Patent ID: 8854407

Claim:
An image forming apparatus, comprising: a head unit provided with multiple light emitting elements, which output light toward a rotationally driven image carrier and are disposed so as to illuminate different positions of the image carrier in a rotational axis of the image carrier, and multiple imaging lenses, which cause light from the light emitting elements to form an image onto a surface of the image carrier, a support substrate configured to support the multiple light emitting elements, a light amount control data storage unit configured to store light amount control data corresponding to multiple exposure areas respectively on the image carrier in the rotational direction of the image carrier, and a control unit configured to control a light amount of the light outputted from the multiple light emitting elements respectively based on light amount control data corresponding to the exposure areas opposing the multiple light emitting elements respectively by reading out from the light amount control data storage unit the light amount control data corresponding to displacement from an ideal position of an image forming position of light from the multiple light emitting elements occurring due to bending of a portion of the support substrate in a direction approaching the image carrier and/or displacement from the multiple exposure areas respectively to the ideal position occurring due to decentering of the image carrier.