Problem:
Some duplex printing jobs unexpectedly print pages upside down.
Solution:
Override the appropriate page orientation from your printer driver.
Details:
Computer System:
* Apple 15″ MacBook Pro Retina (Mid 2012)
* 2.7 GHz Intel Core i7
* 16 GB 1600 MHz DDR3 RAM
* OS X 10.9.1 (13B42)
Some duplex
