Kyocera FS-1050 Service Manual - Page 65
Charging the drum, Charging the drum
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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 YC-M CN2-A4 Bias board Engine board MHVDR 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-1050 4-6