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Solution If you have color or photo paper loaded in the input tray when you align the printer,
the alignment might fail. Load unused plain white letter or A4 paper into the input tray, and then
try the alignment again. If the alignment fails again, you might have a defective sensor.
Contact HP Support. Go to:
www.hp.com/support
If prompted, choose your country/region, and then click Contact HP for information on calling
for technical support.
Cause The print head assembly or sensor is defective.
Solution Contact HP Support. Go to:
www.hp.com/support
If prompted, choose your country/region, and then click Contact HP for information on calling
for technical support.
Replace ink cartridges soon
Cause This warning indicates one or more ink cartridge is out of ink.
Solution You might be able to continue printing for a short period of time with ink remaining
in the print head assembly. Replace the indicated ink cartridge(s) or press OK on the control
panel to continue.
For more information, see:
Replace the ink cartridges
Wrong ink cartridge(s) installed
Cause The wrong ink cartridge(s) are installed.
Solution The first time you set up and use the HP All-in-One, make sure to install the ink
cartridges that were shipped with your device. The ink in these ink cartridges is specially
formulated to mix with the ink in the print head assembly.
To resolve this error, replace the affected ink cartridge(s) with the ink cartridges that were
shipped with the HP All-in-One.
For more information, see:
Replace the ink cartridges
Ink cartridge is missing, incorrectly installed, or not intended for your device
Cause One or more ink cartridges are missing.
Solution Remove and reinsert the ink cartridges and verify that they are fully inserted and
locked in place.
Cause One or more of the ink cartridges are not installed or are installed incorrectly.
Solution Remove and reinsert the ink cartridges and verify that they are fully inserted and
locked in place. If the problem persists, clean the copper-colored contacts of the print
cartridges.
Cause The ink cartridge is defective or not intended for use in this device.
Solution Replace the indicated ink cartridge(s) immediately so that you can resume printing.
If there are no ink cartridges missing from the HP All-in-One, the ink cartridge contacts might
need to be cleaned.
If there are no ink cartridges missing from the HP All-in-One, and you still receive this message
after cleaning the ink cartridge contacts, you might have a damaged ink cartridge. Contact HP
customer support. Go to:
www.hp.com/support
Chapter 2
32 HP Photosmart C5100 All-in-One series
Troubleshooting and support