If you want to print in OSX you need gimp-print which you can find here:
http://gimp-print.sourceforge.net/MacOSX.php3
Epson has only MacOS9/Classic drivers for the 1520. howerver, they are better than the gimp-print drivers - faster and better control over quality options.
http://www.epson.com/cgi-bin/Store/support/supDetail.jsp?BV_UseBVCookie=yes&oid=14435&prodoid=10201&...
One way to work around this is to create PDFs from Archicad / PM in OSX and then print in Classic using a Classic-compatible (pre 6 I think) variant of Acrobat Reader (Get Info in Finder, select Open in Classic). Those are still available from
www.adobe.com.
i'm not sure if these drivers handle the jetdirect network option. You might have to connect the printer's serial port directly to a host computer using an USB-to-serial adapter. (If I remember correctly, Kensington's "mac-compatible" adapter doesn't work in OSX, but Belkin's and other cheap PC-specific no-name-brands do!)
I may be wrong, but I believe that the only way to get this printer to work over the network is to install Epson's old software Postscript (Classic-only, but I don't think it's available anymore) on a host running Classic.
Then, it might work to share the printer using the system's Printer Sharing option. I did this with a stylus Photo EX. Very slow, cumbersome and error-prone solution.
AC4.1-AC26SWE; MacOS13.5.1; MP5,1+MBP16,1