Toshiba e-STUDIO170F Service Manual page 205

[ 2 ] Development Section
The toner in the toner cartridge is transported to the toner transport roller by the toner agitating screw.
The toner transport roller transports the toner to the sleeve roller. The toner on the sleeve roller is cre-
ated to the even thin-layer by the 1st toner blade.
Then the toner is negatively charged by applying the negative charge to the 2nd toner blade. Also, the
negative charge is applied to the sleeve roller. The toner is adhered on the latent image area exposed
to the laser on the drum.
The toner remaining on the sleeve roller without adhering on the drum is recovered in the toner hopper
by the bias seal under the sleeve roller. The same bias as that of the sleeve roller is applied in the bias
seal.
Developing bias terminal
January 2005 © TOSHIBA TEC
2nd toner blade
1st toner blade
Toner
transport roller
Toner blade Developing
bias terminal bias terminal
Fig.5-10
5 - 13
Drum
Sleeve roller
Bias seal
Bias seal terminal
Bias seal terminal
Toner blade bias terminal
e-STUDIO170F Mechanical Description
5