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- HP Community
- Printers
- Printing Errors or Lights & Stuck Print Jobs
- Error Code 49

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10-15-2025 11:08 AM
Hello, after starting up, the printer always shows 49 on the display and does not respond at all. I cannot print a diagnostic page, it does not connect to the Wi-Fi, and I cannot establish a connection via USB either. Can you help me?
10-18-2025 01:10 PM
Hi @PlainMike,
Welcome to the HP Support Community.
Thank you for posting your query. I will be glad to help you.
I understand you're getting an error code 49 on your HP LaserJet MFP M234dwe Printer is typically a firmware error. Here are some steps you can take to resolve this issue:
Power Cycle the Printer:
- Turn off the printer and unplug it from the power source.
- Wait at least 60 seconds.
- Plug the printer back into the power source and turn it on.
Update the Firmware:
- Ensure you have the latest firmware for your printer model. Since you cannot connect the printer directly, you might need to use a USB flash drive to update the firmware. You can download the latest firmware from the HP Support website on another computer, transfer it to a USB, and then connect the USB to the printer if it becomes responsive.
Check for Connection Issues:
- Ensure all cables are securely connected, and try a different USB port or cable for connection.
Try a Cold Reset:
- Power off the printer, then press and hold the 'Cancel' button while turning the printer back on to perform a cold reset.
Check for Network Conflicts:
- If you had the printer connected to Wi-Fi before, check if there are any IP conflicts in your network. Restart your router to reset network settings.
Remove and Reinstall Printer Drivers:
- On your computer, remove the printer from your list of devices, and reinstall the drivers from the HP website using a direct connection (if possible).
I hope this helps.
Take care and have a good day.
Please click “Accepted Solution” if you feel my post solved your issue, as it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
A_Gayathri
HP Support Community Administrator.