/sys$common/syshlp/helplib.hlb DEFINE, /CHARACTERISTIC, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  $ DEFINE/CHARACTERISTIC REDINK 3

      The DEFINE/CHARACTERISTIC command in this example defines
      the characteristic REDINK with the number 3. When a user
      enters the command PRINT/CHARACTERISTICS=REDINK (or PRINT
      /CHARACTERISTICS=3), the job is printed only if the printer
      queue has been established with the REDINK or 3 characteristic.