Patent ID: 7680432

Claim:
An image forming apparatus, comprising: a primary process cartridge for a primary color, the primary process cartridge including a photosensitive member; at least two secondary process cartridges for at least two secondary colors, each secondary process cartridge including a photosensitive member such that each photosensitive member is associated with one of the secondary colors, and each secondary color being a color other than the primary color; a primary exposure device including a primary laser emitting member and a primary deflector, the primary laser emitting member emitting a laser beam based on image data of the primary color and the primary deflector deflecting the laser beam emitted from the primary laser emitting member to the photosensitive member of the primary process cartridge; a secondary exposure device including a secondary laser emitting member and a single secondary deflector, wherein the secondary laser emitting member emits a different laser beam for each secondary color, based on image data for each secondary color, and the single secondary deflector deflects the different laser beams such that each of the different laser beams is directed to the photosensitive member associated therewith; and the primary process cartridge and the at least two secondary process cartridges are arranged on a same side of a sheet conveying portion.