Error 79 79 in display forHP LaserJet MFP M234dw Printer

[Gokudo50]

I have a HP LaserJet MFP M234dw Printer. For over a year now have not been able to use my printer due to an error 79 . I am using a Mac OS Sonoma 14.6.1. I assume it is a firmware issue but I don not seem tobe aboe to update the firmware, probably due to my lack of skill level. Is there a step by step guide for a novice like my self...

[Nal_NR]

Hi @Gokudo50,

Welcome to the HP Support Community. 

I'd be glad to help you! 

I’m really sorry to hear that you’ve been dealing with the error 79 on your HP LaserJet MFP M234dw for so long—it can be so frustrating, especially when you’re not sure where to start with firmware updates. I’m here to help guide you through the steps!

Use the following workarounds.

Use a LAN connection instead of a wireless connection if possible.

If a wireless connection is required, remove the toner cartridge from the printer, turn on the printer, insert the toner cartridge, and when the printer is ready, update the Firmware to the latest version from the EWS or using the Firmware Update Utility.

1. Turn off the printer, remove the toner cartridge from the printer, and then wait for 30 seconds.
2. Turn on the printer, and when the control panel displays Er07, insert the toner cartridge.
3. The printer should go back to the Ready mode.
4. Press the Information button to print the Printer Information Report.
5. The report contains the printer IP address and printer PIN.
6. Open a web browser, enter the printer IP address to access the EWS page.
7. Click System, and then enter the user name and password.
8. Use admin as user name and printer PIN as password (PIN is available in the Information Report).
9. Go to Administration, click the Check Now button in the printer update section to check for a new Firmware update. Update the printer if the new Firmware update is available. New Firmware fixes the Er79 issue.
10. If the new Firmware update is not available in step 7, go to support.hp.com to download the latest Firmware Update Utility (version: 20240512).
11. If the printer does NOT go to Ready mode at step 3, remove the toner, reset the printer, and then perform the super NVRAM reset on the printer.

Once the printer is set up with a wireless connection, follow steps 7 and 8 to update the firmware.

If the above steps do not resolve the issue, we need to perform an NVRAM RESET. 

The reset instructions are specific for your printer and performing those steps on a different printer may brick the device. 

I've sent you a private message with reset instructions, follow the reset instructions to perform a full reset and re-initialize the printer. 

In order to access your private messages, click the private message icon on the upper right corner of your HP Community profile, next to your profile Name or simply click on this link.

Hope this helps! Keep me posted. 

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