| 摘要 |
PROBLEM TO BE SOLVED: To form an image with a simple operation by eliminating missing image from an original image or unintended image rotation by an operator even in the case of an original of an infinite form size by reading the original in one or more read sizes selected from choices including a fixed form size in an indefinite form size processing mode where an original of an indefinite size is processed. SOLUTION: A control means CPU receives an output of original size information from original size sensors S1, S2-S5 and T1, T2, T4, T5 as original size sensing means. The control means CPU discriminates whether an original has a fixed form size or an indefinite form size. That is, the CPU has a lookup table LUT to decide a read size of the original and decides a read size through the collation with received original size information. Or the CPU receives a condition with respect to the reading size of the original directly from an operation section OP by an operator to decide the read size. The image forming device reads the original by the decided read size.
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