Patent ID: 8023844
Filing Date: 2011-09-20
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an exposure head that includes a first imaging optical system, a second imaging optical system, a light shielding member having first and second light guide holes, first and second light emitting elements that are arranged in a first direction and emit light to pass the first light guide hole and to be focused by the first imaging optical system, and third and fourth light emitting elements that are arranged in the first direction and emit light to pass the second light guide hole and to be focused by the second imaging optical system, the first and second imaging optical systems being arranged in the first direction; a latent image carrier that moves in a second direction orthogonal to or substantially orthogonal to the first direction and carries a latent image that is formed by the exposure head; a developing unit that develops the latent image formed on the latent image carrier by the exposure head; a detector that detects an image that is developed by the developing unit and is formed using the first and second light emitting elements; and a transfer medium to which the image is to be transferred from the latent image carrier, wherein the detector detects the image transferred to the transfer medium, and the detector has a detection area on the transfer medium whose width is smaller than the image formed by the exposure head using the first and second light emitting elements.