Primary Charging (Step 2); Image Exposure (Step 3) - Canon NP6330 Service Manual

CHAPTER 1 GENERAL DESCRIPTION
D. Primary Charging (step 2)
The negative corona charging by the primary charging assembly charges the
surface of the drum to a uniform negative potential to ensure primary potential.
Grid bias is applied to the grid to make sure that the surface of the drum is uniformly
charged.
E. Image Exposure (step 3)
The optical image of the original is projected on the photosensitive drum to
neutralize the charges in the light areas.
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Figure 1-606
Dark area
Figure 1-607
COPYRIGHT © 1997 CANON INC.
Optical image
Light area
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)