Image forming apparatus

An image forming apparatus comprising:

• an executing portion configured to operate in a borderless image forming mode in which a toner image is formed in at least one edge portion of a recording material of a predetermined size and to operate in an image forming mode in which the toner image is not formed in the edge portion of respective edges of the recording material of the predetermined size;
• an image forming portion configured to form the toner image on the recording material;
• a fixing device including a fixing member, a heating portion for heating the fixing member, a nip-forming portion for forming a fixing nip in which the recording material is nipped and conveyed between itself and the fixing member and for fixing the toner image on the recording material when the recording material on which the toner image is carried passes through the fixing nip, and a temperature detecting portion for detecting a temperature of the fixing member or the heating portion;
• and
• a controller configured to control the heating portion on the basis of a detection result of the temperature detecting portion,
• wherein in a case where the operation in the image forming mode is executed for the recording material of the predetermined size, the controller controls the heating portion so that the temperature becomes a first control temperature in a second period from passing of an upstream end, with respect to a conveying direction, of a first recording material through the fixing nip until a downstream end, with respect to the conveying direction, of a second recording material subsequent to the first recording material reaches the fixing nip, and
• wherein in a case where the operation in the borderless image forming mode in which an image is formed in the edge portion of the recording material of the predetermined size with respect to the conveying direction is executed, the controller controls the heating portion so that the temperature becomes a second control temperature higher than the first control temperature in the second period.