Epson Aculaser C9200N - Page 45

EPSON AcuLaser C9200N Revision D
OPERATING PRINCIPLES Operating Principle of Main Unit Mechanism 45
Confidential
2.2.6.2 Operation
PC DRUM CHARGE CORONA ON/OFF CONTROL
The grid voltage (Vg) applied to the Grid Mesh is controlled through the image
stabilization control.
CLEANING/MAIN ERASE MECHANISM
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.
Figure 2-17. Cleaning/Main Erase mechanism
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Drum Charge Corona Bias Y, M, C
Drum Charge Corona Bias K
Developing Clutch/K (CL4)
Color PC Drum Motor (M2) ON
Main Motor (M1) ON
Color Developing Motor (M3)
4038T2C030AA
Cleaning Blade
Cleaning Blade
Toner Collecting Screw