Lexmark B2236
Open the manual feeder.
Adjust the guide to match the size of the paper that you are loading.
Load a sheet of paper with the printable side faceup.
Warning—Potential Damage: To avoid paper jams, do not force paper into the manual feeder.
Adjust the paper guides and make sure that paper is loaded properly to avoid misfeeds.
Follow these steps to find the serial number of the printer.