IMAGE FORMING DEVICE, IMAGE MAGNIFICATION CONTROL METHOD AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To make a book-bound substance fit to the size of copying paper set in an inserter without troublesome setting by automatically deciding the size of the paper and performing the appropriate magnification of an image in accordance with the size of the paper, and to easily execute jamming processing even if the fed paper is jammed in the inserter by feeding the paper after completing to house the paper in the inserter in the case of performing bookbinding operation using the inserter. SOLUTION: This device is provided with a finisher control part 501 which discriminates the size of paper for postprocessing according to the detected result by a paper feeding sensor, and a CPU circuit part 150 which selects the size of paper for forming an image at the time of forming the image according to the results of the discrimination of the size of an original and the decision of the size of the paper for postprocessing and decides the magnification at the time of forming the image according to the result of the comparison of the size of the paper for forming an image with the size of the original.