Epson TM U200D - B/W Dot-matrix Printer Technical Manual page 95

TM-U200D/U200PD Technical Manual
Action 3
Action 3
Turn the printer power off.
Does external power
No
supply have proper output
voltage rating? (approx. 40V
in no-load
condition)
Replace external
power supply.
Yes
No
OK?
Yes
END
Replace main PCB
Yes
OK?
No
END
Replace printer mechanism assembly.
END
Rev. B Troubleshooting 4-17