(1) One of the four corners of the physical medium (usually paper) where printing begins.
(2) The first hardware addressable point on the physical sheet.
(3) The reference point from which the logical page origin is positioned by the medium map. This point is represented by Xm=0, Ym=0 in the Xm, Ym coordinate system. The media origin is defined relative to the top-left corner of the form. See also logical page origin.