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公开(公告)号：US12192419B2
公开(公告)日：2025-01-07
申请号：US18516534
申请日：2023-11-21
Applicant: CANON KABUSHIKI KAISHA
Inventor： Katsuya Nakama
IPC: H04N1/00
Abstract: An image forming apparatus includes: an image forming unit configured to form an image on each of media; a plurality of sheet feeding cassettes each configured to store the media; a media sensor which is provided on a conveyance path through which the media are fed from any of the plurality of sheet feeding cassettes to the image forming unit, and is configured to detect a type of the conveyed media; a memory configured to store, for each sheet feeding cassette, the type of media stored in each of the plurality of sheet feeding cassettes; and a controller configured to output, to a display, a selection screen for selecting a sheet feeding cassette in which media to be used in calibration of adjusting a density of the image to be formed by the image forming unit are stored.
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公开(公告)号：US11119429B2
公开(公告)日：2021-09-14
申请号：US16829062
申请日：2020-03-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Katsuya Nakama
Abstract: An image forming apparatus includes an image forming unit, a storage portion to which a heating unit configured to heat the sheet stored in the storage portion is detachably attached, a conveyance unit, a detection unit configured to detect attachment of the heating unit to the storage portion, and a control unit configured to control the conveyance unit such that a standby time by which conveyance of the sheet fed from the storage portion is stopped is shorter when the detection unit detects the heating unit than when the detection unit does not detect the heating unit.
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公开(公告)号：US10281852B2
公开(公告)日：2019-05-07
申请号：US16021684
申请日：2018-06-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takashi Yokoya , Satoru Yamamoto , Toshiyuki Miyake , Katsuya Nakama , Koji Yumoto , Riki Fukuhara , Akihiro Kawakita
IPC: G03G15/20
Abstract: An image forming apparatus includes a mounting portion that detachably mounts either one of a fixing portion and another fixing portion. Each fixing portion includes a first rotatable member and a second rotatable member that, together, form a nip for fixing a toner image on a sheet, and a memory. A rubbing rotatable member executes a rubbing process of rubbing a surface of the first rotatable member, and a moving mechanism moves the rubbing rotatable member between a rubbing position, in which the rubbing rotatable member is in contact with the first rotatable member, and a stand-by position, in which the rubbing rotatable member is separated from the first rotatable member. In addition, a controller stores information corresponding to an execution frequency of the rubbing process designated by an operator through an operating panel, in the memory of the fixing portion that has been mounted in the mounting portion.
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公开(公告)号：US20180307164A1
公开(公告)日：2018-10-25
申请号：US16021684
申请日：2018-06-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takashi Yokoya , Satoru Yamamoto , Toshiyuki Miyake , Katsuya Nakama , Koji Yumoto , Riki Fukuhara , Akihiro Kawakita
IPC: G03G15/20
CPC classification number: G03G15/2025
Abstract: An image forming apparatus includes a rubbing rotatable member capable of executing a rubbing treatment of rubbing a surface of a first rotatable member, a counter to count a number corresponding to a number of recording materials on that toner images are formed, an obtaining portion to obtain information that corresponds to an instruction of an operator and that corresponds to whether to permit the execution of the rubbing treatment, that is based on the number counted by the counter, a writing portion to write the information obtained by the obtaining portion in the storing portion of the fixing portion mounted in the mounting portion, and a controller to control whether to execute the rubbing treatment, that is based on the number counted by the counter, in accordance with the information stored in the storing portion of the fixing portion mounted in the mounting portion.
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公开(公告)号：US09921516B2
公开(公告)日：2018-03-20
申请号：US15373184
申请日：2016-12-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshiyuki Miyake , Satoru Yamamoto , Katsuya Nakama , Koji Yumoto , Riki Fukuhara , Akihiro Kawakita
IPC: G03G15/043 , G03G15/00 , G03G15/23
CPC classification number: G03G15/043 , G03G15/234 , G03G15/5062 , G03G15/55 , G03G2215/00569 , G03G2215/0164
Abstract: Provided is an image forming apparatus capable of reducing power consumption by optimizing preliminary operation of a sensor. In the image forming apparatus, when tone characteristics adjustment is instructed (Step S1003: Y), tone characteristics adjustment (Step S1006) is executed after calibration (Step S1004), while when mixed-color correction is instructed (Step S1007: Y), mixed-color correction processing (Step S1009) is executed after calibration (Step S1008). Further, in the case where mixed-color correction is executed after tone characteristics adjustment, the preliminary light emission time in calibration is set shorter than when mixed-color correction is executed without performing gray adjustment first.
