Technical Explanation Of Print Process - Epson AcuLaser C1100 Service Manual

EPSON AcuLaser C1100

2.1.3 Technical Explanation of Print Process

2.1.3.1 Charging
At the "Charging" process, BCR (Bias Charge Roll) applies a uniform negative
potential to the drum which rotates at a fixed speed.
BCR keeps contact with the drum and moves together with it.
BCR is a conductive roller, that is negatively charged by HVPS, applies a negative
charge to the drum.
The drum surface is uniformly charged to a negative potential with DC bias
voltage.
The drum is made of conductive material (aluminum cylinder) coated with a
photosensitive material which becomes insulating material in darkness and
becomes conductive when it is subjected to light.
OPERATING PRINCIPLES Print Process
Figure 2-3. Charging Process
Revision B
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