Image position correcting method, image position correcting jig, and image formation device

摘要

Paper (41) on which a first reference image (31) is formed in an image forming section (300), and a correction instrument (1) on which a second reference image (33) is formed, are placed at predetermined positions on an original platen (210). Reference images (31, 33) are read as an image for correction by an image reading section (200). An error in the image reading section (200) is measured based on the second reference image (33) of the correction image. The first reference image (31) of the correction image is used to remove the error in the image reading section (200) from the measured error, resulting in an error in the image forming section (300).