The process of downloading the Lexmark XM1145 Printer Firmware LW20.SB4.P231 FDN.PIR.E309 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 XM1145 Printer Firmware LW20.SB4.P231 FDN.PIR.E309 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 XM1145 Printer Firmware LW20.SB4.P231 FDN.PIR.E309 diver.