Solution: If the HP All-in-One is not properly connected to the computer, communication errors can occur. Make sure the USB cable is securely connected to the HP All-in-One and the computer, as shown below.

For more information, see:

“Communication problems over a USB connection” on page 91

Print cartridge messages

The following is a list of print cartridge error messages:

•Ink low

•Need alignment or alignment failed

•Print cartridge damaged or missing

•Print cartridge is missing, incorrectly installed, or not intended for your device

•Print cartridge is not compatible

•Print cartridge is not intended for use in this device

•Wrong pen in slot

Troubleshooting

Ink low

Cause: At least one of the print cartridges is estimated to be low on ink and might need to be replaced soon.

Solution: Have a replacement cartridge on hand to avoid printing interruptions. You do not have to replace the cartridge until print quality deteriorates. If you have installed a refilled or remanufactured print cartridge, or a cartridge that has been used in another printer, the ink level indicator will be inaccurate or unavailable.

For more information on print cartridges, see “Troubleshoot print cartridges” on page 95.

Need alignment or alignment failed

Cause: The incorrect type of paper is loaded in the input tray.

Errors 151