Service manual

PagePro 1200 Series Troubleshooting
96
Is there electrical conduction across con-
nectors 1 and 3 of the Fusing Unit?
→
No
Replace the Fusing Unit.Or, replace the Heater Lamp
(H1) or Thermostat (TS1).
→
Yes
Replace the Power Unit (PU1) or Controller Board.
Cause Remedy
Does the error message appear after the
printer has completed warming up?
→
Yes
Replace the Thermistor (TH1) or Fusing Unit.
Replace the Controller Board.
↓
No
Is the Fusing Unit warm?
→
Yes
Replace the Thermistor (TH1) or Fusing Unit.
Replace the Controller Board.
↓
No
Is there electrical conduction across con-
nectors 1 and 3 of the Fusing Unit?
→
No
Replace the Fusing Unit.Or, replace the Heater Lamp
(H1) or Thermostat (TS1).
→
Yes
Replace the Power Unit (PU1) or Controller Board.
Cause Remedy