Konica Minolta C250P - Manual (Page 144)

Specifying printer driver settings 3
C250P 3-11
To print, load 11 × 17 paper in the tray (“Tray 1” or “Bypass Tray”) that is
specified in the printer driver, and then select “Paper Tray” in the control
panel and follow the steps described below to specify the paper size for
the paper tray that is used.
Select [8 1/2 × 11 W].
Enter the 11 × 17 paper size in [Oversize Paper].