Downgrade the firmware update for my Hp Office Jet pro 7740.

[Rach121301]

I had this printer for a few years and it has worked great. Recently my printer was updating automatically and I didn't think anything of it. I noticed my ink cartridges were getting low so I grabbed a pack of the same exact ones that I bought together and put them in the printer. My printer read non hp chip detected for all of the new ink cartridges that were the same as the ones that worked before. I did the reset, popped them in and out, I did all of the little tricks so that the printer would recognize it and nothing worked. I saw that maybe it's because of the firmware update and that I can't use cartridges that are not up to date or whatever. I bought two new ones from Amazon and they still didn't work. I'd appreciate some help. Thanks.

[Irfan_06]

Hi @Rach121301,

Welcome to the HP Support Community.

Thank you for posting your query, I will be glad to help you. 

I see that you have an issue using ink cartridges on your printer.

Please refer to the below links for more information related to your issue.

HP printer ink cartridge issues including 'Incompatible', 'Missing', 'Failure' and enrollment errors

 

How to fix ink cartridge errors on HP Inkjet printers

I hope this helps.

Take care and have a good day.

Irwin6

HP Support