| 摘要 |
The present invention checks the paper size of input document images one by one, and cancels the stapling process when the documents have different widths in the main scanning direction. When the documents have the same width in the main scanning direction, the maximum number of the documents that can be stapled is set to be the value which is set when the documents have different sizes. Therefore, even if it is not preliminarily known whether the documents have the different sizes, the appropriate stapling operation can be executed, the received document images can be sequentially printed, and thereby the processing ability can be improved.
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