hp printer mfp m281fdw will not accept 3rd party cartridge

[Junesalasrn]

I have selected "unprotect" in supplies and administration, but my cartridge--which used to work--now will not print. Error "Indicated cartridge blocked for containing non-HP chip"

[Elohi_NR]

Hi @Junesalasrn,

Welcome to the HP Support Community. 

I'd be happy to help you! 

I understand you're unable to print using non-HP ink cartridges

I recommend you update the printer firmware

Download available firmware updates from the HP website with the printer on and connected to the computer, go to HP Customer Support - Software and Driver Downloads, and then identify your printer. Look for and install any available firmware updates. Refer to the document HP Printers - Updating or Upgrading Printer Firmware

The third-party ink cartridges will work. But there are many cartridges in the market which is refilled and sometimes the chip is not configured to work with the printer. You need to contact the cartridge manufacturer and find out why it's not working. Try a different cartridge supplier and check if that works.

Hope this helps!

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