The process of downloading the Lexmark XM1135 MFP Firmware LW50.SB2.P543/FDN.PIR.E618 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Lexmark XM1135 MFP Firmware LW50.SB2.P543/FDN.PIR.E618 driver from the primary server - this is the manufacturer’s LEXMARK official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Lexmark XM1135 MFP Firmware LW50.SB2.P543/FDN.PIR.E618 diver.