I have a Canon IRC2620.The screen was smashed .I replaced the entire control panel .Ran the customers job using the saddle stitcher , had a paper jam.The control panel is now locked up .The only button that works is the one to adjust the contrast of the screen.Pulled the power plug,waited a few minutes.Canon logo comes up and the bar increases and the panel looks normal, but the touch screen doesnt respond.Any ideas?