| 摘要 |
PURPOSE:To avoid a wasteful image processing operation by deciding a bend of an original from an original position coordinate, and executing a warning display, an image processing inhibition, etc. CONSTITUTION:An original is prescanned, X coordinates X1-X4 of corners P1-P4, etc. of the original are determined by a counting value of a counter responding to a variation of an image white signal of a main scanning time in the X direction, and Y coordinates Y1-Y4, etc. are determined by subscanning in the Y direction. These coordinate values are calculated through a CPU, etc., and in case when the sum of angles alpha1, beta1, etc. made by an original side in the point P1, etc. and the X axis is <=90 degrees, a bend of the original is decided. In accordance with a result of this decision, an alarm display, an image processing inhibition, etc. are executed, and a wasteful image processing operation is avoided. |
