Patent ID: 8520049

Claim:
A fixing mechanism of an optical scanning device, the optical scanning device emitting a light beam and performing a scanning, the optical scanning device comprising a housing that is fixed to a pair of frames at an external part, the pair of frames facing each other and the fixing mechanism comprising: a penetration hole provided in each of the pair of frames; and a plurality of protruding pins each provided at a respective end of the housing of the optical scanning device and each pin extending in a direction transverse to the pair of frames, wherein at least a first one of the plurality of protruding pins is insertable into the penetration hole formed in a first one of the frames; and a biasing mechanism biasing the housing of the optical scanning device in a direction transverse to the pair of frames, wherein: the biasing mechanism comprises: a plate member fixed to the first one of the frames; a header pin passing through the plate member and fixed to the housing; and a biasing member provided between a head of the header pin and the plate member that biases the header pin away from the plate member; wherein the plate member comprises a fitting hole through which the at least first one of the plurality of protruding pins is fittable; and a notch formed in the first one of the frames at the location of the fitting hole in the plate member.