Block 5: Drum cleaning
The residual (waste) toner is cleared from the photosensitive drum surface to prepare for the next latent
image formation.
Step 7: Drum cleaning
The cleaning blade scrapes the residual toner off the surface of the photosensitive drum and deposits it
in the waste toner container.
Figure 1-22 Drum cleaning
Waste toner container
Photosensitive
drum
Cleaning blade
Step 8: Drum charge elimination
The residual charge on the photosensitive drum surface is eliminated to avoid uneven image. The
residual charge of the previous image is left on the drum surface after the transfer operation and this
affects the following image formation. The product eliminates this residual charge by emitting a laser
beam to the drum surface. The drum charge elimination is operated only during the last rotation period.
Figure 1-23 Drum charge elimination
Laser beam
ENWW
Image-formation system
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