Lexmark C520 Service Manual - Page 124
Toner add roll, high voltage, contact path, Developer roll high, voltage contact path, High voltage
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5022-xxx 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 3-47
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Diagnostic aids
3-47
5022-xxx
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.
Toner add roll
high voltage
contact path
Developer roll high
voltage contact path
High voltage
power supply
Cleaner blade high
voltage contact path