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1. 发明授权

US11099497B2 Image forming apparatus that controls image formation according to a property of a recording material 有权
公开(公告)号：US11099497B2
公开(公告)日：2021-08-24
申请号：US16548186
申请日：2019-08-22
申请人： CANON KABUSHIKI KAISHA
发明人： Tomohiro Hashimoto , Tsutomu Ishida , Masafumi Monde
IPC分类号： G03G15/043 , G03G15/00
摘要： An image forming apparatus includes a conveyance unit, an irradiation unit, an image capturing unit configured to capture a plurality of times the light radiated by the irradiation unit and reflected on the recording material as surface images, an image formation unit, and a control unit, wherein the conveyance unit accelerates or decelerates a conveyance speed of the recording material in at least a part of an image capturing period during which the image capturing unit captures the surface images the plurality of times, and wherein the control unit obtains a feature quantity from a plurality of surface images captured by the image capturing unit and controls the image forming condition based on the obtained feature quantity and a threshold value set according to the conveyance speed of the recording material in the image capturing period.

2. 发明授权

US10416590B2 Image forming apparatus 有权
公开(公告)号：US10416590B2
公开(公告)日：2019-09-17
申请号：US15360804
申请日：2016-11-23
申请人： CANON KABUSHIKI KAISHA
发明人： Tomohiro Hashimoto , Tsutomu Ishida , Masafumi Monde
IPC分类号： G03G15/043 , G03G15/00
摘要： An image forming apparatus includes a conveyance unit, an irradiation unit, an image capturing unit configured to capture a plurality of times the light radiated by the irradiation unit and reflected on the recording material as surface images, an image formation unit, and a control unit, wherein the conveyance unit accelerates or decelerates a conveyance speed of the recording material in at least a part of an image capturing period during which the image capturing unit captures the surface images the plurality of times, and wherein the control unit obtains a feature quantity from a plurality of surface images captured by the image capturing unit and controls the image forming condition based on the obtained feature quantity and a threshold value set according to the conveyance speed of the recording material in the image capturing period.

3. 发明申请

US20180238799A1 DETERMINATION APPARATUS FOR DETERMINING TYPE OF RECORDING MEDIUM AND IMAGE FORMING APPARATUS USING THE SAME 审中-公开
公开(公告)号：US20180238799A1
公开(公告)日：2018-08-23
申请号：US15958429
申请日：2018-04-20
申请人： CANON KABUSHIKI KAISHA
发明人： Teruhiko Namiki , Tsutomu Ishida , Masafumi Monde , Takuya Shono
IPC分类号： G01N21/55 , B41J11/00 , G01N29/44 , G03G15/00 , G01N29/11
CPC分类号： G01N21/55 , B41J11/009 , G01N29/11 , G01N29/4427 , G01N2201/1214 , G01N2291/0237 , G01N2291/048 , G03G15/5029 , G03G2215/00776
摘要： An apparatus for determining a type of a recording medium is provided. A detection unit detects a characteristic value indicating a physical characteristic of a recording medium. A measurement unit measures a moisture content correlated with a moisture content of the recording medium. A determination unit determines the type of the recording medium based on the moisture content and the characteristic value. The determination unit may correct the characteristic value using the moisture content or correct a rule for determining the type of the recording medium using the moisture content unit, and determines the type of the recording medium in accordance with the corrected characteristic value or the corrected rule.

4. 发明授权

US09977390B2 Image forming apparatus and recording material determination unit 有权
公开(公告)号：US09977390B2
公开(公告)日：2018-05-22
申请号：US15423448
申请日：2017-02-02
申请人： CANON KABUSHIKI KAISHA
发明人： Tsutomu Ishida , Masafumi Monde , Takuya Shono , Kohki Abiko
IPC分类号： G03G15/00 , B65H5/06 , G01N29/11 , B65H29/12
CPC分类号： G03G15/6529 , B65H5/062 , B65H29/12 , G01N29/0654 , G01N29/11 , G01N2291/048 , G01N2291/102 , G03G15/5029 , G03G2215/00637
摘要： An image forming apparatus includes an image forming unit for forming an image on a recording material, a first detection unit including a transmission unit for transmitting an ultrasonic wave and a reception unit for receiving the transmitted ultrasonic wave, first and second conveyance units for conveying the recording material, and a control unit. The first and second conveyance units form a loop on the recording material by conveying the recording material at different speeds. The control unit controls an image forming condition for forming an image on the recording material by the image forming unit, based on the ultrasonic wave received via the recording material in a period in which no loop is formed on the recording material by the first and second conveyance units.

