Patent ID: 7920156
Filing Date: 2011-04-05
Classification: G03G,H04N

Abstract:
1. An image forming apparatus, comprising: a latent image carrier, on a surface of which is provided with an effective image region which has a predetermined width in a main scanning direction, and the surface of which is driven in a sub scanning direction which is approximately orthogonal to the main scanning direction; a latent image forming unit, which scans a first scan region corresponding to the effective image region with a light beam from a light source in the main scanning direction by means of a deflection mirror surface which oscillates, and which irradiates the effective image region with a latent-image forming light beam, thereby forming a linear latent image in the effective image region; and a direction controller which selectively switches a scanning direction of the latent-image forming light beam between a first direction in the main scanning direction and a second direction that is in the main scanning direction and opposite to the first direction based on information related to latent-image forming position on said latent image carrier, wherein said latent image forming unit irradiates the effective image region with a light beam which scans the first scan region in the scanning direction set by said direction controller as the latent-image forming light beam so as to form the linear latent image in the effective image region, thereby adjusting the forming position of the linear latent image on said latent image carrier.