Canon LBP-2000 Service Manual page 84

CHAPTER 2
5 . Drum cleaning block
In the transfer step, not all toner on the photosensitive drum is transferred to the paper, with
some being left behind.
The drum cleaning block is used t clean the surface of the photosensitive drum, thereby ensur-
ing the reproduction of sharp images for the next run.
Cleaning blade
Cleaner case
Photosensitive
Scoop-up sheet
drum
Figure 2-4-13
In preparation for the next run, the cleaning blade is used to scrape off the toner remaining on the
surface of the photosensitive drum for cleaning. The scraped toner is then collected inside the
cleaner case of the cartridge.
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