e-STUDIO281c/351c/451c © 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
COPY PROCESS
3 - 12
9) Blade cleaning
While eliminating the (+) charge on the photoconductive drum applied during the transfer stage, the
conductive blade recovers the toner left on the drum at the same time.
- Elimination of transfer charge
With this OPC photoconductive drum, (+) charge on their surface cannot be eliminated optically.
Therefore, (–) voltage is applied to the conductive blade, which is pressed against the drum, to
eliminate the (+) charge applied at the transfer process.
Fig. 3-20
- Cleaning
The edge of the conductive blade is pressed against the photoconductive drum surface to scrape
off residual toner. The toner removed is then caught by the recovery blade.
Fig. 3-21
800V
± 800V
0
Elimina-
tion of
transfer
charge
Surface potential of photoconductive drum
Transfer Discharge Charging
Conductive blade
Recovery blade
Drum rotation
To Next Page
Loading...
