I have an Epson 545 printer. I've had it for about a year. It was installed on Windows and worked very well. I was able to perform manual two sided printing with no problem but now that i installed the printer on my iMac ( 3 weeks old), I no longer have the option to do 2 sided printing. I called Epson support and was told Mac did not support 2 sided printing on this model Epson printer. I have downloaded the latest Epson drivers and still no 2 sided printing. I can use my wives PC and it works great. Is there an update from Mac that will help me with this?