If the alignment process fails, make sure you have loaded unused, plain white paper
into the input tray. If you have colored paper loaded in the input tray when you align the
printer, the alignment fails.
If the alignment process fails repeatedly, you may need to clean the printhead, or you
might have a defective sensor. To clean the printhead, see Clean the printhead.
If cleaning the printhead does not solve the problem, contact HP support. Go to
www.hp.com/go/customercare. This website provides information and utilities that can
help you correct many common printer problems. If prompted, select your country/
region, and then click Contact HP for information on calling for technical support.