Separation (Step 6) - Canon GP200 Service Manual

2. COPYING PROCESS
Reference:
If the image on the photosensitive drum was
not fully transferred to the copy paper
because of a jam, toner can stick to the
transfer charging roller.
The GP215/GP200 uses negative transfer
voltage during initial rotation and last rotation
to return any such toner (charged to a nega-
tive potential and sticking to the transfer
roller) to the photosensitive drum.
Transfer roller
Figure 2-112
2–6
COPYRIGHT © 1996 CANON INC.
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H. Separation (step 6)
The GP215/200 takes advantage of the rigidi-
ty of copy paper to separate paper from the drum
(curvature separation). Since thin paper has little
rigidity,it tends to remain wrapping on the drum.
To prevent such a problem, a negative voltage is
applied to the separation static eliminator, thereby
weakening the static bond between drum and
copy paper for better separation.
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
Transfer roller
Static eliminator
Figure 2-113