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

       /HARDCOPY
       /NOHARDCOPY

    Controls whether the device is established as a hardcopy terminal
    and outputs a backslash (\)  when the Delete key is pressed. The
    /HARDCOPY qualifier is equivalent to the /NOSCOPE qualifier.