5. 发明申请

US20170146940A1 IMAGE FORMING APPARATUS AND RECORDING MATERIAL DETERMINATION UNIT 审中-公开
公开(公告)号：US20170146940A1
公开(公告)日：2017-05-25
申请号：US15423448
申请日：2017-02-02
申请人： CANON KABUSHIKI KAISHA
发明人： Tsutomu Ishida , Masafumi Monde , Takuya Shono , Kohki Abiko
IPC分类号： G03G15/00 , B65H29/12 , G01N29/11 , B65H5/06
CPC分类号： G03G15/6529 , B65H5/062 , B65H29/12 , G01N29/0654 , G01N29/11 , G01N2291/048 , G01N2291/102 , G03G15/5029 , G03G2215/00637
摘要： An image forming apparatus includes an image forming unit for forming an image on a recording material, a first detection unit including a transmission unit for transmitting an ultrasonic wave and a reception unit for receiving the transmitted ultrasonic wave, first and second conveyance units for conveying the recording material, and a control unit. The first and second conveyance units form a loop on the recording material by conveying the recording material at different speeds. The control unit controls an image forming condition for forming an image on the recording material by the image forming unit, based on the ultrasonic wave received via the recording material in a period in which no loop is formed on the recording material by the first and second conveyance units.

6. 发明申请

US20170146939A1 IMAGE FORMING APPARATUS AND RECORDING MATERIAL DETERMINATION APPARATUS 审中-公开
公开(公告)号：US20170146939A1
公开(公告)日：2017-05-25
申请号：US15354737
申请日：2016-11-17
申请人： CANON KABUSHIKI KAISHA
发明人： Tsutomu Ishida , Tomohiro Hashimoto , Masafumi Monde , Norio Matsui
IPC分类号： G03G15/00
摘要： Various embodiments include an image forming unit configured to form an image on a recording material, an illumination unit configured to emit light, an image capturing unit configured to capture light emitted by the illumination unit and reflected by the recording material as a surface image including a plurality of pixels, and a control unit configured to calculate a first feature quantity from a difference of output values of a plurality of pixels arranged in a first direction, and calculate a second feature quantity from a difference of output values of a plurality of pixels arranged in a second direction intersecting the first direction in the surface image captured by the image capturing unit, and control an image forming condition of the image forming unit based on the calculated first feature quantity and the calculated second feature quantity.

7. 发明申请

US20160152052A1 DETERMINATION APPARATUS FOR DETERMINING TYPE OF RECORDING MEDIUM AND IMAGE FORMING APPARATUS USING THE SAME 有权
标题翻译：用于确定记录介质类型和图像形成装置的确定装置
公开(公告)号：US20160152052A1
公开(公告)日：2016-06-02
申请号：US14939452
申请日：2015-11-12
申请人： CANON KABUSHIKI KAISHA
发明人： Teruhiko Namiki , Tsutomu Ishida , Masafumi Monde , Takuya Shono
IPC分类号： B41J13/00 , G01N29/44 , G01N21/55 , G01N29/04
CPC分类号： G01N21/55 , B41J11/009 , G01N29/11 , G01N29/4427 , G01N2201/1214 , G01N2291/0237 , G01N2291/048 , G03G15/5029 , G03G2215/00776
摘要： An apparatus for determining a type of a recording medium is provided. A detection unit detects a characteristic value indicating a physical characteristic of a recording medium. A measurement unit measures a moisture content correlated with a moisture content of the recording medium. A determination unit determines the type of the recording medium based on the moisture content and the characteristic value. The determination unit may correct the characteristic value using the moisture content or correct a rule for determining the type of the recording medium using the moisture content unit, and determines the type of the recording medium in accordance with the corrected characteristic value or the corrected rule.
摘要翻译：提供一种用于确定记录介质的类型的装置。检测单元检测表示记录介质的物理特性的特征值。测量单元测量与记录介质的水分含量相关的水分含量。确定单元基于水分含量和特征值来确定记录介质的类型。确定单元可以使用水分含量来校正特征值，或者使用水分含量单元来校正用于确定记录介质的类型的规则，并且根据校正的特性值或校正的规则来确定记录介质的类型。

