HP Deskjet Ink Advantage 2645 not Printing
Open the printer cartridge door of the Deskjet Ink Advantage 2645 printer. Take the black cartridge out and inspect the contacts for any leaks and change them. Remove the printhead from the carriage and check it for any damage. Replace it if required. Else, clean the printhead contacts using a lint-free cloth.For more information HP Deskjet 2645 troubleshooting guidelines.