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Process/Operation > Image Formation System > Controls > Drum Unit (Developing/Drum)
Process/Operation > Image Formation System > Controls > Drum Unit (Developing/Drum)
■ Drum Unit (Developing/Drum)
● Drum Unit Overview
The Drum Unit consists of the Developing Assembly and the Drum Assembly.
Developing Assembly
Drum Assembly
F-2-64
● Developing Overview/ Drive Configuration
Developing Cylinder
Toner Feed Screw A
Toner Feed Screw B
ATR Sensor
(UN39-UN42)
M3(YMC)
M2(BK)
Developing
Motor
Parts name
Function
Developing Assembly
To develop toner fed from the Hopper Unit to the Photosensitive Drum.
Developing Cylinder
To develop toner in the Developing Assembly on the Photosensitive
Drum.
Toner Feed Screw A/B
Developer (toner and carrier) in the Toner Container is stirred and is
supplied to the Developing Cylinder.
Toner Feed Screw C
Toner is supplied from the Toner Container to the Developing Assembly.
Parts name
Function
M2
ITB Motor
To rotate the Bk Developing Cylinder and the Toner Feed Screw.
M3
Developing
Motor
To rotate the Y/M/C Developing Cylinder and the Toner Feed Screw.
UN39 to UN42 ATR Sensor
To detect the ratio of developer (toner + carrier) in the Developing
Assembly.
F-2-65
T-2-24
T-2-25
