Heater Lamp - Sharp FO 4400 - B/W Laser - All-in-One Service Manual

FO-4400U
FO-CS1
21
Fusing unit (2/2)

Heater Lamp

Voltage Mark
(b)
(a)
(c)
Thermostat (TS1)
Fig. A Backside of
Fusing Unit
Harness
Thermistor (TH1)
Fig. 21
8. Remove the lamp holder. (2 screws)
9. Pull out the Heater Lamp (H1).
NOTE:
•
Use care not to touch the lamp surface with bare hands.
•
Position the voltage mark on the gear side when rein-
stalling the lamp.
10. Remove the drive gear from the Heat Roller.
11. Slide the Heat Roller to the right (a), swing out the left end (b),
and then slide the roller in the direction of (c) and pull it out.
NOTE:
•
To prevent the surface of the Heat Roller from being
scratched by the Fusing Separators, lift the separators
when removing and reinstalling the roller. Use utmost
care not to damage the surface of the roller.
12. Remove the Fusing Paper Separators. (At 4 places)
13. Remove the Thermistor (TH1). (1 screw)
NOTE:
•
Route the harness as shown in Fig. A when reinstalling
the Thermistor (TH1).
14. Remove the Thermostat (TS1). (2 screws)
3 – 26