Download Epson C70, C80 printers Service Manual and Parts List

From this article you can download Epson C70, C80 printer Service Manual in PDF format. This is a great handbook from the Service Manual Shop.

Epson C70, C80 printer Service Repair Manuals is a workshop book published by Epson support center or a specialized publishing company that contains steps and specifications for the maintenance, repair, recover, restore, and how to fix all error alert of a specific Epson C70, C80 Printer.

Download  Epson C70, C80  printer Service Repair Manuals

Epson C70, C80 printer Service Repair Manuals may include Disassembly and Reassembly, Alignment, Troubleshooting guides, Exploded Views, Parts List, System Diagram, Circuit diagram…

Epson C70, C80 printer Service Repair Instruction manuals is frequently useful for the Service Center of Epson.

Compatible Models : Epson C70, C80

Detail about Epson C70, C80 printers Service Manual and Parts List

This Service 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.





1.2.1 Physical Specification

1.2.2 Printing Specification

1.2.3 Paper Feeding

1.2.4 Input Data Buffer

1.2.5 Electric Specification

1.2.6 Environmental Condition

1.2.7 Reliability

1.2.8 Safety Approvals

1.2.9 Acoustic Noise

1.2.10 CE Marking


1.3.1 Parallel Interface

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

1.3.7 Printer Language and Emulation Control codes EPSON D4 control channel commands


1.4.1 Operate Switch

1.4.2 Control Panel Switches Indicators

1.4.3 Panel Functions

1.4.4 Printer Condition and Panel Status

1.4.5 Printer setting mode (Stylus COLOR C80 only) Default setting mode Print head alignment mode

1.4.6 Printer Initialization

1.4.7 Errors


1.5.1 Paper Handling

1.5.2 Paper Specification Cut Sheet Envelope Index Card EPSON special media

1.5.3 Printing Area Cut Sheet Envelopes


1.6.1 Black Ink Cartridge

1.6.2 Color Ink Cartridge

* Chapter 2 Operating Principles

2.1 Overview

2.1.1 Printer Mechanism

2.1.2 Printhead Printing Process Printing Method

2.1.3 Carriage Mechanism

2.1.4 Paper Feeding Mechanism

2.1.5 Paper Loading Mechanism (ASF Unit)

2.1.6 Ink System Mechanism Pump Unit & Wiper mechanism Capping Mechanism

2.2 Electrical Circuit Operating Principles .. 512.2.1 C424 PSB/PSE board

2.2.2 C424 MAIN-B Board Main elements Printhead Driver Circuit CR / PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit Reset Circuit EEPROM Control Circuit Sensor Circuit

* Chapter 3 Troubleshooting

3.1 Overview

3.1.1 Communication Error

3.1.2 Too Late Throughput

3.1.3 Status Monitor does not operate

3.1.4 Troubleshooting with LED Error Indications Remedy when a paper out, double feed or paper jam error occurs Remedies for No I/C and Ink Out Errors Countermeasures when an Ink Low indication appears Remedies for the Maintenance Error Remedies for Fatal Error

3.1.5 Isolating the Faulty Part on the Power Supply Board

3.1.6 Isolating the Faulty Part according to the Phenomenon PF Motor Driver Abnormal 1 ASF Driver Abnormal 1 Unexpected Ink Out Error 1 (During Print Operation) PF Motor Driver Abnormal 2 Carriage Operation Abnormal Dot Missing 1 Dot Missing 2 Dot Missing 3 Repair Handling Failure ASF Driver Abnormal 2 CR Motor Operation Abnormal

* Chapter 4 Disassembly and Assembly

4.1 Overview

4.1.1 Precautions

4.1.2 Tools

4.1.3 Work Completion Check

4.1.4 Screws

4.2 Disassembly

4.2.1 Housing Removal Printer Cover Removal Stacker Assembly Removal Upper Case Removal Rear Cover Removal Middle Housing Removal Printer Mechanism Unit Removal Waste Ink Pad Removal

4.2.2 ASF Unit Removal

4.2.3 Main Board Assembly Removal

4.2.4 Power Supply Board Assembly Removal

4.2.5 Print Head / Ink System Unit Removal

4.2.6 Carriage Unit / CR Guide Shaft Removal

4.2.7 Front Paper Guide Removal

4.2.8 EJ Roller Unit Removal

4.2.9 Motor Removal PF Motor Removal CR Motor Removal

4.2.10 PE Actuator Removal Encoder Unit Board Removal

4.2.11 PF Roller Unit Removal

4.2.12 ASF Unit Disassembly ASF Assembly Points

4.2.13 Rotary Encoder Removal

* Chapter 5 Adjustment

5.1 Overview

5.1.1 Conditions for Each Adjustment

5.2 Adjustment

5.2.1 Setup the Adjustment Program

5.2.2 Head ID Input

5.2.3 Ink Charge

5.2.4 Head Angle Adjustment

5.2.5 Bi-D Adjustment

5.2.6 PF Adjustment

5.2.7 USB ID Readout (Checking) Possible to Readout the Original USB ID (CASE 1) Impossible to Readout the Original USB ID (CASE 2)

5.2.8 EEPROM Initialization

5.2.9 Platen Gap Adjustment (Mechanism Adjustment)

5.2.10 Head Cleaning Operation

5.2.11 Protection Counter Clear (and Check)

5.2.12 Top Margin Adjustment

5.2.13 First Dot Position Adjustment

* Chapter 6 Maintenance

6.1 Overview

6.1.1 Cleaning

6.1.2 Service Maintenance

6.1.3 Lubrication and Adhesion

6.1.4 Lubrication the Carriage Guide Shaft

* Chapter 7 Appendix

7.1 Connector Summary

7.1.1 Major Component Unit

7.1.2 EEPROM Address Map

7.1.3 CSIC Address Map

7.2 Component Layout

7.3 Exploded Diagram

7.4 Parts List

7.5 Electrical Circuits

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This technical engineers workshop restore manual will help you fix every conditions you may have with a faulty.

The service manual has detailed problem diagnosis sections and great troubleshooting instructions . With technical circuit diagrams and also exploded assembly figures , these guides are the technical engineers lifeline.

Made available in the common PDF format for easy and easy access and then download.