VMS Help SET, PRINTER, Qualifiers, /LP11  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /LP11 (default)

    Specifies the printer as an LP11. This qualifier provides
    information for the SHOW PRINTER command, which, in turn,
    provides the user with information about specific printers. LP11
    is the default printer type.