Table Of Contents - Epson FX-980 Service Manual

EPSON FX-980
Product Description
Overview ....................................................................................................... 9
Specifications .............................................................................................. 9
Features ................................................................................................... 9
Accessories ............................................................................................ 10
Hardware Specifications ........................................................................... 11
Printing Specifications ............................................................................ 11
Paper Handling ....................................................................................... 12
Paper Specifications ............................................................................... 14
Ribbon Specifications ............................................................................. 17
Electrical Specifications .......................................................................... 17
Reliability ................................................................................................ 17
Safety Approvals .................................................................................... 17
CE Marking ............................................................................................. 18
Physical Specifications ........................................................................... 18
Firmware Specifications ........................................................................... 19
Control Codes and Fonts ....................................................................... 19
Printable Area ......................................................................................... 20
Interface Specifications .......................................................................... 20
Parallel Interface (Forward Channel) .................................................. 20
Parallel Interface (Reverse Channel) ................................................. 21
Serial Interface ................................................................................... 21
Operation Instruction ................................................................................ 23
Errors ...................................................................................................... 25
Bi-directional Adjustment Function ......................................................... 25
EEPROM Initialization ............................................................................ 26
Main Components ..................................................................................... 27
C276 Main Board ................................................................................... 27
C276 PNL Board .................................................................................... 27
Contents
Operating Principles
Printer Mechanism Operations ................................................................ 29
Power Supply Operation ........................................................................... 29
Control Circuit ........................................................................................... 30
Overview of the Control Circuit Operation .............................................. 30
System Reset Circuit .............................................................................. 32
Printhead Driver Circuit .......................................................................... 33
CR Motor Driver Circuit .......................................................................... 33
PF Motor Driver Circuit .......................................................................... 35
EEPROM Control Circuit ........................................................................ 35
Sensor Circuit ........................................................................................ 36
Disassembly and Assembly
Overview .................................................................................................... 38
Printer Disassembly and Assembly ....................................................... 38
Adjustment
Overview .................................................................................................... 45
Pre-operation for the Adjustment Program ............................................ 45
Bi-D Adjustment ..................................................................................... 47
TPE Level Reset .................................................................................... 48
Writing the User-characteristic Data ...................................................... 49
Troubleshooting
Overview .................................................................................................... 52
Troubleshooting Information ................................................................... 52
Printhead ................................................................................................ 52
Sensors .................................................................................................. 52
Revision A
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