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公开(公告)号：US20170160686A1
公开(公告)日：2017-06-08
申请号：US15367632
申请日：2016-12-02
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masanobu Tanaka , Yasuharu Chiyoda , Oki Kitagawa , Asuna Fukamachi
IPC: G03G15/00
CPC classification number: G03G15/5016 , G03G15/5058 , G03G2215/0129 , H04N1/00037 , H04N1/00058 , H04N1/00082 , H04N1/00915 , H04N2201/0091
Abstract: An image forming apparatus includes an image forming portion for forming an image; a human presence sensor for detecting presence of a human body adjacent the apparatus, and a controller capable of executing an adjustment process operation for said image forming portion when a first predetermined number of prints are produced. When the human presence sensor detects a human body in the neighborhood of the apparatus, the execution of the adjustment process operation is deferred to reduce the waiting time necessitated by the adjustment operation, but a second predetermined number of prints are produced, the image forming operation of the image forming portion is interrupted, and the deferred adjustment process is executed.
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公开(公告)号：US20170142278A1
公开(公告)日：2017-05-18
申请号：US15354799
申请日：2016-11-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masanobu Tanaka , Yasuharu Chiyoda , Oki Kitagawa , Asuna Fukamachi
CPC classification number: H04N1/00891 , G03G15/50 , G03G15/5016 , G03G15/5058 , G03G2215/0129 , G06K9/00362 , H04N1/06 , H04N1/113 , H04N1/29 , H04N2201/0082 , H04N2201/0093
Abstract: An image forming apparatus includes an image forming unit, a human-body detection unit, an instruction receiver, and a controller. The controller determines whether an adjustment process is to be performed in accordance with a result of a determination, at an end of an image forming process, as to whether a human body is detected. The controller executes the adjustment process when the image forming process is terminated where the human-body detection unit does not detect a human body. The controller starts the image forming process before the adjustment process is executed where a human body is detected and the image forming instruction is received within a predetermined period. The controller executes the adjustment process when the predetermined period has elapsed while the image forming instruction is not received after the end of the image forming process where the human-body detection unit detects a human body.
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3.发明授权Image forming apparatus controlling the operation speed of each of an image forming portion and a fixing portion thereof when an image formation process is continuously performed for a plurality of sheets 有权当对于多个片材连续进行图像形成处理时，图像形成装置控制图像形成部分和其固定部分的每一个的操作速度公开(公告)号：US09459566B2
公开(公告)日：2016-10-04
申请号：US14986868
申请日：2016-01-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Oki Kitagawa , Akiyoshi Shinagawa , Masanobu Tanaka
CPC classification number: G03G15/2028 , G03G15/2046 , G03G15/205 , G03G21/14 , G03G2215/00599
Abstract: An image forming apparatus includes an image forming device for forming an image on a sheet; a fixing device for fixing an image formed on a sheet; a detector for detecting a temperature of the fixing device, and a controller for controlling an image formation start timing in accordance with an output of the detector. In an operation of continuously forming images on a plurality of predetermined sheets, when a number of image formations is not less than a predetermined number, the start of the image formation is delayed until a temperature of the fixing device rises up to a first temperature, and when the number of image formations is less than the predetermined number, the image formation is started when the temperature of the fixing device rises up to a second temperature which is lower than the first temperature.
Abstract translation: 图像形成装置包括用于在片材上形成图像的图像形成装置; 用于固定形成在片材上的图像的定影装置; 用于检测定影装置的温度的检测器，以及根据检测器的输出来控制图像形成开始定时的控制器。 在多个预定片材上连续地形成图像的操作中，当多个图像形成不小于预定数量时，图像形成的开始被延迟直到定影装置的温度上升到第一温度， 并且当图像数量小于预定数量时，当定影装置的温度升高到低于第一温度的第二温度时，开始图像形成。
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4.发明授权Image forming apparatus with moving mechanism configured to move at least one of heating member and pressing member between first, second, and third relative positions therebetween 有权具有移动机构的图像形成装置，其构造成使加热构件和按压构件中的至少一个在其间的第一，第二和第三相对位置之间移动公开(公告)号：US09405251B2
公开(公告)日：2016-08-02
申请号：US14717221
申请日：2015-05-20
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masanobu Tanaka
IPC: G03G15/20
CPC classification number: G03G15/2028 , G03G15/2032 , G03G15/2035
Abstract: An image forming apparatus includes: an image forming station; heating and pressing rollers forming a fixing nip therebetween; a mechanism for changing the relative positional relation between the heating and pressing rollers between a contacting position in which they contact each other, a first spacing position in which they are spaced, and the second spacing position in which they are spaced by a shorter distance; and a controller for controlling the changing mechanism such that in a period after the sheet passes through the fixing nip and before a next sheet reaches the fixing nip, the rollers are brought into the first spacing position when the period is longer than a first predetermined period, and that the rollers are brought into the second spacing position when the period is shorter than the first predetermined period and is longer than a second predetermined period.
