Phaser 6121MFP Service Manual 2-25
Theory of Operation
Toner Cartridge
The system employs four Toner Cartridges (CMYK) installed in a revolving Toner
Cartridge Rack that positions each cartridge’s developer roller over the Drum. A
cross section of the Toner Cartridge showing functional components follows.
1. Toner stored in the hopper is moved into the toner supply portion by the
rotation of the Toner Cartridge rack
2. Toner in the toner supply portion is conveyed by the supply roller onto the
developing roller.
3. Toner then sticks to the electrostatic latent image formed on the surface of
the photo conductor drum. That part of toner left on the surface of the
developing roller is returned to the toner supply portion.
s6121mfp-126
Supply Section
Developer
Roller
Supply Roller
Hopper Section
To Next Page
Loading...
