Patent ID: 9654665
Date: 2017-05-16
CPC Classifications: H04N

Claim:
1. An image forming apparatus comprising: a conveying unit that conveys a transfer medium; an image forming unit that prints an image on the transfer medium based on an image for printing; and a control unit that receives a detection result of an image detection unit that detects the image printed on the transfer medium, wherein: the image detection unit comprises an image sensor having a minimum detectable dot size, an image for which image detection by the image detection unit is not possible is an image which is made up of dots which are smaller than the minimum detectable size of the image sensor of the image detection unit, and the control unit has a determination function used when an image for which image detection by the image detection unit is possible and an image for which image detection by the image detection unit is not possible are added to a document image to form the image for printing, the determination function being adapted to exclude an area of the image for which image detection is possible, to compare (i) information of the detected image from which the area of the image for which image detection is possible is excluded and (ii) information of the image for printing from which the area of the image for which image detection is possible is excluded, and to determine a print quality of the printed image based on the comparison of the information of the detected image and the information of the image for printing.