My hp ljp2055 keeps saying to install black cartridge but cartridge is in.Do you have any ideas why?

SOURCE: cannot get the printer to accept the new HP black cartridge

On my officejet 5510, I decided that the printer was toast and decided to throw it out and buy a new one. After making that decision, I decided to pound on top of it it a few times. Guess what??? You guessed it.....it reset itself and started back working. That was about 6 weeks ago and I haven't had a problem since. I have since turned it off and on many times, and it works like a charm. GO FIGURE!! (I only recommend this to those who have given up and are planning to trash it anyway).

SOURCE: Hp Office jet print cartridge error

I have a 7410 that is 16 months old with the same problem. It is not a broken spring. Spent over an hour on chat attempting to trouble shoot. HPs only solution was to sell me an "upgrade" for over $300 (which is more than I paid for this piece of junk.)

I expect "top of the line" products to last quite a bit longer than that. The worst thing is that with this error popping up, it is absolutely useless for anything else like scanning or outbound fax.

It should be called an "all or nothing" printer.

SOURCE: HP PSC 750 message says error, black ink cartridge installed incorrectly.

Just replace the cartridge.

SOURCE: HP C6280 says out of black ink

Something is wrong with your Blach carrier or connections. Use a bit of alcohol and clean the array of gold contacts where the Ink cartridge plugs in. Most of the pins are shutter and piezo control (get the ink on paper) but a few do other stuff like check ink level, # of hours runtime, etc. This is very common problem with inkjet printers. Hope this helps.
Also... rub the contacts on the printhead with a pencil eraser to make them shiny and bright.

Cheers!

SOURCE: printer keeps saying "INSTALL BLACK CARTRIDGE".

If you are using Windows.
Go into "Start", "Printers and Faxes".
Right click on the printer icon.
Click properties.
Look for reset cartridge.
Or something similar.
That should fix the problem.