My linux printing solution...

lprint.py

#! /usr/bin/env python
import sys,os,subprocess
import climate

def printer(filename,printer_ip= "192.168.0.50"):
    _rc0 = _rcr1, _rcw1 = os.pipe()
    if os.fork():
        os.close(_rcw1)
        os.dup2(_rcr1, 0)
        subprocess.call(["nc",printer_ip,"9100"],shell=False)
    else:
        os.close(_rcr1)
        os.dup2(_rcw1, 1)
        subprocess.call(["gs","-sDEVICE=ljet4","-q","-dNOPAUSE","-dSAFER","-sOutputFile=-",str(sys.argv[1]),"-c","quit"],shell=False)
        sys.exit(0)

if __name__ ==  '__main__':
    climate.call(printer)