公开(公告)号：US20220060605A1

公开(公告)日：2022-02-24

申请号：US17444303

申请日：2021-08-03

Applicant: Ryotaro MIWA

Inventor： Ryotaro MIWA

IPC: H04N1/60 ,  H04N1/00

Abstract: An image forming apparatus includes an image former configured to form a first image on a first recording medium; a feeder configured to feed the first recording medium to the image former; a reader configured to read the first image formed on the first recording medium; a process executor configured to execute a predetermined process based on a first read image that is obtained by the reader by reading the first image; and a corrector configured to correct the reader based on a second read image that is obtained by the reader by reading a second image formed on a second recording medium fed by the feeder, and a predetermined read reference image.

公开(公告)号：US20210006664A1

公开(公告)日：2021-01-07

申请号：US16911741

申请日：2020-06-25

Applicant: Ryotaro MIWA

Inventor： Ryotaro MIWA

IPC: H04N1/00 ,  G06F3/12 ,  H04N1/56

Abstract: An image forming apparatus includes a printer configured to print on a print medium, and a reading unit configured to acquire color information of an image printed on the print medium. In printing on both sides being a first side and a second side of the print medium opposite the first side, upon a determination that a predetermined condition is met, the reading unit is configured to acquire the color information of the image printed on the first side of the print medium, after printing on the first side of the print medium is provided and before printing on the second side of the print medium is provided.

公开(公告)号：US20180278807A1

公开(公告)日：2018-09-27

申请号：US15920640

申请日：2018-03-14

Applicant: Ryotaro MIWA

Inventor： Ryotaro MIWA

IPC: H04N1/60 ,  G03G15/01 ,  H04N1/00

CPC classification number: H04N1/6044 ,  G01J3/50 ,  G01J3/52 ,  G01J3/524 ,  G01J2003/503 ,  G03G15/0105 ,  G03G15/5062 ,  G03G15/5087 ,  G03G2215/00067 ,  H04N1/00045 ,  H04N1/00087 ,  H04N1/6019 ,  H04N1/6027 ,  H04N1/6094 ,  H04N1/6097

Abstract: An image forming apparatus includes an image forming section to form a correction pattern, a reading unit to read the pattern and generate first data, a color converter to convert the first data into second data, a memory to store density conversion data for a recording medium, a determiner to determine whether the memory contains the conversion data for the recording medium the pattern is formed, an acquisition unit to acquire spectral measured by an external colorimeter the memory does not contain the conversion data, a first density converter to convert the spectral data into density data, a density conversion data generator to correlate the second data and the density data and generate the conversion data, a second density converter to convert the second data into the density data using the conversion data, and a correction curve generator to generate correction curve data based on the density data.