Canon PC300 Service Manual page 25

Step 5 Separation
Static eliminator
Figure 2-11
Copy paper is separated from the photo-
sensitive drum using the rigidity of the paper.
Thin paper, with little rigidity, can wrap
around the drum. To prevent this, a ground-
ed static eliminator is provided to weaken
the static adhesion between photosensitive
drum and copy paper, thereby encouraging
separation.
COPYRIGHT © 1934 CANON INC.
COPYING PROCESS
Step 6 Fixing
Fixing film Fixing heater
Copy paper
Pressure roller
Figure 2-12
After receiving images, the copy paper
moves between fixing film and pressure
roller so that the toner images are fused into
the fibers of the paper.
The fixing film is made of special materi-
al and has a seamless construction; it is
designed so that melting toner will not stick
to the film, making a cleaning mechanism for
the fixing assembly unnecessary.
The fixing heater is plane-shaped, and
heated only where the fixing film comes into
contact, eliminating the need for warm-up
time.
The temperature of the fixing heater is
monitored by the thermistor (TH1) attached
to the center of the fixing heater so that the
heater is controlled to a specified tempera-
ture at all times.
CANON PC300/320/325, FC710'290 REV.O JULY 1904 PRINTED IN JAPAN (MPRIME AU JAPON) 2-5