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8620 printer cartridges error ‘incompatible cartridges’ (they are not!)

Office jet pro 8620


I needed to replace the cartridges so I bought the printer specific ones (and identical to those removed) from HP online. It now says ‘the indicated cartridges are not intended for use in this printer’ 

they are 951xl colours (the black is fine) 

there are no system updates (according to online), tried resetting (off and on over 6Os), cleaning the gold bit.. I’m at my wits end as if I put the old ones back it’s fine (just no ink!!) 

the only difference I can see is zo20 on the package, but the pack  clearly says 8620 compatible! 
please help- kids driving me mad with no printer for homework!! 

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HP Recommended

8620 printer cartridges error ‘incompatible cartridges’ (they are not!)



Welcome to HP support community.


Clean the ink cartridge contacts

  1. Turn the printer on.

  2. Open the door to access to the ink cartridges.

  3. Wait until the carriage stops moving before you continue.

  4. Push in on the front of the ink cartridge indicated in the error message, and then remove it.

    Animation of replacing the ink cartridges

  5. Wipe the electrical contact on the ink cartridge with a lint-free cloth.

  6. Insert the ink cartridge into its color-coded slot until it snaps into place.

  7. Repeat these steps for any other ink cartridges indicated in the error message.

  8. Close the ink cartridge access door.

You can refer this HP document for more assistance:- Click here


I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.


I am an HP Employee

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