black ink cartridge not printing or showing hp photosmart 7510 printer
have hp photosmart 7510 printer. have problems with the black ink cartridge not printing or showing any ink volume even though is brand new. not sure what you mean by “make black photocopy” when i replaced all cartridges, the ink status report shows ink in all the cartridges except the Black XL. i need to determine why it is not working.