Charging The Drum - Kyocera Mita KM-1500 Service Manual

2DC

(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 A.
YC-M
Main charging output
Zener
board
KP-788
As the drum C rotates in a "clean (neutral)" state, its photoconductive layer is given a uniform, positive (+) corona
charge dispersed by the main charger wire B.
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.
2-1-10
High voltage board
Bias
board
CN2-A4
A
B
Figure 2-1-10 Charging the drum
Engine board
MHVDR
YC8-5
C