unit.

 If the Carriage lock lever comes off, reassemble it following

the steps below.

1. Attach the one end of the Extension Spring 0.8 to the hook of the Carriage Lock Lever.

2. Attach the another end of the Extension Spring 0.8 to the Ink System Unit.

3. Insert the dowel (x1) of the Carriage Lock Lever into the hole (x1) of the Ink System Unit.

Figure 4-76. Installing Carriage Lock Lever

Figure 4-75. Removing Ink System Unit

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Base Frame Side

Ink System Side

Rib and Groove

Ink System Unit

Waste Ink Tube

Groove

Tube Stopper

Waste Ink Tube

30±1mm



When installing the Ink System Unit, pay attention to the following instructions.

• Align the dowels (x3) of the Ink System Unit with the

positioning holes (x3) of the Base Frame.

Figure 4-77. Installing Ink Stem Unit (1)

 Pass the Waste Ink Tube through the groove of the Base

Frame so that the red line of the Waste Ink Tube faces to the Ink System Unit side.

Figure 4-79. Routing Waste Ink Tube

 Referring to the figure below, attach the Tube Stopper to the

Waste Ink Tube, and insert them into the Waste Ink Cover.

• Align the ribs (x2) of the Ink System Unit with the grooves

(x2) of the Base Frame.

Figure 4-80. Installing Waste Ink Tube

DISASSEMBLY/ASSEMBLY Disassembling Printer Mechanism 94

Figure 4-78. Installing Ink System Unit (2)

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C A U T I O N

Rib

Front Paper Guide

C.B.P. 3x10, F/Zn-3C (6±1kgfcm)

A D J U S T M E N T

R E Q U I R E D

Front Paper Guide

Hook

Tip of the PGF Pad

Correct Position Incorrect Position

4.5.17 Front Paper Guide

 Part/Unit that should be removed before removing Front Paper Guide

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper/Main Frame Ashy./ASF Unit/Ink System Unit/Star Wheel Holder Assy./EJ Roller

 Removal Procedure

When removing the Front Paper Guide, Be cautious not to damage the rib on the upper surface of the Front Paper Guide.

Figure 4-81. Rib of the Front Paper Guide

1. Remove the screws (x2) that secure the Front Paper Guide.

2. Release the hook (x1) of the Front Paper Guide, and remove it.

Figure 4-83. Removing Front Paper Guide (2)

 When installing the Front Paper Guide, be cautious not to

damage the PF Roller.

 Make sure that the tip of the PGF Pad is put in the correct

position as shown in the figure below. It should not get caught between the Front Paper Guide and the Base Frame.

Figure 4-84. Installing Front Paper Guide

 Tighten the screws in the order given in Figure 4-82.

Figure 4-82. Removing Front Paper Guide (1)

 After removing/replacing the Front Paper Guide, be sure to

perform the specified adjustment. See

Chapter 5 “

ADJUSTMENT” (p.98)

 After replacing the Front Paper Guide, be sure to perform the

required lubrication. See Chapter 6 “ MAINTENANCE”

(p.107)

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C A U T I O N

PF Roller

Spur Gear 13.5

A D J U S T M E N T

R E Q U I R E D

Step 2-1

Step 2-2

PF Roller

4.5.18 PF Roller

 Part/Unit that should be removed before removing PF Roller

Upper Housing/Lower Housing/Main Board Unit/Left Frame/Panel Unit/Front Frame/Right Frame/CR Motor/CR Scale/Hopper/Main Frame Assy./ASF Unit/Ink System Unit/Star Wheel Holder Assy./EJ Roller/Front Paper Guide/PF Encoder Sensor/PF Scale

 Removing Procedure

When removing the PF Roller, Be cautious not to touch or damage the coated surface of the PF Roller.

1. Remove the Spur Gear 13.5 from the PF Roller with a flathead precision screwdriver or a similar tool.

2. Release the PF Roller from the cutout of the Base Frame (Step 2-1), and remove it (Step 2-2).

Figure 4-86. Removing PF Roller (2)

 After removing/replacing the PF Roller, be sure to perform

the specified adjustment. See

Chapter 5 “ ADJUSTMENT”

(p.98)

 After replacing the PF Roller, be sure to perform the required

lubrication. See

Chapter 6 “ MAINTENANCE” (p.107)

Figure 4-85. Removing PF Roller (2)

