Patent ID: 9207636
Filing Date: 2015-12-08
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a fusing device having a heated member which is heated by a heat source and a pressing member which is put in pressed contact with the heated member, wherein a recording medium carrying an unfused toner image is nipped at a fusing nip formed between the heated member and the pressing member so as to fuse and fix the unfused toner image to the recording medium; an exhaust duct unit arranged over the fusing device, beside it, the exhaust duct unit expelling air around the fusing device out of the image forming apparatus, wherein an exhaust path through the exhaust duct unit is selectable between a fusing temperature sensor for sensing a fusing temperature of the heated member; an exterior humidity sensor for sensing a relative humidity outside the image forming apparatus; and a controller for controlling the exhaust duct unit based on results of detection by the exterior humidity sensor and the fusing temperature sensor, wherein