Use the single-cartridge mode to operate the HP ENVY 4520 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 ENVY 4520 series operates in single-cartridge mode, a message is displayed on the printer display. 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 plastic tape covers the ink cartridge contacts, the printer cannot detect that the ink cartridge is installed.