Patent ID: 8950745
Filing Date: 2015-02-10
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an image forming unit configured to form an image on a recording material having a type; a stacking unit configured to stack the recording material on which the image is formed by the image forming unit; an alignment unit configured to align an end of the recording material stacked by the stacking unit; a detection unit configured to detect the type of the recording material; and a control unit configured to control, in a case where first recording materials are stacked by the stacking unit, a timing for an alignment operation to cause the alignment unit to perform the alignment operation when a first number of the first recoding materials are stacked, and to control, in a case where second recording materials, being thinner than the first recording materials, are stacked by the stacking unit, the timing of the alignment operation to cause the alignment unit to perform the alignment operation when a second number, being larger than the first number, of the second recoding materials are stacked. wherein the control unit controls a number of stacked recording materials to be aligned by the alignment unit based on a condition that includes the type of the recording material detected by the detection unit, a number of sheets of the recording material stacked on the stacking unit, a temperature of an environment where the image forming apparatus is installed, and a humidity of the environment where the image forming apparatus is installed.