Patent ID: 9568868
Date: 2017-02-14
CPC Classifications: G03G

Claim:
1. An image forming apparatus including a fixing device, the fixing device comprising: a rotatable fixing member having an endlessly moving surface; a heat source that heats the fixing member; a rotatable pressing member that is pressed and comes in pressure-contact with the fixing member so as to form a nip portion therebetween; a rotary drive unit that rotationally drives the fixing member or the pressing member; a control unit configured to control the rotary drive unit to perform heat-equalizing rotation of the fixing member and the pressing member for equalizing distribution of temperature of the surface of the fixing member in a width direction orthogonal to a recording medium conveying direction at the nip portion, at a time after a recording medium having a size less than or equal to a predetermined size in the width direction passes the nip portion and before a recording medium having a size greater than the predetermined size in the width direction passes the nip portion, wherein