My HP printer stopped printing black ink.?

Ink has dried out in the print head because you left the printer switched on which not in use (which leaves a small electrical current in the print head; as a side effect, it heats the print heads very slightly). HPs of that age are prone to this fault.

Take a cotton bud, dip it in pure cleaning alcohol, rub the print head very gently. Leave no fibres behind.

HP 6500 printer is a dud. Will not print in black. Cleaned print head, bought new print head, paid for new ink cartridges 3X. My previous HP printer was old but reliable. Never a problem. Of course HP did not have an adapter so I could not hook it up to my new laptop. Today I am buying a new laser printer and it will be another brand.

Use the printer program to do some " ink purging" if it still does not support then it perhaps a crisis in ur printer not the ink cart. BTW, did the printer prompt to exchange the ink cart in the first location. If there wasn't any prompt - did u take out the cart and evaluate the weight with a brand new one. Used to be it very light or now not a lot ?? Possibilities are the historic cart still has ink left in it !!

I remove the entire print head and soaked it in water. I removed all of the dried ink on the print head and replaced it. It is printing fine now. HP printers are good printers. I owned on lexmark and it was garbage. Canon's don't even make the list.

If your diagnostics test pages don't show your black being printed. I would venture to say that the printer is not receiving the appropriate signals from the printer to use the BLACK ink. Your best bet is probably to get a replacement Printer. (( at least they're fairly cheap now-a-days ))

HP printers suck. I haven't seen even 1 that didn't self-destruct at some point.

Go buy a Canon or a lexmark

is your printer a black and white priner, if it is so, your printer is out of order.