High-voltage power supply functional check:
The high-voltage power supply assembly provides the necessary voltages for the printer’s
electrophotographic processes. The +24 B VDC supply is used to power the high-voltage power
supply assembly.
High voltage system checks
Are the connectors for the primary charge
roller, drum ground, developing bias, and
toner level sensor damaged, corroded,
contaminated, or missing?
- Inspect and correct each item.
- Check the toner cartridge.
- Check all wire connections.
- Replace the engine controller board if
the connection cannot be repaired.
Are the high-voltage power supply
connections contaminated, bent, or
broken? - Clean the terminals with alcohol only.
- Check all wire connections.
- Replace the engine controller board if
the connection cannot be repaired.
Is the internal toner cartridge damaged? Replace the toner cartridge.
