2 - I - 1
DEVELOPING UNIT
DEVELOPING UNIT
[1] Composition
[2] Mechanism
Mechanism
Developing
Developing bias
Developer agitation
Method
2-component developer
DC bias
Main agitator
Auxiliary agitator
1. Developing unit drive
The drive for the developing unit is divided into the drive for
the developing sleeve and that for the agitating section.
These parts are driven by the developing drive motor (M3)
and the agitator screw motor (M35), respectively.
2. Flow of developer
The developer inside the developing unit is supplied to the
developing sleeve by the agitator wheel, and maintained at
a constant thickness by the developing regulation plate
(bristle height regulation plate). The developer remaining
on the developing sleeve is returned to the agitator screw.
Developing sleeve
Drum
Agitator screws
Toner density sensor
(TDS)
Agitator screws
Toner suction duct
Splash prevent sheet
bridge (upper)
Agitator wheel
Toner suction duct
Developer
regulation plate
Agitator wheel
Developing sleeve
Developing regulating plate
Developing unit cover
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