Epson C 60 Service Manual

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Page 1

SERVICE MANUAL

Color Inkjet Printer

EPSON Stylus C 60

SEIJ01005

Page 2

Notice

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

 The contents of this manual are subject to change witho ut 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 identif ic ation purp ose only and may be trademarks or registe red tr ademarks of thei r respec-

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

TPCS Quality Assurance Dept.

2000 SEIKO EPSON CORPORATION.

Page 3

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 DISCO NNECT 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 NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

Page 4

About This Manual

ADJUSTMENT

REQUIRED

CAUTION

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 fo r 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 Epson-approved lubricants and adhesives required for servicing the product.

CHAPTER 7.APPENDIX

Provides the following additional information for reference:

• Connector pin assignments

• Electric circuit boards components layout

• Electrical circuit boards schematics

• 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, if not strictly observed, could result in injury or loss of life.

Indicates an operating or maintenan ce pr ocedure, practi ce, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment.

CHECK

PO INT

W ARNING

May indicate an operating or maintenance procedure,

practice or condition that is necessar y to accomplish a task efficiently. It may also provid e additional information that is related to a specific subject, or comment on the results achieved through a previous action.

I.ndicates an operating or maintenance procedure, practice or condition that, if not strictly obser ved, could result i n 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.

Page 5

Revision Status

Revision Issued Date Description

A 2002/8/6 First Release

Page 6

Contents

Chapter 1 PRODUCT DESCRIPTION

1.1 FEATURES ......................................................................................................... 4

1.2 SPECIFICATIONS ............................................................................................ 5

1.2.1 Physical Specification .................................................................................. 5

1.2.2 Printing Specification .................................................................................. 5

1.2.3 Paper Feeding .............................................................................................. 6

1.2.4 Paper Specification ...................................................................................... 6

1.2.4.1 Plain paper ........................................................................................... 6

1.2.4.2 Envelope .............................................................................................. 7

1.2.4.3 Exclusive paper ................................................................................... 7

1.2.5 Printing Area ................................................................................................ 9

1.2.5.1 Cut sheet .............................................................................................. 9

1.2.5.2 Envelopes .......................................................................................... 10

1.2.6 Ink Cartridge Specification ........................................................................ 10

1.2.6.1 Black ink cartridge ............................................................................ 10

1.2.6.2 Color ink cartridge ............................................................................. 11

1.2.7 Electric Specification ................................................................................. 11

1.2.8 Environmental Condition ........................................................................... 12

1.2.9 Reliability .................................................................................................. 12

1.2.10 Safety Approvals ..................................................................................... 12

1.2.11 Acoustic Noise ......................................................................................... 12

1.2.12 CE Marking ............................................................................................. 12

1.3 INTERFACE ..................................................................................................... 13

1.3.1 Parallel Interface (Forward Channel) ........................................................ 13

1.3.2 Parallel Interface (Reserve Channel) ......................................................... 16

1.3.3 USB Interface ............................................................................................ 17

1.3.4 Prevention Hosts of Data Transfer Time-out ............................................. 18

1.3.5 Interface Selection ..................................................................................... 18

1.3.6 IEEE1284.4 Protocol ................................................................................. 18

1.4 PANEL CONTROL ......................................................................................... 19

1.4.1 Indicators (LEDs) ...................................................................................... 19

1.4.2 Panel Functions .......................................................................................... 20

1.4.3 Printer Condition and Panel Status ............................................................ 20

1.4.4 Error Status ................................................................................................ 21

1.4.5 Printer Initialization ................................................................................... 21

Chapter 2 Operating Principles

2.1 Overview ............................................................................................................ 23

2.1.1 Printer Mechanism ..................................................................................... 23

2.1.2 Printhead .................................................................................................... 24

2.1.2.1 Printing Process ................................................................................. 25

2.1.2.2 Printing Method ................................................................................. 25

2.1.3 Carriage Mechanism .................................................................................. 26

2.1.4 Paper Loading/Feeding Mechanism .......................................................... 27

2.1.4.1 Paper Loading Mechanism (ASF unit) .............................................. 28

2.1.4.2 Paper Feeding Mechanism ................................................................ 31

2.1.5 Ink System Mechanism ............................................................................. 32

2.1.5.1 Capping Mechanism .......................................................................... 32

2.1.5.2 Pump unit mechanism ....................................................................... 34

2.1.6 Ink Sequence .............................................................................................. 35

2.2 Electrical Circuit Operating Principles .......................................................... 37

2.2.1 C417 PSB/PSE board ................................................................................ 37

2.2.2 C418 MAIN Board .................................................................................... 40

2.2.2.1 Main Elements ................................................................................... 41

2.2.2.2 Printhead Driver Circuit .................................................................... 42

2.2.2.3 PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit .......................... 43

2.2.2.4 CR Motor Driver Circuit ................................................................... 43

2.2.2.5 Reset Circuit ...................................................................................... 44

2.2.2.6 EEPROM Control Circuit ................................................................. 44

2.2.2.7 Sensor Circuit .................................................................................... 45

Page 7

Chapter 3 Troubleshooting

Chapter 6 Maintenance

3.1 Overview ............................................................................................................ 47

3.2 Troubleshooting with LED Error Indications

and Status Monitor 3 Message ...................................................................... 48

3.3 Unit Level Troubleshooting ............................................................................. 53

Chapter 4 Disassembly and Assembly

4.1 Overview ............................................................................................................ 73

4.1.1 Precautions ................................................................................................. 73

4.1.2 Tools .......................................................................................................... 75

4.1.3 Screws ........................................................................................................ 75

4.1.4 Work Completion Check ........................................................................... 76

4.2 Disassembly ....................................................................................................... 77

4.2.1 Upper housing removal .............................................................................. 78

4.2.2 Printhead removal ...................................................................................... 80

4.2.3 CR unit removal ......................................................................................... 82

4.2.4 CR motor removal ..................................................................................... 85

4.2.5 ASF unit removal ....................................................................................... 86

4.2.6 PSB/PSE unit removal ............................................................................... 88

4.2.7 Holder shaft unit removal .......................................................................... 91

4.2.8 Circuit board removal ................................................................................ 95

4.2.9 Waste drain ink pad (under the ASF unit) removal ................................... 98

4.2.10 Lower housing removal ........................................................................... 99

4.2.11 Caution regarding Ink system removal, PF roller

unit removal and PF motor removal ..................................................... 103

4.2.12 Ink system unit removal

(Cap unit, Pump unit & Waste drain ink pad) .................................................. 104

4.2.13 PF roller unit removal ............................................................................ 107

4.2.14 PF motor removal .................................................................................. 109

6.1 Overview .......................................................................................................... 113

6.1.1 Cleaning ................................................................................................... 113

6.1.2 Service Maintenance ................................................................................ 113

6.1.3 Lubrication ............................................................................................... 115

Chapter 7 Appendix

7.1 Connector Summary ...................................................................................... 119

7.1.1 Major Component Unit ............................................................................ 119

7.1.2 EEPROM Address Map ........................................................................... 121

7.2 Component Layout ......................................................................................... 125

7.3 Exploded Diagram .......................................................................................... 126

7.4 Parts List ......................................................................................................... 131

7.5 Electrical Circuits ........................................................................................... 133

Chapter 5 Adjustment

5.1 Overview .......................................................................................................... 111

5.1.1 Required Adjustment ............................................................................... 111

Page 8

PRODUCT DESCRIPTION

CHAPTER

Page 9

EPSON Stylus C60 Revision A

1.1 FEATURES

The major features of EPSON color inkjet dot matrix printer EPSON Stylus C60 are:



High color print quality



2880 (H) X 720 (V) dpi printing



Four Color Printing (YMCK)



Traditional and New Microweave



Built-in auto sheet feeder



Holds 100 cut-sheets (65g/m2)



Holds 10 envelopes



Holds 10 transparency films



Two built-in interfaces



Bi-directional parallel I/F (IEEE-1284 level 1 device)



USB



Windows/Macintosh exclusive

Figure 1-1. Product’s external view

PRODUCT DESCRIPTION FEATURES 4

Page 10

EPSON Stylus C60 Revision A



1.2 SPECIFICATIONS

This section covers specifications of the printer.

Print direction



Bi-direction with logic seeking



Print speed & printable columns

1.2.1 Physical Specification



Weight : 3.42 kg (without the ink cartridges)



Dimension

Printing : 479.6 mm (W) x 509 mm (D) x 271.8 mm (H)

1.2.2 Printing Specification



Print method



On demand i nk jet



Nozzle configuration



Monochrome 144 nozzles (48 x 3 staggered)



Color 48 nozzles x 3 (Cyan, Magenta, Yellow)

360 dpi

#144

#143

#141 #138 #135

#140 #137 #134

#142 #139

#136 #133

#48

#47 #46 #45

360 dpi

120 dpi

#48 #47

#46 #45

Table 1-1. Character mode (Black only)

Character pitch Character quality Printabl e co l umns CR speed

10 CPI LQ 80 238 CPS*

*CPS: Characters/Second

Table 1-2. Raster graphics mode

Horizontal

resolution

360 dpi

(Normal dot)

360 dpi

(Multi shot 3 dot)

720 dpi 209.8 mm (8.26 inch) 5952 50.80 cm/s (20 IPS*)

1440 dpi 209.8 mm (8.2 6 inc h ) 11904 50.80 cm/s (20 IPS*)

* IPS: Inch/Second



Control code



ESC/P Raster command



EPSON Remote command

Printable area Available dot CR speed

209.8 mm (8.26 inch) 2976 86.36 cm/s (34.0 IPS*)

209.8 mm (8.26 inch ) 2976 60.452 cm/s (23.8 IPS*)



#9 #6

(Black1)

#8 #5

(Black2)

#7 #4

(Black3)

#3 #2

(Cyan)

7.902

(112/360inch)

(Magenta)

#3 #2

(Yellow)

2.2578

(32/360inch)

Character tables



None

- ASCII 96 Codes (Code Number 20H-7FH)



International character sets



None

Figure 1-2. Nozzle configuration

PRODUCT DESCRIPTION SPECIFICATIONS 5

Page 11

EPSON Stylus C60 Revision A

CAUTION



Typeface



Bit map LQ font : EPSON Courier 10 CPI

1.2.4 Paper Specification

1.2.4.1 Plain paper



Input data buffer



32 KB

1.2.3 Paper Feeding



Feeding method



Friction feed with ASF



Paper path



Cut-sheet ASF (Top entry Front out)



Feed speed

Table 1-3. Feed spee d

Feed condition Time Speed

10.16 mm (0.4 inch) feed 110 msec 92.36 mm (3.64 inch)/sec Continuous feed 140 msec 139.7 mm (5.5 inch)/sec

Item

A4 210 297

Letter 215.9 279.4

Legal 215.9 355.6

Executive 184.2 266.7

Half Letter 139.7 215.9

B5 182 257 A5 148 210 A6 105 148

User

defined

Width

(mm)

89-241.3 89-1117.6

Table 1-4. Plain paper

Length

(mm)

Thickness

(mm)

0.08-0.11 (17-24(lb))

Weight

(g/m

64-90

)

Quality

Plain paper

Reclaimed paper



Poor quality paper may reduce print quality and cause paper jams or other problems. If you encounter problems, switch to a higher grade of paper.



Do not load curled or folded paper.



Use paper under normal conditions ;

- Temperature 15 to 25

°°°°

C (59 to 77

°°°°

- Humidity 40 to 60% RH

PRODUCT DESCRIPTION SPECIFICATIONS 6

Page 12

EPSON Stylus C60 Revision A

1.2.4.2 Envelope

Table 1-5. Envelope

Item

No.10 241.3 104.8

DL 220 110

C6 162 114

Envelope

220*132

Width

(mm)

220 132

* Envelope printing is only available at normal temperature. Keep the longer side of the envelope horizontally at setting.



CAUTION

Poor quality paper may reduce print quality and cause paper jams or other problems. If you encounter problems, switch to a higher grade of paper.



Do not load curled or folded paper.



Use paper under normal conditions ;

- Temperature 15 to 25

- Humidity 40 to 60% RH

Length

(mm)

Thickness

(mm)

N/A

°°°°

C (59 to 77

°°°°

Weight

)

(g/m

45-75

(12-20(lb))

Quality *

Bond paper

Air mail

PPC

1.2.4.3 Exclusive paper

Quality: EPSON Exclusive paper Transparency printing is only available at normal temperature

Table 1-6. Exclusive paper

Item Size

Photo Quality

Ink Jet Paper

Photo Quality

Ink Jet Card

360dpi Ink Jet Pape r

Premium Luster

Photo Paper

Width

(mm)

A4 210 297

Letter 215.9 279.4

B5 182 257

5*8 127 203.2

A6 105 148 A4 210 297

Letter 215.9 279.4

Letter 215.9 279.4 0.27 250 (66lb)

Length

(mm)

Thickness

(mm)

102 (27lb) *

0.13 102 (27lb)Legal 215.9 355.6

0.21 180 (48lb)8*10 203.2 254

0.11 89 (24lb)

Weight

(g/m

)

Ink Jet Transparencies

Photo Quality

Glossy Film

Matte PaperHeavyweight

A4 210 297

0.13 N/A

Letter 215.9 279.4

A4 210 297

0.13 N/ALetter 215.9 279.4

A6 105 148 A4 210 297

0.23 167(44Ib)

Letter 215.9 279.4

PRODUCT DESCRIPTION SPECIFICATIONS 7

Page 13

EPSON Stylus C60 Revision A

CAUTION

Table 1-6. Exclusive paper

Item Size

A4 210 297

Letter 215.9 279.4

Photo Paper

Photo Quality Self

Adhesive Sheets

Photo Stickers 16 A6 105 148 0.19 167 (44lb)

Photo Stickers 4 A6 105 148 0.19 167 (44lb)

Iron-On Cool Peel

Transfer Paper

Premium Glossy

Photo Paper

Premium Semigloss

Photo Paper

Card 100 148

Photo Paper

4*6

Panorama 210 594

A4 210 297 0.19 167 (44lb)

A4 210 297

Letter 215.9 279.4

A4 210 297

Letter 215.9 279.4

A4 210 297

Letter 215.9 279.4

Width

(mm)

113.6 175.4

Length

(mm)

Thickness

(mm)

0.23 194 (52lb)

0.18 124 (33lb)

0.27 255 (68lb)

0.27 250 (66lb)

Weight

(g/m



Poor quality paper may reduce print quality and cause paper

)

jams or other problems. If you encounter problems, switch to a higher grade of paper.



Do not load curled or folded paper.



Use paper under normal conditions ;

- Temperature 15 to 25

°°°°

C (59 to 77

°°°°

- Humidity 40 to 60% RH



EPSON Photo Quality G lossy Film and Self Adhesive Sheets should be stored under the following conditions ;

- Temperature 15 to 30

°°°°

C (59 to 86

°°°°

- Humidity 20 to 60% RH

Premium Ink Jet

Plain Paper

Bright White Ink Jet Paper

A4 210 297 0.11 80 (21lb)

A4 210 29 7 0.13 92.5 (25lb)

* 98 (26lb) for EU

PRODUCT DESCRIPTION SPECIFICATIONS 8

Page 14

EPSON Stylus C60 Revision A

1.2.5 Printing Area

1.2.5.1 Cut sheet

Refer to the following table. As for each margin area, refer to Figure 1-3.

Table 1-7. Printing area

Paper size

A4 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)

Letter 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)

B5 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)

Legal 3 mm (0.12”) 3 mm (0 .12”) 3 mm (0.12”)

Statement 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)

Executive 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”)

Left margin

(min.)

* Bottom margin can be set to 3 mm at minimum when the paper length is

designated with "ESC (S" command). However, the printing quality is not guaranteed in the area, ranging from 3 mm to 14 mm, from the form lower end. When the paper length is not designated, the bottom margin must be wider than 14 mm.

Right margin

(min.)

Top margin

(min.)

Bottom margin

14 mm (0.54”) / 3mm (0.12”) *

(min.)

Printable area

Figure 1-3. Printable area for cut sheet

PRODUCT DESCRIPTION SPECIFICATIONS 9

Page 15

EPSON Stylus C60 Revision A

(Rib area)

1.2.5.2 Envelopes

Refer to the following table. As for each margin area, refer to Figure 1-4.

Table 1-8. Envelope margin

Paper size

#10 3 mm (0.12”) 28 mm (1.10”) 3 mm (0.12”) 14 mm (0.55”) DL 3 mm (0.12”) 7 mm (0.28”) 3 mm (0.12”) 14 mm (0.55”)

C6 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.55”)

Left margin

(min.)

Right margin

(min.)

Printable area

Top margin

(min.)

Bottom margin

(min.)

1.2.6 Ink Cartridge Specification

1.2.6.1 Black ink cartridge



Type : Exclusive cartridge



Color : Black



Print capacity : 600 pages/A4

(ISO/IEC 10561 Letter Pattern at 360 dpi)



Ink life : 2 years from production date



Storage temperature:



Storage -20 oC to 40 oC (within a month at 40 oC)



Packing -30 oC to 40 oC (within a month at 40 oC)



Transit -30 oC to 60 oC (within 120 hours at 60 oC

and within a month at 40



Dimension : 28.1 mm (W) x 66.85 mm (D) x 43.3 mm (H)

Figure 1-4. Printable area for envelopes

Figure 1-5. Black ink cartridge

PRODUCT DESCRIPTION SPECIFICATIONS 10

Page 16

EPSON Stylus C60 Revision A

1.2.6.2 Color ink cartridge



Type : Exclusive cartridge



Color : Magenta, Cyan, Yellow



Print capacity : 300 pages / A4 (360 dpi, 5% duty each color)



Ink life : 2 years from production date



Storage temperature:



Storage -20 oC to 40 oC (within a month at 40 oC)



Packing -30 oC to 40 oC (within a month at 40 oC)



Transit -30 oC to 60 oC (within 120 hours at 60 oC

and within a month at 40



Dimension : 43.2 mm (W) x 66.85 mm (D) x 43.3 mm (H)

(Rib area)

1.2.7 Electric Specification

[120V Version]



Rated voltage : AC120V



Input voltage range : AC99∼132V



Rated frequency range : 50∼ 60Hz



Input frequency range : 49.5∼ 60.5Hz



Rated current : 0.4A



Power consumption : Approx. 17W (ISO10561 Letter Pattern)

Approx. 4W in standby mode Energy Star compliant



Insulation resistance : 100M ohms min.

(between AC line and chassis, DC 500V)



Dielectric strength : AC 1000V rms. 1 minute or

AC 1200V rms. 1 second (between AC line and chassis)

[220 ∼ 240V Version]



Rated voltage : AC220V∼240V



Input voltage range : AC198∼264V



Rated frequency range : 50∼60Hz



Input frequency range : 49.5∼60.5Hz



Rated current : 0.2 A



Power consumption : Approx. 17W (ISO10561 Letter Pattern)

Approx. 4.5W in standby mode

(Rib area)

Figure 1-6. Color ink cartridge

Note 1: Ink cartridge can not re-fill, only ink cartridge is prepared for article

of consumption. Note 2: Do not use the ink cartridge which was passed away the ink life. Note 3: Ink will be frozen under -18 ~ -21

usable after placing it more than 3 hours at room temperature.

