officepro6968

[Miriam2940]

The printer refuses to acknowledge new 902 ink cartridge.  I've tried unplugging the printer from the wall, turning on & off the printer, & installing removing & reinstalling the cartridge but still get the message one or more cartridges are missing or damaged.  These are new cartridges out of the box, both 902 & 902xl get the same messager 

[BeemerBiker]

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

You may need to inspect the copper contacts for debris; both on the cartridge and the printhead.  use a Q-Tip and technical grade alcohol.  Official HP advice on cleaning. 

Staples has advice for their store bought cartridges. Click here and enter HP and the cartridge ID

There is a possibility the ink is not genuine.  I am just guessing, but these thing do happen..

To check if an HP ink cartridge is genuine, look for a security label on the cartridge, scan the QR code on the label with your phone, and then go to HP's website hp.com/go/ok to verify the serial number on the label; if the label appears tampered or the serial number doesn't validate, the cartridge is likely not genuine.

Non HP ink can be used on this list of HP printers.
General ink cartridge help
The below type is unlikely to work.