DATA_TYPE=data-type-name

    Specifies which translator, if any, the print symbiont invokes.

    Data-type-name can be ANSI, ASCII (same as ANSI), AUTOMATIC,
    DDIF (bitonal image subset only), PCL, REGIS, TEK4014, POSTSCRIPT,
    or PROPRINTER.  If the data-type-name is POSTSCRIPT, no translator
    is invoked.

    If you do not specify DATA_TYPE, it defaults to AUTOMATIC.  With
    AUTOMATIC, the data type of the file is determined by the file
    extension and the contents of the file.