Epson 880 Service Manual – PDF DOWNLOAD
FILE DETAILS:
Epson 880 Service Manual – PDF DOWNLOAD
Language :English
Pages :179
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Epson 880 Service Manual – PDF DOWNLOAD
PREFACE
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 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:
• EEPROM Address Map
• Connector Pin Assignments
• Component Layout
• Parts List and Exploded Diagrams
• C298MAIN Board Circuit Diagram
TABLE OF CONTENTS:
Epson 880 Service Manual – PDF DOWNLOAD
PRODUCT DESCRIPTION 9
11 FEATURES 10
12 SPECIFICATIONS 11
121 Physical Specification 11
122 Printing Specification 11
123 Paper Feeding 13
124 Input Data Buffer 13
125 Electric Specification 13
126 Environmental Condition 14
127 Reliability 14
128 Safety Approvals 14
129 Acoustic Noise 14
1210 CE Marking 14
13 INTERFACE 15
131 Parallel Interface (Forward Channel) 15
132 Parallel Interface (Reserve Channel) 18
133 USB Interface 19
134 Prevention of Data Transfer Time-out 20
135 Interface Selection 20
136 IEEE12844 Protocol 20
14 OPERATOR CONTROLS 21
141 Operating Switch 21
142 Control Panel 21
1421 Switches 21
1422 Indicators 21
143 Panel Functions 22
144 Printer Condition and Panel Status 23
145 Printer Initialization 23
146 Errors 24
15 PAPER 25
151 Paper Handling 25
152 Paper Specification 25
1521 Cut Sheet 25
1522 Transparency, Glossy Paper 25
1523 Envelope 25
1524 Index Card 26
153 Printing Area 27
1531 Cut Sheet 27
1532 Envelopes 28
16 INK CARTRIDGE 28
161 Black Ink Cartridge 28
162 Color Ink Cartridge 29
Operating Principles 30
21 Overview 31
211 Printer Mechanism 31
2111 Printing Mechanism 32
2112 Printing Process 33
2113 Carriage Mechanism 34
2114 Platen Gap (PG) Adjust Mechanism 35
2115 Paper Feeding Mechanism 35
2116 CR Lock Mechanism 37
2117 Paper Loading Mechanism 38
2118 Pump Mechanism 40
2119 Capping Mechanism 41
22 Electrical Circuit Operating Principles 42
221 C378PSB/PSE Board 43
222 C378MAIN Board 45
2221 Printhead Driver Circuit 47
2222 Reset Circuit 48
2223 CR Motor Driver Circuit 49
2224 PF Motor Driver Circuit 51
2225 ASF/Pump Motor Driver Circuit 52
2226 EEPROM Control Circuit 52
2227 Sensor Circuit 53
Troubleshooting 55
31 Overview 56
311 Troubleshooting with LED Error Indications 57
3111 Remedies for Paper Out Error 59
3112 Remedies for the Paper Jam Error 61
3113 Remedies for No I/C and Ink Out Errors 62
3114 Remedies for the Maintenance Error 64
3115 Remedies for Fatal Error 65
312 Isolating the Faulty Part on the Power Supply Board 68
313 Isolating the Faulty Part according to the Phenomenon 70
Disassembly and Assembly 76
41 Overview 77
411 Precautions for Disassembling the Printer 77
412 Tools 78
413 Specification for Screws 79
414 Service Checks After Repair 80
42 Disassembly Procedures 81
421 Removing the Upper Housing 82
422 Removing the Circuit Board Assembly 83
423 Removing the Operation Panel 85
424 Disassembling the Printer Mechanism 86
4241 Removing the Printhead Unit 87
4242 Removing the Waste Ink Absorber Tray Assembly 89
4243 Removing the Ink System Assembly 91
4244 Removing the CR Motor Assembly 94
4245 Removing the DE Assembly (include the ASF/Pump motor) 95
4246 Removing the ASF Assembly 99
4247 Removing the CR Assembly105
4248 Removing the PF Roller Assembly and Paper Eject Roller Assembly110
4249 Remove the PF Motor Assembly114
42410 Removing the PE Detector Assembly115
51 Overview117
511 Required Adjustments117
512 Adjustment Tools Required118
52 Adjustment119
521 Parallelism Adjustment119
522 Backlash value Adjustment for PF motor122
523 Adjustment by Adjustment Program125
524 Adjustment Program Installation Procedure126
525 Adjustment Program Initial Setting menu126
53 Sequential Repair Service Program feature127
531 Feature127
532 Printhead removal128
533 Printhead replacement130
534 Main board replacement134
535 CR unit replacement or removal135
536 CR motor replacement or removal135
537 Printer mechanism replacement136
538 Waste ink pad replacement136
54 Individual service adjustment program feature137
541 Head cleaning function137
542 Initial ink charge function137
543 Protection counter check/reset138
544 EEPROM check function138
545 Refurbishment for DOA139
546 A4 Check pattern140
Adjustment116
Maintenance142
61 Overview143
611 Cleaning143
612 Service Maintenance143
613 Lubrication144
Appendix152
71 Connector Summary153
711 Connector Pin Assignment153
712 EEPROM ADDRESS MAP156
72 Circuit Board Component Layout162
73 Exploded Diagrams and Parts List for Stylus COLOR 880165
74 Circuit Diagram176
S.M 26/2/2025
