Cleaning - Kyocera FS-1900 Service Manual

(6) Cleaning

After the transferring process, the drum needs to be physically cleaned of toner which is residual
after the development process. The cleaning blade A is constantly pressed against the drum B and
scrapes the residual toner on the drum off to the cleaning roller C. The cleaning roller drives the
toner to the cleaner screw D at one end of which the waste toner bottle is connected to collect the
waste toner.
E
B
A
D C
Figure 4-1-15 Drum cleaning and erasing static charge
After the drum B is physically cleaned, it then must be electrically cleaned to neutral 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 B to the light emitted from the eraser lamp
[board] E (See figure 4-1-15 above.) in the similar manner as described on page 4-6. This lowers
the electrical conductivity of the drum B surface making the residual charge on the drum B
surface escape to the ground.
FS-1900
4-17