Cleaning; Drum Cleaning And Erasing Static Charge - Kyocera FS-1920 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 is constantly pressed against the drum and scrapes the residual toner on the drum off to the
cleaning roller. The cleaning roller drives the toner to the cleaner screw at one end of which the waste toner bottle is
connected to collect the waste toner.
Cleaning blade
After the drum 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 to the light emitted from the eraser lamp [board] (See figure 2-1-19 above.) in the similar manner as described on
page 2-1-9. This lowers the electrical conductivity of the drum surface making the residual charge on the drum surface
escape to the ground.
After the drum is physically cleaned, it then must be cleaned to the electrically neutral state. This is necessary to erase
any residual positive charge, ready to accept the uniform charge for the next print process. The residual charge is
canceled by exposing the drum to the light emitted from the eraser lamp. This lowers the electrical conductivity of the
drum surface making the residual charge on the drum surface escape to the ground.
Eraser lamp [board]
Cleaning screw
Cleaning roller
Figure 2-1-19 Drum cleaning and erasing static charge
drum
2FP/2FY/2FR
2-1-19