The PRINT command accepts the /PARAMETERS qualifier to specify functions
  unique to printing on PostScript printers with HP DECprint Supervisor for
  OpenVMS software.

  Format:

  $ PRINT /PARAMETERS=(parameter[,...]) file-spec

  If you specify only one parameter, you can omit the parentheses.  If you
  specify two or more parameters, separate them with commas and enclose the
  set in parentheses.

  If you specify a parameter that contains special characters or delimiters,
  enclose the parameter in double quotation marks (" ").

  If the value associated with a parameter contains delimiters, such as
  commas or parentheses, enclose the value (or the entire parameter) in
  double quotation marks.

  The following examples are valid notations:

  $ PRINT /PARAMETERS=(PAGE_SIZE=A,SHEET_SIZE=A4) file-spec

  $ PRINT /PARAMETERS=(PAGE_LIMIT="(1,4)",MESSAGES="(PRINT,KEEP)") file-spec