Fuser Unit Components - Samsung SCX-8030ND Series Service Manual

2.6.2 Fuser unit components

The Fuser unit includes the following components:
1. Center heater lamp (LAMP1) / Side heater lamp (L
These halogen lamps heat the drum-fuser belt. The c
lamp (LAMP2) are lit alternately to heat the drum-fus
Each heater lamp has its coil in a different location. T
the center, those of the side heater lamp (LAMP2) ar
the drum-fuser belt so that they will not rotate separa
2. Drum-fuser belt
It receives heat from halogen lamp inside and condu
reduces warming up time and mode changing time. T
the surface of the fuser belt is fluorinated. Rigid asse
surface of the fuser belt at nip and is pressed on the
nip between fuser belt and pressure roller. p
3. Pressure roller
The pressure roller is a rubber roller which ensures p
fuser belt. It is driven by external driving mechanism
4. NC sensors
NC sensors detect the surface temperature of the ce
the heater lamps.
5. Thermistor (Center : 0.5mm-1.0mm distance, Side
Thermistors, located at the center and rear end(non i
overheating.
6. Thermostat
These thermostats cut off the power supply to the he
becomes abnormally hot as a result of problems such
These thermostats are used to prevent abnormal ope
replaced (as well as the other damaged parts in the f
Service Manual
SCX-8030/8040 series
2. Product D
p
Description
s
LAMP2)
center heater lamp (LAMP1) and the side heater
ser belt.
The coil of the center heater lamp (LAMP1) is in
re on both sides. The heater lamps are fixed inside of
ately.
cts heat to toner and paper. The thin fuser belt
To prevent the fuser belt from adhering to the toner,
embly located inside the fuser belt contacts inner
pressure roller by springs in order to ensured proper
proper nip width between the pressure roller and
and drives fuser belt by pressure.
nter and the rear end of the fuser belt which controls
e : Contact)
image position), protect the fusing system from
eater lamps by opening the circuit when the fuser belt
h as a NC sensor malfunction.
eration. When the thermostat is triggered, it must be
fuser unit).
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