HP Deskjet 6620 Color Inkjet Printer - Manual (Page 16)

Using print cartridges
Everyday printing
Use the black and tri-color print cartridges for everyday print jobs.
For more vibrant colors when printing color photographs or other special documents,
remove the black print cartridge and use a photo print cartridge in combination with
the tri-color print cartridge.
For outstanding black and white photographs, remove the black print cartridge and
use a gray photo print cartridge in combination with the tri-color print cartridge.
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.
HP Deskjet 6600 series printer User's Guide
16