Patent ID: 7529496

Claim:
An image forming apparatus comprising: an image forming unit configured to form an image on front and rear surfaces of a recording medium; and a control unit that controls the image forming unit to form an image that expresses information of a user who uses the image forming apparatus for a job that requires at least three recording media or expresses information identifying the job, only on 1) a rear surface of a recording medium, which corresponds to a first page of the job having an image on a front surface, without forming the image that expresses information of a user who uses the image forming apparatus on other pages of the job, or 2) a last page of the job having an image on a front surface without forming the image that expresses information of a user who uses the image forming apparatus on other pages of the job, or 3) recording media, which corresponds to a first page and a last page of the job with a front surface of each of the first page and the last page having an image, without forming the image that expresses information of a user who uses the image forming apparatus on other pages of the job, wherein, an odd number page of the image of the job is formed on one surface of a recording medium by the image forming unit; an even number page of the image of the job is formed on the other surface of the recording medium by the image forming unit; when a total page number of images of the job is an odd number, the control unit controls the image forming unit to form the image that expresses information only on the rear surface of the recording medium that includes the last page of the images of the job; and when a total page number of images of the job is an even number, the control unit controls the image forming unit to prevent the forming of the image that expresses information.