Patent ID: 8600274

Claim:
A color image forming apparatus comprising image forming units for each color, each of the image forming units including a photosensitive member driven to rotate, a charge section for charging the photosensitive member, a light emission section for emitting light to form an electrostatic latent image on the photosensitive member, a developing section for applying toner on the electrostatic latent image and forming a toner image on the photosensitive member, and a transfer section for transferring a toner image adhered on the photosensitive member, the charging section, the developing section and the transfer section being arranged for the photosensitive member, said color image forming apparatus comprising: a forming section that controls the light emission section corresponding to each color and forms an electrostatic latent image for misregistration correction on each of the photosensitive members for each color; a power supply section for the charge section, the developing section or the transfer section for each color; a detection section for detecting an output for each color, from the power supply section, when the electrostatic latent image for misregistration correction formed on the photosensitive member for each color passes through a position facing one of the charge section, the developing section and the transfer section; and a control section that performs misregistration correction control so as to return a misregistration condition to a reference condition based on a detection result from the detection section.