| 摘要 |
An image forming apparatus includes a rotatable belt; a first image bearing member; first image forming device for forming an electrostatic latent image and a toner image on the first member; a second image bearing member disposed downstream of the first member; second image forming device for forming an latent image and a toner image on the second member; transferring device for transferring, onto a belt or onto a recording material carried on the belt, the toner image formed on the first member and a toner image formed on the second member; feeding direction calculating device for calculating a moving direction of a predetermined point on the belt; an executing portion for executing an operation in a correcting mode in which a positional relation between an adjustment toner image transferred onto the belt from the first member and adjustment toner image transferred onto the belt from the second member is detected, and a writing starting position of the latent image to be formed on at least one of the members on the basis of a result of the detection; and changing device for changing the writing starting position determined by the correcting mode on the basis of a difference between the moving direction calculated by the feeding direction calculating device during the operation in the correcting mode and the moving direction calculated by the feeding direction calculating device during image formation based on an inputted image formation signal. |
