Xerox Phaser 3100MFP Service Manual page 215

General Procedures and Information
Drum Cleaning
Figure 6
The cleaning blade and the used toner tank are contained in the print cartridge.
The Discharge Lamp and A counter blade system is used for drum cleaning. The Discharge
Lamp[C] discharge the drum surface. The cleaning blade [A] removes any toner remaining on the
drum after the image is transferred to the paper. This removed toner is stored in the used toner
tank [B].
There is no used toner overflow detection mechanism, because the used toner tank is large
enough for the lifetime of the toner cassette.
Phaser 3100 MFP 04/08 6-67