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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 three 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.
• Print Cartridge Ordering Information dialog box: For a list of print cartridge
selection numbers, open the printer Toolbox, click the Estimated Ink Level tab,
and then click the Print Cartridge Ordering Information button.
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
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