Lexmark Z42 (4101-002) / Z43 Custom Driver for Microsoft Windows XP. Once downloaded, double-click the file to extract the driver. This driver must be installed through the Add Printer Wizard. Contact Lexmark at http://support.lexmark.com for support information on this file. 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.