I have been using my DesignJet 3500 CP for large format printing for the past few years. For the past week I have been trying to print a simple 20'x2' banner that is only about 2 MB file size. It does the initial printhead check, shows the printer is receiving and then it just starts feeding the paper through without printing the banner that was created in PhotoShop. I used it just recently for another job and it worked just fine. Anyone have any ideas. This banner is for my daughter's birthday on Friday and so I am desperate to find a solution. Thank you!