Release Notes:Installs a print driver (including PostScript print Description (PPD) and Print Dialog Extension (PDE)) for your Lexmark print on Mac OS X running 10.6.8 and later Mac OS. For ICA scanning, download the ""Image Capture Application Scan Driver for 10.6.8 and later Mac OS."" to install the scan driver for ICA. For TWAIN scanning, download the TWAIN web package to use with TWAIN- compliant applications. Instructions: Download the file. Double-click on the file to mount as a disk image. Open the disk image. Double-click the installer icon to begin installation.