| 摘要 |
<p>A printing system produces prints from a print job written in one of a plurality of page description languages with the print job assuming the form of a print job stream. The printing system includes a page description language guesser (700) having a plurality of PDL analyzing units (702-1...702-N) for sampling the print job stream, each PDL analyzing unit outputting an information signal which provides information regarding the print job stream. The PDL guesser, which receives the information signals, processes the information signals and outputs a filtered signal which indicates the page description language in which the print job is written. The page description language (PDL) guesser determines the PDL or Image Format of the data sample of the document on a spooler (410). The guesser (700) then sets the PDL as an attribute on that document for the scheduler to read and the supervisor to direct the document to the appropriate printer for that PDL. <IMAGE></p> |
