Amendment mannered null manuscript conveying means of the image processing device, and the manuscript detection sensor which have the image reader and

摘要

PROBLEM TO BE SOLVED: To read even the original other than a regular size without generating read errors and without disturbance no matter where in the original insertion range of a device the original is placed in an original moving image reader. SOLUTION: The respective sensors 3, 7 and 17 of original insertion, resist and intermediate are arrayed at five parts with a prescribed interval in a direction orthogonal to an original carrying direction and original carriage by a stepping motor 28 and a CL 30 and read by a linear sensor 8 and controlled without disturbance by a control circuit 25 for receiving sensor output without detection error no matter where in an insertable range the original other than the regular size is set. Also, the black part of an original back surface plate is turned to a background by the changeover of an SOL 14, an original tip part is read by the linear sensor 8, an original width is detected in the detection circuit 23and the read of the original other than the regular size is coped with.