Hinge device and image forming apparatus

A hinge device pivotably connecting an operation panel to a body of an image forming apparatus, the hinge device comprising:

• a fixed member having a support plate portion and a fixed plate portion fixed to the body of the image forming apparatus;
• a first screw member disposed non-turnably on the support plate portion;
• a second screw member fastened to the first screw member;
• a pivotable member including:
• a panel support portion supporting the operation panel;
• and
• a movable plate portion held between the support plate portion and a bearing face of the second screw member,
• the pivotable member being pivotable relative to the fixed member around the first screw member or the second screw member serving as a pivot shaft;
• and
• a rotation restricting washer disposed between the movable plate portion and the bearing face of the second screw member,
• the support plate portion having a restricting piece formed therewith and extending therefrom in an axial direction of the pivot shaft,
• the rotation restricting washer having a receiving portion that is fitted over the restricting piece to restrict turning of the rotation restricting washer relative to the support plate portion, and
• the movable plate portion having a cutout through which the restricting piece passes to restrict a pivoting angle of the pivotable member relative to the support plate portion.