Epson Stylus Color 980 - Operating Principles

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CHAPTER

2

OPERATING PRINCIPLES

Table of Contents

Default Chapter5
- Table of Contents5
Product Description Features9
Specifications10
- Printing Specifications10
- Options and Consumable Products13
- Paper Specifications15
- Printable Area17
- Ink Cartridge Specifications19
  - Black Ink Cartridge19
  - Color Ink Cartridge20
- Electrical Specifications21
- Environmental Condition21
- Reliability22
- Safety Approvals22
- Acoustic Noise22
- CE Marking (220 ~ 240 V Version)22
- Physical Specifications22
Interface23
- Parallel Interface (Forward Channel)23
- Parallel Interface (Reverse Channel)26
- USB Interface28
- Optional Interface28
- Printer Language and Emulation31
- Prevention Hosts from Data Transfer Time-Out31
- Auto Interface Selection31
  - IEEE 1284.4 Protocol32
Control Panel Operation33
- Indicators (Leds)33
- Panel Functions34
  - Printer Setting Mode34
  - Special Setting Mode36
- Printer Condition and Panel Status37
Error Status38
- Ink out38
- Paper out38
- Paper Jam38
- No Ink Cartridge38
- Maintenance Request38
- Fatal Errors38
- Double Feed Errors38
Printer Initialization39
Component Layout40
- Printer Mechanism40
- C380 Main Board41
- C265 PSB/PSE Board43
- C265 PNL Board44
- C265 Relay Board44
Operating Principles45
Overview46
Printer Mechanism Operating Principles46
- Carriage Mechanism48
- Printing Mechanism50
- Paper Load Mechanism51
- Paper Feed Mechanism53
- Pump/Asf Switch Mechanism54
- Pump / Carriage Lock / Head Cleaner Mechanism56
Electrical Circuit Operation Principles58
- C265 PSB/PSE Power Supply Board58
- C380Main Board61
- CR Motor Driver Circuit69
- PF Motor Driver Circuit71
- Pump/Asf Motor Driver Circuit73
- Printhead Driver Circuit74
- Cooling Fan Driver Circuit76
- ASF Solenoid Driver Circuit78
- EEPROM Control Driver Circuit79
Troubleshooting Overview81
- Troubleshooting with LED Error Indications82
- Isolating the Faulty Part on the Power Supply Board92
- Isolating the Faulty Part According to the Phenomenon94
Disassembly and Assembly103
Overview104
- Precautions for Disassembling the Printer104
Disassembly Procedures106
- Upper Case and Control Panel Removal108
- Printer Mechanism Removal109
- C380 Main Board Unit Removal110
- Relay Board and Cooling Fan Removal111
- Shield Plate on the C380 Main Board Removal112
- C265 PSB/PSE Board Removal113
- Printer Mechanism Disassembly115
- ASF Disassembly120
Adjustment133
Overview134
- Conditions for each Adjustment134
Adjustments137
- Preliminary Operation137
- Head Actuator Voltage Input139
- Head ID Retrieval140
- Head Angular Adjustment140
- Bi-Directional Adjustment141
- USB ID Input144
- USB ID Retrieval145
- Printhead Cleaning Using the Program146
- Initial Ink Charge147
- Refurbishment for DOA147
- Indication of the Counter Value for the Waste Ink Pad148
- Fan Check150
- Paper Gap Adjustment151
Maintenance Overview155
- Maintenance155
  - Cleaning the Printhead156
  - Maintenance Request Error157
Lubrication and Adhesion158
- Lubricating the Carriage Guide Shaft159
Appendix Connector Summary165
Eeprom Address Map169
Component Layout173
Parts List177
Exploded Diagrams180
- Epson Stylus Color181
Circuit Diagrams188

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