C environment, however it will be



Insulation resistance : 100M ohms min.



Dielectric strength : AC 1500V rms. 1 minute

Energy Star compliant

(between AC line and chassis, DC 500V)

(between AC line and chassis)

PRODUCT DESCRIPTION SPECIFICATIONS 11

Page 17

EPSON Stylus C60 Revision A

1.2.8 Environmental Condition



Temperature



Operating : 10 to 35°C (Refer to Figure 1-7)



Non-operating : -20 to 60°C (with shipment container)

1 month at 40°C and 120 hours at 60°C



Humidity



Operating : 20 to 80% RH

(without condensation / Refer to Figure 1-7)



Non-operating : 5 to 85% RH

(without condensation / with shipment container)



Resistance to shock



Operating : 1G, within 1 ms



Non-operating : 2G, within 2 ms (with shipment container)



Resistance to vibration



Operating : 0.15G



Non-operating : 0.50G (with shipment container)

80 70 60

Humidity (%)

50 40 30 20

Temperature (°C)

1.2.9 Reliability



Total print volume : 50,000 pages (A4, Letter)

or 5 years although less than 50,000 pages printing



Print head life : 3 billion dots/nozzle

1.2.10 Safety Approvals

[120V Version]



Safety standards : UL1950

CSA22.2 No.950



EMI : FCC part15 subpart B Class B

CSA C108.8 Class B

[220∼240V Version]



Safety standards: : EN60950 (VDE)



EMI : EN55022 (CISPR Pub.22) Class B

AS/NZS 3548 Class B

1.2.11 Acoustic Noise



Level : Approx. 45dB(A) (According to ISO 7779)

1.2.12 CE Marking

[220∼240V Version]



Low voltage directive 73/23/EEC : EN60950



EMC directive 89/336/EEC : EN55022 Class B

EN61000-3-2 EN61000-3-3 EN50082-1

IEC801-2 IEC801-3 EC801-4

Figure 1-7. Temperature/Humidity range

PRODUCT DESCRIPTION SPECIFICATIONS 12

Page 18

EPSON Stylus C60 Revision A

1.3 INTERFACE

The EPSON Stylus C60 provides USB and parallel interface as standard.

1.3.1 Parallel Interface (Forward Channel)



Transmission mode : 8 bit parallel, IEEE-1284 compatibility mode



Synchronization : By STROBE pulse



Handshaking : BY BUSY and ACKNLG signal



Signal level : TTL compatible level



Adaptable connector : 57-30360 (amphenol) or equivalent

DATA

-STROBE

BUSY

-ACKNLG

ready

setup

data byte n

hold

busy

stb

ack

nbusy

data byte n+1

BUSY signal is set high before setting either -ERROR low or PE high, and held high until all these signals return to their inactive state.

BUSY signal is at high level in the following cases.



During data entry (see data transmission timing)



When input data buffer is full



During -INIT signal is at low level or during hardware initialization



During printer error (see -ERROR signal)



When the parallel interface is not selected

ERROR signal is at low level when the printer is in one of the following states.



Printer hardware error (fatal error)



Paper-out error



Paper-ja m error



Ink-out error



No ink cartridge



Maintenance request

PE signal is at high level during paper-out error.

Figure 1-8. Data transmission timing

Table 1-9. Data transmission timing

Parameter Minimum Maximum

tsetup 500ns -

thold 500ns -

tstb 500ns -

tready 0 -

tbusy - 500ns tt-out* - 120ns tt-in** - 200ns

treply 0 -

tack 500ns 10us

tnbusy 0 -

tnext 0 -

* Rise and fall time of every output signals ** Rise and fall time of every input signals *** Typical timing of tack is shown on the following page.

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EPSON Stylus C60 Revision A

Table 1-10. Typical time of tack

Parallel I/F mode Typical time of tack

High Speed 0.5us

Normal Speed 2us

Table 1-11. Signal level: TTL compatible (IEEE-1284 level 1 device)

Parameter Minimum Maximum Condition

VOH* - 5.5V

VOL* -0.5V -

IOH* - 0.32mA VOH = 2.4V IOL* - 12mA VOL = 0.4V

CO - 50pF

VIH - 2.0V

VIL 0.8V -

IIH - 0.32mA VIH = 2.0V

IIL - 12mA VIL = 0.8V

CI - 50pF

* A low logic level on the Logic H signal is 2.0V or less when the printer

is powered off and this signal is equal or exceeding 3.0V when the printer is powered on. The receiver shall provide an impedance equivalent to 7.5K ohm to ground.

Table 1-12. Connector pin assignment and signals

Pin No. Signal n ame

1 -STROBE 19 In

2 DATA0 20 In 3 DATA1 21 In 4 DATA2 22 In 5 DATA3 23 In 6 DATA4 24 In 7 DATA5 25 In 8 DATA6 26 In 9 DATA7 27 In

10 -ACKNLG 28 Out

11 BUSY 29 Out

12 PE 28 Out A high signal indicates pape r-out error.

13 SLCT 28 Out

14 -AFXT 30 In Not used.

Return

GND pin

In/Out Functional description

The strobe pulse. Read-i n of da ta is performed at the falling edge of this pulse.

The DATA0 through DATA7 signals represent data bits 0 to 7, respectively.

Each signal is at high level when data is logical 1 and low level when data is logical 0.

This signal is a nega tive pulse indicating that the printer can accept data ag ai n.

A high signal indicates that the printer cannot receive da ta .

Always at high level when the printer is powered on.

The falling edge of a negative pulse or a

31 -INIT 30 In

32 -ERROR 29 Out

36 -SLIN 30 In Not used. 18 Logic H - Out Pulled up to +5V via 3.9 K ohm resistor.

low signal on this line causes the printer to initialize. Minimum 50us pulse is necessary.

A low signal indicates printer error condition.

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EPSON Stylus C60 Revision A

Table 1-12. Connector pin assignment and signals (continued)

Pin No. Signal name

35 +5V - Out Pulled up to +5V via 3.3K ohm resistor. 17 Chassis GND - - Chassis GND.

16,33, 19-30

15,34 NC - - Not connected.

NOTE:

GND - - Signal GND.

In/Out refers to the direction of signal flow from the printer’s point of

Return

GND pin

In/Out Functional description

view.

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EPSON Stylus C60 Revision A

1.3.2 Parallel Interface (Reserve Channel)



Transmission mode : IEEE-1284 nibble mode



Adaptable connector : See forward channel



Synchronization : Refer to the IEEE-1284 specification



Handshaking : Refer to the IEEE-1284 specification



Data trans. timing : Refer to the IEEE-1284 specification



Signal level : IEEE-1284 level 1 device

See forward channel.

Table 1-13. Connector pin assignment and signals

Pin No. Signal name

1 HostClk 19 In Host clock signal. 2 DATA0 20 In 3 DATA1 21 In 4 DATA2 22 In 5 DATA3 23 In 6 DATA4 24 In 7 DATA5 25 In 8 DATA6 26 In

Return

GND pin

In/Out Functional des cri p tion

The DATA0 through DATA7 signals represent data bit s 0 to 7, re sp e ct i ve ly .

Each signal is at high level when data is logical 1 and low level when data is logical 0.

These signals are used to transfer the 1284 extensibility request values to the printer.

Table 1-13. Connector pin assignment and signals (continued)

Pin No. Signal name

36 1284-Active 30 In 1284 active signal. 18 Logic-H - Out Pulled up to +5V via 3.9K ohm resistor. 35 +5V - Out Pulled up to +5V via 3.3K ohm resistor. 17 Chassis GND - - Chas sis GND.

16,33,

19-30 15,34 NC - - Not connected.

NOTE:

-DataAvail / DataBit-0,4

GND - - Signal GND.

In/Out refers to the direction of signal flow from the printer’s point of view.



Extensibility request The printer responds affirmatively when the extensibility request values are 00H

or 04H, that means,

00H : Request nibble mode reverse channel transfer. 04H : Request Device ID;

Return data using nibble mode reverse channel transfer.

Return

GND pin

29 Out

In/Out Functional description

Data available signal and reverse channel transfer data bit 0 or 4.

9 DATA7 27 In

10 PtrClk 28 Out Printer clock signal.

14 HostBusy 30 In Host busy signal. 31 -INIT 30 In Not used.

PtrBusy /

DataBit-3,7

AckDataReq / DataBit-2,6

Xflag /

DataBit-1,5

29 Out

28 Out

Printer busy signal and reverse channel transfer data bit 3 or 7.

Acknowledge data request signal and reverse channel transfer data bit 2 or 6.

X-flag sig nal and reverse channel transfer data bit 1 or 5.

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EPSON Stylus C60 Revision A

Pin #1

Pin #3

Pin #2

Pin #4



Device ID: The printer sends the following device ID string when it is requested.

When IEEE1284.4 is enabled,

[00H] [4EH] MFG : EPSON; CMD : ESCPL2, BDC, D4; MDL : Stylus[SP]C60; CLS : PRINTER; DES : EPSON[SP]Stylus[SP]C60;

When IEEE1284.4 is disabled,

[00H] [4BH] MFG : EPSON; CMD : ESCPL2, BDC; MDL : Stylus[SP]C60; CLS : PRINTER; DES : EPSON[SP]Stylus[SP]C60;

Note 1: [00H] denotes a hexadecimal value of zero. Note2: MDL value depends on the EEPROM setting. Note3: CMD value depends on the IEEE1284.4 setting.

1.3.3 USB Interface



Standard : Based on

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



Bit rate : 12Mbps (Full Speed Device)



Data encoding : NRZI



Adaptable connector : USB Series B



Recommended cable length : 2 meters

Table 1-14. Connector pin assignment and signals

Pin No. Signal name I/O Function description

1 VCC - Cable power. Max. p ower consu mptio n is 2mA . 2 -Data Bi-D Data 3 +Data Bi-D Data, pull up to +3.3V via 1.5K ohm resistor. 4 Ground - Cable gr ound

Figure 1-9. USB pin assignment

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EPSON Stylus C60 Revision A



1.3.4 Prevention Hosts of Data Transfer Time-out

Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy state for dozens of seconds continuously. To prevent hosts of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in busy state. This slowdown is started when the remaining input buffer becomes several hundreds of bytes, and the printer is finally in the busy state continuously when the input buffer is full. USB and IEEE1284.4 on the parallel interface do not require this function.

On An initial state is IEEE1284.4 communication and data that received it by the time it is able to take sy nchroni zation by magic s tring (1284 .4 syn chronou s comman ds) is discarded.



Off An initial state is compatible interface and never starts IEEE1284.4 communication even if magic strings (1284.4 synchronous commands) are received.

1.3.5 Interface Selection

The printer has two built-in interfaces: the USB and parallel interface. These interfaces are selected automatically.



Automatic selection In this automatic interface selection mode, the printer is initialized to the idle state scanning which interface receives data when it is powered on. Then the interface which receives data first is selected. When the host stops data transfer and the printer is in the stand-by state for seconds, the printer is returned to the idle state. As long as the host sends data or the printer interface is in busy state, the selected interface is let as it is.



Interface state and interface selection When the parallel interface is not selected, the interface gets into the busy state. When the printer is initialized or returned to the idle state, the parallel interface gets into the ready state. Caution that the interrupt signal such as the -INIT signal on the parallel interface is not effective while that interface is not selected.

1.3.6 IEEE1284.4 Protocol

The packet protocol described by IEEE1284.4 standard allows a device to carry on multiple exchanges or conversations which contain data and/or control information with another device at the sa me time across a s ingle point-t o-point link. The prot ocol i s not, however, a device control language. It provides basic transport-level flow control and multiplexing services. The multiplexed logical channels are independent of each other and blocking of one has no effect on the others. The protocol operates over IEEE1284.



Automatic selection An initial state is compatible interface and starts IEEE1284.4 communication when magic strings (1284.4 synchronous commands) are received.

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1.4 PANEL CONTROL

The control panel of the EPSON Stylus C60 is composed of the 2 non-lock type pushbuttons, 1 lock-type push-button, and 2 LEDs, as shown figure below.

Power

(1)

Ink cartridge exchange

Error reset

(2)

1.4.1 Indicators (LEDs)

(1) Power

Lights when the operating switch is “ON” and AC power is supplied.

(2) Error

Lights or blinks when so me error has oc curred on th e printer.

Figure 1-10. Control panel

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EPSON Stylus C60 Revision A

1.4.2 Panel Functions

Table 1-15. Panel functions

Switch Function

• Loads or Ejects the paper (Pushing within 3seconds).

Error reset SW

Ink cartridge exchange SW

* This function is not available in printing status.

Switch Function

Error reset SW

Ink cartridge

exchange SW

*1 Not described in the user's manual.

• Starts the cleaning of head (Pushin g for 3seconds).

• When carriage is on the ink cartridge change position, return carriage from ink cartridge change position.

• Starts the ink cartridge change sequence. *

Table 1-16. Panel functions with power on

• Start status printings.

• Selects IEEE 1284.4 mode for parallel I/F. *1

1.4.3 Printer Condition and Panel Status

Table 1-17. Printer condition and LED status

Printer status

Power ON condition On - 10 Ink sequence Blink - 6 Ink Cartridge change mode Blink - 5 Data processing Blink - 9 Paper Out *1 - On 4 Paper jam condition *1 - On 3 Ink end (Black) *1 - On -> Blink 8 Ink level low (Black) - Blink-> Blink 8 Ink end (Color) *1 - On -> Blink2 8 Ink level low (Color) - Blink-> Blink2 8 Ink end (Black and Color) - On -> On 8 No Ink Cartridge

(Black and Color) *1 Maintenance request

(Ink Overflow Counter error) *1

Power Error

- On 7

Alt Blink Alt Blink 2

Indicators

Priority

Fatal error *1 Off On 1 Special setting Blink2 Blink2 -

" - " : Indicator status don't change. " A -> B " :A is a indicator condition when carriage is in Home Position.

B is a indicator condition in Ink exchange sequence. *1: See 1.4.4 "Error Status" for detailed information. Blink : On 0.5sec + Off 0.5sec

Blink2 : On 0.2sec + Off 0.2sec + On 0.2sec + Off 0.4sec

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1.4.4 Error Status



Ink end

When the printer runs out the most amo unt o f the ink o f an y on e colo r, it ind icates ink-low and keeps printing. When the printer runs out the whole ink of any color, it stops printing and indicates ink end error. User is then requested to install a new ink-cartridge in this state.



Paper out error

When the printer fails to load a sheet, it goes into a paper out error.



Paper jam error

When the printer fails to eject a sheet, it goes into a paper jam error.



No ink cartridge

When the printer detects that ink cartridge comes off, or failed to read or write CSIC data, it goes into this error mode.



Maintenance request

When the total amount of ink wasted through cleanings and flushing reaches to the limit, printer indicates this error and stops. In such a case, the absorber in the printer enclosure needs to be replaced with new one by a service person.



Fatal errors

Carriage control error.

1.4.5 Printer Initialization

There are four kinds of initialization method, and the following explains each initialization.

1. Power-on initialization This printer is initialized when turning the printer power on, or printer recognized the cold-reset command (remote RS command). When printer is initialized, the following actions are performed. (a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets default values

2. Operator initialization This printer is initialized when turning the printer power on again within 10 seconds from last power off, or printer recognized the -INIT signal (negative pulse) of parallel interface. When printer is initialized, the following actions are performed. (a) Cap the printer head (b) Eject a paper (c) Clears input data buffer (d) Clears print buffer (e) Sets default values

3. Software initialization The ESC@ command also initialize the printer. When printer is initialized, the following actions are performed. (a) Clears print buffer (b) Sets default values

4. Power-on initialization except I/F The printer recognized the IEEE 1284.4 “rs” command. When printer is initialized, following action is performed. (a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets default values except I/F

PRODUCT DESCRIPTION PANEL CONTROL 21

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OPERATING PRINCIPLES

CHAPTER

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EPSON Stylus C60 Revision A

2.1 Overview

This section describes the operating principles of the Printer mechanism and electrical circuit boards. Like the previous printers (Stylus COLOR 480/580), the Stylus C60 has only the following two circuit boards and does not have the control panel board.



Main board : C418 MAIN



Power supply board : C417 PSB/PSE

: Due to this, the Stylus COLOR 480/580 does no t have sw itches ( Power, Err or reset, Ink cartridge replacement) and LEDs. However, the Stylus C60 has them on C418 Main board instead of the control panel board.

2.1.1 Printer Mechanism

The Printer mechanism for the Stylus C60 is newly designed. But, the basic compo nent of the Printer mechanism is almost the same as the previous printer (Stylus COLOR 480/580). This printer consists of Printhead, Carriage mechanism, Paper loading mechanism, Paper feeding mechanism, Ink system (Pump mechanism including newly designed Carriage lock mechanism, Capping mechanism including newly designed Wiper mechanism).

Like the previous printers (Stylus COLOR 480/580), the Stylus C60 is equipped with two stepping motors; one for the Paper loading/feeding mechanism and the Pump mechanism with the CR lock mechanism, and one for the CR mechanism. The ASF unit for the Paper loading mechanism uses rear entry front eject system. And, single LD roller in Holder shaft unit loads a paper to the Printer mechanism.

The Cap unit which adopts the valveless mechanism is newly designed on this printer as follows.

Star wheel roller

CR unit

Paper eject roller

PF motor

PF rolle

CR timing belt

HP/PE Sensor

LD Roller

Pad holder

(Paper return plate)

LD pad

Compression spring

Clutch mechanism



No porous pad in cap



Cap unit with wiper

Change lever

Cap unit

CR motor

Pump unit

Figure 2-1. Printer mechanism block diagram

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EPSON Stylus C60 Revision A



2.1.2 Printhead

The Printhead uses the same U-CHIPS type as the previous printer (Stylus COLOR

680), and makes it possible to perform multiple shot printing and variable dot printing. The Printhead nozzle configuration is as follows.



Nozzle layout Black: 48 nozzles x 3 staggered (nozzle pitch of row: 1/360 inch) Color: 48 nozzles x 1 row/col.

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

(nozzle pitch of row: 1/120 inch)

0.0706(1/360inch)

0.2117(3/360inch)

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.



Electric poles for CSIC

This electric poles connects the CSIC chip mounted on the ink cartridge. By using this poles, current ink consumption amount data is red out from the CSIC chip. And, the latest ink consumption amount data is written into the CSIC chip.



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



Filter When the ink cartridge is installed, if any dirt or dust around the cartridge needle is absorbed into the Printhead, there is a great possibility of causing nozzle clog and disturbance of ink flow, and alignment failure and dot missing finally. To prevent this problem, a filter is set under the cartridge needle.



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.

Figure 2-2. Nozzle layout

CSIC chip

Nozzle selector board

The Printhead has the electric poles to store the ink consumption amount data into the CSIC chip mounted on the ink cartridge. By storing the ink consumption amount data, this printer can detect the ink consumption status, such as ink low/end condition.

