I thought before the age of the "cost per page" agreements that all systems double clicked for 11x17. I had heard many years ago a that Canon was the first to introduce a system that single clicked for 11x17 and had also heard that the single click was not the intent and it was a mistake. Anyone else hear that?
Also with testing on some of my 11x17 laser printers, they all single click for 11x17.