公开(公告)号：US20190230229A1

公开(公告)日：2019-07-25

申请号：US16253177

申请日：2019-01-21

申请人： Hiroki Terauchi

发明人： Hiroki Terauchi

IPC分类号： H04N1/00 ,  G03G15/22

CPC分类号： H04N1/00013 ,  G03G15/221 ,  H04N1/00063 ,  H04N1/00079 ,  H04N1/00084

摘要： An image reading device includes a reader, an opposing member, and circuitry. The reader is configured to read an image of an object to be conveyed. The opposing member has a plurality of opposing portions that include reference surfaces selectively switchable to be placed at a reading position of the reader. The reference surfaces include two or more identical reference surfaces. The circuitry is configured to determine whether an evaluation reading value of reading values read by the reader on each of the two or more identical reference surfaces is within a prescribed range and perform correction operation of the image reading device with the evaluation reading value within the prescribed range out of the reading values of the two or more identical reference surfaces.

公开(公告)号：US10012939B2

公开(公告)日：2018-07-03

申请号：US15289312

申请日：2016-10-10

申请人： Takayuki Nishimura ,  Hideyo Makino ,  Yasuyuki Sekino ,  Kohtaroh Oda ,  Tohru Matsumoto ,  Yuji Karikusa ,  Yukifumi Kobayashi ,  Kohsuke Yoshida ,  Daiki Sekita ,  Yuusuke Kumagawa ,  Hiroki Terauchi

发明人： Takayuki Nishimura ,  Hideyo Makino ,  Yasuyuki Sekino ,  Kohtaroh Oda ,  Tohru Matsumoto ,  Yuji Karikusa ,  Yukifumi Kobayashi ,  Kohsuke Yoshida ,  Daiki Sekita ,  Yuusuke Kumagawa ,  Hiroki Terauchi

IPC分类号： G03G15/00

CPC分类号： G03G15/5062 ,  G03G15/043 ,  G03G15/234 ,  G03G15/6561 ,  G03G2215/00586 ,  G03G2215/0129

摘要： An image forming apparatus includes an image forming device configured to form a first image on a first side of a recording medium and a second image on a second side of the recording medium, a position detector configured to detect respective positions of the first and second images, and a controller configured to perform, based on detection results obtained by the position detector, at least one of an image position correction by matching the first and second images and a magnification error correction by calculating and correcting a magnification error of one of the first and second images relative to the other. A program product used in the image forming apparatus includes a method of forming the first image and the second image, detecting the respective positions of the first and second images, and matching a position or a size of the first and second images.