Ink cartridge

Needle

Elect ric poles for CSIC

The basic operating principles of the Printhead, which plays a major role in printing, are the same as the previous printer (Stylus COLOR 680); on-demand method which uses PZT (Piezo Electric Element). In order to uniform the ejected ink amount, the

* Head ID for the Prin th e a d

is stored to the EEPROM.

Printhead has its own Head ID (11 digits code for this Printhead) which adjusts PZT voltage drive features. So, you are required to store the Head I D pasted on the Printhead into the EEPROM by using the Adjustment program when replacing the Printhead, the Main board, the Printer mechanism with new one. (Note : there are no resistor arrays to determine the Head ID on the Main board.) And then, based on the stored Head ID into the EEPROM, the Main board generates appropriate PZT drive voltage.

Following explains the basic components for the Printhead.

Nozzle plate

Filter

PZT

Cavity

Figure 2-3. Printhead sectional dra wing

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EPSON Stylus C60 Revision A

2.1.2.1 Printing Process

This section explains the process which the Printheads of On-Demand inkjet printers eject ink from each nozzle.

Normal state :

When the printing signal is not output from C418 Main board, or the PZT drive voltage is not applied, the PZT does not change the shape. Therefor e, the PZT does not push the ink cavity. The ink pressure inside the ink cavity is kept normal. (Refer to Figure 2-4 : Normal state)

Ejecting state :

When the print signal is output from the C418 Main board, the nozzle selector IC located on the Printhead latches the data once by 1-byte unit. Based on the drive waveform (common 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 2-4 : Ejecting state)

Ink path

Normal state

PZT

Ink cavity

2.1.2.2 Printing Method

For printing dot system, the Stylus C60 has the following two kinds of printing mode.



Multiple shot printing



Variable dot printing

The above two printing modes are automatically selected depending on the media and the resolution setting of the printer driver. The following explains each printing mode.



Multiple shot printing This printing mode is developed to improve the print quality on plain paper or transparencies in low resolution. The multiple shot printing mo de uses n ormal do t, and the number of dot shot varies from 1 shot to maximum 3 shots depending on the print data to enable to output sharp image even in a low resolution.



Variable dot printing This printing mode is developed to improve the print quality on exclusive paper. This mode is basically the same as variable dot printing mode used on other products; micro dot, middle dot and la rge dot compose this mode. The pri nting dot size varies according to the print data and this mode enab les to output even sharper image on exclusive paper.

Nozzle

PZT drive voltage

Ejecting state

Nozzle plate

Figure 2-4. Printhead printing process

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2.1.3 Carriage Mechanism

The Carriage mechanism consists of CR motor, Carriage unit (including the Printhead and CR guide shaft), CR timing belt and CR home pos i ti on s ens or (H P/ PE s ens or) etc. Following figure shows you each component for the CR mechanism.

HP/PE sensor

HP detection lever

CR unit

CR guide shaft

Figure 2-5. Carriage mechanism (Top view)

The following stepping motor controls the CR mechanism on this printer.

Table 2-1. Carriage motor specification

Items Specifications

Type 4-Phase/ 200-Poles HB Stepping motor

Drive Voltage +42 V +/ - 5% (DRV IC voltage)

CR motor

CR timing belt

The drive of the CR motor is transmitted to the CR unit via the CR timing belt. And, the CR home position is detected with the HP/PE sensor. This sens or is available as the CR home position sensor while the CR motor operates in each sequence. (The function of this sensor varies depen ding on the run ning condition of the motors. I t is availab le as the PE sensor when the PF motor operates in each sequence.)

When the detection plate molded on the CR unit pushes down the HP detection lever and the CR home position is detected with HP/PE sensor, HIGH signal is output to the CPU.

HP detection lever

CR HP detection plate

HP detection lever

Low signal

Right side view

CR HP detection plate

High signal

Figure 2-6. CR home position detection

Moreover, like the previous printers (Stylus COLOR 480/580), this printer does not also have the PG adjustment mechanism. Therefore, the CR guide shaft is assembled with the defined PG value (1.7 ± 0.2 mm).

Coil Resistance 7.8 Ω +/ - 10% (per phase at 25 degrees)

Inductance 14 mH +/ - 20% (1KH 1Vrms)

Drive Method Bi-Polar drive

Driver IC LB1946

For your reference, sensor although the CR unit moves correctly, the printer indicates the "Fatal error". And also, in case that the CR unit cannot move outside the home position and the CR home position is not detected with the HP/PE sensor, the printer indicates the "Paper jam error".

in case that the CR home position is not detected with the HP/PE

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2.1.4 Paper Loading/Feeding Mechanism

The following stepping motor controls the Paper loading/feeding mechanism on this printer.

Table 2-2. PF motor specifications

Item Description

Motor type 4-Phase/ 96-Poles PM Stepping motor

Drive voltage +42 V +/ - 5% (DRV IC voltage)

Coil Resistance 6 Ω +/ - 10% (per phase at 25 degrees)

Inductance 9.5 mH +/ - 20% (1kH 1Vrms)

Driving method Bi-Polar drive

Driver IC LB1946

Left side view

HP/PE sensor

Spur gear 60 (PF roller)

Spur gear 60

PF roller

(Paper eject roller )

The drive of the PF motor is transmitted to the LD roller shaft and the PF roller through gears for the Paper loading/feeding mechanism. The Paper loading mechanism plays a role in loading a paper from the ASF unit to the PF roller. And also, the Paper feeding mechanism plays a role in feeding a paper loaded from the ASF unit. The functions of the Paper loading/feeding mechanism varies depending on the rotational direction of the PF motor as the table below.

Table 2-3. ASF unit function & PF motor rotational direction

Directions

Clockwise

Counterclockwise

: The PF motor rotation direction = seen from the left side of the printer.

Following shows you the transmission path of the PF motor drive to the LD roller, the PF roller and the Paper eject roller. ( order of transmission path.)

Spur gear 10,8 (PF roller)

Corresponding functions

• Release the Change lever from the Clutch mechanism

• Pick up and feed a paper

• Set the Change lever on the Clutch mechanism

The numbers in the fol low ing figure show you the

Right side view

Spur gear

35.2 No paper

Detect a

paper

PF motor pinion gear

PF motor

Paper eject roller

Combination gear 18.28

Spur gear 27.2

Combination gear 16.32

Spur gear 25.6

PE detection

Low signal

Paper

lever

High signal

Note: The Clutch gear is molded on the backside of the Spur gear 35.2 such as Combination gear.

Figure 2-7. Paper loading/feeding mechanism

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EPSON Stylus C60 Revision A

For your reference, the top or the end of a paper is usually detected with the HP/PE sensor. In case that the HP/PE sensor cannot detect the top of a paper in the paper loading sequence, the printer indicates the "Paper out error". If the HP/PE sensor cannot detect the end of a paper in the paper feeding sequence, the p rinter ind icates th e "Paper jam error". As for the details, refer to Chapter 3 "Troubleshooting".

2.1.4.1 Paper Loading Mechanism (ASF unit)

The Paper loading mechanism consists of the Change lever in the Pump unit, the Holder shaft unit (including the Clutch mechanism) and the ASF unit. The Change lever and the Clutch mechanism play a major role in the Paper loading mechanism as follows.

1. ASF home position detection function The ASF unit on this printer does not have the ASF home position sensor. Instead of the ASF home position sensor, the Change lever and the Clutch mechanism is used to detect the ASF home position. When the Change lever is set on the Clutch mech anism with the counterclockwise rotation of the PF motor pinion gear, the ASF home position is detected by this lever for the paper loading operation. In this time, the printer cannot load a paper from ASF unit because the drive of the PF motor is not transmitted to the LD roller shaft.

2. Paper loading function When the Change lever is released from the Clutch mechanism with the clock wise rotation of the PF motor pinion gear, the ASF home position detection function is changed over to the paper loading function . Therefore , the printer can lo ad a paper from ASF unit because the drive of the PF motor is transmitted to LD roller shaft.

On this printer, the Paper return plate is built in ASF unit instead of the Paper return lever. The LD pad is stacked on the Paper return plate, and it works with the tension force of the Torsion spring 29.1 mounted on the ASF frame. When an arc portion of the LD roller pushes down this plate into the ASF frame d uring the paper loading sequence, a paper is loaded from the ASF unit. A cutout portion of the LD roller releases this lever and this plate returns papers to the stand-by position for next paper l oading operation.

Following figures (Refer to Figure 2-8/Figure 2-9) show you the ASF paper loading sequence and the operation of each mechanism.

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EPSON Stylus C60 Revision A

Step 1 (ASF Home position) Step 2

When the PF motor pinion gear rotates CW direction (Right side view), the Change lever pu shes down the Clutch lever as right figure and the Clutch lock tooth is disengaged from the Clutch gear. As the result, the LD roller shaft dose not rotate at all because the drive of the PF motor is not transmitted. In this time, the ASF hopper is also pushed down by the ASF hopper release lever on the LD roller shaft, and the Paper return plate is set to avoid that papers a re slipped down from the paper set position.

This position is the ASF home position.

Hopper & Paper return plate condition

LD roller shaft

Paper return plate

Torsion spring 29.1

ASF frame

Gear rotation direction (Right side view)

Spur gear 10.8 (PF roller)

PF motor pini on gear (CW) → Spur gear 10.8 (PF roller) (CCW) Combination gear 18.28 (CW) → Spur gear 27.2 (CCW) Spur gear 25.6 (CW) → Change lever (CW) Combination gear 16.32 ( CCW) → Spur gear 35.2 (CW) * Above transmission pass = seen from the right side of

Change lever

LD roller

Clutch lever

Clutch lock tooth

Clutch

→

ASF hopper release lever

Hopper

Compression spring 2.50

Clutch gear

→

the printer

Hopper & Paper return plate condition

When a paper is loaded from the ASF unit, the Change lever moves to the front side of the printer with the CCW rotation (right side view) of the PF motor pinion gear and releases the Clutch lever.

Gear rotation direction (Right side view)

To Front side

Clutch lock tooth

As the result, the Clutch turns back to the engagement positio n by the tension force of the Tension spring 0.143. And, the Clutch gear is engaged with the Clutch lock tooth to transmit the drive of the PF motor as left figure. In this time, the Change lever is locked

Tension spring 0.143

→

PF motor pinion gear (CCW) → Spur gear 10.8 (PF roller) (CW) Combination gear 18.28 (CCW) →Spur gear 27.2 (CW) Spur gear 25.6 (CCW) → Change lever (CCW) Combination gear 16.32 (CW) → Spur gear 35.2 (CCW) * Above transmission pass = seen from the right side of

Clutch gear

→

the print

→

instantaneously by the protrusion on the backside of the CR unit to change over from the ASF home position detection function to the paper loading function surely.

Figure 2-8. ASF paper loading sequence (Step 1, 2)

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EPSON Stylus C60 Revision A

The PF motor pinion gear rotates CW direction (right side view), and the drive of the PF motor is transmitted to the LD roller shaft through the Clutch lock tooth and the Clutch gear. After the LD roller pushes down the Paper return plate into the ASF frame, the ASF hopper is released by the tension force of the Compression spring 2.50. And, a paper is picked up with the frictional force between the LD roller and the Pad hopper.

Step 3

Hopper & Paper return plate cond ition

ASF hopper release lever

Gear rotation direction (Right side view)

PF motor pinion gear (CW) → Spur gear 10.8 (PF roller) (CCW) Combination gear 18.28 (CW) → Spur gear 27.2 (CCW) Spur gear 25.6 (CW) → Change lever (CW) Combination gear 16.32 (CCW) → Spur gear 35.2 (CW) * Above transmission pass = seen from the right side of

LD roller shaft

→

Compression spring 2.50

ASF hopper release lever

→

the printer

Step 4

Hopper & Paper retur n plate condition

ASF frame

Paper return

plate

While the LD roller rotates CW direction (right si de view) continuously, the top of a paper is loaded to the PF roller. In this rotation, the ASF hopper returns to the open position and the Paper

Gear rotation direction (Right side view)

return plate is released from the LD roller. In this time, this plate returns papers to the stand-by position in ASF unit for next paper load ing operation. Then, when the rolling LD roller & the Clutch come at the above “Step1” positi on, the Clutch lever is locked with the Change lever again. In this time, the drive of the

→

PF motor pinion gear (CW) → Spur gear 10.8 (PF roller) (CCW) Combination gear 18. 28 (CW) → Spur gear 27.2 (CCW) Spur gear 25.6 (CW) → Change lever (CW) Combination gear 16.32 (CCW) → Spur gear 35.2 (CW) * Above transmission pass = seen from the right side of

→

the printer

PF motor is interrupte d and the drive is transmitted only

→

to the PF roller side for the paper feeding sequence.

Figure 2-9. ASF paper loading sequence (Step 3, 4)

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EPSON Stylus C60 Revision A

2.1.4.2 Paper Feeding Mechanism

The Paper feeding mechanism consists of PF motor, PF roller, Paper eject roller, Paper end sensor (HP/PE sensor) etc. The Paper feeding mechanism feeds a paper loaded from ASF unit by using pairs of rollers.

1. One pair is the PF roller and the Paper guide roller which is assembled in the Paper guide upper/left. The drive of the PF motor is transmitted to the Paper guide roller through the PF roller.

2. Another pair is the Paper eject roller and the Star wheel which is assembled on the Front frame. The drive of the PF motor is trans mitted to the Star whe el through the Paper eject roller.

Left side view

Spur gear 60 (PF roller)

Paper guide roller Star wheel

Spur gear 60 (Paper eject roll er )

Following figure shows you the transmission path for the PF roller & the Paper guide roller and the Paper eject roller & the Star wheel.

The top of a paper is loaded to the PF roller from the ASF unit in the paper loading sequence. And then, when the PF motor pinion gear rotates CCW direction (left side view), a paper is fed by the PF roller & the Paper guide roller and the Paper eject ro ller & the Star wheel in the printing operation & the paper feed sequence.

PF roller

PF motor

Paper eject roll er

PF motor pinion gear

Transmission path (Left s ide v iew) :

PF motor pinion gear (CCW) → Spur gear 60 (PF roller /Paper eject roller) (CW)

Figure 2-10. Paper feeding mechanism

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2.1.5 Ink System Mechanism

The Ink system mechanism consists of Pump mechanism with Carriage lock mechanism and Capping mechanism with Wiper mechanism. Following table lis ts the function for each mechanism.

Table 2-4. Function for each mechanism

Mechanism Function

Capping mechanism *

Wiper mechanism

Pump mechanism

Carriage lock mechanism

* Like the previous printers (Stylus COLOR 480/580), this printer adopts the

valveless cap system. The air valve system used for the previous printer (Stylus COLOR 740) have two functions by the CR position in the capping condition as follows.

1) Valve closing condition (CL position) By closing the air valve, the ink is forcibly absorbed from the ink cartridge or

the ink cavity by the Pump unit and is ejected to the Waste drain ink pad while the CR unit is in the CL position.

This is to cover the surface of the Printhead with the cap in order to

This is to remove the foreign material and unnecessary ink on the nozzle plate of the Prin th ead.

This is to eject the ink fro m the in k cartridge, the ink cavity and the cap to the Waste drain ink pad.

This is to lock the CR unit with the Change lever while the CR unit is at the home position.

prevent the nozzle from increasing viscosity.

2.1.5.1 Capping Mechanism

The Capping mechanism covers the Printhead with the Cap to prevent the nozzle from increasing viscosity when the printer is in stand-by state or when the printer is off. Unlike the previous printers (Stylus COLOR 480/580), the Cap unit is newly designed for this printer as follows.

1. Non porous pad in Ca p Due to this, the cap is newly designed as follows.

Ink eject hole

For Stylus C60

Ink eject hole

Porous pad

For Stylus COLOR 480/580

2) Valve opening condition (Ink absorption position) By opening the Air valve, the negative pressure is decreased and only the ink

Figure 2-11. Cap mechanism

inside the Cap is ejected while the CR unit is in the further right side than the CL position. (the ink is not absorbed from the ink cartridge or the ink cavity.)

The following shows you the CR position for each condition easily.

Printing area

CR home position

CL position (valve closing condition)

Ink absorption position (valve opening condition)

The Cap unit used for the previous printers (Stylus COLOR 480/580) has the porous pad to keep the moisture in the Cap sequence

. The following points are modified to get the same effects on new Cap unit

and prevent that the air bubbles occur in CL

without the porous pad.

*1 : The diameter of the ink eject hole is smaller than that of Stylus COLOR 480 But, on the valveless cap system, the above 2) operation is done outside the capping position. The CR unit moves outside the CR home position and the pump absorbs the ink inside the Cap.

/580.

*2 : The cap is modified so that the ink flows with air bub bles to the ink eject h ole

in the ink absorption sequence more easily.

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2. Wiper with the Cap uni t The wiping operation is controlled by the CR unit movement. This operation is usually performed with every CL sequence which is to absorb the ink fro m the ink cartridge, the ink cavity by the Pump unit. Following figure shows you the mechanism for the wiping operation.

When the CR unit is in the home position, the hook of the Slider lock lever is not latched to the dent of the Cap frame. In this time, the protrusion of the Cap slider does not reach the rightmost position of the Cap frame.

When the CR unit moves to the left side from the wiper setting position, the Cap unit is pulled back by the tension force of the

0.523

Extension spring

In this time, the Cap unit is automatically set to the wiping position because the hook on the Slider lock lever is latched to dent of the Cap frame. And, the wiping operation is performed according to the CR unit movement.

Step 1

Protrusion

Not latched

Capping position (CR home position)

Step 3

Protrusion of the CR unit

Latched

Wiping position

Step 2

Latched

Wiper setting position

Step 4

Released

Released position (Bottom position)

The CR unit moves to the wiper setting position on the right mos t position of the Cap frame with keeping the cap covered. In this time, the hook of the Slider lock lever is latched to the dent of the Cap frame.

When the wiping operation is finished and the CR unit m oves further to the left side, the hook of the CR unit hits to the Slider lock lever. In this time, the Slider lock lever is released and the Cap slider returns to the bottom position completely. (The broken line is the position of the CR unit & the Slider lock lever just before being released.)

Figure 2-12. Wiper mechanism

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EPSON Stylus C60 Revision A

2.1.5.2 Pump unit mechanism

The PF motor also controls the Pump unit mechanism (including the Change lever) as well as the Paper loading/feeding mechanism. The drive of the PF motor is always transmitted to the Pump unit. (And also, its drive is transmitted to the LD roller through the Clutch mechanism & the Change lever.)

On this printer, the Pump unit mechanism including the Change lever plays a major role expecting the ink eject operation. And, these operations control depending on the PF motor rotational direction as the following table below.

Table 2-5. PF motor rotational direction & Ink system mechanism

Directions (*1) Functions

Clockwise

Counterclockwise

(*1): The PF motor rotational direction = seen from the left side of the printer.

