lpr-page-header-switches

lpr-page-header-switches is a variable defined in `lpr.el'.
Its value is

("-h" "%s" "-F")

Documentation:
List of strings to use as options for the page-header-generating program.
If `%s' appears in any of the strings, it is substituted by the page title.
Note that for correct quoting, `%s' should normally be a separate element.
The variable `lpr-page-header-program' specifies the program to use.

You can customize this variable.