EN Troubleshooting checks 135
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.
Figure 7-5 Toner cartridge high-voltage connection points (1 of 2)
1 Charging
2 Drum Ground
3 Developing Roller
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
Service.book Page 135 Thursday, September 14, 2000 11:15 AM
