I would also like more flexibility in printing Gantt charts.
One possibility is to use a browser window capture utility like FireShot. (I'm not sure that this would work.) Utilities like FireShot do a capture of an entire webpage, including the out-of-view areas that you have to scroll to see, and save the capture to a file or to the clipboard. FireShot has a spot on my IE8 toolbar, and the Aras Innovator window deletes the toolbar and everything else. Bummer. However, if you can find a browser capture utility that uses a hotkey (like Shift-Ctl-Alt-P), that may do the trick for you.
*bump*