CUPS drivers are only used on OS X when there aren’t any official drivers made available by the vendor. That’s mostly the case for very old printers (pre-OS X o

CUPS drivers are only used on OS X when there aren’t any official drivers made available by the vendor. That’s mostly the case for very old printers (pre-OS X or non-USB). With CUPS drivers, you can get a printer to work, but the experience is nowhere near as good as using official drivers. So no, printer support on OS X and Linux is not equal.