HP Officejet 7612 Wide Format e-All-in-One - Manual (Page 298)

Use black ink only?
The cartridges listed in the message are out of ink.
Solutions: To print in color, replace the empty cartridges. For information about how to install new
cartridges, see Replace the ink cartridges on page 92.
To temporarily print using Black ink only, click Use Black Only. The printer will replace color with
grayscale. The empty cartridges will need to be replaced soon.
CAUTION: Do NOT remove the empty color cartridge to print in Use Black Only mode.
ENWW Use black ink only? 281