Canon NP6012F Service Manual page 36

H. Separation (step 6)
\
Static eliminator
Pressure roller
dleaning roller
Figure 2-112 Figure 2-113
Copy paper is separated from the photo-
sensitive drum using the rigidity of the paper.
Thin paper, however, has low rigidity and
can wrap around the photosensitive drum.
To prevent such a problem, the copier
applies a positive voltage to the separation
static eliminator to weaken the static attrac-
tion between the photosensitive drum and
copy paper, thereby facilitating separation.
After transfer, the toner image is fixed to
the paper while the copy paper moves
through the fixing film and the pressure
roller.
The fixing film has a seamless construc-
tion and is made of special material so that
melting toner will not stick to the film-fur-
ther, the surface of the pressure roller is
cleaned by a cleaning roller.
I. Fixing (step 7)
Theryistor
The 'fixing heater is a flat heater and
heats only the area where the fixing film
comes into contact; this design eliminates
the need for warm-up time.
The temperature of the fixing heater is
monitored by the thermistor (THl) located
more or less at the center of the fixing heater
and serves to make sure that the heater is
controlled to a specific temperature.
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COPYRIGHT 0 1995 CANONINC
CANON NP6012lNP6012FINP6212 AEV!l SEPT.1995 PAlNTEDINJAPAN(IMPRIM~AUYPON)