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A: Waste Ink Pads x2

B: Waste Ink Pads x3 C: Waste Ink Pads x1

Waste Ink Cover

Diffusion Sheet

Guide Pin and

Positioning Hole

A D J U S T M E N T

R E Q U I R E D

1 2

3 4 5

4.5.19 Waste Ink Pads

 Part/Unit that should be removed before removing Waste Ink Pads

 Removal Procedure

1. Remove the Waste Ink Pads (x6) from the sections indicated with A to C of the Base Frame.

Figure 4-87. Removing Waste Ink Pads

 When installing the Diffusion Sheet, Waste Ink Cover, and the

Waste Ink Pads (x3) on section B, attach them in the order given in the figure below

Figure 4-89. Installing Waste Ink Pads

 When installing the Waste Ink Cover, be sure to align the

guide pin (x1) of the Base Frame with the positioning hole (x1) of the Waste Ink Cover. Make sure the cover is properly secured on the Diffusion Sheet without any gaps as shown in

Figure 4-88.

2. Remove the Waste Ink Cover and the Diffusion Sheet.

Figure 4-88. Removing Waste Ink Cover and Diffusion Sheet

After replacing the Waste Ink Pads, be sure to perform specified adjustment. See

Chapter 5 “ ADJUSTMENT” (p.98)

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ADJUSTMENT

CHAPTER

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C H E C K

P O I N T

5.1 Adjustment Items and Overview

For information on how to carry out the adjustments and media

This chapter describes adjustments required after the disassembly/reassembly of the printer.

5.1.1 Servicing Adjustment Item List

The adjustment items of this product are as follows.

Table 5-1. Adjustment Items

Adjustment Item Purpose Method Outline Tool

EEPROM data copy

Initial setting

USB ID input

Head ID input

TOP margin adjustment

First dot position adjustment

Head angular adjustment

Bi-D adjustment

Initialize PF deterioration offset

Disenable PF deterioration offset

When the main board needs to be replaced, use this to copy adjustment values stored on the old main board to the new board. If this copy is completed successfully, all the other adjustments required after replacing the main board are no longer be necessary.

This must be carried out after replacing the main board to apply settings for the target market.

This sets a USB ID of the printer. A computer identifies the printer by the ID when multiple same models are connected via a USB hub.

This must be carried out after replacing the printhead in order to enter the new printhead ID (Head ID) that reduces variation between printheads.

This corrects top margin of printout. A top margin adjustment pattern is printed. Examine the lines printed

This corrects left margin of printout. The print start position in the carriage moving direction is corrected by software.

This must be carried out after replacing the printhead in order to correct tilt of the printhead by software.

This corrects print start timing in bi-directional printing to improve the print quality.

This resets the counter to maintain paper feed accuracy which decreases due to paper dust.

When reading the counter value from the old main board is impossible in the case of replacing the board, use this to set the counter to its maximum value.

Readout the EEPROM data from the main board before removing it. Then replace the board with a new one, and load the EEPROM data to the new board.

Select the target market. The selected market settings are automatically written to the main board.

Enter the product serial number of the printer. The ID is automatically generated and written to the main board.

Enter the ID printed on the Head QR code label attached on the printhead. The correction values are automatically written to the main board.

near the top edge of the printout, and enter the value for the line that is exactly 3 mm away from the top edge.

A first dot adjustment pattern is printed. Examine the lines printed near the left edge of the printout and enter the value for the line that is exactly 5 mm away from the left edge.

A head angular adjustment pattern is printed. Examine the printed lines and enter the value for the most straight lines.

A Bi-D adjustment pattern is printed. Black and color patterns are printed for each of the five dot sizes (ECO, VSD1, VSD2, VSD3, VSD4). So, there are 10 groups. Examine the patterns and enter the value for the pattern with no gap and overlap for each mode.

Reset the counter to its default.

Set the counter to tis maximum value (10000).

required for the adjustments, see the instructions displayed by the Adjustment Program.

• Adjustment Program

•Ruler

• Adjustment Program

•Ruler

• Adjustment Program

ADJUSTMENT Adjustment Items and Overview 99

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Table 5-1. Adjustment Items

Adjustment Item Purpose Method Outline Tool

CR motor heat protection control

PF motor heat protection control

PF adjustment

PF band adjustment

This must be carried out for efficient heat control of the CR motor. Electrical variation of the motor and the power supply board are measured to acquire correction values for them.

This must be carried out for efficient heat control of the PF motor. Electrical variation of the motor and the power supply board are measured to acquire correction values for them.

This corrects variations in paper feed accuracy when using the Microweave to achieve higher print quality.

This corrects variations in paper feed accuracy in the band print mode to achieve higher print quality.

