HP laserjet m234 er 75 after replacing toner

[Veeb-Group]

Printer was working fine with original toner cartridge. Ran out of toner. Bought New HP toner from office depot and installed it. Now all I get is an Er 75. Tried putting original cartridge in, same error. Tried all the unplugging from wall and printer nonsense & its still giving me the sane error.  Just out of warranty & stuck with a useless printer and new toner.  How can I fix this error from hades?? 

[A_Gayathri]

Hi @Veeb-Group,

Welcome to the HP Support Community

I understand you are facing an issue with your HP laserjet m234 er 75 after replacing toner. Not to worry I will help you to get a resolution to resolve the issue.

Let's perform a power drain: 

• With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.
• Remove USB cable, if present.
• Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
• Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord (This is important) and then plug back the power cord to the printer.
• Turn on the printer and wait till warm-up period finishes and the printer is idle

Update the printer firmware 

• Click here to download and install the latest printer firmware from your product
• Click here to know different methods of updating printer firmware.
• click here and follow the troubleshooting steps HP LaserJet MFP M232-M237 printers - Error codes and blinking lights

If the issue persists, then please follow the steps mentioned in this document:

Hope this helps! Keep me posted. 

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