Adding a Printer Formatter to the Printer Backend

If your new printer's data stream differs significantly from one of the numerous printer data streams currently handled by the operating system, you must define a new backend formatter.

Adding a new formatter does not require the addition of a new backend. Instead, all you typically need are modifications to the formatter commands associated with that printer under the supervision of the existing printer backend. If a new backend is required, see Printer Backend Overview for Programming in Printers and printing.