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- HP Community
- Printers
- LaserJet Printing
- 50.4F.00 Fuser error

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2 REPLIES 2
02-07-2018 07:28 AM
Drive circuit fault occurred.
Recommended action
- Turn the printer off.
- Check the printer power source, and ensure that the power source meets printer requirements.
NOTE:
If the power source does not meet the power frequency requirements of 43 to 67Hz, the fuser temperature control does not work correctly and causes this error. - If possible, connect the printer to an outlet where another printer is functioning correctly to check the power connection.
- Remove and reinstall the fuser, and ensure that it is seated correctly.
CAUTION:
The fuser might be hot. - Check the connector (J1901) between the fuser and the printer. If the connector is damaged, replace the fuser drive assembly.Part number: RM1-9606-000CN
- Reconnect the connectors (J303 and J305) on the fuser control PCA and connector (J107) on the DC controller PCA.
- If the error persists, replace the fuser and the fuser power supply assembly at the same time:For instructions: Removal and replacement: FuserFuser (110V) part number: C1N54-67901Fuser (220V) part number: C1N58-67901Fuser power supply: RL1-4005-000CN
- If the error persists, replace the DC controller.For instructions: See the Repair Service Manual for this product.M855 part number: RM2-7005-000CNM880 part number: RM2-7006-000CN
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