Lexmark MX611
Try one or more of the following:
Note: If the printer finds a tray or feeder that has the correct size and type of paper, then it feeds from that tray or feeder. If the printer cannot find a tray or feeder with the correct size and type of paper, then it prints from the default paper source.
Here are steps to troubleshoot a 200.03 paper jam on a Lexmark MS/MXx1x series printer.