HP deskjet 3840 Manuale Utente

4.5 Ink-backup mode

In the ink-backup mode, the printer operates by using only one print cartridge. The

ink-backup mode is initiated when a print cartridge is removed from the print

Ink-backup mode output

Printing in ink-backup mode slows the printer and affects the quality of printouts.

Installed print cartridge Result
Black print cartridge

Colors are printed as grayscale.

Tri-color print cartridge Colors print but black is grayed and is not a true black.
Photo print cartridge

Colors are printed as grayscale.

Note: It is recommended that you do not use the photo print cartridge for ink-

backup mode.

Exiting ink-backup mode

Install two print cartridges in the printer to exit ink-backup mode.
For instructions about installing a print cartridge, see the

page.

HP Deskjet 3840 series printer User's Guide