Abstract translation: 图像形成装置包括：图像形成站; 加热和压辊在其间形成定影辊隙; 用于改变加热辊和加压辊之间的相对位置关系的机构，它们彼此接触的接触位置，它们间隔开的第一间隔位置和间隔较短距离的第二间隔位置; 以及控制器，用于控制所述更换机构，使得在所述片材通过所述定影辊隙之后的时段期间，以及在下一张片材到达所述定影辊隙之前的期间，当所述周期长于第一预定周期时，所述辊子进入所述第一间隔位置 并且当所述周期比所述第一预定周期短并且长于第二预定周期时，所述辊被带入所述第二间隔位置。
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公开(公告)号：US20160116867A1
公开(公告)日：2016-04-28
申请号：US14986868
申请日：2016-01-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Oki Kitagawa , Akiyoshi Shinagawa , Masanobu Tanaka
IPC: G03G15/20
CPC classification number: G03G15/2028 , G03G15/2046 , G03G15/205 , G03G21/14 , G03G2215/00599
Abstract: An image forming apparatus includes image forming means for forming an image on a sheet; fixing means for fixing an image formed on a sheet; detecting means for detecting a temperature of the fixing means; and controlling means for controlling an image formation start timing in accordance with an output of the detecting means, wherein in an operation of continuously forming images on a plurality of predetermined sheets, when a number of image formations is not less than a predetermined number, start of the image formation is delayed until a temperature of the fixing means rises up to a first temperature, and when the number of image formations is less than the predetermined number, the image formation is started when the temperature of the fixing means rises up to a second temperature which is lower than the first temperature.
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Patent Agency Ranking
公开(公告)号：US20160098004A1
公开(公告)日：2016-04-07
申请号：US14876304
申请日：2015-10-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Akiyoshi Shinagawa , Oki Kitagawa , Masanobu Tanaka
CPC classification number: G03G15/2028 , G03G15/2025 , G03G15/5016 , G03G2215/00531 , G03G2215/0129 , G03G2215/2032
Abstract: An image forming apparatus includes: an image forming device configured to form a toner image on a sheet; a fixing device configured to fix the toner image formed on the sheet by the image forming device at a nip; an executing portion configured to execute an operation in a cleaning mode for cleaning the fixing device by forming a predetermined toner image on a sheet using the image forming device and then by introducing the sheet into the nip; and a notifying device for notifying an operator that a maximum-width sheet usable in the image forming device is to be used in the operation in the cleaning mode.
Abstract translation: 图像形成装置包括：图像形成装置，被配置为在片材上形成调色剂图像; 定影装置，被配置为通过所述图像形成装置在辊隙处固定形成在所述片材上的调色剂图像; 执行部，被配置为通过使用所述图像形成装置在片材上形成预定的调色剂图像，然后将所述片材引入所述辊隙中来执行清洁模式中的操作以清洁所述定影装置; 以及通知装置，用于通知操作者在清洁模式下的操作中可以使用可用于图像形成装置中的最大宽度的纸张。
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7.发明授权公开(公告)号：US11669028B2
公开(公告)日：2023-06-06
申请号：US17406442
申请日：2021-08-19
Applicant: Canon Kabushiki Kaisha
Inventor： Masanobu Tanaka , Oki Kitagawa , Koichi Kakubari , Hiroto Ito
CPC classification number: G03G15/2028 , G03G21/203
Abstract: According to one aspect of the present invention, an image forming apparatus includes a fixing unit comprising a fixing member configured to fix a toner image to a recording material, and a pressure member configured to form a first nip portion, a conveyance portion configured to form a second nip portion, and a control unit configured to execute, a conveyance mode of conveying the recording material so that the recording material is not looped between the first nip portion and the second nip portion prior to a predetermined timing during passing of the recording material of the first nip portion, and conveying the recording material so that the recording material is looped toward the pressure member from the predetermined timing until a trailing edge of the recording material has passed through the first nip portion.