Spur gear 60 (PF roller)

• Absorbs the ink by the Pump unit

• Release the Change lever from the Clutch mechanism

• Non operation

Left side view Right side view

Spur gear 60 (Paper eject roller)

1. Ink eject operation (usual operation) The ink is absorbed from the ink cartridge, the ink cavity and is ejected to the Waste drain ink pad from the cap when the ink tube is pressed by a roller in the Pump unit.

Following figure shows you the overview of the Pump unit mechanism operation

Cap unit side

Waste drain Ink pad side

(*1): The PF motor rotational direction = seen from the right side of the printer.

Figure 2-13. Pump mechanism

Pump unit

Cap unit

Change Lever

Spur Gear 35.2

PF roller

Combination Gear 16.32

PF motor pinion gear

Transmission Path :

Combination

Gear 18.28

Spur Gear 25.6

Spur Gear 27.2

(Pump Unit Gear)

PF motor pinion gear (CCW) → Spur gear 60 (PF roller & Paper eject roller) (CW)→ Spur gear 10.8 (CCW) → Combination gear 18.28 (CW) → Spur gear 27.2 (Pump unit gear) (CCW) ( * Above transmission pass = seen from the right side of the printer)

Figure 2-14. PF motor drive transmission path to the Pump unit

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EPSON Stylus C60 Revision A

2. Carriage lock operation by the Change lever Unlike the previous printer (Stylus COLOR 680), this printer does not have the Carriage lock lever with the Wiper. Instead of the Carriage lock lever, the Change lever is set to the front side of the printer while the CR unit is in the CR home position. (As for the detailed mechanism for setting the Change lever, refer to Figure 2-8 Step 2)

2.1.6 Ink Sequence



Initial ink charge After the printer is purchased and the power is turned on for the first time, the printer must perform the initial ink charge to charge the ink inside the ink cavity. When the initial ink charge is completed properly, the printer releases the flag inside the EEPROM. The Stylus C60 takes 80 seconds to complete the initial ink charge sequence and consumes about 1/4 of the brand-new black ink cartridge & about 1/8 of the brand-new color in k cartridge. If the power is turned off durin g the initial ink charge, the CL1' will be performed at next power on timing.



Manual Cleaning The Stylus C60 provides four types of manual cleaning to clean air bubbles, clogged ink with viscosity or foreign substances. The following manual CL can be performed by the control panel operation, the printer driver utility and the Adjustment program.



CL1

- Ink absorption Black Ink: 0.155g, Color Ink: 0.155g

- Wiping operation Wipes the nozzle plate by the rubber part on the Cap unit.

- Flashing operation Prevents color from mixing, and stabilizes ink surface inside the nozzle.



CL1'

- Ink absorption Black Ink: 0.80g, Color Ink: 0.80g

- Wiping operation Wipes the nozzle plate by the rubber part on the Cap unit.

- Flashing operation Prevents color from mixing and stabilizes ink surface inside the nozzle.

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EPSON Stylus C60 Revision A



CL1"

- Ink absorption Black Ink: 1.55g, Color Ink: 1.55g

- Wiping operation Wipes the nozzle plate by the rubber part on the Cap unit.

- Flashing operation Prevents color from mixing and stabilizes ink surface inside the nozzle.



CL2

- Ink absorption Black Ink: 0.55g, Color Ink: 0.55g

- Wiping operation Wipes the nozzle plate by the rubber part on the Cap unit.

- Flashing operation Prevents color from mixing and stabilizes ink surface inside the nozzle.

In case that the manual CL and the nozzle check pattern printing is alternately performed, the CL order is CL1 → CL1' → CL2. (In case that the printer keeps the power off condition more than the specific period , the CL orde r is CL2 → CL1 → CL1' → CL2 → CL1'' → CL2 → CL1 → CL1'.) Like the previous printers (Stylus COLOR 480/580), CL1 is selected automatically and performed In case that any printing operation is not performed between each manual CL. Additionally, if the manual CL is performed with over 5 pages printing cycle, CL1 is always selected and performed. Additionally, if either black or color I/C is ink low or end condition, any manual cleaning is prohibited and it is displayed on the LED indicators.

cleaning period is over the specific period, the printer performs the timer cleaning automatically. In this time, the printer stores the timer command in 02 <H>, 03 <H>, 04 <H> and 05 <H> of the EEPROM. Maximum 0.5 ml of the ink is consumed in the timer cleaning. (0.25 ml of each black and color ink is consumed.)



Flashing This printer performs the following two kinds of the Flashing for the following purpose.



Periodical Flashing This is due to avoid the increment of both ink’s viscosity in the printhead nozzle during the continuous pr inting and the sp ecific small amoun t of the ink is ejected in the cap based on the periodical flashing timer.



Periodical large amount Flashi ng This is due to avoid the increment of black ink’s viscosity in the printhead nozzle during the continuous pr inting and large amount of the ink is ejected in the cap based on the periodical large mount flashing timer.



Timer Cleaning Like the previous printers (Stylus COLOR 480/580), this printer dose not have Timer IC and 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 to the printer before printing. The timer command is generated based on the PC's timer and it consist s of y ear, month date, hour, minute and second. As soon as the printer receives the timer command from the printer driver, the printer stores its command in address 04 <H> and 05 <H> in the EEPROM. Then, it is compared with the latest CL time which is stored in address 02 <H> and 03 <H> in the EEPROM. And, In case that the timer

Operating Principles Overview 36

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EPSON Stylus C60 Revision A

2.2 Electrical Circuit Operating Principles

The electric circuit of the Stylus C60 consists of the following boards.



Main board: C418 MAIN Board



Power supply board: C417 PSB/PSE

Note: CPU, ASIC and PROM is integrated as one chip (IC1) on the MAIN board. This section provides operating principles of C418 MAIN Board and C417 PSB/PSE Board. Refer to Figure 2-15 for the major connection of the each boards and their roles .

Printer Mechanism

C418 MAIN Board

CR Motor

PF Motor

Head Driver Board

HP/PE Sensor

2.2.1 C417 PSB/PSE board

The power supply boards of the Stylus C60 use a RCC (Ringing Chalk Converter) circuit, which generates +42VDC for drive line and +5VDC for logic line to drive the printer. The application of the output voltage is described below.

Table 2-6. Application of the DC Voltages

Voltage Application

• Motors (CR Motor, PF Motor)

+42VDC

+5VDC

AC voltage input from AC inlet first goes through filter circuit that removes high frequency components and is then converted to DC voltage via the rectifier circuit and the smoothing circuit. DC voltage is then lead to the switching circuit and FET Q1 preforms the switching operation. By the switching operation of the primary circuit, +42VDC is generated and stabilized at the secondary circuit. This +42VDC generated by the secondary circuit is converted to +5VDC by the chopping regulator IC of the secondary circuit.

• Printhead common voltage

• Printhead nozzle selector 42V drive voltage

• C418 Main control circuit logic

•Sensor

+5VDC

C417 PSB/PSE Board

+42VDC

Figure 2-15. Electric Circuit

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EPSON Stylus C60 Revision A

1. Regardless of the state of the power switch (On or OFF), the voltage is always

PSC Signal from Main board

+42VDC Line Drop Limitation

PC1

Photo Coupler

D51

+5VDC+42VDC

IC51

+5V Regulator

R92,R93,Q91,ZD51

+42VDC Line Constant Control

C51

Smoothing Circuit

ZD53

+5VDC Line Over Voltage Limitation

ZD52,87

+42VDC Line Over Voltage Limitation

ZD91

C84,Q84

Power Drop Delay Circuit

TRANS(T1)

AC Input

Smoothing Circuit

Over Current Protection

F1,TH1

Q1C11

Filter Circuit

L1,C1

Main Switching Circuit

Q2,Q31,Q32,Q33

Full Wave Rectifier circuit

DB1

Abnormally Feed back circuit

Figure 2-16. C417 PSB/PSE board block diagram

The C417 PSB/PSE board has the various control circuits to stop voltage output if a malfunction occurs on the power supply board or the main board while the printer mechanism is on duty. Following explains each control and protection circuit.

applied to the primary side of the power supply board from the moment or at the state that AC-plug is plugged in. At this time, F1 plays a role of preventing AC100V from coming into the F1. L1 also prevents high harmonic wave noise generated in the RC circuit filter which consists of C1 from going out, and eliminates the noise from outside here.

2. The AC is full-wave rectified by the diode bridge DB1, and converted to x

AC in voltage by the smoothing electrolytic capacitor C11.

3. The pressured up direct current turns Q1 on through the starting resistor R31 and starts the primary side of the circuit.

4. When the primary side is On, the energy (current) led by the electromagnetic induction through the trans (T1) does not flow to the secondary side since the diode (D51) on the secondary side is installed in the opposite direction.

5. When the energy which is charged in the trans is reaching the saturated state, the voltage which makes Q1 on becomes weak gradually. At the point that this voltage drops at the certain voltage, C13 absorbs the current in the opposite direction and Q1 is quickly shut off by the resulting sharp drop.

6. When the primary side is turned off, the energy charged in the T1 is opened according to the diode (D51) direction which is installed on the secondary side. Basically, 42 V DC is output by these circuit operations and the number of T1 spiral coil.

7. +5VDC is generated by pressured down this +42VDC as power supply. IC51 pressures down the +42VDC and generates precise +5VDC by chopping off the output, forming the standard santooth wave form by the outer RC integration circuit.

The C417 PSB/PSE board has the various control circuits to stop voltage output if a malfunction occurs on the power supply board or the main board or while the printer mechanism is on duty. Following explains each control and protection circuit.



+42V line constant voltage control circuit : The output voltage level of the +42V line is monitored by R92, R93, Q91 and ZD51. When +42V line reaches about +42.8V, PC1 starts the operation via Q91. Consequently, FET Q1 switching operation is controlled by this circuit to stabilize the +42V line.

Operating Principles Electrical Circuit Operating Principles 38

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EPSON Stylus C60 Revision A



+42Vline over voltage protection circuit : The output voltage line is monitored by ZD52 and ZD87. If the output voltage level of +42VDC line exceeds +48V, this circuit stops the operation of the switching FET Q1 via PC1,Q82 and Q83, and prevents high voltage from being applied to the secondary side.



+42VDC line drop limitation circuit : PC1 drives with +36V and ZD90 is monitoring the voltage supplied to PC1. If the supplied voltage level exceeds 37V, this circuit shuts down the +42V line temporarily and prevents the over voltage from being applied to the PC1.



+42Vline over current protection circuit : The output current level is monitored by the F51. When the abnormal current is detected by F51, F51 blows and cuts off the +42V line output to the Main board.



+5V line constant voltage control circuit/+5V line over current protection circuit : The output voltage level of the +5VDC line is monitored by t he regulat or IC51 . If abnormal voltage is detected, the information is fed back to the internal comparator.



+5V line over voltage protection circuit : The output voltage level of the +5VDC line is monitored by ZD53. If the output voltage level of +5DC line exceeds +7V, this circuit stops the operation o f the switching FET Q1 via PC1,Q82 and Q83, and prevents high voltage from being applied to the secondary side.

Operating Principles Electrical Circuit Operating Principles 39

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EPSON Stylus C60 Revision A



2.2.2 C418 MAIN Board

The logic circuit of the C418 Main board is composed of the follows;



Logic line (ASIC, DRAM, P-ROM, EEPROM and so no)



Motor control/drive circuit (CR motor/PF motor)



Head control/drive circuit



Interface control circuit (Parallel I/F, USB I/F)



Sensor circuit



Reset circuit



EEPROM circuit



Switch circuit



LED circuit

Unlike the previous printer (Stylus COLOR 680), the panel board is eliminated and the switches/LED lights are mounted on the Main board.



The transceiver with USB I/F is built in the CPU.



D-RAM 4Mbit D-RAM is mounted on the Main board.



One ASIC controls the all functions on the Main board. See figure 2-17. for the C4 18 Main board block diagram.

D-RAM 4M

(IC4)

Address

Data

P-ROM

(SOJ) 8M

(IC5)

Reset IC

(IC2)

EEPROM

(IC3)

The printer mechanism is controlled by the above circuits. Following explains the major characteristics of this Main board.



Timer IC & Lithium battery are not mounted Unlike the previous printer (Stylus COLOR 680), the Timer IC and the Lithium battery are not mounted on the Main board. So, this printer performs the Power-on cleaning or Timer cleaning based on the time comman d which is s ent fr om th e PC through the printer driver. As for the details, refer to 2.1.6



Use of the 3.3V chips in the logic circuit The 3.3V regulator (IC8) on the C418 Main board generates 3.3VDC by pressuring down the 5VDC to drive several chips for the logic circuit.

Table 2-7. 3.3VDC drive chips & 5VDC drive chips

5VDC 3.3VDC

Motor driver (IC10/11) Reset IC (IC2) EEPROM (IC3) Parallel controller (IC7)

ASIC (IC1) D-RAM (IC4) P-ROM (IC5) Parallel controller (IC7) Common driver (IC19)

E01A21CB

CN3 USB

CPU (IC1)

CR2

Motor Driver

(IC10)

Motor Driver

(IC11)

Common

Driver (IC19)

Parallel I/F IC

(IC7)

Q2&Q3

Figure 2-17. Block diagram for the C418 Main board

CN4

CN7

CN12

CN9

CN8

CN1 Parallel I/F

HP/PE Sensor

PF Motor

CR Motor

Head

Operating Principles Electrical Circuit Operating Principles 40

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EPSON Stylus C60 Revision A

2.2.2.1 Main Elements

Table 2-8 shows the function of the each main elements on C418 Main board.

Table 2-8. Main elements

IC Location Function

CPU E01A21CB

DRAM IC4 Bus= 16 bit, 4Mbit DRAM

EEPROM IC3

Reset IC BN6150F-E2

Common Driver E09A29LA

Motor Driver (LB1946-K)

Parallel I/F IC 74LVX1612B4

IC1

IC2

IC19

IC10/IC11 PF/CR motor drive IC

IC7 IEEE1284 parallel I/F transceiver IC.

CPU mounted on the MAIN board is driven by clock frequency 48 MHz, 24MHz and controls the printer.

1kbit EEPROM

• Default value setting

• Parameter backup Reset IC

• For +5V; reset when +4.2V is detected

• For +42V, reset when +36.3 V is detected Head drive control HIC

• Generates head common voltage.

Operating Principles Electrical Circuit Operating Principles 41

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EPSON Stylus C60 Revision A

2.2.2.2 Printhead Driver Circuit

The printhead driver circuit consists of the following two components:



Head common driver circuit (Common driver IC19 & Wave amplifier transistor Q2, Q3)



Nozzle selector IC on the printhead driver.

The common driver (IC19) generates a basic drive waveform according to the output signals from CPU (IC1). The basic drive waveform is amplified by the transistors Q2 and Q3 (the amplified one is called drive waveform.) and then trans ferred to the n ozzle selector IC on the printhead driver board. Print data is converted to serial data by the CPU and then sent to the nozzle selector IC on the printhead driver board. Based on the serial data, the nozzle selector IC determines the nozzles to be actuated. The selected nozzles are driven by the drive waveforms amplified by the transistor Q2 and Q3. See Refer to Figure 2-18 for the printhead driver circuit block diagram.



Head common driver circuit The basic drive waveform is generated in the common driver (IC19) based on the following 12 signal lines output from t he CPU (IC1); A0-A4, CLK1, CLK2, FLOOR, RST, DATA, DCLK, and E. By the DATA signal output from the CPU, the original data for the basic drive waveform is written in the memory in the common driver (IC19). The addresses for the written data are determined by A0-A4 signals. Then, the necessary data is selected from the address and appropriate basic drive waveform is generated. Generated basic drive waveform is transferred to nozzle selector IC on the printhead driver board through the transistor Q2 and Q3 and applied to the nozzle PZT specified by nozzle selector IC.

CPU

(IC1)

HWA0 HWA1 HWA2 HWA3

HWA4 HWCLK1 HWCLK2

HWFLR HWRST

HWSDATA

HWSCLK

HWSLAT

HSOCLK

HCH

HSO1 ~ HSO6

HSOCMD

HLAT

HNCHG

C-P32 C-P13 C-P30 C-P34 C-P12 C-P40

132 133 134 135 136 127 126 125 124 130 129 128 13 12 21 24 19 20 8 11 10 18 9 6

26 25 24 23 22

3 4 5

6 27 28

Common

Driver(IC19)

AO A1 A2 A3 A4 CLK1 CLK2 FLOOR RST DATA DCLK E

VCC45

NPNB

PNPB

+4.2V

15 14

+3.3V

CN9

CN8

15 13

9 2

2 4 8

6 10 11 12 14 15 13

COM COM

SCK CH SI1 ~ SI6 SP

COM VHV LAT NCHG CSCK COI CRST CSDA CVDD THM

Nozzle

Selector IC

Head Drive Pulse



Nozzle selector circuit Printing data is allocated to the six rows (the num ber o f the head nozzle rows) and converted into serial data by the CPU (IC1). Then th e converted data is transferr ed to the nozzle selector IC through the six signals lines (HS01 to HS06). Data

Figure 2-18. Printhead driver circuit

transmission from the CPU to the nozzle selector synchronizes with the LAT signal and SCK clock signal. Based on the transmitted data, appropriate nozzle is selected and the PZTs of the selected nozzle are driven by the drive waveform output from the head common driver.

Operating Principles Electrical Circuit Operating Principles 42

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2.2.2.3 PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit

The motor driver IC (IC10) on the Main board drives PF motor. This product uses 4phase 96-poles hybrid type stepping motor and performs constant current bi-polar drive.

CPU (IC1) transmits LB1946 micro step drive form and the current value data on each phase to motor driver IC (IC10) from port 139. Based on this signal, motor driver IC determines the phase mode.

Motor driver IC generates motor driver waveform based on these input signals and controls the motor. And also, motor driver IC monitors to prevent the fluctuations in the actual current value to motor driver IC. If motor driver IC detects the fluctuations in the actual current value, it amends the current value internally. In case that the printer dose not receive any data for 5 minutes, CPU set the motor drive current to 0 [A] and the motor drive is turned off to save the power consumption.

PF-SCLK

PF-DATA

+5V

CPU

(IC1)

PF-LAT

C-P47

C-P25

138 139 140 3

144

23 22 21 27 16 20

24 25 18

LB1946

(IC10)

CLK DATA SET VREF1 VREF2 ST

MD CR1 CR2 E1 E2

OUTA

OUTA-

OUTB

OUTB-

VBB

VCC

7 6 9 8

1 28

CN7

1 3 2 4

+42v

+5V

2.2.2.4 CR Motor Driver Circuit

The motor driver IC (IC11) on the Main board drives CR motor. This product uses 4phase 200-poles hybrid type stepping motor and performs constant current bi-polar drive.

CPU (IC1) transmits LB1946 micro step drive for m and the current value date on each phase to motor driver IC (IC11) from port 142. Based on this signal, motor driver IC determines the phase mode.

Motor driver IC generates motor driver waveform based on these input signals and controls the motor. And also, motor driver IC monitors to prevent the fluctuations in the actual current value to motor driver IC. If motor driver IC detects the fluctuations in the actual current value, it amends the current value internally. In case that the printer dose not receive any data for 5 minutes, CPU set the motor d rive current to 0 [A] and the motor drive is turned off to save the power consumption.

