How do I restore my 9120e to HP+ with no subscription to ink cartridges or to paper?

[NGat1]

I must reopen this case:
1. I first tried non-HP replacement cartridges and the printer of course did not work

2. I then purchased HP cartridges (original HP in Cartridge) directly from the HP store  -- technical support suggested specifically the 962 (black and color).  The printer would not recognize these cartridges and would not print.  The error message is "incompatible cartridges; the indicated cartridges are not intended for use in this printer as currently configured.  HP+ printers require Original HP Cartridges." 

Well I purchased original HP cartridges from the HP store. 

My Printer was removed from the Instant Ink plan (I'm not interested in that). 

What do I do next? 

The printer was about $250 on Amazon.  Should I toss it in the trash now?  Do you have a better solution?

[VikramTheGreat]

Hi @NGat1,

Welcome to the HP support community.

Sorry to hear about the issue. Have you registered for HP Instant Ink by any chance? Could you elaborate on the issue for better understanding?

Please help us with the Printer serial number or the product number in a private message for further assistance.
 

Here is the link to find the product number: - Click here

To access your private messages, simply click the private message icon in the upper right corner of your HP Support Community profile, next to your profile and send a private message to me with the serial number, because we value your privacy.
 

VikramTheGreat

HP Support