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公开(公告)号：US20190025736A1
公开(公告)日：2019-01-24
申请号：US16027032
申请日：2018-07-03
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keita Ishiguro , Masanobu Tanaka , Suguru Takeuchi , Asuna Fukamachi , Oki Kitagawa , Yasuharu Toratani
IPC: G03G15/20 , G03G21/14 , G03G15/00 , B41J29/377
CPC classification number: G03G15/20 , B41J29/377 , G03G15/5083 , G03G15/6552 , G03G15/6573 , G03G21/14
Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a sheet discharge unit to stack sheets, an acquisition unit, and a controller. The fixing unit fixes a toner image formed on a sheet by the image forming unit. The acquisition unit acquires information corresponding to a maximum toner application amount per unit area of the formed toner image. The controller controls the number of image formations on the sheets per unit time based on the acquired information. The controller executes a first job with a first number of image formations on the sheets per unit time during a period from an Lth sheet to an Mth sheet in the first job, and executes a second job with a second and smaller number of image formations on the sheets per unit time during the period from the Lth to the Mth sheet in the second job.
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公开(公告)号：US09952544B2
公开(公告)日：2018-04-24
申请号：US15367632
申请日：2016-12-02
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masanobu Tanaka , Yasuharu Chiyoda , Oki Kitagawa , Asuna Fukamachi
CPC classification number: G03G15/5016 , G03G15/5058 , G03G2215/0129 , H04N1/00037 , H04N1/00058 , H04N1/00082 , H04N1/00915 , H04N2201/0091
Abstract: An image forming apparatus includes an image forming portion for forming an image, a human presence sensor for detecting presence of a human body adjacent the apparatus, and a controller capable of executing an adjustment process operation for the image forming portion when a first predetermined number of prints are produced. When the human presence sensor detects a human body in the neighborhood of the apparatus, the execution of the adjustment process operation is deferred to reduce the waiting time necessitated by the adjustment operation, but if a second predetermined number of prints are produced, the image forming operation of the image forming portion is interrupted, and the deferred adjustment process is executed.
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公开(公告)号：US09392642B2
公开(公告)日：2016-07-12
申请号：US13728010
申请日：2012-12-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masanobu Tanaka , Oki Kitagawa , Shigeaki Takada , Akiyoshi Shinagawa , Hiroki Kawai
CPC classification number: H05B1/00 , G03G15/2025 , G03G15/2039 , G03G15/2064 , H05B1/0241 , H05B3/0095
Abstract: An image heating apparatus includes: an image heating roller in a nip; a nip forming member; a heating roller rubbing roller; a moving mechanism for moving the rubbing roller between a spaced position and a rubbing position; and a controller for executing operations in first and second modes. In the first mode, the heating roller is rotated with the rubbing roller in the spaced position and the heating roller in contact with the nip forming member with a target temperature of the heating roller higher than that of the nip forming member. In the second mode, the rubbing roller is contacted with the heating roller, rubbing the surface of the heating roller. The temperature difference in the first mode between the target temperature of the heating roller and that of the nip forming member is larger than the temperature difference when the toner image is heated by the nip.
Abstract translation: 图像加热装置包括：辊隙中的图像加热辊; 辊隙形成构件; 加热辊摩擦辊; 移动机构，用于在间隔位置和摩擦位置之间移动摩擦辊; 以及用于在第一和第二模式中执行操作的控制器。 在第一模式中，加热辊随着摩擦辊在间隔位置旋转，加热辊与辊隙形成部件接触，加热辊的目标温度高于辊隙形成部件的目标温度。 在第二模式中，摩擦辊与加热辊接触，摩擦加热辊的表面。 加热辊的目标温度和辊隙形成部件的目标温度之间的第一模式中的温度差大于通过辊隙加热调色剂图像时的温度差。
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