Fixing device and image forming apparatus

摘要

A fixing device includes a heat source, a heat transfer member, a pressure-contacting member, a housing, and a shutter. The heat transfer member is heated by the heat source. The pressure-contacting member abuts on the heat transfer member. The housing stores the heat transfer member and the pressure-contacting member and is formed with a detection hole for detecting inner property from outside. The fixing device heats recording paper passing through between the heat transfer member and the pressure-contacting member to fix a toner image on the recording paper. The shutter opens and closes the detection hole in accordance with supply of the recording paper to a nip part by the heat transfer member and the pressure-contacting member.

主权项

1. A fixing device comprising:
a heat source; a heat transfer member being heated by the heat source; a pressure-contacting member being in pressure-contact with the heat transfer member; and a housing storing the heat source, the heat transfer member, and the pressure-contacting member, and is formed with a detection hole for detecting inner property from outside, wherein the fixing device heats recording paper passing through between the heat transfer member and the pressure-contacting member to fix a toner image on the recording paper, the fixing device further comprises a shutter opening and closing the detection hole in accordance with supply of the recording paper to a nip part by the heat transfer member and the pressure-contacting member, a temperature sensor disposed outside of the housing, and detecting a temperature of the heat transfer member stored in the housing, and a pressing part moving and pressing the pressure-contacting member against the heat transfer member when the recording paper is supplied between the heat transfer member and the pressure-contacting member, wherein the property is the temperature of the heat transfer member, the temperature sensor detects through the detection hole the temperature of the heat transfer member stored in the housing, and the pressing part operates interlocking with the opening and closing of the shutter.