FAQs

The design of a toner cartridge varies with different models and manufacturers, but the following components are commonly found in most toner cartridges.

Toner hopper:The small container which houses the toner

Seal:A removable strip that prevents toner from spilling before installation

Doctor blade: Helps control the precise amount of toner that is distributed to the developer

Developer:Transfers toner to the OPC drum

Waste bin:Collects residual toner wiped from the OPC drum

Wiper blade:Wipes away residual toner applied to the page

Primary charge roller (PCR):Applies a uniform negative to the OPC drum prior to laser-writing. It also erases the laser image

Organic photo-conductor (OPC) drum:holds an electrostatic image and transfers toner onto the paper

Drum shutter:protects the drum from light when outside the machine and retracts the drum into the printer