The bidirectional communication capability allows the driver to automatically detect and update the installed options both at install time and upon user request. This allows the driver to adapt to the various capabilities of our different printers, but unlike other universal print drivers, the network traffic is minimal. With only one package to manage, testing and internal certification of print drivers is simplified by the use of the Sharp Universal Printer Driver packages. Time spent on installation, both on servers and workstations, is greatly reduced, and hard drive space formerly occupied by many product-specific drivers is now diminished significantly.
Sorry to hijack this thread, but I am having the same problems. Things were fine with XP, but now am on Win 7, the driver doesn't seem to work properly. The printer is a Colorqube 9202PS, and the driver is version 5.145.12.0N
Basically what happens is that the driver completely ignores the page size from the application, and you have to manually select the page size/tray in the actual printer driver. If you don't want A4, you have to do this each time you print. If you have documents that use both A4 and A3, you have to manually go through the document, printing page at a time, changing the page size in the driver!!!
Also note that on the HP and Sharp printers, the driver works fine under Win 7; when you print a document, the printer uses the correct paper, even if the document has many page size changes through it, so it doesn't seem to be a Win 7 / application problem, but a problem with the driver.