The AP3 CUPS Driver Installation CD contains 2 files and 7 folder that are
            readme.htm and SoftwareLicense.txt and seven folders called MAC10.5, MAC10.6, MAC10.7, MAC10.8_10.10, MAC10.11, images and AP3
MAC10.5
            This folder contains CUPS Driver for AP3 Printer MAC OS 10.5
MAC10.6
            This folder contains CUPS Driver for AP3 Printer MAC OS 10.6
MAC10.7
            This folder contains CUPS Driver for AP3 Printer MAC OS 10.7
MAC10.8_10.10
            This folder contains CUPS Driver for AP3 Printer from MAC OS 10.8 to MAC OS 10.10
MAC10.11
            This folder contains CUPS Driver for AP3 Printer MAC OS 10.11
readme.htm
            Is a html based user manual for AP3 CUPS Driver
images
            This folder contains some images and html files, which are useful for readme.htm file
AP3
            This folder contains Postscript Printer Description file for AP3 Printer
If you are very new to CUPS. Kindly go to http://127.0.0.1:631/help/ This will give you overall information about CUPS
if you are installing AP3 CUPS Driver please refer readme.htm carefully before begins installation.
This AP3 CUPS Driver will Supports All MAC OS version between 10.5 and 10.11
          Run the following Commands
                    ls /usr/share/cups/model/AP3
                    ls /usr/libexec/cups/filter/rastertoAP3_
Successful returns of all 2 commands will indicate successful installation of AP3 CUPS Driver
Thank You for Using Our Printers. Have Nice Printing With AP3