I have an Officejet Pro 1150C and it is printing crooked on the page. Here is what I have tried so far.
I have cleaned the pickup rollers.
I have lightly sandpapered the pickup rollers.
I have removed and reinserted the paper tray many times.
I have run the self-test page and it doesn't line up properly.
I have printed colored blocks on both sides of the page and it seems to start slightly skewed left and finish slightly right.
I am going to now reboot and try cleaning and aligning the cartridges again.
Any more suggestions?