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

FORMAT: High resolution PDF document!
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!

  fouzi fouzi 2010-04-24 03:13:02  
  Thank you. for the program. It worked on TX106 printer. Reset waste ink counter in few minutes. Not go to epson customer service. Good.
  John Safranek 2010-03-29 19:19:29  
  Does NOT contain ANY instructions for replacing the waste ink pad cartridges!!!
  angga sri 2006-11-28 06:47:39  
  be epson maniac. because epson is the best. and all my product always use epson. Thank you!
  Ross Beale 2008-10-01 05:33:22  
  Thank you
  Howard Lyttle 2013-09-01 00:45:42  
  I have an epson artisan 710 and using the wic reset couldnt have been easier. I received the reset key almost instantaniously via email and even an idiot could have been able to use it. Excellent service and excellent utility. I would well recommend as it saves an expensive trip to the epson service centre. Well done. Howard Lyttle, UK
  Riccardo Ritteri 2019-05-06 23:19:15  
  The license.exe utility doesn't recognize the printer XP-441.

Answer: Change USB Cable
  Boudjemaa Saadi 2017-01-25 00:40:40  
  Thank you for all your help. I got my printer printing again. I had trouble with my OS as I have Linux but it worked fine on my mac. Thanks again
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