2GM
2-1-10
(2-2) Charging the drum
The following shows a simplified diagram of the electrophotographic components in relation to the engine system.
Charging the drum is done by the main charger unit.
Figure 2-1-10 Charging the drum
As the drum rotates in a clean (neutral) state, its photoconductive layer is given a uniform, positive (+) corona charge
dispersed by the main charger wire.
Due to high-voltage scorotron charging, the charging wire can get contaminated by oxidization after a long run.
Therefore, it must be cleaned periodically from time to time. Cleaning the charging wire prevents print quality problems
such as black streaks.
High voltage PWB
MHVDR1
Main charging output
Main charger unit
Drum
Main charger
wire
Bias
PWB
Engine PWB
YC8-10YC1-A4
MHVDR2
YC7-8YC1-A9
YC-M
Zener
PWB
To Next Page
Loading...
Need help?
General
