I've been using a stylus 1400 for about 5 years now. I haven't used it in about 6 months. When I tried to print and image yesterday, there were stripes of various lengths across the entire page. Even after printing several test pages, they all have the same marks in exactly the same places on each page. I did nozzle checks, head cleaning, and print head alignments and also installed new ink cartridges, but that had no effect. Any ideas as to what may be the issue? Thanks.