Class MediaSizeName is a subclass of Media.
This attribute can be used instead of specifying MediaName or
MediaTray.
Class MediaSizeName currently declares a few standard media name
values.
IPP Compatibility: MediaSizeName is a representation class for
values of the IPP "media" attribute which names media sizes. The names of the
media sizes correspond to those in the IPP 1.1 RFC
RFC 2911
extends