公开(公告)号：US20230421713A1

公开(公告)日：2023-12-28

申请号：US18339140

申请日：2023-06-21

申请人： CANON KABUSHIKI KAISHA

发明人： MASATO EIYAMA ,  KAZUYA KOIZUMI ,  TAKUYA TSUNEMI

IPC分类号： H04N1/00

CPC分类号： H04N1/00814 ,  H04N1/00602 ,  H04N1/0097 ,  H04N1/00819 ,  H04N1/00806

摘要： A reading apparatus includes a conveyance roller configured to convey a medium, a reading unit configured to read an image of the medium conveyed by the conveyance roller, a detection unit configured to detect a rotation phase of the conveyance roller, a storage unit configured to store index values, each index value being associated with the rotation phase of the conveyance roller and corresponding to a conveyance amount of the conveyance roller per unit rotation angle, and a timing control circuit configured to select the index value based on a detection result of the detection unit and to control a reading timing of the reading unit based on a result of comparing a cumulative value of selected index values with a threshold corresponding to a reading resolution.

公开(公告)号：US20240198696A1

公开(公告)日：2024-06-20

申请号：US18542449

申请日：2023-12-15

申请人： CANON KABUSHIKI KAISHA

发明人： SHUHEI TADA ,  RYU KOBAYASHI ,  TOMOYA TERAJI ,  TAKAHIRO DAIKOKU ,  MASATO EIYAMA

IPC分类号： B41J11/00 ,  B41J2/045 ,  B41J29/38

CPC分类号： B41J11/0022 ,  B41J2/0454 ,  B41J11/007 ,  B41J29/38 ,  B41J2203/01

摘要： A printing apparatus includes: a printing unit configured to print an image on a printing medium; a conveying unit configured to convey the printing medium on which the image is printed in a conveyance direction; a fixing unit configured to fix the image onto the printing medium by heating the printing medium on which the image is printed and that is conveyed by the conveying unit; a measuring unit configured to measure a reflected light intensity of the image on the printing medium; and a control unit configured to set a fixing condition to be used for the printing medium based on a change in the reflected light intensity measured by the measuring unit in a fixing process of the image.

公开(公告)号：US20240198697A1

公开(公告)日：2024-06-20

申请号：US18543939

申请日：2023-12-18

申请人： CANON KABUSHIKI KAISHA

发明人： RYU KOBAYASHI ,  YUKI IGARASHI ,  MASATO EIYAMA

IPC分类号： B41J11/00 ,  B41J2/045

CPC分类号： B41J11/00222 ,  B41J2/04528 ,  B41J2/04563 ,  B41J11/003

摘要： A printing apparatus includes a fixing unit configured to fix an image onto a printing medium by heating the printing medium on which the image is printed, a measuring unit configured to measure a length of the printing medium after heating of the printing medium in the fixing unit, a deriving unit configured to derive a characteristic of a deformation amount of the printing medium with respect to temperature based on the measured length, a receiving unit configured to receive a specification of a deformation amount threshold, and a determining unit configured to determine a fixation temperature in fixation of the image onto the printing medium by the fixing unit, based on the derived characteristic and the received deformation amount threshold.

公开(公告)号：US20240198693A1

公开(公告)日：2024-06-20

申请号：US18544157

申请日：2023-12-18

申请人： CANON KABUSHIKI KAISHA

发明人： YUKI IGARASHI ,  RYU KOBAYASHI ,  MASATO EIYAMA

IPC分类号： B41J11/00

CPC分类号： B41J11/00212 ,  B41J11/009

摘要： A printing apparatus includes a fixing unit configured to fix an image onto a printing medium by heating the printing medium on which the image is printed, a measuring unit configured to measure each of a length of the printing medium at a first temperature, a length of the printing medium after heating of the printing medium in the fixing unit at a second temperature being a glass transition point of a material of the printing medium, and a length of the printing medium after heating of the printing medium in the fixing unit at a third temperature, and a determining unit configured to determine a fixation temperature to be used for the printing medium, based on the measured lengths.