High-voltage power supply check

The High-Voltage Power Supply PCA provides the necessary voltages for the electrophotographic processes. A method for verifying the high-voltage system is given in the table below.

Table 7-4 High-voltage power supply check

Check

Action

 

 

Toner Cartridge Connection Points

Visually inspect the three connection points on the underside, right

 

end of the toner cartridge. If they are dirty or corroded, clean the

 

connections. Use alcohol only. If damaged, replace the toner

 

cartridge. (See Figure 7-5 below.)

 

 

High Voltage Connector Assembly

This assembly uses spring-loaded pins to contact the toner

 

cartridge. (See Figure 7-6 on the following page.) Verify that the pins

 

are not dirty or corroded and that the spring-loading action is

 

functional. If the pins are dirty, clean using alcohol only; if damaged,

 

replace the High Voltage Connector Assembly.

 

 

1

2

3

Figure 7-5Toner cartridge high-voltage connection points (1 of 2)

1Charging

2Drum Ground

3Developing Roller

EN

Troubleshooting checks 135