pr-buffer-name-ignore

pr-buffer-name-ignore is a variable defined in `printing.el'.
Its value is

("\\*Printing Interface\\*" "^ .*$")

Documentation:
Specify a regexp list for buffer names to be ignored in interface buffer.

NOTE: Case is important for matching, that is, `case-fold-search' is always
nil.

It's used by `pr-interface'.

You can customize this variable.