Officejet Pro 8100 ink cartridge error

[sbrodbeck]

Yellow ink cartridge 951 was empty.  I replaced it with another HP genuine yellow 951.  It gave me an incompatible error.  I thought maybe it needed to be a 951XL, so I ordered those.  Same error.  All of the new cartridges have z10 printed on the bottom and the original ones do not.  When looking in the Printer Assistant software, one of the cartridges (Magenta) says it is a Z20, the Cyan and Black do not have any designators.

Wondering if I need a regional reset even though this printer was bought in the US and never been outside of the US.

Thanks for any help.

Super frustrating and so far, a lot of wasted money in ink cartridges I can not use. 

[TEJ1602 · Accepted solution]

@sbrodbeck, Welcome to HP Support Community!

Yes, we need to perform a regional reset on the printer to resolve this issue. 

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 instruction 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 Forums profile, next to your profile Name or simply click on this link.

Keep me posted.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[sbrodbeck]

Exactly the right solution.  Printer is now working fine and recognizes the Z10 cartridges

Thanks