HP Deskjet 6840 Color Inkjet Printer - Manual (Page 64)

The gray photo print cartridge can be purchased separately if it is not included with
your product.
Installing the gray photo print cartridge
To install the gray photo print cartridge, remove the black print cartridge from the
printer, and then install the gray photo print cartridge in the compartment on the right
of the print cartridge cradle.
For more information, see the
print cartridge installation page.
Using the gray photo print cartridge
To use the gray photo print cartridge, follow the steps to print a black-and-white
photo .
Storing the gray photo print cartridge
To maintain the health of the print cartridge, follow the print cartridge storage
guidelines .
6.10 Printing black-and-white photos
You can perform the following tasks with the printer:
• Print a black-and-white photo
• Print a color photo in black-and-white
For great black-and-white photos, install a gray photo print cartridge and a tri-color
printer cartridge in the printer.
Printing a black-and-white photo
To print a photo that is already black-and-white, simply follow the instructions for
the type and size of photo that you want to print.
Printing a color photo in black and white
Follow these steps to print a color photo in black-and-white:
HP Deskjet 6800 series printer User's Guide
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