| 摘要 |
A printing system (200) includes a computer (102) which presents a document file (235) for printing as a multi-page print job, and a plurality of print engines (210) accessible by the computer. A controller (230) identifies, for each page to be printed of the print job, a next-available print engine (212, 214, 216, 218) and causes the identified print engine to print the page. A collating apparatus (220) has input trays (225) for receiving pages of a multi-page print job, output trays (259) and a controller (230) to cause the collating apparatus (220), to draw pages from the input trays (225), sort or collate the pages, and place the pages in the output trays (259) in the form of the print job. Each print engine (210) may print a cover sheet carrying a bar code representing the pages printed by that print engine (210). The bar codes are read by readers connected to the controller (230).
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