HP Officejet 7110 Wide Format ePrinter - H812a - Manual (Page 206)

Black cartridge out of ink
The black cartridge is out of ink.
Solutions: Replace the black ink cartridge. For information about how to install new cartridges, see
Replace the ink cartridges on page 45.
To temporarily replace black with color, click Cancel Print and re-send the print job. The Use color ink
only? message appears before the job prints. The black cartridge will need to be replaced soon.
CAUTION: Do not remove the empty black cartridge to print in Use Color Only mode.
ENWW Black cartridge out of ink 193