Lexmark C522 Service Manual page 141

Toner cartridge
The following illustration shows the circuit path that allows high voltage current to flow from the HVPS to the
toner cartridge. The toner cartridge contains three parts that are provided high voltage from the HVPS. These
three parts are: the doctor blade, the developer roll, and the toner adder roll (TAR). It is essential that the contact
springs are properly touching to provide a good flow. If not, print quality problems will occur.
High voltage
power supply
Cleaner blade high
voltage contact path
Toner add roll
high voltage
contact path
Developer roll high
voltage contact path
Diagnostic aids
5022-xxx
3-47