Persistent ER 5 message

[Citydoc60]

I have a persistent ER 5 Message on my Laserjet MFP M234dw  printer . Nothing I seem to do will clear the issue, including factory reset

[Garp_senchau]

@Citydoc60, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

The Er/05 error message on your HP LaserJet MFP M234dw indicates a paper jam. Here are step-by-step instructions to troubleshoot and resolve this issue:

Check for Jammed Paper:

• Open the paper output tray and gently remove any visible paper or paper pieces stuck inside.
• Make sure to check for any paper obstructions in all accessible areas of the printer.

Remove and Reinstall the Toner Cartridge:

• Open the printer's cartridge access door.
• Carefully remove the toner cartridge.
• Look for and remove any jammed paper in the toner area.
• Reinstall the toner cartridge securely.

Check and Clear Paper Input Tray:

• Remove the paper stack from the input tray.
• Inspect for any bent, wrinkled, or torn paper and remove it.
• Ensure no obstructions are inside the tray.
• Reload a fresh stack of paper.

Reset the Printer:

• Turn off the printer.
• Disconnect the power cord.
• Wait for about 30 seconds.
• Reconnect the power cord and turn the printer on.

Reference: HP LaserJet MFP M232-M237 printers - Error codes and blinking lights | HP® Support

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

Regards,

[Citydoc60]

Thanks for getting back to me. I have performed all the actions recommended but the error message still persists. I was on the advice chat line and eventually it was suggested that the printer needs servicing. As it is out of warranty I fear that the cost of that may exceed me going out and buying a new printer which defeats the object! Many thanks

[Kuroi_Kenshi]

Hi @Citydoc60,

Thank you for the response.

I understand your HP LaserJet MFP M234dw is still showing the persistent Er/05 message despite trying all the recommended troubleshooting steps. Let’s go over a few additional checks that can sometimes resolve this before considering service.

Inspect the Paper Path Thoroughly
– Remove all trays and covers and carefully look inside the printer.
– Even small bits of paper or dust can trigger the Er/05 error. Use a flashlight if needed.

Check the Toner Cartridge Door Sensors
– Sometimes the door or cartridge isn’t fully seated, causing a false jam error.
– Remove the cartridge and close the door without it, then reinsert the cartridge firmly.

Clean Roller Sensors
– Dust or debris on the paper feed rollers or sensors can cause jam errors.
– Use a dry, lint-free cloth to gently clean the rollers and visible sensor areas.

Try a Power Cycle with Extended Reset
– Turn off the printer and unplug the power cord.
– Leave it unplugged for 10–15 minutes, then plug it back in and power on.
– This can sometimes reset the sensor logic more fully than a standard reset.

Test with Minimal Paper
– Load only 1–2 sheets of fresh, straight paper in the input tray.
– Attempt a test print to see if the error persists, which can indicate if the issue is paper path related.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨

Take care and have an amazing day ahead! 🚀

Best regards,