CR-SCLK

CR-DATA

+5V

CPU

(IC1)

CR-LAT

C-P46

C-P25

141 142 143 4

144

23 22 21 27 16 20

24 25 18

LB1946

(IC11)

CLK DATA SET VREF1 VREF2 ST

MD CR1 CR2 E1 E2

OUTA

OUTA-

OUTB

OUTB-

VBB

VCC

CN12

7 6 9 8

1 28

1 3 2 4

+42v

+5V

Figure 2-20. CR motor driver circuit block diagram

Figure 2-19. PF motor driver circuit block diagram

Operating Principles Electrical Circuit Operating Principles 43

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EPSON Stylus C60 Revision A

2.2.2.5 Reset Circuit

Reset IC (IC2) on the MAIN board monitors the two voltage: +5V for the logic line and +42V for the drive line. Reset IC outputs the reset signal to CPU (IC1) in the following case.

1. When the printer power is turned on and reset IC detects 4.2V on +5V line/36.3V on +42V line, reset signal is output to perform the initialize operation correctly.

2. When the printer power is turned off and reset IC detects 4.2V on +5V line/36.3V on +42V line, reset signal is output to stop the printer operation safely.

3. When reset IC detects 4.2V on +5V line/36.3V on +42V line with fail during the printer operation, reset signal is output to stop the printer operation safely.

Unlike the previous products, the timer IC is not built in the reset IC and the Lithium battery is not mounted on this MAIN board either.

+42V

BH6150F-E2

NC1

NC2

GND

IC2

MEWS

VCC OUT1 OUT2

+5V

IC1

E01A24CA

8 7 6 5

37 36

MRES

NMI RESET

2.2.2.6 EEPROM Control Circuit

When the printer power is turned off, the following information is stored in EEPROM (IC3) which is nonvolatile memory. And, when the printer power is on, CPU (IC1) reads the information from EEPROM.

Information stored in EEPROM is listed below.



Various ink counter (I/C consumption counter, waste pad counter, etc.)



Mechanical setting value (Head ID, Bi-D adjustment, USB ID, etc.)

Refer to 7.1.2 that provides the detailed information stored in EEPROM.

42 41 40 39

E01A24CA

(IC1)

C-P20 C-P21 C-P22 C-P23

+5V

EEPROM-93C

(IC3)

VCC

ORG

GND

1 2 3 4

Figure 2-22. EEPROM circuit diagram

EEPROM is connected to CPU with 4 lines and each line has the following function.



Figure 2-21. Reset circuit block diagram

Main line for reset IC has the following function.



OUT1: Interrupt signal



OUT2: Reset line



IN: +42V line monitoring line



VCC: +5V line monitoring line

CS: Chip selection signal



CK: Data synchronism clock pulse



DI: Data writing line (serial data) at power off.



DO: Data reading line (serial data) at power on.

Operating Principles Electrical Circuit Operating Principles 44

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EPSON Stylus C60 Revision A

2.2.2.7 Sensor Circuit

CPU (IC1) on the Main board monitors the status of the printer by several sensors. However, unlike the previous product, ASF unit on this printer does not have ASF sensor. Instead of ASF sensor, Change lever and the Clutch mechanism is used to detect ASF home position. (As for the ASF home position detection, refer to 2.1.4.)



HP/PE sensor

HP/PE sensor uses photo interrupter method and always monitors the two status during the printer is in the power on status. The photo interrupt component and two detection levers consists of this sensor.



CR home position The CR home position is detected on the right edge of the CR shaft with the HP/PE sensor during the variety sequence. In case that the CR home position is detected, this sensor outputs HIGH signal to the CPU (IC1). If CR home position is not detected in the detection position correctly, this sensor outputs LOW signal to CPU and the printer indicates the error (As for the error indication, refer to 1.4.3.)



Paper top & end position When the Paper is in the paper path during the paper loading/feeding sequence, HP/PE sensor outputs the HIGH signal. When the Paper is not in the paper path, this sensor outputs the LOW signal and the printer indicates the error (As for the error indication, refer to 1.4.3.)



Thermistor (THM)

The thermistor is directly mounted on the printhead driver board. It monitors the temperature around the printhead and determines the proper head drive voltage to uniform the weight of the ink fired from printhead. This information is fed back to the CPU analog port. When the temperature rises, the head driv e circuit lowers the drive voltage: When the temperature lowers, the head drive circuit rises the drive voltage.

IC1

E01A24CA

C-P15

C-P40

+5V

HPPV

HP/PE Sensor

CN4

CN8

Head FFC

GND

HPPE

GND

THM

Figure 2-23. Sensor circuit diagram

The block diagram for the sensor circuit is shown below.

Operating Principles Electrical Circuit Operating Principles 45

Page 51

TROUBLESHOOTING

CHAPTER

Page 52

EPSON Stylus C60 Revision A

3.1 Overview

This chapter describes how to identify troubles in two levels: unit level repair and component level repair. Refer to the flowchart in this chapter to identify the defective unit and perform component level repair if necessary. This chapter also explains motor coil resistance, sensor specification and error indication.

START

Unit level troubleshooting

Unit repair

Assemble & Adjustment

Table 3-1. Motor, coil resistance

Motor Location Check point Resistance

CR motor CN12

PF motor CN7

Pin 1 and 3 Pin 2 and 4

7.8 Ohms (at 25

6.0 Ohms ±10%

(at 25

10%

C/ phase)

Table 3-2. Sensor check point

Sensor name Check point Signal level Switch mode

Off

• Out of CR home position

• No paper

• Within CR home position

• Detect the paper

HP/PE Sensor CN4/Pin 1 and 2

Thermistor

(THM)

TH1 (on the Head

driver board)

Less than 0.7V

More than 2.4V

Analog signal 10 K (at 25

END

Figure 3-1. Troubleshooting flowchart

Troubleshooting Overview 47

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EPSON Stylus C60 Revision A

3.2 Troubleshooting with LED Error Indicat ions and Status Monitor 3 Message

This section describes the LED indication, the STM3 message and the error detection condition when the printer detects an error condition in

the power on sequence, the paper loading/feeding sequence, the ink absorption sequence,

Indicators

Printer status

Power Error

Fatal error Off On

each sequence/operation (such as

Table 3-3. Error indication and status monitor 3

Status monitor 3 message Condition for error detection

This error is detected when ;

1) the CR unit cannot move correctly by the external force in each sequence/operat ion

2) the PF motor cannot rotate correctly while the PF motor operates.

This error is detected when the protection

Maintenance request Alt Blink Alt Blink

counter A stored into EEPROM reaches the limit (32915 points).

Troubleshooting Troubleshooting with LED Error Indications and Status Monitor 3 Message 48

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EPSON Stylus C60 Revision A

Table 3-3. Error indication and status monitor 3

Printer status

Indicators

Power Error

Paper jam error On On

Paper out error On On

Status monitor 3 message Condition for error detection

This error is detected when ;

1) the end of a paper is not correctly detected with the HP/P E sensor in th e paper feeding sequence.

2) the HP/PE sensor cannot detect that the CR unit moves outside the home position in the CR home position detection sequence.

This error is detected when the top o f a pa per is not detected with the HP/PE sensor in the pape r loading sequence.

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EPSON Stylus C60 Revision A

Table 3-3. Error indication and status monitor 3

Printer status

No ink cartridge

(Black and Color)

Ink end error On-> Blink

Power Error

On On

Indicators

[Bk I/C]

On -> Blink

[Col I/C]

On -> Blink2

Status monitor 3 message Condition for error detection

This error is detected when ;

1) the ink cartridge is not installed to the CR unit.

2) the ink cartridge is defective.

This error is detected when ;

1) the ink consumption amount reaches 100%

2) the ink cartridge is defective.

[Note] The slight amount of the ink is remaining in the I/C even if the ink end error is detected. This is to prevent the Printhead nozzle from the printing operation without firing the ink.

" A -> B " : A is a indicator condition when the CR unit is in the home position. B is a indicator condition in the ink replacement sequence. Blink : On 0.5sec + Off 0.5sec Blink2 : On 0.2sec + Off 0.2sec + On 0.2sec + Off 0.4s ec

Troubleshooting Troubleshooting with LED Error Indications and Status Monitor 3 Message 50

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Stylus Photo 720 Revision B

Table 3-3. Error indication and status monitor 3

Printer status

Power Error

Ink low condition On-> Blink

Indicators

[Bk I/C]

Blink -> Blink

[Col I/C]

Blink -> Blink2

Status monitor 3 message Condition for error detection

This error is detected when the ink consumption amount reaches about 90%.

[Note] When the ink low condition is detected, Error

reset LED is blinking. The printer continue to keep this LED status even if brand new ink cartridge is installed at the I/C replacement position.

Then, when the CR unit returns to the home position, this LED status is reset (LED is off).

Note : Even if this error is indicated on the STM3, you can continue the printing until I/C becomes ink end condition. However, the head cleaning operation cannot be done so that the remaining ink is low condition.

Communication err or Off Off

This error is detected when the printer cannot communicate with the PC correctly.

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EPSON Stylus C60 Revision A

Table 3-3. Error indication and status monitor 3

Printer status

Error before the ink

replacement CL

Error before the

initial ink charge

Indicators

Power Error

On On

Status monitor 3 message Condition for error detection

This error is detected when the 2nd or more ink cartridge for the ink replacement CL is defective.

This error is detected when the 1st ink ca rtridge for the initial ink charge is defective.

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EPSON Stylus C60 Revision A

3.3 Unit Level Troubleshooting

You can identify the troubles by using the checklist in this section after confirming the LED indication on the printer. If you connect the printer to your PC and see an error message on the STM3, you can short the total repair time. And, when you find out the defective parts, replace them by referring the Chapter 4 “Disassembling”. Following tables describe the error condition (LED and STM3), possible cause and check point.

Table 3-4. Fatale error condition and possible cause

Error condition

Fatal error

LED indication

STM3 message

Power : Off

Error : On

General error

Occurrence

timing

Power on

CR position at the

power on timing

Outside HP

unit/part name

Holder sh aft unit The Paper return plate disturbs the rotation of the LD roller.

Paper guide upper/le ft The Paper guide upper/left comes off completely.

The following is the example of how to use the table. When the CR unit is out of the home position at the power on timing, the fatal error may be caused by the failure of the CR motor. Moreover, there are 3 pos sible causes on the CR motor failure.

[Note] When the individual part of the Paper eject roller, PF motor and the Ink system unit is defective, replace the Printer mechanism to new one basically. However, if the individual part is replaced to new one in the urgent case,

reassemble it carefully by referring to Chapter 4.

Defective

CR motor

PF motor

The CR motor connector cable comes off. The CR motor is defective. The CR motor connecto r cable is damaged.

The PF motor connector cable comes off. The PF motor is defective. The PF motor connector cable is damaged.

Possible cause Check table

Refer to Table 3-5

disassembly/

Pump unit The Compression spring 1.764 comes off.

Anywhere

Operation -

Main board The Main board is defective. Main frame The Main frame is deformed. Front frame The Front frame is bent up. Main frame The Main frame is deformed.

Troubleshooting Unit Level Troubleshooting 53

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EPSON Stylus C60 Revision A

Table 3-5. Check point for the fatal error according to each phenomenon

Occurrence

timing

CR position

Power on

Outside HP

Detailed phenomenon

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

When turning on the power, the CR unit collides to the Change lever located to the front si de of the printer.

Defective

unit/part name

CR motor

Holder shaft unit

PF motor

Pump unit

Check point Remedy

1. Check if the CR motor connector cable is connected to CN12 on the Main board.

2. Check if the coil resistance of the CR motor is about 7.8

ohm by using the tester. Refer to Table 3-1.

3. Check if the CR motor con nector cable is damaged.

1. Check if the Paper return plate disturbs the rotation of the LD roller.

LD roller

Paper return plate

1. Check if the PF mot or connector cable is connected to CN7 on the Main board.

2. Check if the coil resistance of the PF motor is about 6.0

ohm by using the tester. Refer to Table 3-1.

3. Check if the PF motor connector cable is damaged.

1. Check if the Compression s pr in g 1.764 comes off in the Change lever.

Change lever

1. Connect the CR motor connector cable to CN12 on the Main board.

2. Replace the CR motor with new one.

3. Replace the CR motor with new one.

1. Reassemble the ASF unit to the printer.

1. Connect the PF motor connector cable to CN7 on the Main board.

2. Replace the Printer mechanism with new one.

3. Replace the Printer mechanism with new one.

1. Replace the Printer mechanism with new one.

Comp. sprin g 1.764

When turning on the power, the CR unit collides to the Paper guide upper lo cated on the Lower housing.

1. Check if the Paper guide upper/left comes off from the Main frame.

Paper guide upper/

left

1. Reassemble the Paper guide upper/left to the Main frame.

Troubleshooting Unit Level Troubleshooting 54

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EPSON Stylus C60 Revision A

Table 3-5. Check point for the fatal error according to each phenomenon

Occurrence

timing

CR position

Power on

Anywhere

Operation

Error condition

Detailed phenomenon

When turning on the power, the CR unit collides to the right side of the Main frame.

The CR unit climbs over the Slider lock lever set to the wiping position and the CR unit collides to its lever.

LED indication

STM3 message

Occurrence

timing

Defective

unit/part name

Main frame

Front frame

1. Check if the CR home position is correctly detected with the HP/PE sensor.

1. Check if the Slider lock lever is correctly released by the CR movement.

Check point Remedy

Table 3-6. Paper jam error condition and possible cause

CR position at the

power on timing

Inside HP

Unit/Part name Possible cause Check table

The CR motor connector cable comes off.

CR motor

Holder sh aft unit The Paper return plate disturbs the rotation of the LD roller.

PF motor

The CR motor is defective. The CR motor connecto r cable is damaged.

The PF motor connector cable comes off. The PF motor is defective.

1. Replace the Printer mechanism with new one. * If the problem is not solved, replace the Main board with new one.

1. Replace the Printer mechanism with new one.

1. Replace the Front frame with new one.

The PF motor connector cable is damaged.

Refer to Table 3-7

The Torsion spring 0.22 for PE sensor lever comes off. The Torsion spring 0.22 for HP sensor lever comes off. The HP/PE sensor is defective. The HP/PE sensor cable comes off. The HP/PE sensor cable is damaged. The HP/PE sensor cable is not placed correctly.

Paper jam error

Power : On

Error : On

Paper jam

Power on

Pump unit The Compression spring 1.764 comes off.

ASF unit The Compression spring 29.1comes off.

Anywhere

LD roller unit

Troubleshooting Unit Level Troubleshooting 55

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EPSON Stylus C60 Revision A

Table 3-6. Paper jam error condition and possible cause

Error condition

Paper jam error

LED indication

STM3 message

Power : On

Error : On

Paper jam

Occurrence

timing

Operation

CR position at the

power on timing

Outside HP Hold er shaft u n it

Unit/Part name Possible cause Check table

ASF unit The Compression spring 29.1comes off.

Front frame

Holder sh aft unit The Torsion spring 0.22 for PE sensor lever comes off.

Paper eject roller unit

Paper guide upper/le ft The Paper guide upper/left comes off completely.

The Torsion spring 0.22 for HP sensor lever comes off. The HP/PE sensor cable is not placed correctly.

The Star wheel comes off. The Front frame is bent down.

Refer to Table 3-7

The Front frame is not assembled correctly.

The Paper eject roller shaft comes off. * The Spur gear 60 comes off.

Troubleshooting Unit Level Troubleshooting 56

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EPSON Stylus C60 Revision A

Table 3-7. Check point for the paper jam error according to each phenomenon

Occurrence

timing

CR position

Power on Inside HP

Detailed phenomenon

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

When turning on the power, the CR unit collides to the Change lever located to the front si de of the printer.

Defective

unit/part name

CR motor

Holder shaft unit

PF motor

Pump unit

Check point Remedy

1. Check if the CR motor con nector cable is connected to CN12 on the Main board.

2. Check if the coil resistance of the CR motor is about 7.8

ohm by using the tester. Refer to Table 3-1.

3. Check if the CR motor connector cable is damaged.

1. Check if the Paper return plate disturbs the rotation of the LD roller.

LD roller

Paper return plate

1. Check if the PF mot or connector cable is connected to CN7 on the Main board.

2. Check if the coil resistance of the PF motor is about 6.0

ohm by using the tester. Refer to Table 3-1.

3. Check if the PF mot or connector cable is damaged.

1. Check if the Compression spring 1.764 comes off in the Change lever.

Change lever

1. Connect the CR motor connector cable to CN12 on the Main board.

2. Replace the CR motor with new one.

3. Replace the CR motor with new one.

1. Reassemble the ASF unit to the printer.

1. Connect the PF motor connector cable to CN7 on the Main board.

2. Replace the Printer mechanism with new one.

3. Replace the Printer mechanism with new one.

1. Replace the Printer mechanism with new one.

Comp. sprin g 1.764

Troubleshooting Unit Level Troubleshooting 57

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EPSON Stylus C60 Revision A

Table 3-7. Check point for the paper jam error according to each phenomenon

Occurrence

timing

CR position

Power on

Anywhere

Operation

Outside HP

Detailed phenomenon

When turning on the power, the paper feeding sequence is performed without loading a paper in the paper loadin g sequence.

When turning on the power, the CR unit move to the home position correctly. But, the paper feeding sequence is performed without load ing a paper in the paper loading sequence.

Defective

unit/part name

ASF unit

Holder shaft unit

Holder shaft unit *

Check point Remedy

1. Check if the Paper return plate operates correctly in the paper loading sequen ce.

1. Check if the Torsion spring 0.22 comes off on the both HP sensor lever and PE sensor lever.

Torsion sprig 0.22

2. The HP/PE sensor is defective.

3. Check if the HP/PE sens or cable comes off.

4. Check if the HP/PE sensor cable is damaged.

5. Check if the HP/PE sensor cable is correctly placed on the

LD shaft holder.

1. Check if the Torsion spring 0.22 for the HP sensor lever comes off.

2. Check if the HP/PE sensor cable is correctly placed on the

LD shaft holder.

1. Reassemble the Tension spring 29.1 between the ASF frame and the Paper return plate.

Torsion spring 29.1

1. Set the Torsion spring 0.22 to the suitable position of the both levers.

2. Replace the Holder shaft unit with new one.

3. Replace the Holder shaft unit with new one.

4. Replace the Holder shaft unit with new one.

5. Replace the Holder shaft unit with new one.

1. Set the Torsion spring 0.22 to the suitable position of the HP sensor lever.

2. .Place the HP/ PE sensor cable correctly.

Troubleshooting Unit Level Troubleshooting 58

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EPSON Stylus C60 Revision A

Table 3-7. Check point for the paper jam error according to each phenomenon

Occurrence

timing

CR position

Operation

Detailed phenomenon

When a top of a paper at the correct timing during the paper load ing sequence, the paper is ejected immediately without setting the paper setting position for printing. But, in this time, next paper is loaded to the PE detection lever.

