Fixing device having reciprocating separating claw and image forming apparatus

A fixing device comprising:

• a fixing member being rotatably provided around an axis, and heating a toner image on a recording medium;
• a pressuring member being rotatably provided around an axis, forming a pressuring area between the fixing member and the pressuring member, and pressuring the recording medium passing through the pressuring area;
• a separating claw separating the recording medium passed through the pressuring area from a surface of the fixing member;
• and
• a moving mechanism reciprocatingly moving the separating claw in an axial direction in accordance with rotation of the fixing member or the pressuring member,
• wherein the moving mechanism includes:
• a biasing member biasing the separating claw from one side to the other side in the axial direction;
• two input gears having different numbers of teeth from each other, being arranged side by side on the same axis as each other, being meshed with one output gear driven and rotated by a driving source driving and rotating the fixing member or the pressuring member, and rotating around an axis while shifting by a difference of the numbers of teeth for each rotation in a rotation direction;
• a bearing depression being formed in one input gear of the input gears in a depressed condition, and having a contact face inclined with respect to the axial direction in a bottom face of the bearing depression;
• and
• a shaft protrusion being protruded from the other input gear to the one input gear of the input gears, and being supported by the bearing depression in a condition that a distal end face inclined with respect to the axial direction in the shaft protrusion is made contact with the contact face,
• the two input gears is rotated so as to repeat a condition being biased by the biasing member to make inclination directions of the contact face and the distal end face coincident with each other and a condition being separated from each other against biasing force of the biasing member by shifting the inclination directions of the contact face and the distal end face in the rotation direction, and thereby, reciprocatingly move the separating claw in the axial direction.