Patent ID: 7324769

Claim:
An image forming apparatus comprising: an image bearing member; an image forming unit for forming a toner image on the image bearing member; a transfer unit for transferring the toner image formed on the image bearing member to a recording material; a detection unit for detecting an adjustment toner image formed by the image forming unit; an adjustment unit for adjusting an image forming condition of the image forming unit based on the detected result of the detection unit; a determination unit for determining whether to execute the adjusting control by the adjustment unit; a control unit configured to execute a first mode in which the image forming unit forms the adjusting toner image inbetween before and after the ordinary images in a moving direction of the image bearing member, when ordinary images are continuously formed on a plurality of recording materials, and a second mode in which the image forming unit forms the adjusting toner image and the ordinary images in parallel in a direction orthogonal to a conveyance direction of the image bearing member so that at least a part of the adjusting toner is superimposed on the ordinary image in the moving direction of the image bearing member, when ordinary images are continuously formed on a plurality of recording materials and; a selection unit configured to select the first mode when a width in a direction orthogonal to a conveyance direction of the recording material to which the image formed on the image bearing member is transferred after it is determined to execute the adjusting control, is wider than the predetermined threshold, and select the second mode when a width in a direction orthogonal to a conveyance direction of the recording material is not wider than the predetermined threshold.