The top of a paper does not go through between the Paper eject roller and the Star wheel.

A paper is loaded from the ASF unit, and it is fed correctly. But, the pape r fee din g sequence is performed without loading a paper from the next paper loading sequence.

Defective

unit/part name

ASF unit

Front frame **

Paper eject roller

unit **

Holder shaft unit

Check point Remedy

1. Check if the Paper return plate operates correctly in the paper loading sequen ce.

1. Check if the Star whee l comes off.

2. Check if the Front frame is bent down.

3. Check if the Front frame is correctly assembled.

1. Check if the Paper eject rol ler shaft is correctly assembled.

2. Check if the Spur gear 60 comes off.

Spur gear 60

1. Check if the Torsion spring 0.22 for the PE sensor lever comes off.

1. Check if the Paper guide upper/left is correctly assembled.

1. Reassemble the Tension spring 29.1 between the ASF frame and the Paper return plate.

Torsion spring 29.1

1. Reassemble the Star wheel correctly.

2. Replace the Front frame with new one.

3. Reassemble the Front frame correctly.

1. Reassemble the Paper eject roller shaft to the Lower housing correctly.

2. Replace the Printer mechanism with new one.

1. Set the Torsion spring 0.22 for the PE sensor lever to the suitable position.

1. Reassemble the Paper guide upper/left to the Main frame correctly.

The top of a paper is not loaded to th e PF roller.

* The CR unit can move to home position even if the Tension spring 0.22 comes off or the HP/PE sensor is not correctly placed. However, the HP detection lever keeps the high signal condition in the next operation. Therefore, the paper jam error is detected. ** In case that the paper jam error occurs in each operation, the jammed paper contacts the nozzle surface of the Printhead and the Pri nthead may be damaged.

Paper guide upper/

left **

Troubleshooting Unit Level Troubleshooting 59

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EPSON Stylus C60 Revision A

Table 3-8. Paper out error condition and possible cause

Error condition

Paper out error

LED indication

STM3 message

Power : On

Error : On

Paper not loaded

correctly

Occurrence

timing

Operation -

CR position at the

power on timing

Unit/Part name Possible cause Check table

ASF unit

Holder sh aft unit

Paper guide upper/le ft The Paper guide upper (only HP side) comes off.

PF motor

Pump unit

The Compression spring 2.50 comes off. The Tension spring 29.1 comes off. The Tension spring 0.143 comes off. The Dowel in Clutch comes off. The Clutch tooth is damaged. The Clutch is damaged. The friction of the LD roller is lowered.

Refer to Table 3-9

The Paper return plate disturbs the rotation of the LD roller.

The PF motor connector cable comes off. The PF motor is defective. The PF motor connector cable is damaged. The Compression spring 1.764 comes off. The tip of the Change lever is damaged.

Table 3-9. Check point for the paper out error according to each phenomenon

Occurrence

timing

CR position

Operation

Detailed phenomenon

The Hopper does not operate during the paper loading sequence although the LD roller rotates to load a paper from ASF unit.

Defective

unit/part name

ASF unit

Check point Remedy

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

1. Reassem bl e the Compression spring 2.50 between the ASF frame and the Hopper.

Comp. Spring 2.50

Troubleshooting Unit Level Troubleshooting 60

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Table 3-9. Check point for the paper out error according to each phenomenon

Occurrence

timing

CR position

Operation

Detailed phenomenon

When a top of a paper at the correct timing during the paper load ing sequence, the paper is ejected immediately without setting the paper setting position for printing.

The LD roller does not attempt to load a paper during the paper loading sequence although the PF motor and the Spur gear 60 rotate. (But, the drive of the PF motor is not transmitted to the LD roller shaft.)

Defective

unit/part name

ASF unit

Holder shaft unit

Paper guide upper/

left

Pump unit

Check point Remedy

1. Check if the Paper return plate operates correctly in the paper loading sequen ce.

1. Check if the Tension spring 0.143 comes off in the Clutch mechanism.

2. Check if the Clutch comes off from the dowel of the LD

roller shaft.

3. Check if the Clutch tooth is dama ge d .

Tension spring 0.143

Clutch tooth

Dowel of the LD roller

4. Check if the Clutch is damage.

1. Check if the Paper guide upper (only HP side) comes off from the Main frame.

1. Check if the Compression spring 1.764 comes off in the Change lever.

Change lever

1. Reassemble the Tension spring 29.1 between the ASF frame and the Paper return plate.

Torsion spring 29.1

1. Reassemble the Torsion spring 0.143 in the Clutch mechanism.

2. Reassem ble the round portion of the Clutch

on the dowel of the LD roller shaft.

3. Replace the Holder shaft unit with new one.

4. Replace the Holder shaft unit with new one.

1. Reassemble the Paper guide upper to the Main frame.

1. Replace the Printer mechanism with new one.

Comp. sprin g 1.764

The LD roller is not set to t he ASF h ome position and a paper is always loaded from ASF unit during the paper loading

Pump unit

1. Check if the tip of the Change lever is damaged. 1. Replace the Printer mechanism with new one.

sequence.

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Table 3-9. Check point for the paper out error according to each phenomenon

Occurrence

timing

CR position

Operation

Detailed phenomenon

The LD roller does not attempt to load a paper during the paper loading se quence. And also, the PF motor and the Spur gear 60 does not rotate at all.

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

Defective

unit/part name

Holder shaft unit *

PF motor *

Holder shaft unit

Check point Remedy

1. Check if the Paper return plate disturbs the rotation of the LD roller.

LD roller

Paper return plate

1. Check if the CR motor connector cable is connected to CN7 on the Main board.

2. Check if the coil resistance of the CR motor is about 6.0

ohm by using the tester. Refer to Table 3-1.

3. Check if the CR motor con nector cable is damaged.

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

LD roller

1. Reassemble the ASF unit to the printer.

1. Connect the PF motor connector cable to CN7 on the Main board.

2. Replace the PF motor with new one.

3. Replace the PF motor with new one.

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 remove d. To remove severe smear, staple a cloth moistened with alcohol to a post card and clean the roller in the same manner.

Non-adhesive A rea

CL Sheet

Adhesive Area

This side down

(Use a post card for the base sheet)

Staplers

Cloth mois t ened with alcohol

*If the problem is not solved, replace the Holder shaft unit with new one.

* When the Change lever is at the backside of the printer at power on timing, the printer can moves to the stand-by mode even if the PF motor does not rotate.

Troubleshooting Unit Level Troubleshooting 62

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EPSON Stylus C60 Revision A

Table 3-10. Communication error condition and possible cause

Error condition

Communication

error

Occurrence

timing

CR position

Power on

Anywhere

Operation

LED indication STM3 message

Power : Off

Error : Off

Communication er ror

Occurrence

timing

Power on Anywhere

Operation -

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

Detailed phenomenon

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

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

CR position at the

power on timing

Defective

unit/part name

Power supply

board

Main board

Parallel/USB cable

Printer driver

Unit/Part name Possible cause Check table

Main board The Main board is defective.

The Power supply connector cable comes off.

Power supply board

Main board

Parallel cable

Printer driver The suitable printer driver is not installed into the PC.

1. Check if the Power supply connector cable is connected to CN2 on the Main board.

2. Check if t he Power supply connector cable is damaged.

1. Check if the incorrect model name is stored into the 5F<H> address of the EEPROM on the Main board.

1. Check if the Parallel/USB cable is connected between the printer and the PC.

1. Check if the Stylus C60 printer driver is used for the printer job.

The Power supply connector cable is damaged. The Power supply board is defective. The incorrect data is stored into the specific address of the

EEPROM. The parallel cable does not support the bi-directional

transportation.

Check point Remedy

1. Connect the Power supply connector cable to CN2 on the Main board.

2. Replace the Power supply board with new one.

* If the problem is not solved, replace the Main board with new one.

1. Write the 00<H> data into the 5F <H> address of the EEPROM by using the Dump eve. program in the Adjustment program.

1. Connect the Parallel/USB cable to the printer and the PC.

1. Install the Stylus C60 printer driv er in the PC.

Refer to Table 3-11

Troubleshooting Unit Level Troubleshooting 63

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EPSON Stylus C60 Revision A

Table 3-12. Error condition before the initial ink charge/the I/C replacement CL and possible cause & Ink out error and possible cause

Error condition

Error before the

initial ink charge is

performed

Error before the ink

replacement CL is

performed

Ink out error

* The above LED indication timing is at the CR home position. When the CR unit moves to the I/C replacement position with the I/C replacement sequence, this indication will change to blink condition.

LED indication *

STM3 message

Power : On

Error : On

Incorrectly installed

cartridge

Power : On

Error : On

Installed ink cartridge

cannot be recognized

Power : On

Error : On

Black & Color ink

cartridge not installed

Power : On

Error : On

Black & Color ink out

Occurrence

timing

Power on

CR position at the

power on timing

Inside HP

Anywhere

Unit/Part name Possible cause Check table

Ink cartridge The 1st ink cartridge is defective.

Main board

Ink cartridge

The incorrect data is stored into the specific address of the EEPROM.

2nd or more ink cartridges is defective.

The ink cartridge is compatible or counterfeit one.

Refer to Table 3-13

The ink cartridge is defective.

The ink cartridge is compatible or counterfeit one.

The ink amount in I/C is end condition.

The ink cartridge is defective.

Table 3-13. Check point for the error before the initial ink charge according to each phenomenon

Occurrence

timing

CR position

Power on Inside HP

Detailed phenomenon

The printer does not perform the initial ink charge and the error is indicated with LEDs and STM3.

Defective

unit/part name

Ink cartridge

Main board

Check point Remedy

1. Check if the ink cartridge can be used by install it to other printer.

1. Check if the incorrect data is stored into the 3C<H> address of the EEPROM on the Main board.

1. Replace th e in k cartridge with the brand-new one.

1. Write the 9E<H> data into the 3C<H> address of the EEPROM by using the Dump exe. program in the Adjustment program.

Troubleshooting Unit Level Troubleshooting 64

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EPSON Stylus C60 Revision A

Table 3-13. Check point for the error before the initial ink charge according to each phenomenon

Occurrence

timing

CR position

Power on

Anywhere

Error condition

Multiple papers

are always loaded

Occurrence

timing

CR position

Operation

Detailed phenomenon

The printer does not perform the ink replacement CL and the error is indicated wit h LEDs and STM3.

The printer does not perform the printi ng operation and the error is indicated with LEDs and STM3.

Table 3-14. Multiple papers are always loaded without LEDs and STM3

LED indication STM3 message

Power : -

Error : -

No appear

Occurrence

timing

Operation - ASF unit The Tension spring 29 .1 comes off. Refer to Table 3-15

Table 3-15. Check point for multiple papers are always loaded without LEDs and STM3

Detailed phenomenon

Any error condition is not indicated with the LEDs and STM3. But, multiple papers are always loaded from ASF unit.

Defective

unit/part name

Ink cartridge

CR position at the

power on timing

Defective

unit/part name

ASF unit

Check point Remedy

1. Check if ink cartridge can be used by install it to other printer.

1. Check if the ink is remaining in the I/C.

2. Check if the ink cartridge can be used by install it to other

printer.

Unit/Part name Possible cause Check table

Check point Remedy

1. Check if the Paper return plate operates correctly in the paper loading sequen ce.

1. Replace th e ink cartridge with brand-new one.

2. Replace th e ink cartridge with brand-new

one.

1. Reassemble the Tension spring 29.1 between the ASF frame and the Paper return plate.

Torsion spring 29.1

Troubleshooting Unit Level Troubleshooting 65

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EPSON Stylus C60 Revision A

Table 3-16. Abnormal noise

Error condition

Abnormal noise

Occurrence

timing

CR position

Anywhen

Anywhere

LED indication

STM3 message

Power : -

Error : -

No appear

Detailed phenomenon

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

The bottom of the C R unit contacts the surface of the Front frame.

The CR unit collides to the Paper guide upper/left durin g each operation.

Occurrence

timing

Anywhen Anywhere

CR position at the

power on timing

Unit/Part name Possible caus e Check table

CR unit The lubrication amount of the gr ease is insufficient.

The Front frame is bent up.

Front frame

The lubrication amount of the grease is insufficient.

Paper guide upper/left The Pap er guide upper/left come s of f.

Pump unit The Change lever is not moved smoothly.

Table 3-17. Check point for the abnormal noise

Defective

unit/part name

CR unit

Front frame

Pump unit

Front frame

Paper guide upper/

left

1. Check if the grease on the CR guide shaft is sufficient. 1. Wipe off the remaining grease on the CR

1. Check if the grease on the Front frame is sufficient. 1. Wipe off the remaining grease on the Front

1. Check if the Change lever moves smoothly. 1. Replace the Printer mechanism with new one.

1. Check if the Front frame is bent up. 1. Replace the Front frame with new one.

1. Check if the Paper guide upper/left comes off from the Main frame.

Check point Remedy

Refer to Table 3-17

guide shaft and lubricate it on its shaft.

frame and lubricate it on its frame.

1. Reassemble the Paper guide upper/left to the Main frame.

Troubleshooting Unit Level Troubleshooting 66

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EPSON Stylus C60 Revision A

Table 3-18. Poor printing quality

Error condition

Poor printing

quality

Occurrence

timing

Operation -

CR position at the

power on timing

Phenomenon Unit/Part name Possible cause Check table

The seal rubber portion of the Cap has any foreign materia l or any damage.

The spring unde r t he Ca p co m es off. The Pump tube comes off from the bottom of the Cap.

Cap unit

The Extension spring 0.523 (for the Slider cap) comes off. Dot missing No printing

Misalignment

Mixed color

Ink cartridge The ink amount in I/C is end condition.

Main board The Main board is defective.

Printhead

CR motor The accuracy of the CR motor is lowered.

The Extension spring 0.383 (for th e Slider lock lever) come s

off.

The Slider lever is damaged.

The Printhead has any foreign m ate rial on the n ozz le surfa ce.

The Printhead is defective.

The Head FFC is damaged.

The CR guide shaft has any stain or any damage.

Refer to Table 3-19

The lubrication amount of the grease is insufficient.

The Torsion spring for the CR guide shaft comes off.

The both I/C is not hold by the I/C cover securely.

The lubrication amount of the grease is insufficient.

The Front frame is bent up or down.

Vertical banding

against the CR

movement direction

CR unit

Front frame

Printhead Each segment is printed correctly in the nozzle check pattern.

Troubleshooting Unit Level Troubleshooting 67

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EPSON Stylus C60 Revision A

Table 3-18. Poor printing quality

Error condition

Poor printing

quality

Occurrence

timing

Operation -

CR position at the

power on timing

Phenomenon Unit/Part name Possible cause Check table

PF motor The accuracy of the PF motor is lowered.

The PF roller has any foreign material.

Horizontal banding

against CR movement

direction

Star wheel mark

Insufficient top margin LD roller unit The friction of the LD roller is lowered.

Ink Blur

PF roller unit

Printer driver The printer driver setting is not suitable.

Printhead Each segment is printed correctly in the nozzle check pattern.

Front frame

Paper eject roller unit The Paper eject roller shaft comes off.

Printer driver The printer driver setting is not suitable.

Printhead The Head ID is not input correctly.

Front frame

Lower housing The Lower housing has the ink stain somewh ere.

The PF roller is d am a ge d

The Spur gear 60 is damaged.

The Front frame is bent down.

The Star whee l comes off.

The Front frame has the ink stain somewhere.

The Front frame is bent up.

Refer to Table 3-19

Ink stain

Paper eject roller unit

Paper guide up per/left The Paper guid e upper/left has ink stain somewhere.

PF roller unit The PF roller has ink stain somew h e r e.

Printhead

Wrinkle ASF unit The Hopper pad/LD pad is correctly not pasted on the dent.

The Paper eject roller has ink stain somewhere.

The Spur gear 60 comes off.

The Printhead has the ink drop on the nozzle surface.

The Printhead cover has the ink drop.

Troubleshooting Unit Level Troubleshooting 68

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EPSON Stylus C60 Revision A

Table 3-19. Check point for the poor printing quality

Occurrence

timing

CR position

Operation

Detailed phenomenon

[Phenomeno n 1] In the CL sequence, the Pump unit seems to work correctly. But, the ink is not ejected to the Waste drain ink pad at all.

Moreover, any ink is not absorbed from the Printhead to the cap.

[Phenomeno n 2] In the CL sequence, the ink is ejected to

the Waste drain ink pad (this means the Pump unit & the Cap unit works correctly). But, the dot missing is not solved at the specific nozzles even if the several CLs are performed.

[Phenomeno n 3] In the CL sequence, the ink is ejected to the Waste drain ink pad (this means the Pump unit & the Cap unit works correctly). But, the wiping operation is not performed correctly and the colors are mixed.

Defective

unit/part name

Cap unit

Check point Remedy

1. Check if there is any foreign material around the seal rubber parts on th e Cap unit.

Seal rubber portion

2. Check if any damage is observed around the seal rubber

parts on the Cap uni t.

3. Check if the Compression spring is assembled in the Cap

unit correctly.

Compression spring

4. Check if the Pump tube is connected to the bottom of the

Cap unit correctly

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

2. Replace the Printer mechanism with new one.

3. Replace the Printer mechanism with new one.

4. Replace the Printer mechanism with new one.

[Phenomeno n 4] In the CL sequence, the ink is ejected to the Waste drain ink pad. But, the dot missing occurs on the several nozzle in the printing.

[Phenomeno n 5] In the CL sequence, the ink is ejected to

5. Check if the Extension spring 0.523 comes off from the Slider cap.

6. Check if the Extension spring 0.383 comes off from the Slider lock lever.

Pump tube

connection point

5. Reassemble the Extension spring 0.523 correctly.

6. Reassemble the Extension spring 0.383 correctly.

Exp. spring 0.523

the Waste drain ink pad. But, the missing point (dot missing nozzle) is changed in

Exp. spring 0.383

every CL operation.

Troubleshooting Unit Level Troubleshooting 69

Page 75

EPSON Stylus C60 Revision A

Table 3-19. Check point for the poor printing quality

Occurrence

timing

CR position

Operation

Detailed phenomenon

[Phenomeno n 6] In the CL sequence, the ink is ejected to the Waste drain ink pad. But, dot missing/misalignment occurs on all nozzle in the printing and is not solved in the several CLs.

* If the problem solved, repl ace th e Main board with new one.

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

CR movement

direction

Defective

unit/part name

Cap unit

Ink cartridge

Printhead

CR unit

Check point Remedy

7. Check if the Slider lock lever is damaged. 7. Replace the Printer mechanism with new one.

1. Check if the ink is remaining in the I/C. 1. Replace the ink cartridge with brand-new

one.

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

surface of the Printhead.

2. Check if the Head FFC is connected to the CN4 on the

Main board or Head FFC.

3. Check if the Head FFC is doggone d.

4. Check if each segment is printed correctly in the nozzle

check pattern.

1. Check if there is any foreign material on the surface of the

CR guide shaft.

2. Check if any damage is observed on the surface of the CR

guide shaft.

