Epson C70, C80 printers Service Manual and Parts List

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Epson C70, C80 printers Service Manual and Parts List
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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.

CONTENTS

Chapter 1 PRODUCT DESCRIPTION
1.1 FEATURES
1.2 SPECIFICATIONS
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 INTERFACE
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
1.3.7.1 Control codes
1.3.7.2 EPSON D4 control channel commands
1.4 OPERATOR CONTROLS
1.4.1 Operate Switch
1.4.2 Control Panel
1.4.2.1 Switches
1.4.2.2 Indicators
1.4.3 Panel Functions
1.4.4 Printer Condition and Panel Status
1.4.5 Printer setting mode (Stylus COLOR C80 only)
1.4.5.1 Default setting mode
1.4.5.2 Print head alignment mode
1.4.6 Printer Initialization
1.4.7 Errors
1.5 PAPER
1.5.1 Paper Handling
1.5.2 Paper Specification
1.5.2.1 Cut Sheet
1.5.2.2 Envelope
1.5.2.3 Index Card
1.5.2.4 EPSON special media
1.5.3 Printing Area
1.5.3.1 Cut Sheet
1.5.3.2 Envelopes
1.6 INK CARTRIDGE
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
2.1.2.1 Printing Process
2.1.2.2 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
2.1.6.1 Pump Unit & Wiper mechanism
2.1.6.2 Capping Mechanism
2.2 Electrical Circuit Operating Principles .. 512.2.1 C424 PSB/PSE board
2.2.2 C424 MAIN-B Board
2.2.2.1 Main elements
2.2.2.2 Printhead Driver Circuit
2.2.2.3 CR / PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit
2.2.2.4 Reset Circuit
2.2.2.5 EEPROM Control Circuit
2.2.2.6 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
3.1.4.1 Remedy when a paper out, double feed or paper jam error occurs
3.1.4.2 Remedies for No I/C and Ink Out Errors
3.1.4.3 Countermeasures when an Ink Low indication appears
3.1.4.4 Remedies for the Maintenance Error
3.1.4.5 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
3.1.6.1 PF Motor Driver Abnormal 1
3.1.6.2 ASF Driver Abnormal 1
3.1.6.3 Unexpected Ink Out Error 1 (During Print Operation)
3.1.6.4 PF Motor Driver Abnormal 2
3.1.6.5 Carriage Operation Abnormal
3.1.6.6 Dot Missing 1
3.1.6.7 Dot Missing 2
3.1.6.8 Dot Missing 3
3.1.6.9 Repair Handling Failure
3.1.6.10 ASF Driver Abnormal 2
3.1.6.11 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
4.2.1.1 Printer Cover Removal
4.2.1.2 Stacker Assembly Removal
4.2.1.3 Upper Case Removal
4.2.1.4 Rear Cover Removal
4.2.1.5 Middle Housing Removal
4.2.1.6 Printer Mechanism Unit Removal
4.2.1.7 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
4.2.9.1 PF Motor Removal
4.2.9.2 CR Motor Removal
4.2.10 PE Actuator Removal
4.2.10.1 Encoder Unit Board Removal
4.2.11 PF Roller Unit Removal
4.2.12 ASF Unit Disassembly
4.2.12.1 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)
5.2.7.1 Possible to Readout the Original USB ID (CASE 1)
5.2.7.2 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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ZIP archive: 26 934 kB

 

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We are in business since 2002 and do our best to give our customers perfect service!

  Rafal Monka 2010-08-27 21:07:53  
  Thanks ,Thanks ,Thanks Everything is OK :) .You are the best Thanks again
  vitaliy nikiforov 2007-04-18 05:42:00  
  I just wanted to say thanks for the info from your site
  alaa saedy 2013-03-04 19:10:42  
  Hi thank you so much for help more people for there job and help me about rest my printer and other helps
  Giovanni Inserra 2011-02-06 21:57:52  
  Semplicemente perfetto, tutto risolto in 2 minuti.
  ray methvin 2005-03-03 16:28:39  
  ok
  Gary Ouellet 2011-12-01 05:23:29  
  Thanks, it worked exactly as the instructions provided. The only matter now is to get a kit for the waste ink. No wonder the ink is so expensive - so much goes to waste. Where can I get a kit to store the wasted ink? Thanks again, Gary
  Anonymous 2019-01-05 01:10:04  
  I was skeptical in using this tool, but to my surprise and delight it worked like a charm using the serial key (trial) for a quick 10%reset of my Epson Artisan 830. Yes, meaning that if you don't buy the key, it will only reset your printer 10% of the way. My counters are now at 89.99% and 90.00%. It states these counters will reach maximum soon. I only wanted to use the fax option of this printer since I bought a new printer with fill tanks that hasn't arrived yet. This product worked perfectly. I wish I knew about it this software tool before buying a new printer......
  lamine lamine 2010-12-03 18:29:51  
  thank you for Ihtmacm
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