I got a cheap Xerox Phaser 3117 but for my dissapointment, there were no drivers for Mac OS X.
The solution is to install the Samsung GDI driver to use the printer. Once I did that, the printer worked like a charm.
The Samsung GDI driver for Mac OS X is open source and can be found at:
If you're having trouble with top margins, here's a new driver:
You will have to uninstall and reinstall your printer.
I know this driver also works with:
Dell 1100, 1110
Samsung CLP-200, CLP-300, CLP-500, CLP-600, CLP-610, CLX-216X, CLX-2170, CLX-3160, ML-1510, ML-1520, ML-1610, ML-1630, ML-1710, ML-1740, ML-1750, ML-2010, ML-2150, ML-2250, ML-2510, ML-2550, ML-2571, ML-3050, ML-3560
Xerox Phaser 3115, 3116, 3117, 3120, 3121, 3122, 3130, 3150, 3420, 3425, 5500, 6100, 6110