3. Check if the grease is enough on the surface of the CR

guide shaft.

G-58 lubrication

1. Perform the wiping operation.

2. Connect the Head FFC securely to the CN4 on the Main board or Printhea d.

3. Replace the Head FFC with new one.

4. Perform the printhead cleaning and check the nozzle check pattern. If the problem is not solved, replace the printhead with new one.

1. Remove the foreign material around the seal

rubber parts carefully.

2. Replace the CR guide shaft wi th new one.

3. Clean the surface of the CR guide shaft with the dry soft clot h and lubricate G-5 8 on its shaft. Refer to Figure 6-4.

[Note] If the problem is not solved, replace the CR motor with new one.

4. Check if the CR guide shaft is correctly set by the CR guide shaft rod springs to the Main frame.

5. Check if the ink cart ridge is fixed by the ink cartridge cover.

4. Reassemble the CR shaft guide correctly.

5. Replace the ink cartridge cover with new one.

Troubleshooting Unit Level Troubleshooting 70

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EPSON Stylus C60 Revision A

Table 3-19. Check point for the poor printing quality

Occurrence

timing

CR position

Operation

Detailed phenomenon

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

Micro banding appears horizontally against the CR move m e nt dire c tio n and it appears with the same width.

CR movement

direction

[Note] If the problem is not solved, replace the PF motor with new one.

Star wheel mark against the CR movement direction

Defective

unit/part name

Front frame

Printhead

PF roller unit

Printer driver &

exclusive paper

Printhead

Front frame

Check point Remedy

1. Check if the grease is enough on the surface of the

Front frame.

G-58 lubrication

2. Check if the surface of the Fro nt frame i s flat.

1. Check if each segment is printed correctly in the nozzle

check pattern.

1. Check if there is any foreign material on the surface of the

PF roller.

2. Check if the PF roller is damaged

3. Check if the Spur gear 60 is damaged.

1. Check if the suitable paper is used acc ord in g t o t he pr inter

driver setting.

1. Check if each segment is printed correctly in the nozzle

check pattern.

1. Check if the Star whee l comes off.

2. Check if the surface of the Fro nt frame i s flat.

1. Check if the Paper eject roller comes off from the Lower

housing.

1. Clean the surface of the Front frame with the dry soft cloth and lubricate G-58 on its shaft. Refer to Figure 6-6/Figure 6-7.

2. Replace the Front frame with new one.

1. Perform the printhead cleaning and check the nozzle check pattern. If the problem is not solved, replace the printhead with new one.

1. Clean the surface of the PF roller carefully with the soft cloth.

2. Replace the Printer mechanism with new one.

3. Replace the Printer mechanism with new one.

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

1. Perform the printhead cleaning and check the nozzle check pattern. If the problem is not solved, replace the printhead with new one.

1. Reassemble the Star wheel correctly.

2. Replace the Front frame with new one.

1. Reassemble the Paper eject roller correctly.

Paper eject roller

unit

Troubleshooting Unit Level Troubleshooting 71

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EPSON Stylus C60 Revision A

Table 3-19. Check point for the poor printing quality

Occurrence

timing

CR position

Operation

Detailed phenomenon

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

Printing is blurred.

A paper stains with ink

A top of a paper get wrinkled. ASF unit

Defective

unit/part name

LD roller unit

Printer driver &

exclusive paper

Printhead

Front frame

Lower housing

Paper eject roller

unit

Paper guide upper/

left

PF roller

Printhead

Check point Remedy

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

LD roller

1. Check if the suitable paper is used acc ord in g t o t he pr inter driver setting.

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

1. Check if the Front frame has the ink stain somewhere. 1. Clea n the ink stain of the Fr ont frame

1. Check if the Front frame is bent up. 1. Replace the Front frame with new one.

1. Check if the Lower housing has the ink stain somewhere. 1. Clean the ink stain of the Lower housing

1. Check if the Paper ej ect roller has ink stain somewhere. 1. Clean the ink stain of the Paper eject roller

1. Check if the Spur gear 60 comes off. 1. Replace the Printer mechanism with new one.

1. Check if the Paper guide upper/left has ink stain somewhere.

1. Check if the PF roller has ink stain somewhere. 1. Clean the ink stain of the PF roller carefully

1. Check if the wiping operation is correct performed.

2. Check if the Printhead cover has the ink drop.

1. Check if the Ho pper pad is correctly pasted on the dent of the Hopper.

2. Check if the LD pad is correctly pasted on the dent of the

Paper return plate.

*If the problem is not solved, replace the Holder shaft unit with new one.

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

1. Input 11 digits code of the Head ID into the EEPROM by using the Adjustment program.

carefully with the soft cloth.

1. Clean the ink stain of the Paper guide upper /left carefully with the soft cloth.

with the soft cloth.

1. Replace the Printer mechanism with new one.

2. Clean the ink drop on the Print head cover

carefully with the soft cloth.

1. Replace the he Hopper pad with new one.

2. Replace the LD pad with new one.

Troubleshooting Unit Level Troubleshooting 72

Page 78

DISASSEMBLY AND ASSEMBLY

CHAPTER

Page 79

EPSON Stylus C60 Revision A

W ARNING

4.1 Overview

This section describes procedures for disass embling the main components of the Stylus C60. Unless otherwise specified, disassembly un its o r compo nents can be r eassemb led by reversing the disassembly procedure. Things, if not strictly observed, that could result in injury or loss of life are described under the heading “Warning”. Precautions for any disassembly or assembly procedures are described under the heading “CAUTION”. Chips for disassembling procedures are described under the heading “CHECK POINT”. If the assembling procedure is different from the reversed procedure of the disassembling, the procedure is described under the heading “REASSEMBLY”. Any adjustments required after reassembling the units are described under the heading “ADJUSTMENT REQUIRED”. When you have to remove any units or parts that are not described in this chapter, refer to the exploded diagrams in the appendix.

Read precautions described in the next section before starting.

4.1.1 Precautions

See the precautions given under the handling “WARNING” and “CAUTION” in the following column when disassembling or assembling EPSON Stylus C60.



Disconnect the power cable before disassembling or assembling the printer.



If you need to work on the printer with power applied, strictly follow the instructions in this manual.



Wear protective goggles to protect your eyes from ink. If ink gets in your eye, flush the eye with fresh water and see a doctor immediately.



Always wear gloves for disassembly and reassembly to avoid iujury 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 in k comes into contact with your skin, wash it off with soap and water immediately. If irritation occurs, contact a physician.



When a lithium battery is installed on the main board of this printer, make sure to observe the following instructions when serving the battery:

1.Keep the battery away from any metal or other batteries so that electrodes of the opposite polarity do not come in contact with each other.

2.Do not heat the battery or put it near fire.

3.Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte f rom the b attery, bur ning or expl osion. The leakage may affect other devices close to the battery.)

4.Do not charge the bat t ery. (An explosion may be generated inside the battery, and cause burning or explosion.)

5.Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning or explosion may also be resulted.)

6.Do not install the battery in the wrong direction. (This may cause burning or e xplosion.)



Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacture. Dispose the used batteries according to government’s law and regul ation s .

Disassembly and Assembly Overview 73

Page 80

EPSON Stylus C60 Revision A

CAUTION

W ARNING

CAUTION

 Avant de commencer, assure vous que l’imprimante soit eteinte

et que le cordon d’alimentation soit debranche. Lorsque vous changez la pile au lithium, assurez vous que la



nouvelle respecte bien les caracteristiques requises. Lorque que vous installez la pile au lithium, faites attention a



l’inserer dans le bon sens en respectant la polarite. Veillez a jeter les piles usagees selon le reglement local.



Ne rechargez pas les piles au lithium.



Risque d’explosion si la pile est remplacée incorrectment. Ne remplacer que par une pile du même type ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées selon les lois et les règles de sécurité en vigueur.

Never remove the ink cartridge from the carriage unless this



manual specifies to do so.

 When transporting the printer after installing the ink cartridge,

be sure to pack the printer for transportation without removing the ink cartridge. Use only recommended tools for disassembling, assembling or



adjusting the printer. Observe the specified torque when tightening screws.



Apply lubricants and adhesives as specified. (See Chapter 6 for



details.) Make the specified adjustments when you disassemble the



printer. (See Chapter 5 for details.) When assembling, if an ink cartridge is removed and needs to be



installed again, be sure to install a new ink cartridge because of the following reasons;

1.Once the ink cartridge mounted on the printer is removed, air

comes in and creates bubbles in the cartridge. These bubbles clog ink path and cause printing malfunction.

2.If an ink cartridge in use is removed and is reinstalled, ink quantity

will not be detected correctly since the counter to check ink consumption is cleared.

Because of the reasons above, make sure to return the printer to



the user with a new ink cartridge installed. Make sure the tip of the waste ink tube is located at correct



position when reassembling the waste ink tube. Otherwise it will cause ink leakage.

Disassembly and Assembly Overview 74

Page 81

EPSON Stylus C60 Revision A

4.1.2 Tools

Use only specified tools to avoid damaging of the printer.

Table 4-1. Tools

Name Supplier Parts No.

Phillips Screw Driver (No.1) EPSON B743800100 Phillips Screw Driver (No.2) EPSON B743800200 Nipper EPSON B740500100 Tweezers EPSON B741000100 POM Puller EPSON 2035659 (#F749) Hexagon Box Driver

(Opposite side : 5.5 mm)

EPSON B741700100

4.1.3

Screws

Table 4-2. Screws

No Name and specification Outward form pcs

1 C.B.S. SCREW, 3 x 6, F/Zn

2 C.C.S-TITE SCREW, 3 x 6, F/Zn

3 C.B.P-TITE SCREW, 3 x 8, F/Zn

4 C.B.S. SCREW, 3 x 14, F/Zn

5 C.B.S-TITE (P4), 3 x 6, F/Zn

6 +BIND B-TITE SEMS W2, 2.5 X 5, F/Zb

7 C.B.(O). SCREW, 4 x 5, F/Zg

8 C.B.P-TITE SCREW, 3 x 10, F/Zn

Disassembly and Assembly Overview 75

Page 82

EPSON Stylus C60 Revision A

4.1.4 Work Completion Check

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

Table 4-3. Work Completion Check

Classifi-

cation

Main Unit

Adjustment

Item Check Point Status

Self-test Is the operation normal?

On-line Test Is the printing successful?

Printhead

Carriage Mechanism

Paper Feeding Mechanism

Specified Adjustment

Is ink discharged normally from all the nozzles?

Does it move smoothly?

Is there any abnormal noise during its operation?

Is there any dirt or foreign objects on the CR Guide Shaft?

Is the CR Motor at the correct temperature? (Not too heated?)

• Is paper advan ced smoothly?

• No paper jamming?

• No paper skew?

• No multiple feeding?

• No abnormal noise? Is the PF Motor at correct

temperature? Is the paper path free of any

obstructions? Are all the adjustment done

correctly?

Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Table 4-3. Work Completion Check

Classifi-

cation

Lubrication

Function ROM Version Version:

Packing

Others

Item Check Point Status

Are all the lubrication made at

Specified Lubrication

Ink Cartridge

Protective Materials

Attachments, Accessories

the specified points? Is the amount of lubrication

correct?

Are the ink cartridges installed correctly?

Have all relevant protective materials been attached to the printer?

Have all the relevant items been included in the package?

Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Checked



Not necessary



Disassembly and Assembly Overview 76

Page 83

EPSON Stylus C60 Revision A

4.2 Disassembly

The flowchart below shows step-by-step disassemb ly procedures. When d isassembling each unit, refer to the page number shown in the figure.

Upper housing removal

Page 78

Printhead removal

Page 80

CR unit removal

Page 82

CR motor removal

Page 85

*2)

ASF unit removal

Page 86

PSB/PSE unit removal

Page 88

*1) Lower housing removal

Page 99

Holder shaft unit removal

Page 91

Circuit board removal

Page 95

*3)

* The numbers in the figure of each section means

Waste drain ink pad removal

Page 98

the disassembling procedure of the specific part.

Ink system unit removal

Page 104

PF roller removal

Page 107

PF motor removal

Page 109

Paper eject roller removal

Page 103

* Each disassembly procedure explains how to

disassemble individual part in the units.

*1) Only when you replace the Lower housing with new one, you can remove the

Printer mechanism from the printer. In this time, be careful not to deform the Main frame.

*2) We recommend to replace to new Printer mechanism with the Lower housing to avoid the Main frame deformation by removing a part on the

Printer mechanism without the Lower housing (These units are not established for the service part individually). However, the these procedures should be followed in the urgent case. In this time, the disassembly procedure is different depending on the removed unit. * Ink system unit : ASF unit, CR unit, PSB/PSE unit, Holder shaft unit , Lower housing * PF roller/PF motor : ASF unit, CR unit, PSB/PSE unit, Lower housing

*3) Do not remove or replace the Paper eject roller and M/B mounting plate from Printer mechanism because you cannot repair the defective

printers unless these parts are established for service part.

Figure 4-1. Disassembling flowchart

Disassembly and Asse mbly Disassembly 77

Page 84

EPSON Stylus C60 Revision A

CAUTION

4.2.1 Upper housing removal

1. Move the Edge guide on the ASF unit to the rightmost position.

Edge guide

Figure 4-2. Edge guide setting position for the Lower housing removal



CHECK

PO INT

Make sure that the Edge guide is in the cutout portion of the Upper housi n g.

2. Release total seven h ooks of t he Upper housing by u sing t he precis ion screw driver (-).

Backside

left side

Hooks

Front

right side

Figure 4-3. Hooks position of the Upper housing



Do not damage hooks by the precision screwdriver (-) in removing the Upper housing.



Do not tilt the printer too much when the Upper housing is removed by the precision screwdriver (-). This is because ink may flow if the cap is not covered by the Printhead. (CR is out of the home position)

Disassembly and Asse mbly Disassembly 78

Page 85

EPSON Stylus C60 Revision A

3. Move the protrusion of the Upper housing, which contacts USB interface, to the right side slightly by using the precis i on screwdrive r (-).

USB interface

Figure 4-4. Protrusion position of the Upper housing



CAUTION

Do not damage the protrusion by the precision screwdriver (-).



When assembling the Upper housing to the printer,



Make sure that the lower metal fittings for locking the Parallel interface is on the Housing.



Make sure that seven hooks of the Upper housing is correctly fixed to the Lower housing.



Make sure that there is not the clearance between the Upper housing and the Low e r ho using.

Disassembly and Asse mbly Disassembly 79

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EPSON Stylus C60 Revision A

4.2.2 Printhead removal

1. Remove the Upper housing from the printer. (Refer to Section 4.2.1)

2. Open the Cover cartridge, and remove the both black and color ink cartridges.

3. Remove the both Cover cartridges from the CR unit.

4. Release two hooks for securing the Head FFC holder, and remove the Head FFC holder from the CR unit.

Spacer FFC

Cable holder

Hooks for Head FFC

5. Remove two screws (C.B.P-TITE SCREW 3x8 F/Zn, +BIND B-TITE SEMS W2

2.5x5 F/Zb) for tightening the Printhead, and remove the Printhead from the CR unit in the order indicated in the following figure.

C.B.P-TITE SCREW, 3x8, F/Zn

+BIND B-TITE SEMS, W2 2.5x5, F/Zb

Figure 4-6. Printhead removal

6. Disconnect the Head FFC from the connector on the Printhead.

Figure 4-5. Head FFC holder removal

Disassembly and Asse mbly Disassembly 80

Page 87

EPSON Stylus C60 Revision A

ADJUSTMENT

REQUIRED

When assembling the Printhead to the CR unit,



Make sure to place the Head FFC on the Spacer FFC and the



cable holder on the left side of the CR unit. (Refer to Figure 4-5)

Make sure to install the Head grounding plate to the carriage



correctly.

Head installation position pains

Head grounding plate

Figure 4-7. Printhead installation position

(pin & the grounding plate)

Make sure to fit two holes of the Printhead to t he installation



position pins correctly. (Refer to Figure 4-7) Fastening two screw (C.B.P-TITE SCREW 3x8 F/Zn,



+BIND B-TITE SEMS W2 2.5x5 F/Zb) for securing the Printhead to the CR unit.

When assembling the Head cable holder to the CR unit,



Make sure to place the Head FFC in the correct position.



Figure 4-8. Head FFC setting position

Make sure that the Head FFC is connected to the Printhead



correctly. Make sure that the Head cable holder is correctly fixed.



When the Printhead is replaced with new one, the following



adjustments must be performed in the order below.

1) Initial ink charge

2) Head ID input

3) Gap adjustment (Bi-d adjustment)

4) Top margin adjustmen t

5) 1st dot position adjustment

Disassembly and Asse mbly Disassembly 81

Tightening Torque for each screw is as follows.

•

C.B.P-TITE SCREW, 3 x 8, F/Zn (1 pcs) : 6 ± 1 kgf.cm

•

+BIND B-TITE SEMS, W2, 2.5 x 5, F/Zb (1 pcs) :

2 ± 0.5 kgf.cm

When the Printhead is removed and reinstalled, only the



following adjustment is required.

1) Printhead cleaning

2) Gap adjustment (Bi-d adjustment)

3) Top margin adjustmen t

4) 1st dot position adjustment

Page 88

EPSON Stylus C60 Revision A

CHECK

PO INT

4.2.3 CR unit removal

1. Remove the Upper housing from the printer. (Refer to Section 4.2.1)

2. Release the change lever toward the backside of the printer by using the tweezers, and move the CR unit from the CR home position to around the center position.

3. Loosen the CR timing belt by pushing the Driven pulley holder to the right side, and remove the CR timing belt carefully from the CR motor pinion gear.

CR timing belt

Figure 4-9. CR timing belt removal

4. Remove the Compression spring 19.6 from the Driven pulley holder by using the tweezers.

5. Slide the Driven pulley holder to the right side, and remove it forward.

6. Release the Head FFC from the Spacer FFC on the LD roller shaft holder, and disconnect the Head FFC from the connectors (CN8, CN9) on the Main board. (Refer to Figure 4-5)

7. Release two CR guide shaft rod sprin gs from the hooks on the left and righ t side of the Main frame.

Left side Right side

CR guide shaft Rod spring

Figure 4-11. CR guide shaft rod spring release



In this step, you cannot remove the left CR guide shaft rod spring from the CR guide shaft even if it is released from the Main frame. So, when sliding the CR guide shaft in the next step, remove the left CR guide shaft rod spring carefully.

Driven pulley holder

Compression spring 19.6

Figure 4-10. Compression spring 19.6 removal

Disassembly and Asse mbly Disassembly 82

Page 89

EPSON Stylus C60 Revision A

CAUTION

CHECK

PO INT

8. Pull the left end of the CR guide shaft upward, and slide the CR guide shaft to the right side while holding the CR unit by hand.

CR guide shaft

Figure 4-12. CR unit removal

9. Remove the CR guide shaft along with the CR unit by sliding it to the left or right.



CAUTION

Remove the CR guide shaft while holding the CR unit by hand. If you remove the CR guide shaft without holding the CR unit, the nozzle surface of the Printhead may come in contact with the Paper guide front, which causes the dot missing problem.



