Fuser Unit - Toshiba e-STUDIO 5540C Service Manual

3.15 Fuser Unit

3.15.1 General Description
Toner is fused by applying heat and pressure on the transferred image on the paper which is trans-
ported to the fuser unit. The paper is then transported to the bridge unit. The fuser unit consists of the
fuser belt, fuser roller, heat pipe roller, IH coil, pressure roller, separation fingers, separation plate,
thermopiles, thermistors, thermostats, sensor etc.
The fuser roller and pressure roller in the fuser unit are driven by the fuser motor.
Pressure roller contact /
release clutch
Heat pipe roller
Fuser belt
edge thermistor
Fuser belt
thermostat
Fuser belt
thermopile
Fuser belt
Fuser roller
Fuser belt guide
Pressure roller heater lamp
Pressure roller
IH board cooling fan-1
IH board cooling fan-2
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
OUTLINE OF THE MACHINE
Fuser belt rotation detection sensor
Rotor
Separation
plate
Separation
fingers
Pressure roller thermistor
( center / side )
Pressure roller edge thermistor
( Front Side )
IH board
Fig. 3-53
Pressure roller thermostat
( center / side )
Pressure roller contact /
release detection sensor
Fuser motor
IH coil
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Fuser unit gear
( Rear Side )
( Rear Side )
Exit paper cooling fan ( rear )