Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
I think that, under the circumstances, there is one thing to do first, and one thing to ask:
- the thing to do is, to find the Maintenance function of 'Head Cleaning' for the printer, either in the printer's menus or in the printer's supplied software made by HP for the printer, and run a cleaning cycle, or two, then try printing again.
- and what I have to ask is, How old is the printer? and, have you already tried installing new cartridges? (This problem may not be owing to the cartridges at all, *if* the lines are present across the whole of the printed image, and are very evenly and fairly closely spaced.)