My printer is printing a strange line at the same point of every page, about 90% down an A3 page. Its like the quality of the print is reduced for about 8mm almost at the very end but then it goes back to normal printing. I have tried all the usual fixes...nozzle cleaning, plates cleaning, changing the inks... I dont know what could be causing this problem. I have printed about 50 pages and all are the same, have tried different images and nothing...help!? I have attached an image of what I mean as its very hard to explain.