US 9,811,042 B2
Image forming device, image forming system, image detecting unit correcting method and image detecting device
Mitsunori Nakamura, Tama (JP); and Kazuomi Sakatani, Sagamihara (JP)
Assigned to KONICA MINOLTA, INC., Chiyoda-Ku, Tokyo (JP)
Filed by Konica Minolta, Inc., Chiyoda-ku, Tokyo (JP)
Filed on Jul. 30, 2015, as Appl. No. 14/814,241.
Claims priority of application No. 2014-173244 (JP), filed on Aug. 27, 2014.
Prior Publication US 2016/0062296 A1, Mar. 3, 2016
Int. Cl. G03G 15/00 (2006.01)
CPC G03G 15/6558 (2013.01) [G03G 15/5062 (2013.01); G03G 2215/00945 (2013.01); G03G 2215/00949 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An image forming device comprising:
an image forming unit configured to form an image on transfer paper;
a conveying unit configured to convey the transfer paper through a conveying path;
a first image detecting unit configured to detect the image on the transfer paper on which the image is formed by the image forming unit conveyed by the conveying unit;
a second image detecting unit formed of a detecting unit other than the first image detecting unit configured to detect the image on the transfer paper on which the image is formed by the image forming unit conveyed by the conveying unit; and
a controller configured to control image formation and conveyance of the transfer paper and receive detection results of the first and second image detecting units, wherein
the controller includes a detecting unit correcting mode in which the first image detecting unit is corrected by using an image detection result by the second image detecting unit, and in the detecting unit correcting mode, a transfer paper conveying speed including a speed of a trailing end of the transfer paper at a time of image reading by the second image detecting unit is changed to a transfer paper conveying speed different from a normal transfer paper conveying speed at a time of image formation, and the first image detecting unit is corrected based on read results of the same image output by the first and second image detecting units.