HP Deskjet 3740 series printer User's Guide

Replacing print cartridges

When buying print cartridges, look for the print cartridge selection number. You can find the selection number in these places:

Selection number label: Look at the label on the print cartridge that you are replacing.

1.Selection number label

Printer documentation: For a list of print cartridge selection numbers, see the reference guide that came with the printer.

HP Inkjet Toolbox: Open the HP Inkjet Toolbox, and then select the Supplies panel.

If a print cartridge runs out of ink, the printer can operate in the ink-backup mode.

For information about installing a print cartridge, see the print cartridge installation page.

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 cartridge cradle.

For instructions about removing a print cartridge, see the print cartridge installation page.

Ink-backup mode output

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

9

Page 9
Image 9
HP 3740 manual Replacing print cartridges, Ink-backup mode output