Patent ID: 6982736

Claim:
A color image forming apparatus, comprising: a photoreceptor having an image carrying surface; a first exposing device to expose the image carrying surface to form a first latent image; a first developing device to develop the first latent image to form a first toner image on the image carrying surface; a second exposing device to expose the image carrying surface to form a second latent image; a second developing device to develop the second latent image to form a second toner image on the image carrying surface, wherein the first exposing device comprises, a light source to emit a light beam, a deflector to deflect the light beam on the image carrying surface for making a scanning line, a first optical system, provided between the deflector and the image carrying surface, to focus the light beam on the image carrying surface, and a first adjustor to adjust the first optical system for correcting an inclination of the first optical system so that the first toner image and the second toner image are superposed on a recording sheet, and a first detector to detect the movement of the optical system by the adjustor and to generate a first signal in accordance with the movement of the optical system, wherein the first adjustor adjusts the optical system for correcting the inclination of the optical system responsive to the signal, and the light beam proceeds in a single plane between the deflector and the image carrying surface.