Drum Cleaning And Erasing Static Charge - Kyocera Mita FS-6750 Service Manual

Operation theory
Electrophotographics system

Drum cleaning and erasing static charge

The drum needs to be physically cleaned of toner remaining on its surface in the
previous rotation. The cleaning blade ("A" below) scrape against the drum to
remove the waste toner. To collect the waste toner, the waste toner bottle is con-
nected to the end of the spiral roller ("B" below).
After the drum is physically cleaned, it then must be cleaned to an electrically neu-
tral state. This is necessary to erase any residual positive charges, ready to accept
the next uniform charge. The residual charge is canceled by exposing the drum to
the light emitted from the eraser LED ("C" above) in the similar manner as
described in page 4-6. This lowers the electrical conductivity of the drum surface
making the re-sidual charge on the drum surface escape to the ground.
FS-6750
A
B
C
A
B
4-11