Do not remove the Spacer holder pulley driven from the Main frame. (This part has been pasted only for the products in IEI as the countermeasure of the quality problem. (Refer to Figure 4-13)

Spacer holder pulley

Figure 4-13. Pasting position for the Spacer holder pulley

driven



Unlike the previous printer (Stylus COLOR 680), the oil pad is not built in the CR unit.



If you remove the Printhead from the CR unit, make sure that the Head grounding plate is set in the CR unit. (Refer to Figure 4-7)



If the CR unit is disassembled or replaced with new one, make sure that the CR timing belt is set in the assembling groove correctly as the following figure.

Assembling groove



Do not use the removed the Pulley driven holder to other printer. (The interchangeability has not been kept completely between the Pulley driven holder depending on the manufacture.)

CR timing b elt

Figure 4-14. CR timing belt setting position

Disassembly and Asse mbly Disassembly 83

Page 90

EPSON Stylus C60 Revision A

ADJUSTMENT

REQUIRED

When assembling the CR unit to the printer,



Make sure to install the CR grounding plate in the CR unit.



CR grounding plate

Figure 4-15. Grounding plate assembling position

When assembling the CR timing belt to the carriage,



Do not stain the CR timing belt with the grease (G-58).



When assembling the Pulley driven holder to the Main frame,



Make sure to set the Compression spring 19.6 correctly.



When assembling the CR unit to the Main frame,



Do not touch the lubrication area of the CR guide shaft.



Make sure that two CR guide shaft rod springs is correctly



fixed. (Refer to Figure 4-11) Make sure that the CR unit moves smoothly.



Set the left CR guide shaft rod spring between the Spur gear



60 and the Main frame before installing the CR guide shaft with the CR unit to the printer. And, install the groove of the CR guide shaft to the cutout p ortion of th e Ma in fram e a fter passing the left end of the CR guide shaft through the CR guide shaft rod spring.

CR guide shaft rod spring

CR guide shaft

Figure 4-16. CR guide shaft rod spring setting procedure

When you replace the CR unit with new one, lubricate it with the



suitable amount of the G-58 grease by the specified position. ( Refer to Figure 6-4 in the Chapter 6.)

When you replace the Pulley driven shaft with new one, lubricate



it with the suitable amount of G-58 grease by the specific position. (Refer to Figure 6-10 in the Chapter 6.)

When you replace the Pulley driven holder with new one,



lubricate it with the suitable amount of G-58 grease by the specific position. (Refer to Figure 6-5 in the Chapter 6.)

Disassembly and Asse mbly Disassembly 84

When removing or replacing the CR unit with new one, the



following adjustment must be performed in the order below.

1) Gap adjustment (Bi-d adjustment)

2) Top margin adjustmen t

3) 1st dot position adjustment

Page 91

EPSON Stylus C60 Revision A

ADJUSTMENT

REQUIRED

4.2.4 CR motor removal



1. Remove the Upper housing from the printer. (Refer to Section 4.2.1)

2. Remove the CR unit from the printer. (Refer to Section 4.2.3)

3. Disconnect the CR motor connector cable from the connector ( CN12) on the Main board, and release the CR motor connector cable from fiv e hoo ks on th e LD roller shaft holder.

4. Remove four nots (HEXAGON NOT NORMAL M3) for securing the screw of the CR motor while holding the CR motor by hand.



When assembling the CR motor to the Main frame,



Make sure to connect the CR motor connector cable to the connector (CN12) on the Main board.



Fasten four Hexagon nut (HEXAGON NUT NORMAL M3) for securing the CR motor in the order indicated in the following figure.

HEXAGON NOT, NORMAL, M3

When the CR motor is removed or replaced with new one, the following adjustment must be performed in the order below.

1) Gap adjustment (Bi-d adjustment)

2) 1st dot position adjustment

Disassembly and Asse mbly Disassembly 85

Figure 4-17. CR motor assembling

Tightening torque for the CR motor hexagon nut is as follows.

•

HEXAGON NUT, NORMAL, M3 (4 pcs) : 6 ± 1 kgf.cm



Make sure that the CR motor is correctly fixed.

Page 92

EPSON Stylus C60 Revision A

4.2.5 ASF unit removal

1. Remove the Upper housing from the printer. (Refer to Section 4.2.1)

2. Remove three screws (C.B.S. SCREW 3x6 F/Zn, C.B.S-TITE (P4) 3x6 F/Zn, C.B.P-TITE 3x8 F/Zn) for securing the ASF unit to the Main frame, and remove the ASF unit with pulling up slightly to the backside of the printer..

C.B.P-TITE, 3x8, F/Zn

C.B.S. SCREW, 3x6, F/Zn

Figure 4-18. Screw position for removing the ASF unit

3. Remove the Compression spring 2.50 located between the ASF frame and the Hopper, and remove the Hopper from the ASF unit.

ASF hopper

C.B.S-TITE (P4), 3x6, F/Zn

4. Remove the Torsion spring 29.1 from the bottom of the ASF frame and the Pad holder (Paper return plate).

Torsion spring 29 .1

ASF frame

Figure 4-20. Torsion spring 29.1 setting position

Compression spring 2.50

ASF frame

Pad holder

Figure 4-19. Compression spring 2.50 and the Hopper removal

Disassembly and Asse mbly Disassembly 86

Page 93

EPSON Stylus C60 Revision A

ADJUSTMENT

REQUIRED

When assembling the LD pad on the Pad holder and the Hopper



pad on the Hopper,

Make sure to place it inside the square dent.



Hopper pad

LD pad

Figure 4-21. Hopper pad and LD pad setting position

Do not touch the surface of these pads.



Do not reuse the pad which you miss to stick.



When assembling the Pad holder to the ASF frame,



When assembling the ASF unit to the printer,



Make sure that the LD roller is set to the ASF home position.



Fasten three screws (C.B.S. SCREW 3x6 F/Zn, C.B.S-TITE



(P4) 3x6 F/Zn, C.B.P-TITE 3x8 F/Zn) for securing the ASF unit in the order indicated in the following figure.

Figure 4-22. ASF fixing screws fastening order

Tightening torque for each screw is as follows.

•

C.B.S. SCREW, 3x6, F/Zn (1 pcs) : 9 ± 1 kgf.cm

• C.B.S-TITE (P4), 3x6, F/Zn (1 pcs) : 9 ± 1 kgf.cm

• C.B.P-TITE, 3x8, F/Zn (1 pcs) : 6 ± 1 kgf.cm

Disassembly and Asse mbly Disassembly 87

Make sure to install the tip of the Torsion spring 29.1 in the



holes of the Pad holder and the ASF frame. Make sure that the Pad holder (Paper return plate) moves



smoothly.

When the CR motor is removed or replaced with new one, the



following adjustment must be performed in the order below.

1) Top margin adjustmen t

2) 1st dot position adjustment

Page 94

EPSON Stylus C60 Revision A

4.2.6 PSB/PSE unit removal

1. Remove the Upper housing from the printer (Refer to Section 4.2.1).

2. Remove the ASF unit from the printer (Refer to Section 4.2.5)

3. Disconnect the Power supply connector cable (CN2) from the Main board.

4. Remove two screws (C.B.S. SCREW 3x6 F/Zn, C.B.P-TITE SCREW 3x8 F/Zn) for securing the PSB/PSE unit to the printer, and remove the PSB/PSE unit with pulling toward the backside of the printer.

C.B.S. SCREW, 3x6, F/Zn

C.B.P-TITE SCREW, 3x8, F/Zn

Figure 4-23. PSB/PSE unit removal

5. Remove one screw (C.B.S. SCREW 3x6 F/Zn) for securing the Upper power supply board shield plate, and remove the Upper power supply board shield plate.

C.B.S. SCREW, 3x6, F/Zn

Figure 4-24. Upper power supply board shield plate removal

6. Remove three screws (C.B.S. SCREW 3x6 F/Zn, C.C.S-TITE SCREW 3x6 F/Zn) for securing the Power supply board, and remove one screw (C.B.(O). SCREW 4x5 F/Zg) for the earth wire.

C.B.(O). SCREW, 4x5, F/Zg

Dowel

Earth wire

Radiator, P/S

C.C.S-TITE SCREW, 3x6, F/Zn

C.B.S. SCREW, 3x6, F/Zn

Figure 4-25. Power supply board removal

Disassembly and Asse mbly Disassembly 88

Page 95

EPSON Stylus C60 Revision A

7. Remove the Upper power supply board from the Lower power supply board shield

Make sure to set the Power supply radiator in the correct

plate.



position. (Refer to Figure 4-26)

When assembling the Power supply board to the Lower power



supply board shield plate,

Make sure to install the Power supply board correctly.



Fasten three screws (C.B.S. SCREW 3x6 F/Zn, C.C.S-TITE



SCREW 3x6 F/Zn, C.B.(O). SCREW 4x5 F/Zg) for securing the Power supply board and the earth wire to the Lower power supply board shield plate in the order indicated in the following figure.

Transformer

Heat sink

Figure 4-26. Tightening procedure for the PSB/PSE board

Make sure to set the earth wire on the dowel of the Lower



power supply board shield plate (Refer to Figure 4-25) (* The product with 110V type AC cable does not have the earth line)

When assembling the Upper power supply shield plate to the



Lower power supply shield plate,

Make sure to place the Power supply connector cable in the



space between both power supper shield plates.

Figure 4-27. Power supply connector cable setting position

Tightening torque for each screw is as follows.

•

C.B.(O). SCREW, 4x5, F/Zg (1 pcs) : 11 ± 1 kgf.cm

•

C.B.S. SCREW, 3x6, F/Zn (2 pcs) : 6 ± 1 kgf.cm

•

C.B.S-TITE SCREW, 3x6, F/Zn (1 pcs) : 6 ± 1 kgf.cm

Make sure to place three wires of the AC cable away from



the Transformer and the Heart sink on the Power supply board. (Refer to Figure 4-26)

Disassembly and Asse mbly Disassembly 89

Page 96

EPSON Stylus C60 Revision A

 Fasten one screw (C.B.S. SCREW 3x6 F/Zn) for securing the

Upper power supply shield plate to the Lower power supply shield plate. (Refer to Figure 4-24)

Tightening torque for screw is as follows.

•

C.B.S. SCREW, 3x6, F/Zn (1 pcs) : 6 ± 1 kgf.cm

When assembling the PSB/PSE unit to the Lower housing,



Make sure to set the PSB/PSE unit under the protrusion of



the Lower housing.

Hook

Figure 4-28. Power supply board shield plate setting position

Make sure to connect the Power supply connector cable to



the connector (CN2) on the Main board. Fasten two screws (C.B.P-TITE SCREW 3x8 F/Zn, C.B.S.



SCREW 3x6 F/Zn) for securing the PSB/PSE unit to the Lower housing. (Refer to Figure 4-23)

Tightening torque for each screw is as follows.

•

C.B.P-TITE SCREW, 3x8, F/Zn (1 pcs) : 6 + 1 kgf.cm

•

C.B.S. SCREW, 3x6, F/Zn (1 pcs) : 6 + 1 kgf.cm

Disassembly and Asse mbly Disassembly 90

Page 97

EPSON Stylus C60 Revision A

4.2.7 Holder shaft unit removal

1. Remove the Upper housing from the printer. (Refer to Section 4.2.1)

2. Remove the ASF unit from the printer (Refer to Section 4.2.5)

3. Release the Head FFC from the Spacer FFC on the LD roller shaft holder.

LD roller shaft hol d er

Spacer FFC

Figure 4-29. Head FFC removal

4. Disconnect the CR motor connector cable and the HP/PE Sensor cable from the connectors (CN4, CN12) on the Main board.

Connector

8. Move the Pump unit to the right side slightly while holing the whole of the Holder shaft unit, and pull the bottom of the Holder shaft unit toward the backside of the printer. (Step 3 in the Figure 4-30)

Step2) Pull the Holder shaft unit upward

Holder shaft unit

Step1) Push two hooks

Step3) Move the Pump unit

to the right side

Figure 4-30. LD roller shaft holder removal

9. Remove the LD roller shaft along with the Clutch mechanism from the LD roller shaft holder.

LD roller shaft hol d er

5. Release the CR motor connector cable from five hooks on the LD roller shaft holder.

6. Release the Change lever toward the backside of the printer by using the tweezers,

Clutch mechanism

and move the CR unit to the leftmost side (far side).

7. Push two hooks of the LD roller shaft holder, and pull the Holder shaft unit

LD roller

upward slightly from the Main frame. (Step1, 2 in the Figure 4-30)

Spur gear 35.2

LD roller shaft

Figure 4-31. LD roller with Clutch mechanism removal

Disassembly and Asse mbly Disassembly 91

Page 98

EPSON Stylus C60 Revision A

10. Remove the Spur gear 35.2 from the LD roller shaft.



11. Remove the Compression spring, 0.14 3, and remove the Clutch fr om the LD roller shaft.

12. Release one hook for securing the HP/ PE s ens or, and push the HP/PE sensor fro m

When assembling the HP/PE detection lever to the LD roller shaft holder,



Make sure to set the Torsion spring 0.22 for the HP/PE detection levers to the following suitable position.

the side contacting the Main frame by using the tweezers.

HP detectio n lever

Torsion spring 0.22

PE detection lever

HP/PE sensor

Torsion spring 0.22

Figure 4-33. Torsion spring 0.22 for each detection lever

Hook

Figure 4-32. HP/PE sensor removal

13. Remove the Torsion spring 0.22 for the HP/PE detection levers, and remove the these levers from the LD roller shaft holder.



Make sure that the HP/PE detection lever moves smoothly.



When assembling the HP/PE sensor to the LD roller shaft holder,



Make sure that the HP/PE sensor is correctly fixed by the hook of the LD roller shaft holder.



Make sure to place the HP/PE sensor cable to the suitable groove on the LD roller shaft holder.

HP/PE sensor cable

HP/PE senso r

HP/PE sensor cable

Figure 4-34. HP/PE sensor cable placing position

Disassembly and Asse mbly Disassembly 92

Page 99

EPSON Stylus C60 Revision A

When assembling the Clutch mechanism to the LD roller shaft,



Make sure to set the round hole of the Clutch on the dowel of



the LD roller shaft.

Round hole on the Clutch

Dowel on the LD roller shaft

Figure 4-35. Clutch assembling



Make sure to set the Tension spring 0.143 to the hooks of the Clutch and the LD roller shaft.

Make sure that the Clutch rotates properly.



When assembling the LD roller shaft to the LD roller shaft



holder,

Do not touch the LD roller.



When assembling the Spacer FFC on the Holder shaft unit,



Do not touch the LD roller.



Do not damage the tooth of the Spur g e ar 35.2 and the



Combination gear 16.32 when assembling the Holder shaft unit to the printer.

Spur gear 35.2

Combination gear 16.32

Figure 4-36. Spur Gear 35.2 and Combination gear 16.32

[Reference: Procedure for assembling the Holder shaft unit]

1) Set the tip of the Change lever in the Pump unit to the front side of the printer.

Make sure to place the Head FFC in the correct position.



(Refer to Figure 4-29)

When assembling the Holder shaft unit to the Main frame,



Change lever

 Make sure that five hooks and three dowels of the Holder

shaft unit is correctly fixed.

 Make sure to place the HP/PE sensor cable, CR motor

connector cable and the Head FFC on the Holder shaft unit. Make sure to connect the HP/PE sensor cable, CR motor



connector cable and the Head FFC to the connector (CN4, CN8, CN9, CN12) on the Main board.

Figure 4-37. LD roller shaft holder assembling procedure (1)

Disassembly and Asse mbly Disassembly 93

Page 100

EPSON Stylus C60 Revision A

2) Insert three hooks and one dowel of the Holder shaft unit in the order indicated in the following figure.

ADJUSTMENT

REQUIRED

Hooks

Figure 4-38. LD roller shaft holder assembling

procedure (2)

When installing the dowel of the LD roller shaft holder to the Pump unit, move the Pump unit to the right side slightly.

When removing or replacing the CR unit with new one, the



following adjustment must be performed in the order below.

1) Top margin adjustment

2) 1st dot position adj ustment

Disassembly and Asse mbly Disassembly 94

Epson C 60 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRODUCT DESCRIPTION

1.1 FEATURES

1.2 SPECIFICATIONS

1.2.1 Physical Specification

1.2.2 Printing Specification

1.2.4 Paper Specification

1.2.4.1 Plain paper

1.2.3 Paper Feeding

1.2.4.2 Envelope

1.2.4.3 Exclusive paper

1.2.5 Printing Area

1.2.5.1 Cut sheet

1.2.5.2 Envelopes

1.2.6 Ink Cartridge Specification

1.2.6.1 Black ink cartridge

1.2.6.2 Color ink cartridge

1.2.7 Electric Specification

1.2.8 Environmental Condition

1.2.9 Reliability

1.2.10 Safety Approvals

1.2.11 Acoustic Noise

1.2.12 CE Marking

1.3 INTERFACE

1.3.1 Parallel Interface (Forward Channel)

1.3.2 Parallel Interface (Reserve Channel)

1.3.3 USB Interface

1.3.4 Prevention Hosts of Data Transfer Time-out

1.3.5 Interface Selection

1.3.6 IEEE1284.4 Protocol

1.4 PANEL CONTROL

1.4.1 Indicators (LEDs)

1.4.2 Panel Functions

1.4.3 Printer Condition and Panel Status

1.4.4 Error Status

1.4.5 Printer Initialization

OPERATING PRINCIPLES

2.1 Overview

2.1.1 Printer Mechanism

2.1.2 Printhead

2.1.2.1 Printing Process

2.1.2.2 Printing Method

2.1.3 Carriage Mechanism

2.1.4 Paper Loading/Feeding Mechanism

2.1.4.1 Paper Loading Mechanism (ASF unit)

2.1.4.2 Paper Feeding Mechanism

2.1.5 Ink System Mechanism

2.1.5.1 Capping Mechanism

2.1.5.2 Pump unit mechanism

2.1.6 Ink Sequence

2.2 Electrical Circuit Operating Principles

2.2.1 C417 PSB/PSE board

2.2.2 C418 MAIN Board

2.2.2.1 Main Elements

2.2.2.2 Printhead Driver Circuit

2.2.2.3 PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit

2.2.2.4 CR Motor Driver Circuit

2.2.2.5 Reset Circuit

2.2.2.6 EEPROM Control Circuit

2.2.2.7 Sensor Circuit

TROUBLESHOOTING

3.1 Overview

3.2 Troubleshooting with LED Error Indicat ions and Status Monitor 3 Message

3.3 Unit Level Troubleshooting

DISASSEMBLY AND ASSEMBLY

4.1 Overview

4.1.1 Precautions

4.1.2 Tools

Screws

4.1.4 Work Completion Check

4.2 Disassembly

4.2.1 Upper housing removal

4.2.2 Printhead removal

4.2.3 CR unit removal

4.2.4 CR motor removal

4.2.5 ASF unit removal

4.2.6 PSB/PSE unit removal