I have a problem I cannot fix. The CANON i-Sensys MF4660PL printer I have is able to print double-sided, but it does not do it correctly. I have downloaded the latest printer driver from Canon (for El Capitan), and tried different drivers and settings in the printer, but after one-and-a-half hour I am inclined to give up.
THe problem is that it prints on opposite sides; so yes, it does print on both sides, but you have to turn around the page to continue reading. I have also changed the Long-edge vs Short-edge binding setting in the printing settings, and the 'Auto-Rotate' setting, to no avail.
Google does not seem to help me either... Anyone?