Epson Stylus Color 670 Service Manual - PDF DOWNLOAD

Epson Stylus Color 670 Service Manual - PDF DOWNLOAD

FILE DETAILS:

Epson Stylus Color 670 Service Manual - PDF DOWNLOAD

Language :English
Pages :152
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Epson Stylus Color 670 Service Manual - PDF DOWNLOAD

About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON EPSON Stylus
COLOR 670. 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.
Contents
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
Provides the step-by-step procedures for the troubleshooting.
CHAPTER 4. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the product.
CHAPTER 5. ADJUSTMENTS
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.
APPENDIX
Provides the following additional information for reference:
• Connector pin assignments
• Electric circuit boards components layout
• Exploded diagram
• Electrical circuit boards schematics

TABLE OF CONTENTS:

Epson Stylus Color 670 Service Manual - PDF DOWNLOAD

Product Description 10
11 Overview 11
111 Features 11
12 Basic Specifications 12
121 Printing Specifications 12
Printing Method 12
Nozzle configuration 12
Printing Direction 12
printing speed and printable columns 12
Control Code 12
Character Tables 12
TypeFace 12
122 Paper Feeding 12
123 Input data buffer 12
124 Electric Specification 13
125 Environmental Conditions 13
Temperature 13
Humidity 13
Resistance to shock 14
Resistance to vibration 14
126 Reliability 14
127 Safety Approvals 14
128 Acoustic noise 14
13 Interface 15
131 Hardware interface 15
1311 Parallel interface 15
132 IEEE-1284 Parallel I/F (Reverse Channel) 17
133 USB (Universal Serious Bus) 19
134 Miscellanea 20
1341 Receive Data Buffer Full Operation 20
1342 Interface Selection 20
Automatic selection 20
Interface state and interface selection 20
1343 IEEE 12844 protocol 20
135 Printer Language and Emulation 21
1351 Control codes 21
Character mode 21
Graphics mode 21
14 Operator Controls 22
141 Operate Switch 22
142 Control Panel 22
1421 Switches 22
143 Indicators 22
144 Panel Functions 22
145 Printer Condition and Panel Status 23
146 Printer Initialization 23
147 Errors 24
148 Paper Handling 24
149 Paper Specification 24
1410 Printable Area 26
14101 Cut Sheet 26
14102 Envelope 27
1411 Ink Cartridge 28
Black Ink Cartridge 28
Color Ink Cartridge 28
15 Physical Specification 29
16 Accessories 29
Operating Principles 30
21 Overview 31
211 Printer Mechanism 31
212 Printhead 33
2121 Printing Process 34
2122 Printing Method 35
213 Carriage Mechanism 36
2131 Platen Gap (PG) Adjustment Mechanism 36
214 Paper Feeding Mechanism 37
215 Paper Loading Mechanism (ASF Unit) 38
216 Ink System Mechanism 40
2161 Pump Unit and CR Lock Mechanism 40
217 Capping Mechanism 41
218 Ink Sequence 42
22 Electrical Circuit Operating Principles 43
221 C301PSB/PSE Board 43
222 C301MAIN Board 45
2221 Main elements 46
2222 Printhead Driver Circuit 47
2223 PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit 48
2224 CR Motor Driver Circuit 49
2225 Reset Circuit 49
2226 EEPROM Control Circuit 50
2227 Sensor Circuit 51
Troubleshooting 52
31 Overview 53
32 Unit Level Troubleshooting 54
321 Printer does not operate at power on 55
322 Error is detected 55
323 Failure occurs during printing 56
324 Printer does not feed paper correctly 56
325 Control panel operation is abnormal 57
33 Unit Repair (Power Supply Board) 57
34 Unit Repair (Control Board) 58
35 Unit Repair (Printer Mechanism) 61
Disassembly and Assembly 66
41 Overview 67
411 Precautions 68
412 Tools 69
413 Work Completion Check 70
42 Disassembly 71
421 Housing Removal 72
422 Circuit Board Assembly Removal 73
423 Control Panel Removal 75
424 Ink Absorber Tray Assembly (Waste Ink Pad) Removal 76
425 Printer Mechanism Disassembly 77
4251 Printhead Removal 77
4252 Pump Assembly / Cap Assembly Removal 80
4253 CR Motor Assembly Removal 82
4254 PF Motor Assembly Removal 83
4255 ASF Assembly Removal 85
4256 ASF LD Roller Assembly Removal 87
4257 LD Roller Assembly Disassembly 92
4258 CR Assembly Removal 93
4259 PE Sensor Assembly Removal 95
42510 PF Roller Assembly Removal 96
42511 CR HP Sensor Removal 98
Adjustment 99
51 Overview100
511 Required Adjustments100
52 Adjustment101
521 PG Adjustment101
53 Using the Adjustment Program103
531 Adjustment Program Installation Procedure103
532 Adjustment Program103
533 Adjustment Program Initial Setting Screen104
534 Check This Model Name106
535 Head ID Input107
536 Head Angular Adjustment109
537 Bi-D Adjustment112
538 USB ID Input115
To Only Check the USB ID116
539 Head Cleaning117
5310 Initial Ink Charge118
5311 Protection Counter Indication / Reset119
5312 Print A4 Check Pattern121
Maintenance122
61 Overview123
611 Cleaning123
612 Service Maintenance124
613 Lubrication125
Appendix129
71 Connector Summary130
711 Major Component Unit130
712 EEPROM Address Map133
72 Component Layout137
73 Exploded Diagram139
74 Parts List143
75 Electric Circuit Diagrams148

S.M 26/2/2025