Patent ID: 6919979
Filing Date: 2005-07-19
Classification: B41J,G02B,G06K

Abstract:
1. An optical scanning apparatus comprising: a semiconductor laser for emitting a multi-beam for forming a latent image on an image bearing member; and a plurality of light receiving portions for receiving the multi-beam, the number of light receiving portions being equal to or larger than the number of beams of the multi-beam, wherein the plurality of light receiving portions are arranged with a predetermined space between them in a sub-scanning direction of the multi-beam without being overlapped with each other, and each of the plurality of light receiving portions has a shape so that edges of the plurality of light receiving portions on a start side in a main scanning direction are in parallel to each other, edges of the plurality of light receiving portions on an end side in the main scanning direction are in parallel to each other, and the edges on the start side and the edges on the end side in the main scanning direction are not in parallel to each other.