Abstract: An image forming apparatus includes: a first image carrier; a first image forming unit that forms an image; an intermediate transfer belt; a primary transfer unit that primarily transfers the image onto the intermediate transfer belt; a secondary transfer unit that secondarily transfers the image transferred further onto a recording medium; a second image carrier that transfers the image onto the recording medium; a second image forming unit that forms an image on the second image carrier; a direct transfer unit that directly transfers the image onto the recording medium; a recording medium carriage belt, and a driving roller that drives the recording medium carriage belt; a speed fluctuation detecting unit; and a drive control unit that controls driving of the driving roller so as to reduce the cyclic speed fluctuation of the carriage belt based on a detection result of the speed fluctuation detecting unit.

Abstract: A first profile corresponding to a first print is generated based on first spectral data of a first print and third spectral data of a light source, which serves as an observational light source for the first print. A second profile corresponding to a second protective-film-covered print is generated based on spectral data of a second print, second spectral data of a second laminating film, and third spectral data of a light source, which serves as an observational light source for the second protective-film-covered print. Using the first profile as an input profile and the second profile as an output profile, colors of image data representing an image of the first print are converted into colors of image data representing an image of the second print.