The touch screen on my Samsung C1860FW printer is white with the Samsung logo, and I can't get the main menu back no matter what I do. I have tried powering it off, unplugging it, holding the power button down for 30 seconds. Even tried the holding 1,2 and 3 down simultaneously that someone suggested. Still have the white screen, so I can't copy, scan or anything. Interestingly, the printer works fine when I send a document to print to it from my pc.