Optical scanner and image forming apparatus

An image forming apparatus comprising:

• a light source that emits light;
• and
• an optical scanner that scans the light from the light source,
• wherein the optical scanner includes
• a movable body that is able to oscillate around an axis;
• a shaft member that is connected to an end part of the movable body in a direction along the axis;
• and
• a drive unit that includes a permanent magnet, a coil that generates a magnetic field by application of voltage, and a voltage applying section that applies a voltage to the coil and oscillates the movable body around the axis,
• wherein the movable body includes
• a light reflecting plate provided with a light reflecting section having light reflectivity,
• a support frame that surrounds the light reflecting plate and has a thickness that is, ten times or less, larger than the thickness of the light reflecting plate, and
• a plurality of connecting sections that connects the light reflecting plate and the support frame at a plurality of locations, and
• wherein as the voltage applying section applies a voltage of a predetermined frequency to the coil, the movable body oscillates around the axis at the predetermined frequency.