ITB cleaning stage
Step 8: ITB cleaning
The ITB cleaning roller and the cleaning brush are applied with the DC positive bias to charge the
residual toner positive. Because the primary transfer pad is also applied with the DC positive bias, the
positively-charged residual toner is reverse-transferred to the photosensitive drum from the ITB surface.
Figure 5-17 ITB cleaning
ITB cleaning brush
Sweeper strip
ITB cleaning roller
ITB
DC bias
DC bias
Partition sheet
Positive potential waste toner
Negative potential waste toner
Cartridge
Photosensitive drum
ENWW Image-formation system 71
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