Charging Process - Epson EPL-6200 Service Manual

EPSON EPL-6200/EPL-6200L

2.2.2 Charging Process

Before laser exposure, static electricity is given to the OPC drum (Organic
Photoconductor) to charge it.
The surface of the OPC drum is charged by the rotating brush (charging brush) and
pre-charging film.
Charging by the charging brush and the pre-charging film, by which charge is
given directly to the OPC drum, is characterized by generating ozone rarely,
requiring a low voltage and excelling in homogeneity and stability of the electric
potential.
The pre-charging film performs preliminary charging before charging with the
rotary brush (charging brush) to enhance efficiency of charging.
Operating Principles
Photoconductor Unit
Description of Mechanisms
Paper Powder Cleaner
Charging Brush
OPC Drum
1. Charging Brush
2. OPC Drum
3. Grounding
4. Charge Bias
Figure 2-12. Charging Process
Revision A
Drum Cover
Pre-charging
Film
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