1. An image inspection apparatus that inspects a read image generated by reading a printed image formed on a cut recording sheet, the apparatus comprising a processor configured to: obtain a preprint inspection image that reflects an image previously formed on the cut recording sheet; obtain an output target inspection image generated based on an image formed on the cut recording sheet having the preprint image previously formed, the preprint inspection image being combined with the output target inspection image to generate a master image; determine whether a portion of the read image being read from the printed image of the cut recording sheet reaches an inspection unit of data subjected for inspection, the inspection unit of data being a portion of the data that corresponds to a predetermined portion of one sheet of the cut recording sheet having the printed image thereon; correct the size of at least one of the read image or the master image using a magnification ratio to match the sizes of the read image and the master image for the read portion of the read image that corresponds to the predetermined portion of one sheet of the cut recording sheet when the read portion reaches the inspection unit of data, the magnification ratio being previously obtained based on the preprint inspection image; and compare the read portion of the read image with a corresponding portion of the master image to inspect the read portion of the read image that corresponds to the predetermined portion of one sheet of the cut recording sheet.