IMAGE-FORMING APPARATUS PROVIDED WITH FIXING DEVICE INCLUDING FIRST FIXING MEMBER, SECOND FIXING MEMBER, AND PRESSURE MODIFYING MECHANISM MODIFYING NIP PRESSURE OF NIP FORMED THEREBETWEEN

摘要

In an image-forming apparatus, a fixing device includes: a first fixing member; a heater; a motor; a second fixing member; and a pressure modifying mechanism. The second fixing member forms a nip together with the first fixing member. The pressure modifying mechanism modifies a nip pressure at a nip to one of a first nip pressure and a second nip pressure smaller than the first nip pressure. In a first case where a sheet jam occurs in the image-forming apparatus and no sheet exists in the nip, a controller performs: reducing the nip pressure from the first nip pressure to the second nip pressure; and halting rotation of the first fixing member after completed the reducing. In a second case where a sheet jam occurs in the image-forming apparatus and a sheet exists in the nip, the controller performs: the halting; and the reducing after completed the halting.