Kyocera FS-1010 service manual Charging the drum

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.

High voltage board

Bias board

MHVDR

Engine board

YC-M

CN2-A4

YC12-5

Main charging output
A
B	C
Zener
board
KP-788

Figure 4-1-4 Charging the drum

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 rum. Therefore, it must be cleaned periodically from time to time using the method explained in chapter 3. Cleaning the charging wire prevents print quality problems such as black streaks.

FS-1010

4-6