EPSON EPL-5800
Revision B
Operating Principles
Operating Principles of Mechanism
49
2.1.3 Charging Process
2.1.3.1 Overview
!
It is charged by giving static electricity to OPC drum (Organic Photoconductor)
before laser exposure.
!
Surface of OPC drum is charged by rotating brush (charging brush) and pre-
charging film.
!
Charging by the rotation brush (charging brush) and the pre-charging film has low
rate of ozone occurrence by corona discharge and also low voltage and excels in
homogeneity and stability of the electric potential because of direct charging to the
OPC drum.
!
Electric potential on the surface of OPC drum after charging is about
-800V.
!
A rotation brush (charging brush) rotates when drive from the main motor (M1) is
transmitted to the gear of the rotation brush (charging brush).
!
Pre-charging film takes a pre-charge before the rotation brush (charging brush)
takes a charge in order to improve efficiency of charging.
Figure 2-5. Charging Mechanism
Drum Cartridge
4121s030
OPC Drum
Rotation Brush
(Charging Brush)
Developing Sleeve
Roller
Transfer Roller
Pre-charging Film
Paper Powder Cleaner
Surface Abrasive
Laser Exposure
Drum Cover
1
2
4
4110s031
1. Rotation Brush
(Charging Brush)
2. OPC Drum
(Photoconductor)
3 Earth
4.Charging Brush
(Charging Bias)
Summary of Contents for EPL-5800
Page 6: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 43: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 56: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 63: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 84: ...C H A P T E R 5 ADJUSTMENT ...
Page 89: ...C H A P T E R 6 MAINTENANCE ...
Page 92: ...C H A P T E R 7 APPENDIX ...
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