Xerox MF Series, Technical Document

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T-14
(5) Abnormally low fusing temperature
<Detection Timing>
<Troubleshooting Procedures>
Description
• The temperature detected by the Thermistor remains lower than the set temperature
continuously for a predetermined period of time while the fusing temperature control is
being provided. (The set temperatures are as follows: 140 °C during a print mode at
600 dpi; 110 °C during a print mode at 1200 dpi; 70 °C during the standby mode.)
Relevant Electric Parts
Fusing Unit
Thermistor (TH1)
Fusing Roller Heater Lamp (H1) Controller/Mechanical Control Board (PWB-P)
Thermostat (TS1)
Power Unit (PU1)
Step Action Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electric Parts)
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). – – –