My girlfriend recently purchased me a 4 color 1 station acreenprinter. I have only one issue with it, which is pretty difficult to describe with out pictures. When I pull down the screen onto the platten, the arm of the screen wiggles? There are 2 bearings that the arm falls into that I assume are supposed to keep it into place, but they’re so far apart that the arm wiggles around, making it impossible to have a print show up in the same area of the tee. How can I fix this?? Thanks!!