Where do I find ppds?

Hello community,

I'm setting up print queues on our current Solaris 10 T3-1.  I was directed on this community to use CUPS which is available from opencsw.org, and I've successfully set up almost all of our HP LaserJets on it.  Unfortunately I've struggled to get it to work with newer HP models.  The PPD files on CSWcups are four years old or older.  I'm trying to set up a HP Laserjet P1606dn, but nowhere on the Internet can I find a PPD file for it (nor can I find one with the ppds on Solaris). Honestly, all I want to do is print plain text files to it, but