Troubleshooting Flowchart - Epson TM U200D - B/W Dot-matrix Printer 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.
LED flashing?
Semi-automatic
loading executed?
Execute the self-test
Rev. B
Start
Power on
No
Is POWER
LED lit?
Yes
Yes
Is ERROR
Take the steps
described in Error types
No
and countermeasures.
Yes
Is PAPER
OUT LED lit?
No
No
Yes
TM-U200D/U200PD Technical Manual
1 1
END
near-end condition
or not inserted?
Replace or insert paper roll.
3 3
Is self-test normal?
Host sends print data
Is printout
normal?
Yes
END
Is paper roll in
No
Yes
2 2
No
4 4
Yes
No
5 5
Troubleshooting 4-3