Patent ID: 6975821

Claim:
An image forming apparatus, comprising: an image supporter; at least one developing device, which applies toner onto a latent image formed on the image supporter to form a toner image thereon; a plurality of roller members; a belt member, stretched and circulated by the roller members, on which the toner image, which is to be secondarily transferred onto a recording medium, is primarily transferred; a fixing device, which heats the recording medium to fix the secondary transferred toner image thereon; a casing, which accommodates the image supporter, the developing device, the roller members, the belt member and the fixing device, such that the developing device and the fixing device are partitioned by the belt member, and such that one of the roller members is located at a corner portion of the casing; an exposing device, which selectively irradiates the image supporter to form the latent image thereon, the exposing device is located in the vicinity of the belt member; and a cooler, which cools the exposing device, wherein the developing device and the fixing device are partitioned by the belt member and the exposing device.