I am getting lines or streaks when copying or scanning - what do I do?
In over 99% of cases, when you get lines or streaks when copying or scanning through the top portion of your copier/MFP, it is due to some residue on the ADF glass of your machine. See the below video for how to resolve this:
HAVING TROUBLE WITH AN HP LASER PRINTER? Here's a guide to help you quickly fix the most common problems.