High-voltage Power Supply Functional Check The High-voltage Power Supply Assembly provides the necessary voltages for the printer’s electrophotographic processes. The +24B VDC supply is used to power the High-voltage Power Supply Assembly. A summary of the major components of the High-voltage System is given in Table 7-33. Table 7-33. High Voltage System Checks Checks Action Are the connectors for the Primary Charge Roller, Drum Ground, Developing Bias, and Toner Level Sensor damaged, corroded, contaminated, or missing? 1. Inspect and correct each item. 2. Check the Toner Cartridge. 3. Check all wire connections. 4. Replace the Engine Controller Board if the connection cannot be repaired.
Are the High-voltage Power Supply connections contaminated, bent, or broken? 1. Clean the terminals with alcohol only. 2. Check all wire connections. 3. Replace the Engine Controller Board if the connection cannot be repaired. 7-76 Troubleshooting