Patent ID: 7050746

Claim:
An image forming apparatus, comprising: an image bearing member for bearing a toner image; an image forming unit for forming a toner image on said image bearing member; an intermediate transfer member to which the toner image is primarily transferred from said image bearing member, said intermediate transfer member rotating while being in contact with said image bearing member; an output unit for outputting information relating to a moving distance at a time when said intermediate transfer member rotates; a conveying unit which, in an attempt to secondarily transfer the toner image on the intermediate transfer member to a predetermined position on a recording material, starts conveyance of the recording material; a calculation unit for calculating information relating to a conveyance timing of the recording material on a basis of the information on the moving distance which is output by said output unit at a time when a rotation speed of the intermediate transfer member is switched from a first speed to a second speed lower than the first speed; a storage unit for storing the information relating to the conveyance timing calculated by said calculation unit; and a control unit for controlling a rotation of an intermediate transfer member and a conveyance of a recording material by said conveying unit, wherein, in a case in which a rotation speed of said intermediate transfer member is switched from the first speed to the second speed lower than the first speed to secondarily transfer the toner image on said intermediate transfer member to the predetermined position on the recording material, said control unit sets a conveyance timing of the recording material by the conveying unit on the basis of the information relating to the conveyance timing stored in said storage unit.