Charging Mechanism; Construction Of The Charging Mechanism - Canon imagerunner C5180 Service Manual

9.6.4 Charging Mechanism

9.6.4.1 Construction of the Charging Mechanism

Outline and Uses
1. charging the photosensitive drum
2. controlling the polarity of residual toner by the cleaning sheet
Component
Primary charging roller
Primary charging roller cleaning sheet charges residual toner to a negative potential by friction
T-9-29
thus preventing the adhesion of toner to the primary
changing roller
thus eliminating the need for a cleaning mechanism for
the photosensitive drum
1. in preparation for the next image formation session, the
photosensitive drum is evenly charged to a negative
potential.
2. returns the toner changed to a negative potential to the
photosensitive drum (for collection in the developing
assembly).
(thereby returning the toner to the photosensitive drum).
Primary Charging roller
F-9-33
Cleaning sheet
Chapter 9
9-39