| CPC G03G 15/2028 (2013.01) [G03G 15/2064 (2013.01); G03G 2215/2025 (2013.01)] | 5 Claims |
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1. A fixing device comprising:
a rotating member to be heated;
a pressure rotating member that is pressed against the rotating member to be heated to form a fixing nip portion;
a housing that stores the rotating member to be heated and the pressure rotating member;
a sheet entrance port which is provided in the housing and through which a sheet that is conveyed to the fixing nip portion is passed;
a shutter member that is supported by the housing and slides between a first position for opening the sheet entrance port and a second position for closing the sheet entrance port; and
a biasing member that biases the shutter member in a direction toward the second position,
wherein the fixing device heats and pressurizes the sheet passing through the fixing nip portion to melt and fix an unfixed toner image on the sheet,
the shutter member includes a hook portion in which an engagement claw is formed, and when the shutter member is arranged in the second position, the engagement claw is opposite a portion to be engaged in the housing and
when an external force directed toward an inside of the housing is applied to the shutter member arranged in the second position, the engagement claw engages the portion to be engaged to restrict a movement of the shutter member to the first position.
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