Select the parts that you replaced. The correction values are automatically written to the main board.

A PF adjustment pattern is printed. Examine the printout patterns and select the value for the best pattern. The correction value is registered.

A PF band adjustment pattern is printed. Examine the printout patterns and select the value for the best pattern. The correction value is registered.

Table 5-2. Maintenance Items

Maintenance Item Purpose Method Outline Tool

Waste ink pad counter

Ink charge

The printer causes a maintenance error when the waste ink pad counter reaches its maximum. Use this to reset the counter after replacing the Waste Ink Pad. If you find the counter is close to the maximum during servicing, carry out the pad replacement and the counter reset to avoid the printer returned from the user due to the maintenance error.

This must be carried out after replacing the printhead in order to fill ink inside the new printhead. The printhead becomes ready for print.

After replacing the Waste Ink Pad, reset the counter to its default.

Filling ink inside the printhead is automatically performed. Print a nozzle check pattern to check if all nozzles are firing ink properly.

• Adjustment Program

Table 5-3. Additional Functions

Additional Functions Purpose Method Outline Tool

Final check pattern print

EEPROM dump Use this to readout the EEPROM data for

Printer information check

A4 size Use this to check if the all adjustments have been

US Letter size

Manual CL counter Use this to readout information on the printer

I/C exchange CL counter

Timer CL counter

Print path counter

properly made.

analysis.

operations.

The all adjustment patterns are printed automatically.

The all EEPROM data is automatically readout and stored as a file.

The printer information is automatically readout.

• Adjustment Program

ADJUSTMENT Adjustment Items and Overview 100

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Epson C110, C120, D120 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRODUCT DESCRIPTION

1.1 Features

1.2 Printing Specifications

1.2.1 Basic Specifications

1.2.2 Print Mode

1.2.3 Supported Paper

1.2.4 Printing Area

1.2.5 Ink Cartridge

1.3 Interface

1.4 General Specifications

1.4.1 Electrical Specifications

1.4.2 Environmental Conditions

1.4.3 Durability

1.4.4 Acoustic Noise

1.4.5 Safety Approvals (Safety standards/EMI)

1.5 Operation Buttons & Indicators (LEDs)

1.5.1 Operation Buttons

1.5.2 Indicators (LEDs)

1.5.3 Operation Buttons & LEDs Functions

1.5.4 Errors & Remedies

OPERATING PRINCIPLE

2.1 Overview

2.1.1 Printer Mechanism

2.1.2 Motors & Sensors

2.2 Printer Mechanism Operating Principles

2.2.1 Printhead

2.2.1.1 Printing Process

2.2.1.2 Printing Method

2.2.2 Carriage Mechanism

2.2.2.1 CR Motor Control

2.2.2.2 Carriage Home Position Detection

2.2.3 Paper Loading/Paper Feed Mechanism

2.2.3.1 Paper Loading Mechanism (ASF Unit)

2.2.3.2 Paper Feed Mechanism

2.2.4 Ink System Mechanism

2.2.4.1 Capping Mechanism

2.2.4.2 Carriage Lock Mechanism

2.2.4.3 Wiping Mechanism

2.2.4.4 Pump Unit Mechanism

2.2.5 Ink Sequence

TROUBLESHOOTING

3.1 Overview

3.1.2 Preliminary Checks

3.1.1 Specified Tools

3.2 Troubleshooting

3.2.1 Motor and Sensor Troubleshooting

3.2.2 Error Indications and Fault Occurrence Causes

3.2.3 Superficial Phenomenon-Based Troubleshooting

DISASSEMBLY/ASSEMBLY

4.1 Overview

4.1.1 Precautions

4.1.2 Tools

4.1.3 Work Completion Check

4.2 Disassembly Procedures

4.3 Removing Housing

4.3.1 Paper Support Assy.

4.3.2 Stacker Assy.

4.3.3 Cover Printer

4.3.4 Upper Housing/Cover Open Sensor

4.4 Removing Board

4.4.1 Main Board Unit/Left Frame

4.4.2 Panel Unit

4.4.3 Power Supply Unit

4.5 Disassembling Printer Mechanism

4.5.1 Removing Printer Mechanism (Lower Housing)

4.5.2 Printhead

4.5.3 CR Scale

4.5.4 Hopper

4.5.5 Front Frame/Right Frame

4.5.6 Star Wheel Holder Assy.

4.5.7 EJ Roller

4.5.8 PF Encoder Sensor

4.5.9 PF Scale

4.5.10 PF Motor

4.5.11 CR Motor

4.5.12 Main Frame Assy.