HP Deskjet D1668 Printer - Manual (Page 33)

Use ink-backup mode
Use the ink-backup mode to operate the HP Printer with only one print cartridge. The ink-
backup mode is initiated when a print cartridge is removed from the print cartridge
carriage. During ink-backup mode, the product can only print jobs from the computer.
NOTE: When the HP Printer operates in ink-backup mode, a message is displayed
on screen. If the message is displayed and two print cartridges are installed in the
product, verify that the protective piece of plastic tape has been removed from each
print cartridge. When plastic tape covers the print cartridge contacts, the product
cannot detect that the print cartridge is installed.
Cartridge warranty information
The HP cartridge warranty is applicable when the product is used in its designated HP
printing device. This warranty does not cover HP ink products that have been refilled,
remanufactured, refurbished, misused, or tampered with.
During the warranty period the product is covered as long as the HP ink is not depleted
and the end of warranty date has not been reached. The end of warranty date, in YYYY/
MM/DD format, may be found on the product as indicated:
For a copy of the HP Limited Warranty Statement, see the printed documentation that
came with the product.
Cartridge warranty information 31
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