Lexmark C912 Service Manual - Page 133

Paper skew service check 5055-xxx FRU 1 Cassette Action Remove the tray and turn it upside down. The tray guides are connected at the center of the tray by a toothed gear that ensures they move in unison. If not, remove the screw at the center of the gear and, using a sheet of paper in the tray as a template, realign the guides. Reseat the roller at the leading edge of the transfer belt. Make sure the correct amount of paper is in the tray and that it is under the corner bucklers. The paper lift tray must be pushed down to the lock position every time the drawer is closed. Paper tray missing service check FRU Action 1 • Size sensor actuators Check to ensure that the paper size • Cassette adjustment is correct for the paper being used. Ensure that the paper size sensor actuators are not bent or broken. Make sure that there are no broken parts on the cassette that would allow the cassette to move or shift from it's intended position inside the printer. 2 • Size sensor board • Expansion paper feeder control board • Printer controller board Be sure that connector CN2 on the printer controller board is connected properly. Also check CN4 on the expansion paper feeder control board for the associated tray. Diagnostic information 2-83