Use the single-cartridge mode to operate the HP Deskjet 2540 series with only one ink cartridge. The single-cartridge mode is initiated when an ink cartridge is removed from the ink cartridge carriage. During single-cartridge mode, the printer can copy documents, copy photos, and print jobs from the computer.
NOTE: When the HP Deskjet 2540 series operates in single-cartridge mode, a message is displayed on screen. If the message is displayed and two ink cartridges are installed in the printer, verify that the protective piece of plastic tape has been removed from each ink cartridge. When the plastic tape covers the ink cartridge contacts, the printer cannot detect that the ink cartridge is installed.
Exit single-cartridge mode
●Install both the black and tri-color ink cartridges in the HP Deskjet 2540 series to exit single- cartridge mode.