8. 发明授权

US09250591B2 Ultrasonic wave sensor and image forming apparatus 有权
标题翻译：超声波传感器和成像设备
公开(公告)号：US09250591B2
公开(公告)日：2016-02-02
申请号：US14563782
申请日：2014-12-08
申请人： CANON KABUSHIKI KAISHA
发明人： Yasutaka Yagi , Tsutomu Ishida , Tadashi Okanishi , Teruhiko Namiki , Motoyasu Muramatsu , Masaki Kobayashi
IPC分类号： G03B15/00 , G03G15/00
CPC分类号： G03G15/5029 , G03G2215/00611 , G03G2215/00637 , G03G2215/00776
摘要： A sensor is attached to an apparatus having a fixing unit which fixes an image on a recording medium by heating the recording medium. The sensor includes: a transmission unit transmitting an ultrasonic wave to the recording medium; a reception unit receiving the ultrasonic wave via the recording medium, and output a signal corresponding to the received ultrasonic wave; and a detecting unit detecting information relating to a state of the recording medium which has changed by passing through the fixing unit, based on a first signal which the reception unit has output upon having received the ultrasonic wave before the recording medium has passed through the fixing unit, and a second signal which the reception unit has output upon having received the ultrasonic wave after the recording medium has passed through the fixing unit.
摘要翻译：传感器附接到具有固定单元的装置，该定影单元通过加热记录介质将图像定影在记录介质上。传感器包括：发送单元，向记录介质发送超声波; 接收单元，经由记录介质接收超声波，并输出与所接收的超声波对应的信号; 以及检测单元，基于在所述记录介质已经通过所述定影之前已经接收到所述超声波而输出的所述接收单元输出的第一信号来检测与通过所述定影单元已经改变的所述记录介质的状态相关的信息单元，以及接收单元在记录介质通过定影单元之后已经接收到超声波而输出的第二信号。

9. 发明授权

US09201372B2 Recording-material identifying apparatus and image forming apparatus 有权
标题翻译：记录材料识别装置和图像形成装置
公开(公告)号：US09201372B2
公开(公告)日：2015-12-01
申请号：US14482483
申请日：2014-09-10
申请人： Canon Kabushiki Kaisha
发明人： Tsutomu Ishida , Shoichi Koyama , Tomoharu Nakamura , Shun-ichi Ebihara , Norio Matsui
IPC分类号： G03G15/00
CPC分类号： G03G15/5062 , G03G15/5029 , G03G15/6529 , G03G2215/00734 , G03G2215/00738 , G03G2215/00751
摘要： By providing a step in a pressing member for pressing a recording material P to a reading surface of an image-pickup unit, surface images in a tight contact area and a non-tight-contact area are picked up. By identifying the type of the recording material P based on the two surface images, the accuracy of identifying the recording material is improved without using a plurality of sensors.
摘要翻译：通过在将记录材料P按压到图像拾取单元的读取表面的按压构件中提供一个步骤，拾取紧密接触区域和非紧密接触区域中的表面图像。通过基于两个表面图像识别记录材料P的类型，在不使用多个传感器的情况下提高了记录材料的识别精度。

10. 发明授权

US09186906B2 Recording-medium imaging device and image forming apparatus 有权
标题翻译：记录介质成像装置和图像形成装置
公开(公告)号：US09186906B2
公开(公告)日：2015-11-17
申请号：US14305878
申请日：2014-06-16
申请人： CANON KABUSHIKI KAISHA
发明人： Tsutomu Ishida , Shunichi Ebihara , Norio Matsui , Shoichi Koyama
IPC分类号： G03G15/00 , B41J2/47 , H04N5/225 , B41J11/00
CPC分类号： B41J2/47 , B41J11/009 , G03G15/5029 , G03G2215/00616 , G03G2215/00751 , H04N5/2256
摘要： An effective image area can be properly corrected in accordance with the quantity of light from an irradiation unit by selecting, as the effective image area, pixels having light quantities more than or equal to a threshold value that allows accurate acquisition of a surface image of a recording medium, on the basis of a light quantity distribution of the light from the irradiation unit. This reduces the influence of mounting accuracy of the irradiation unit, and allows the recording medium to be identified accurately.
摘要翻译：通过选择具有大于或等于阈值的光，作为有效图像区域，可以根据来自照射单元的光量来适当地校正有效图像区域，该阈值允许精确获取表面图像的记录介质，基于来自照射单元的光的光量分布。这降低了照射单元的安装精度的影响，并且允许准确地识别记录介质。

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