HP Deskjet F2140 All-in-One Printer - Manual (Page 129)

Cause: One or both of the print cartridges are not installed or are installed
incorrectly.
Solution: Remove and then reinsert the print cartridges. Verify that they are fully
inserted and locked in place.
If the problem persists, clean the copper-colored contacts of the print cartridges.
For more information on print cartridges, see
Print cartridge troubleshooting .
Cause: The print cartridge is defective or not intended for use in this device.
Solution: To find support and warranty information, go to the HP Web site at
www.hp.com/support . If prompted, choose your country/region, and then click
Contact HP for information on calling for technical support.
Printing in ink-backup mode
Cause: When the HP All-in-One detects that only one print cartridge is installed,
ink-backup mode is initiated. This printing mode lets you print with a single print
cartridge, but it slows the device and affects the quality of printouts.
Solution: If you receive the ink-backup mode message and two print cartridges are
installed in the HP All-in-One, verify that the protective piece of plastic tape has been
removed from each print cartridge. When plastic tape covers the print cartridge
contacts, the device cannot detect that the print cartridge is installed.
Print cartridge is faulty or not installed properly
Cause: The printer cannot print if the print cartridges are faulty, or if they are not
installed properly.
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