| 摘要 |
PROBLEM TO BE SOLVED: To respectively reduce the processing burden of an image forming device and the work burden of a user when performing plural kinds of printing processing in different paper sizes to papers in the same size. SOLUTION: A host computer 1 respectively adds paper sizes concerning image data in the print data of respective printing jobs to these print data and manages the paper size for each printing job. When the print data of plural designated printing jobs are retrieved out of print data, the paper size is reset to these respective retrieved print data, the respective image data of the respective print data are outputted after being reduced or enlarged into the reset paper size on the basis of the managed paper sizes, and a laser printer 2 respectively prints images based on the respective image data reduced or enlarged by the host computer 1 on the papers in the reset paper size.
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