SM 6-27 G147
Detailed
Descriptions
6.7.2 DRIVE MECHANISM
The feed/development motor [A] drives the development roller [B] through the gears and the
paddle roller gear [C].
The drive shaft engages and disengages the paddle roller gear when the development unit
is inserted into and removed from the machine.
 The development drive gears are helical gears, quieter than normal gears.
6.7.3 DEVELOPER MIXING
The dual mixing roller consists of the outer paddle [A] and the inner auger [B].
The outer paddle moves developer to the front ° and supplies it to the development roller.
Developer that spills off by the doctor blade ± passes through the holes [C] in the outer
paddle, and is transported to the rear ² by the inner auger.
While the dual mixing roller is moving the developer, some developer also passes back to
the development unit through the holes in the bottom of the paddle roller ³. New toner from
the toner bottle and recycled toner from the toner collection coil both enter the development
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