/sys$common/syshlp/helplib.hlb SET, PRINTER, Qualifiers, /LOWERCASE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /LOWERCASE
       /NOLOWERCASE

    Indicates whether the printer prints both uppercase and lowercase
    letters or only uppercase. When the operator specifies the
    /NOLOWERCASE qualifier, all letters are translated to uppercase.

    The /[NO]LOWERCASE and /[NO]UPPERCASE qualifiers are
    complementary; that is, the /LOWERCASE qualifier is equivalent
    to the /NOUPPERCASE qualifier, and the /NOLOWERCASE qualifier is
    equivalent to the /UPPERCASE qualifier.