Thanks....i moved the printer to my laptop and told to do troubleshooting and i did. The first message was to add more paper to tray, and i did and i got a print. But when i added more paper when connected to my desktop, i got the red light. I never did the manual one sheet mode. Can u tell me how that works? How is it done...is there a slot to put a sheet of paper. Does it take the entire paper.. I noticed when i was trying to insert the sheet it activated the printer like it was going to make that print, but more than half of the sheet was in my hand like i was feeding it. I would appreciate more info on that mode.