prtmarkerwestmargin 1.3.6.1.4.1.11.2.3.9.4.2.2.10.2.1.13

The margin from the West edge (see prtMarkerNorthMargin) of the medium in units identified by prtMarkerAddressabilityUnit. Printing within the area bounded by all four margins is guaranteed for all interpreters. The value (-2) means unknown.