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DRUM UNIT CF5001 Ver.1.0 Sep. 2003
2-20
II UNIT EXPLANATION
[10] Charging /M Forms a charging potential on the surface of the drum /M
DC corona discharge (Scotron)
Wire discharge: gold-plated tungsten wire (φ 30µm)
Constant-current method DC output range: -450 to -1100µA
Grid bias: changing control plate
Constant voltage method DC output range: -200 to -950V
[11] Charging /C Forms a charging potential on the surface of the drum /C
DC corona discharge (Scotron)
Wire discharge: gold-plated tungsten wire (φ 30µm)
Constant-current method DC output range: -450 to -1100µA
Grid bias: changing control plate
Constant voltage method DC output range: -200 to -950V
[12] Charging /K Forms a charging potential on the surface of the drum /K
DC corona discharge (Scotron)
Wire discharge: gold-plated tungsten wire (φ 30µm)
Constant-current method DC output range: -450 to -1100µA
Grid bias: changing control plate
Constant voltage method DC output range: -200 to -950V
[13] Pre-charging exposure lamp /Y
(PCL Y)
Lowers and uniforms the drum /Y surface potential
LED
[14] Pre-charging exposure lamp /M
(PCL M)
Lowers and uniforms the drum /M surface potential
LED
[15] Pre-charging exposure lamp /C
(PCL C)
Lowers and uniforms the drum /C surface potential
LED
[16] Pre-charging exposure lamp /K
(PCL K)
Lowers and uniforms the drum /K surface potential
LED
[17] Cleaning blade Cleans the drum
Drum contacting separation method
[18] Toner collection screw
Conveys toner from the cleaning section to the toner collection section
Screw method
[19] Grease Assists the drum cleaning ability
Zinc stearate rod
[20] Grease applying brush roller Applies grease to the drum surface
Drum contacting application method by brush
[21] Transfer belt unit YMCK synthetic transfer image formation base
See "5. Transfer belt unit."
[22] Drum /K Transfer image formation base for black
OPC drum (φ 60mm)
[23] Drum /C Transfer image formation base for cyan
OPC drum (φ 60mm)
[24] Drum /M Transfer image formation base for magenta
OPC drum (φ 60mm)
[25] Drum /Y Transfer image formation base for yellow
OPC drum (φ 60mm)
[26] Process unit Color image formation section
Consists of the developing unit, drum cartridge, and transfer belt unit
Symbol Name Function or method