Abstract: A divisional exposure apparatus comprises a plurality of exposure devices for dividing the exposure region of a photosensitive element and exposing each divided exposure region by one of the corresponding exposure devices. The exposure signals of the exposure devices are so controlled as to be on the same phase. The scanning directions of the exposure devices are arranged to compensate for the traveling speed of the photosensitive element such that the scanning lines become parallel to the axis of the photosensitive element. The exposure of the region where two adjacent scanning lines connect with each other is controlled to be substantially equal to other exposure regions.