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11. Charge corona section
Theory of Operation Ver. 1.0 Sep. 2008
40
bizhub C200
Composition/Operation
11.1 Operation
11.1.1
PC drum charge corona ON/OFF control
• The grid voltage (Vg) value applied to the grid mesh is determined through the image
stabilization control.
11.1.2
Cleaning/main erase mechanism
A. Cleaning/main erase operation
1.
The cleaning blade is pressed up against the surface of the PC drum, scraping
residual toner off the surface (forward blade system).
2.
Toner, which has been scraped off the surface of the PC drum, is fed by the toner
collecting screw back toward to the conveying screw in the rear of the machine. It is
then collected in the waste toner collecting box.
3.
The surface of the PC drum after the image transfer process is irradiated with light
from the main erase lamp. This neutralizes any potential left on the surface of the
PC drum.
4038T2C024AA
Drum charge corona bias Y, M, C
Drum charge corona bias K
Developing clutch/K (CL4)
Color PC motor (M3)
Transport motor (M1)
Color dev. unit engaged motor
(M4)
4038T2C030AA
Cleaning blade
Cleaning blade
Toner collecting screw
Theory of Operation Y109670-2