Drum Unit
SM 7-17 D255/D256/M281/M282
Descriptions
7.5 DRUM UNIT
7.5.1 DRUM
The drum section consists of the drum, the charge roller unit, and the cleaning unit. The drum
surface is uniformly charged in preparation for formation of residual image by the laser beam.
After transfer is complete, toner remaining on the drum surface is removed with the cleaning blade
and is sent to the waste toner bottle with the drum coil. The quenching lamp consists of LEDs and
removes residual charge on the drum before main charging for the next image.
No. Name No. Name
1 Drum 3 Cleaning roller (for charge roller)
2 Charge roller 4 Charge roller case
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