ps-printer-name-option

ps-printer-name-option is a variable defined in `ps-print.el'.
Its value is

"-P"

Documentation:
Option for `ps-printer-name' variable (see it).

On Unix-like systems, if `lpr' is in use, this should be the string
"-P"; if `lp' is in use, this should be the string "-d".

On MS-DOS and MS-Windows systems, if `print' is in use, this should be
the string "/D:".

For any other printing utility, see its documentation.

Set this to "" or nil, if the utility given by `ps-lpr-command'
needs an empty printer name option--that is, pass the printer name
with no special option preceding it.

This variable is used only when `ps-printer-name' is a non-empty string.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 21.1 of Emacs.