Lexmark Z31 Series Driver for Microsoft Windows Millennium, Windows 98/95, and Windows 3.x. Driver Version 18.104.22.168. Once downloaded, double-click the file to extract the driver and begin installation. Then, follow the on-screen instructions. For Support Information on this file visit "http://support.lexmark.com". These drivers can be downloaded from this web site free of charge. However, there will be a fee to cover materials and handling if requested from the Technical Support Center.