Brother International HL-2400C Service Manual - Page 280

VIII-35 Error Code Concerned Part F5 High Voltage Unit (HVU) Confirm the status of the charger unit. Is the charger unit properly installed ? NO YES Is a corona wire cut or shorted ? YES NO Confirm the connection of the high voltage wiring. Is there any contact failure of the high voltage (CHV) output terminal ? YES NO Is there any contract failure or short of CHV socket ? YES NO Replace the high voltage (HVU) Is F5 error cleared ? NO YES Finished. Re-install the charger unit. Replace the charger unit or belt cartridge. Is F5 error cleared ? YES NO Correct the CHV contact. Clean the socket part. Is F5 error cleared ? YES NO Finished. Finished. Replace the IOD1 or MCTL PCB. MCTL IOD1 HVU DCN14 BCN1 +24V-1 CHVN-N 1 7 CHVERR 8 CHV HV Charger Unit