Specifies the paper type that the Printer will use if a PrintJob does not specify a particular type. The string should be ...

Specifies the paper type that the Printer will use if a PrintJob does not specify a particular type. The string should be expressed in the form specified by ISO/IEC 10175 Document Printing Application (DPA) which is also summarized in Appendix C of RFC 1759 (Printer MIB).