Apple LaserWriter IIg 300 300 EP-S Toner Cartridge, same as HP Laserjet series http://www.info.apple.com/info.apple.com/applespec/applespec.taf?cat=printer&RID=20 us-ascii A Postscript In the Printer set switch (0-9) to 5 In the linux box use the generic postscript driver, use /dev/ttySx