Hi guys. I'm having the following error message on a xerox 3220 : LSU Hsync error - cycle power off. I changed the formatter and lsu; i put in a 3210 formatter and lsu. THe problem now is this : it gives the same message and the page comes out blank. The mfc came with the following problem : it printed one page and then gave the message i was talking about. The polygon motor is spinning, i can hear it. Do you think it can be the power supply? I can think of nothing else. Tried with other firmware, factory resets : same thing.