I am running an old Ryobi 2800 lately the paper is jamming in the feeler fingers. I can run it with the feeler fingers in the up position and have no problems unless I get a misfeed then I just clean the back cylinder and get back on running. But For some reason, the paper stack is just too high and I cannot get it to lower anymore. I know the height adjustment but I have that all the way down and the stack is still too high. Any suggestions would be helpful. Thanks.