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Patent Agency Ranking
公开(公告)号：US09714150B2
公开(公告)日：2017-07-25
申请号：US14693040
申请日：2015-04-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshiyuki Miyake , Akinobu Nishikata , Satoru Yamamoto , Takashi Yokoya , Katsuya Nakama , Koji Yumoto , Riki Fukuhara
CPC classification number: B65H29/58 , B42C19/02 , B42C19/08 , B65H43/06 , B65H2404/632 , B65H2511/30 , B65H2513/42 , B65H2801/27 , G03G15/6582 , G03G2215/00818 , G03G2215/0129 , B65H2220/02 , B65H2220/01
Abstract: A sheet conveying apparatus that restricts conveyance of sheets to a post-processing apparatus which has become incapable of continuing a post-processing operation. The sheet conveying apparatus is communicably connected to the post-processing apparatus that performs post-processing on a sheet bundle formed by sheets. The sheet conveying apparatus includes a conveying unit for conveying sheets and an escape tray for receiving conveyed sheets which are not conveyed to the post-processing apparatus. A value corresponding to the number of sheet bundles formed by conveyed sheets is counted. A CPU circuit section determines based on communication with the post-processing apparatus whether or not the post-processing operation can be continued thereby. When it is determined that the post-processing operation cannot be continued, the CPU circuit section switches the sheet conveying destination from the post-processing apparatus to the escape tray, based on the counted value.
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公开(公告)号：US20230096743A1
公开(公告)日：2023-03-30
申请号：US17936741
申请日：2022-09-29
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shintaro Kawai , Katsuya Nakama
Abstract: An image forming apparatus includes an intermediate transfer member, a cleaning member, and an image forming unit having a developer carrier. During an image forming job, when a ratio of an amount of toner consumed to a distance that the developer carrier is rotationally driven is greater than a threshold value, the image forming unit forms a first toner supply image for supplying toner to the cleaning member in a predetermined period that is from a time at which a first toner image is transferred to the intermediate transfer member to a time at which a second toner image is transferred to the intermediate transfer member. When the ratio is less than the threshold value, the image forming unit forms a second toner supply image for supplying toner to the cleaning member in the predetermined period and having a density that is higher than a first toner supply image density.
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公开(公告)号：US20180307168A1
公开(公告)日：2018-10-25
申请号：US16020259
申请日：2018-06-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuhiro Kikuchi , Yasuharu Chiyoda , Masahiro Tsujibayashi , Satoru Yamamoto , Katsuya Nakama
CPC classification number: G03G15/5016 , G03G15/2032 , G03G15/5079 , G03G21/1685 , G03G2215/00514
Abstract: An image forming apparatus includes an input portion into which a job is to be input, an image forming portion configured to form a toner image on a recording material to execute the job input into the input portion, a fixing portion configured to fix, on the recording material, the toner image formed by the image forming portion, the fixing portion being capable of being replaced with another fixing portion depending on a content of the job, a selecting portion configured to prompt an operator to select one of a plurality of modes before a plurality of jobs are successively reserved, and a controller configured to control the execution order of reserved jobs. The controller can change the execution order of the plurality of jobs so as to decrease the number of times of replacement of the fixing portion, or the controller can maintain the execution order of the plurality of jobs in a reserved order.
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公开(公告)号：US20180246459A1
公开(公告)日：2018-08-30
申请号：US15902153
申请日：2018-02-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Satoru Yamamoto , Toshiyuki Miyake , Katsuya Nakama , Koji Yumoto , Riki Fukuhara , Akihiro Kawakita
CPC classification number: G03G15/70 , B65H29/50 , B65H29/683 , B65H31/10 , B65H31/24 , B65H43/00 , B65H43/06 , B65H2511/13 , B65H2511/152 , B65H2511/20 , B65H2511/22 , B65H2511/30 , B65H2513/10 , B65H2515/112 , B65H2515/12 , B65H2515/40 , B65H2601/273 , B65H2801/06 , G03G15/2003 , G03G15/5029 , G03G15/5062 , G03G15/6573 , G03G2215/00067 , G03G2215/00556 , G03G2215/00616 , B65H2220/01 , B65H2220/11 , B65H2220/02
Abstract: An image forming apparatus comprises a first conveyance unit, an image forming unit, a second conveyance unit, a stacking unit, and a control unit. The control unit controls, in a case where a sheet stacking condition of the stacking unit does not satisfy a predetermined stacking condition, the second conveyance unit to convey the sheet at a second conveyance speed that is faster than the first conveyance speed. The control unit controls, in a case where the sheet stacking condition of the stacking unit satisfies the predetermined stacking condition, the second conveyance unit to convey the sheet at a third conveyance speed that is slower than the second conveyance speed.
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公开(公告)号：US10025248B2
公开(公告)日：2018-07-17
申请号：US15136256
申请日：2016-04-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuhiro Kikuchi , Yasuharu Chiyoda , Masahiro Tsujibayashi , Satoru Yamamoto , Katsuya Nakama
Abstract: An image forming apparatus includes an input portion into which a job is to be input, an image forming portion configured to form a toner image on a recording material to execute the job input into the input portion, a fixing portion configured to fix, on the recording material, the toner image formed by the image forming portion, the fixing portion being capable of being replaced with another fixing portion depending on a content of the job, a selecting portion configured to prompt an operator to select one of a plurality of modes before a plurality of jobs are successively reserved, and a controller configured to control the execution order of reserved jobs. The controller can change the execution order of the plurality of jobs so as to decrease the number of times of replacement of the fixing portion, or the controller can maintain the execution order of the plurality of jobs in a reserved order.
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