Did you try manually feeding one page at a time? that is the only way I can get it not to jam up the printer/copier. If I put the thin paper into the auto feed tray, I have problems. I buy newsprint from Blicks in a 9*12 size pad and have to trim it down to 11x8.5 so it will fit in my home printer/copier. I took it to work to see if that would be better (we have several different machines at work) and had the same problems.