Patent ID: 7929006

Claim:
An optical-scanning image forming apparatus comprising: a laser array light source having plural laser light sources for emitting plural laser beams; a photosensitive body having a surface on which a single electrostatic latent image is formed by a surface potential changed by scanning the plural laser beams emitted from the laser array light source; and a controller for controlling the emission of the plural laser beams of the laser array light source, wherein the plural laser light sources are formed so that the electrostatic latent image is formed in a direction nonparallel to a main scanning direction in a region where the electrostatic latent image is formed on the surface of the photosentitive body, plural laser spots of the plural laser beams are overlapped with each other in a sub-scanning direction so that solid printing can be performed even when only one of plural laser light sources is turned on, and the controller sequentially turns off at least one of the plural laser beams when forming the single continuous electrostatic latent image line on the photosensitive body by scanning the plural laser beams in the main scanning direction of the photosensitive body.