Code :

Code: 997
Description: Charger HV Unit (HVU) Error
This error indicates a problem with the high voltage power supply unit (HVU).
Remedy: 1 OPC Belt Cartridge Ensure the charge unit, on the belt cartridge, is installed correctly. Check the charge corona wire for a cut or short. Replace the OPC belt cartridge, if necessary. Note: This is a customer orderable part.
2 High Voltage Power Supply (HVU) Turn the printer Off and unplug the power cord. Ensure proper contact between the high voltage power supply and all CHV output and contact terminals on the high voltage power supply (HVU). If any parts are dirty or damaged, clean or replace the high voltage power supply unit (HVU).
3 • IOD1 P.W.B. Board • Main Engine (MCTL P.W.B.) Board If the problem still exists, replace the IOD1 P.W.B. board. If the problem is present, replace the main engine (MCTL P.W.B.) board.