In the stacker, we experience turned up edges on the sheets. What causes the sheets to fold this way?
Turned up edges are caused by too much up curl in the web. Adjust the amount of decurl accordingly until you get a flat sheet.
Turned down corners can be the result of not enough bottom delivery tapes supporting the sheet. This occurs most frequently along the slit edges of the sheet. Move the bottom tapes to within an inch (25 mm) of the side edge.
