High-voltage power supply check The high-voltage power supply PCA provides the necessary voltages for the electrophotographic processes. To check the toner cartridge connection points Turn the toner cartridge over and visually inspect the three connection points on the ends of the toner cartridge: drum ground (callout 1), charging (callout 2), and developing roller (callout 3). If any are dirty or corroded, clean the connection. If any are damaged, replace the toner cartridge. Note Use only isopropyl alcohol to clean the connections. 21 Figure 55. Toner cartridge high-voltage connection points (right side) 2 2 3 2 Figure 56.
Toner cartridge high-voltage connection points (left side) 84 Chapter 3 - Troubleshooting Q1342-90910