Xerox WorkCentre 220

Detection Timing

• The temperature detected by the Thermistor remains higher than 235 °C for a predetermined period of time while the fusing temperature control is being provided.

Relevant Electrical Parts

• Fusing Unit Thermistor (TH1)
• Fusing Roller Heater Lamp (H1)
• Controller/Mechanical Control Board (PWB-P)
• Thermostat (TS1) Power Unit (PU1)

Troubleshooting Procedures

Step	Action	Control Signal/ Location
1	Replace Thermistor (TH1).
2	Replace Fusing Roller Heater Lamp (H1).
3	Replace Thermostat (TS1).
4	Replace Fusing Unit.
5	Replace Controller/Mechanical Control Board (PWB-P).
6	Replace Power Unit (PU1).