Patent ID: 8577277
Filing Date: 2013-11-05
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a feeding unit configured to feed a recording material; an image forming unit configured to form an image on an image bearing member; a primary transfer unit configured to transfer the image formed on the image bearing member onto an intermediate transfer member; a secondary transfer unit configured to transfer the image transferred onto the intermediate transfer member onto the recording material fed from the feeding unit; a size detecting unit configured to detect the size of the recording material, wherein the timing to complete detection of the size of the recording material with the size detecting unit is later than the timing to start forming the image with the image forming unit, and wherein the size detecting unit detects the size of the recording material while the plurality of images are formed on the intermediate transfer member at a first interval according to a predetermined recording material size, and after the size detecting unit detects the size of the recording material, if the size of the recording material detected by the size detecting unit is smaller than the predetermined recording material size, the interval is set as a second interval that is smaller than the first interval, at which the plurality of images are formed, based on the detected size of the recording material, and wherein the interval set as the second interval is an interval between forming a first image subsequent to completion of detection by the size detecting unit and forming a second image subsequent to forming the first image.