US 9,811,035 B2
Image forming apparatus and recording material discrimination unit
Miki Naruse, Susono (JP); Masafumi Monde, Yokohama (JP); Tsutomu Ishida, Suntou-gun (JP); and Kosuke Ogino, Susono (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 23, 2015, as Appl. No. 14/949,255.
Claims priority of application No. 2014-242584 (JP), filed on Nov. 28, 2014; and application No. 2015-177906 (JP), filed on Sep. 9, 2015.
Prior Publication US 2016/0154357 A1, Jun. 2, 2016
Int. Cl. G06F 3/12 (2006.01); G03G 15/00 (2006.01); H04N 1/12 (2006.01); H04N 1/00 (2006.01); G03G 15/16 (2006.01); G03G 15/20 (2006.01)
CPC G03G 15/5029 (2013.01) [H04N 1/00092 (2013.01); H04N 1/00986 (2013.01); H04N 1/12 (2013.01); G03G 15/1675 (2013.01); G03G 15/2046 (2013.01); G03G 2215/00949 (2013.01); H04N 2201/0082 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An image forming apparatus for forming an image on a recording material, the image forming apparatus comprising:
a sensor configured to detect grammage of the recording material or surface property of the recording material, and output an output value according to a detection result; and
a processor configured to control an image forming condition based on the output value output by the sensor,
wherein, after the sensor detects a first recording material and outputs a first output value, the sensor detects a second recording material which is different from the first recording material and outputs a second output value,
wherein the processor obtains a differential value between the first output value and the second output value, and
in a case where the differential value is smaller than a predetermined threshold value, the processor controls the image forming condition with respect to the second recording material based on the first output value and the second output value, and
in a case where the differential value is larger than the predetermined threshold value, the processor controls the image forming condition with respect to the second recording material based on the second output value without using the first output value.