Rev. B
Troubleshooting 4-3
TM-U200D/U200PD Technical Manual
Troubleshooting Flowchart
If the source of a problem is not clear, use the flowchart below to find and replace a defective
component. Normally, servicing should be performed by component replacement. Repairs of
the PCBs and other components should be performed only by technicians.
Execute the self-test
Start
Power on
Is POWER
Is PAPER
Is paper roll in
Is self-test normal?
Is printout
END
Host sends print data
Replace or insert paper roll.
1
1
3
3
No
Yes
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
LED lit?
OUT LED lit?
near-end condition
or not inserted?
normal?
2
2
4
4
5
5
loading executed?
Semi-automatic
No
Yes
Is ERROR
LED flashing?
Take the steps
described in Error types
and countermeasures.
END
Summary of Contents for TM U200D - B/W Dot-matrix Printer
Page 2: ...technical manual TM U200D U200PD EPSON English 4005680 ...
Page 4: ...EPSON SEIKO EPSON CORPORATION Printed in Japan E9608130 0000SE ...
Page 145: ...Rev B Disassembly Assembly and Adjustment 5 49 TM U200D U200PD Technical Manual ...
Page 146: ...5 50 Disassembly Assembly and Adjustment Rev B ...
Page 147: ...Rev B Disassembly Assembly and Adjustment 5 51 TM U200D U200PD Technical Manual ...
Page 148: ...5 52 Disassembly Assembly and Adjustment Rev B ...
Page 154: ...Appendix A 6 Rev B Main Circuit Board A Parts Layout ...
Page 155: ...Rev B Appendix A 7 TM U200D U200PD Technical Manual Main Circuit Board C Parts Layout ...
Page 156: ...Appendix A 8 Rev B RS 232 Serial Interface Circuit Board Parts Layout ...
Page 169: ...Rev B A 21 TM U200D U200PD Technical Manual Case Unit Lubrication Points Diagram ...
