Fixing device and image forming apparatus incorporating same

摘要

A fixing device includes an endless belt-shaped fixing member to rotate in a predetermined direction, formed in a loop, an inner circumferential face of which is coated with a lubricant; a pressing member contacting an outer circumferential surface of the fixing member, to press against the fixing member; a driver to drive and rotate the pressing member; a contact member provided inside the loop formed by the fixing member and pressed against the pressing member via the fixing member to form a nip between the pressing member and the fixing member; and a heating member to heat the fixing member, provided inside the loop formed by the fixing member. When the fixing device starts up, the pressing member drives and rotates the fixing member less than 360 degrees to move a warmed range of the fixing member heated by the heating member to the nip.