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COPYING PROCESS
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
II. AUXILIARY PROCESS
A. Blank Exposure
Blank exposure is executed to remove the drum
surface potential of the non-image area that occurs
as a result of the difference among copy sizes or
when making copies in Reduce mode.
The light from the pre-exposure lamp is re-
flected by the reflecting plate and directed to the
photosensitive drum.
The non-image area between sheets of copy
paper is created by reflecting the light from the pre-
exposure lamp by a separate reflecting plate,
exposing the whole area.
Figure 2-201
Pre-exposure lamp
Blank exposure
light path
Reflecting
plates
No. 6 mirror
Reflecting plate
Pre-exposure
light path
Blank exposure light path
(for area between sheets)
Photosensitive drum
Shutter