Samsung CLX-9250ND - Page 57

2. Product
d
2.6.2 Fuser unit componen
t
The Fuser unit includes the following components:
1. Center heater lamp (LAMP1) / Side heater lamp (
L
These halogen lamps heat the heat roller. The cente
(LAMP2) are lit alternately to heat the heat roller. E
a
coil of the center heater lamp (LAMP1) is in the cent
e
sides. The heater lamps are fixed inside of the heat
2. Heat roller
The heat roller is a steel roller which conducts heat
g
heat roller in this equipment is a thin roller which en
h
time is shortened.
3. Fuser belt
The fuser belt couples the heat roller with the fuser ro
The
fuser
belt
couples
the
heat
roller
with
the
fuser
ro
roller and paper. The thin fuser belt reduces warmin
fuser belt from adhering to the toner, the surface of t
h
4. Fuser roller
The fuser roller is pressed against the pressure rolle
r
between the fuser roller and pressure roller, the hea
t
belts easier The melted toner is soaked into the pap
belts
easier
.
The
melted
toner
is
soaked
into
the
pap
soft rubber is employed to expand the nip width.
5. Pressure roller
The pressure roller is a rubber roller which ensures
p
roller / fuser belt, and it is pressed on the fuser roller
effectively to the paper.
6. Thermistor (0.5mm-1.0mm distance)
NC sensors detect the surface temperature of the ce
which controls the heater lamps. Thermistors, locat
e
system from overheating.
7. Thermostat
These thermostats cut off the power supply to the h
e
becomes abnormally hot as a result of problems suc
h
are used to prevent abnormal operation. When the t
h
the other damaged parts in the fuser unit).
Service Manual
CLX-9250/9350 series
2-
4
d
escription
t
s
L
AMP2)
r heater lamp (LAMP1) and the side heater lamp
a
ch heater lamp has its coil in a different location. The
e
r, those of the side heater lamp (LAMP2) are on both
roller so that they will not rotate separately.
g
enerated by the heater lamp to the fuser belt. The
h
ances heat conduction, and thus the warming-up
oller. It conducts heat from the heat roller to the fuser
oller.
It
conducts
heat
from
the
heat
roller
to
the
fuser
g up time and mode changing time. To prevent the
h
e fuser belt is fluorinated.
r
with the fuser belt in-between. By this pressure
t
conduction to the paper is enhanced so that toner
per To improve the fusing ability a fuser roller with
per
.
To
improve
the
fusing
ability
,
a
fuser
roller
with
p
roper nip width between the pressure roller and fuser
/ fuser belt by springs in order to fuse toner
nter and the rear end of the fuser belt/ heat roller
e
d at the center and front end, protect the fusing
e
ater lamps by opening the circuit when the fuser belt
h
as a NC sensor malfunction. These thermostats
h
ermostat is triggered, it must be replaced (as well as
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