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50 FUSER ERROR  HP LASERJET P4010 P4014 P4015 P4515


A fuser error has develped. The code for X are displayed below.  50 Fuser Assembly Error

  • Fuser Error 50.1: fuser low temperature 

  • Fuser Error 50.2  Fuser heat up service 

  • Fuser Error 50.3  Excess fuser temperature  

  • Fuser Error 50.4  Improper functioning fuser

  • Fuser Error 50.5: sporadic fuser (Ensure voltage model

  • Fuser Error 50.6: Fuser open

  • Fuser Error 50.7: Pressure  mechanism release breakdown

  • Fuser Error 50.8  Temperature Low Fuser

  • Fuser Error 50.9  Temerature High Fuser


  1. Recycle power the HP Laserjet P4010, P4014< P4015, P4515 to figure out if fuser error is consistant..

  2. Ensure that the proper fusing model is installed within the printing product.

  3. Check that the accurate voltage fuser is installed within the HP product.

  4. Verify that the fusing assembly is securely installed inside printer chassis. Reconnect the fusing assembly and hear for a “click” at the end of the assembly after you install it into the product.

  5. Make sure that the connection to adapter J82 on the DC controller PCA is firmly installed.

  6. Look at the fuser assembly connection, at the front of the fixing assembly, and the connections within the high-voltage power supply PCA. Search for twisted pins or particles. Clean or unbend the pins if needed.

  7. In the event that the error display, Switch out the fusing assembly.

  8. In the event that the error still continues, Switch out the high voltage power supply.

Associated printer models:
HP Laserjet P4010
HP Laserjet P4014
HP Laserjet P4015
HP Laserjet P4515

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