Hi Jenesis_1,
I am not able to see the image you included in your post. The Bypass Tray does support A3 as a standard size. The behavior should be that when you load your paper in Bypass Tray the machine will prompt you to confirm what was loaded.
I hope this helps.
it apears i canot control the size of the page from the printers control center.
can this be done ?
thanks