Patent ID: 9568867
Date: 2017-02-14
CPC Classifications: G03G

Claim:
1. An image forming apparatus for forming an image on a recording material, the image forming apparatus comprising: an image forming unit configured to form the image on the recording material according to image data; a fixing unit configured to fix the image on the recording material, the fixing unit having a heating member; a temperature detector configured to detect a temperature of the heating member; an acquisition unit configured to acquire density information of the image from the image data; and a controller configured to control power supplied to the heating member, wherein, in a case where the image is fixed on the recording material, the controller controls the power so that a detection temperature detected by the temperature detector becomes a fixing temperature according to the density information of the image to be fixed on the recording material, and wherein, in a case where image formation is consecutively performed onto a plurality of recording materials including a k-th recording material and an l-th recording material after the k-th recording material, and the acquisition unit acquires a first density which is the density information of the image formed on the k-th recording material, and a second density, higher than the first density, which is the density information of the image formed on the l-th recording material, while the image is being fixed on the k-th recording material, the controller controls the power so that the detection temperature becomes a temperature higher than a first temperature which is the fixing temperature according to the first density, and lower than a second temperature which is the fixing temperature according to the second density, and while the image is being fixed on the l-th recording material, the controller controls the power so that the detection temperature becomes the second temperature.