Revision A
6
Contents
Product Description
Specifications
................................................................................................. 8
Features ................................................................................................................ 8
Accessories .......................................................................................................... 8
Hardware Specifications
................................................................................. 9
Printing Method ..................................................................................................... 9
Printing Specifications ........................................................................................... 9
Paper Handling ...................................................................................................... 9
Paper Specifications ............................................................................................ 11
Ribbon Specificatio .............................................................................................. 11
Electrical Specifications ....................................................................................... 11
Environtal Conditions .......................................................................................... 11
Reliability ............................................................................................................. 11
Safety Approvals ................................................................................................. 12
CE Marking .......................................................................................................... 12
Physical Specifications ........................................................................................ 12
Firmware Specifications
............................................................................... 13
Control Codes and Fonts .................................................................................... 13
Interface Specifications ....................................................................................... 15
Parallel Interface (Forward Channel) .................................................. 15
Parallel Interface (Reverse Channel) ................................................. 15
Operation Instruction
.................................................................................... 16
Errors ................................................................................................................... 17
EEPROM Initialization ......................................................................................... 18
Main Components
......................................................................................... 19
C273 Main Board ................................................................................................ 20
Operating Principles
Printer Mechanism Operations
...................................................................... 22
Power Supply Operation
............................................................................... 22
Control Circuit
.............................................................................................. 23
Overview of Control Circuit Operation ................................................................. 23
System Reset Circuit ........................................................................................... 25
Printhead Driver Circuit ....................................................................................... 26
CR Motor Driver Circuit ....................................................................................... 27
PF Motor Driver Circuit ....................................................................................... 29
EEPROM Control Circuit ..................................................................................... 29
Sensor Circuits ................................................................................................... 30
Disassembly and Assembly
Adjustment
Overview
...................................................................................................... 34
Pre-operation for the Adjustment Program ......................................................... 34
Bi-D Adjustment .................................................................................................. 36
TPE Level Reset ................................................................................................. 37
Writing the User-characteristic Data ................................................................... 38
Troubleshooting
Overview
...................................................................................................... 41
Troubleshooting Information
........................................................................ 41
Printhead ............................................................................................................. 41
Sensors ............................................................................................................... 41
Motors ................................................................................................................. 41
The Error codes with Indicators and Buzzer ....................................................... 41
Unit Level Troubleshooting
........................................................................... 42
Repairing the C166 PSB/PSE Board
.............................................................. 42
Repairing the C273 Main Board
..................................................................... 42
Repairing the Printer Mechanism
.................................................................. 44
Maintenance
Appendix
EEPROM Address Map
................................................................................. 48
Connector Summary
..................................................................................... 51
Component Layout
....................................................................................... 52
Circuit Diagram
............................................................................................ 54
Содержание 2080 - LQ B/W Dot-matrix Printer
Страница 1: ...EPSONLQ 2080 Impact Serial Dot Matrix Printer SEDM98002 ...
Страница 5: ...Revision Status Revision Issued Date Description A March 08 1999 First release ...
Страница 7: ... PRODUCTDESCRIPTION ...
Страница 21: ... OPERATINGPRINCIPLES ...
Страница 31: ... DISASSEMBLYANDASSEMBLY ...
Страница 32: ...LQ 2080 Revision A Disassembly and Assembly 32 See the LQ 2070 Service Manual ...
Страница 33: ... ADJUSTMENT ...
Страница 40: ... TROUBLESHOOTING ...
Страница 45: ... MAINTENANCE ...
Страница 46: ...LQ 2080 Revision A Maintenance 46 See the LQ 2070 Service Manual ...
Страница 47: ... APPENDIX ...
Страница 53: ...LQ 2080 Revision A Appendix Component Layout 53 Figure 7 2 C273 Main Board Component Layout Soldering Side ...
Страница 55: ......