Patent ID: 9377727
Filing Date: 2016-06-28
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: an image forming unit configured to form an image on a recording material based on image data; an acquisition unit configured to acquire density information from the image data; a fixing unit including a heating member and a pressure member forming a nip with the heating member, the fixing unit being configured to convey and heat the recording material on which the image is formed to fix the image on the recording material at the nip; a temperature detecting unit configured to detect the temperature of the heating member; and a control unit configured to set a fixing temperature for each of the recording materials and configured to control the amount of power supplied to the heating member so that the temperature detected by the temperature detecting unit becomes the fixing temperature, wherein the acquisition unit acquires the density information of the image to be formed on a first recording material to a N-th recording material in a job in which the image is continuously formed on a plurality of recording materials, N being an integer more than two, and wherein in a case where a density of the image on a k-th recording material is higher than a density of the image on a (k−1)-th recording material, k being an integer equal to two or more or equal to N or less, the control unit sets the fixing temperature of the (k−1)-th recording material to a temperature which is higher than a predetermined temperature predetermined by the density information of the image to be formed on the (k−1)-th recording material and which is lower than a predetermined temperature predetermined by the density information of the image to be formed on the k-th recording material, and wherein the control unit sets the fixing temperature of the k-th recording material to the predetermined temperature predetermined by the density information of the image to be formed on the k-th recording material.