LazerJet MFP 1429w error 11 will not clear even with new cartridge

[RTZ1231]

Lazerjet MFP 1429w error 11 will not clear

[Sneha_01]

Hi @RTZ1231,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

Error 11 on the HP LaserJet MFP 1429w typically indicates a problem related to the toner cartridge or the toner cartridge detection system. If replacing the cartridge hasn't resolved the issue, here are several steps to troubleshoot and resolve the error:

**1. Check and Reinstall the Toner Cartridge

• Power Off and Unplug:
  • Turn off the printer and unplug it from the power source.
• Remove and Inspect Cartridge:
  • Open the printer’s access door to remove the toner cartridge.
  • Check for any protective tapes or covers that might still be on the new cartridge.
• Reinstall the Cartridge:
  • Reinstall the cartridge carefully, ensuring it is properly seated and secured.
• Power On:
  • Plug the printer back in and turn it on to see if the error clears.

**2. Inspect the Cartridge Contacts

• Clean Contacts:
  • Use a soft, dry cloth to gently clean the electrical contacts on both the toner cartridge and inside the printer where the cartridge connects.
• Check for Damage:
  • Look for any visible damage to the cartridge contacts or the printer’s contact points.

**3. Check for Cartridge Compatibility

• Verify Cartridge Model:
  • Ensure that the toner cartridge is compatible with the HP LaserJet MFP 1429w. Use only HP-branded cartridges or those recommended by HP.

**4. Reset the Printer

• Perform a Hard Reset:
  1. Turn off the printer and unplug it from the power source.
  2. Wait for about 60 seconds.
  3. Plug the printer back in and turn it on.

**5. Check for Firmware Updates

• Update Firmware:
  • Visit the HP Support website and search for the HP LaserJet MFP 1429w.
  • Download and install the latest firmware update, as firmware issues can sometimes cause cartridge errors.

**6. Perform a Printer Self-Test

• Run Diagnostics:
  • Access the printer’s self-test or diagnostics mode (refer to the printer’s manual for instructions) to check for any issues or error codes.

**7. Inspect Printer Internals

• Check for Obstructions:
  • Look inside the printer for any paper jams, foreign objects, or obstructions that might be affecting the toner cartridge or print mechanism.
• Check for Physical Damage:
  • Inspect the printer for any visible signs of physical damage that might affect its operation.

I hope this helps.

Take care and have a good day.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

Rachel571

HP Support