Patent ID: 8995848
Filing Date: 2015-03-31
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a plurality of feed trays; an image forming unit to form an image on paper fed from a feed tray selected from among the plurality of feed trays; a density sensor to measure a density of the image formed on the paper by the image forming unit; a control unit to control execution of an output paper density adjustment for adjusting a density correction characteristic in a printing in accordance with a result obtained by forming a test image on the paper by using the image forming unit and by measuring the density of the test image formed on the paper by using the density sensor; a paper related information setting unit to set paper related information which is information relating to the paper, so as to relate the paper related information to the feed trays, the paper related information including predetermined paper setting information which is referred to in the output paper density adjustment; and a substitute feed tray setting unit to receive a setting of a substitute feed tray which is a feed tray for feeding the paper in the output paper density adjustment, wherein in executing the output paper density adjustment at a predetermined timing while a print job is executed, the control unit feeds the paper from the substitute feed tray by changing a feed tray for feeding the paper from a feed tray designated in the print job to the substitute feed tray, and uses the paper setting information which is related to the feed tray designated in the print job as the feed tray for feeding the paper.