Epson C70, C80 printers Service Manual and Parts List

$9.99
Epson C70, C80 printers Service Manual and Parts List
   Click to enlarge
      

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

 

I want to:

Any questions about this product?

SEND US REQUEST by filling the form below.





Step 1
ADD TO CART
Step 2
CHECKOUT
Select payment method.
Step 3
Confirm the order.


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

  Gr Kennedy 2020-05-31 10:34:19  
  I don't like throwing something (a printer in this case) away and consuming our earth's resources (buying a new printer) just because Epson make it difficult for me to avoid doing this. I wish Epson would make products that can be maintained by the product owner and this way contributes to the well being of our planet. This reset utility worked 'as described' and now, having cleaned my ink pads, I can get more value from the printer I already own. Thanks for this reset software.
  ramesh eete 2023-02-10 07:45:41  
  Epson L5190 model is the best printer colour print and black print is good quality - good program!
  cyril beckley 2020-11-25 14:07:48  
  Fine! Reset worked!
  Ross Dell 2010-10-19 06:15:32  
  Was very sceptical about the whole process - but one word sums it up - "BRILLIANT" No hesitation in recommending the WIC reset utility process.
  Jean Carivenc 2015-05-08 15:46:00  
  I did not use the printer Epson Pro 4900 for a long time and even after 5 or 6 powerful manual cleanings for all inks the paper was staying completely white !! I did the Ink Charge and cleaning process described in the soft and after that the machine is working 100% fine In France there is no way to get this software except if you work for Epson !!!
  alejandro carrillo 2009-05-08 21:22:35  
  me pueden ayudar con el reset de CX7700, CX7800 Service
Write review