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1. 发明授权

US10191424B2 Image forming apparatus for controlling switching from monochrome image forming mode to color image forming mode 有权
公开(公告)号：US10191424B2
公开(公告)日：2019-01-29
申请号：US15620002
申请日：2017-06-12
申请人： CANON KABUSHIKI KAISHA
发明人： Hiromi Shimura , Hiroto Nishihara , Keita Takahashi , Shinnosuke Iwadate , Teruhito Kai
IPC分类号： G03G15/00 , G03G15/01
摘要： Provided is an image forming apparatus capable of reducing a downtime for switching between a monochrome image forming mode and a color image forming mode. In the image forming apparatus, images formed by a plurality of image forming stations are transferred in superimposition onto a transfer member. Further, the image forming apparatus controls image formation in each of a first mode of performing image formation using only an image forming station located at the most downstream position in a moving direction of the transfer member among the plurality of image forming stations, and a second mode of performing image formation using the plurality of image forming stations.

2. 发明申请

US20180097947A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180097947A1
公开(公告)日：2018-04-05
申请号：US15832197
申请日：2017-12-05
申请人： CANON KABUSHIKI KAISHA
发明人： Keita Takahashi , Shinnosuke Iwadate , Teruhito Kai , Hiroto Nishihara , Kenzo Kumagai , Hiromi Shimura
IPC分类号： H04N1/00 , B65H1/26 , B65H7/02
CPC分类号： H04N1/00482 , B65H1/266 , B65H7/02 , B65H2511/10 , B65H2511/51 , B65H2511/515 , B65H2511/52 , B65H2553/82 , H04N2201/0094 , B65H2220/01 , B65H2220/03 , B65H2220/04
摘要： Provided is an image forming apparatus, including: a manual feed tray on which a recording material is stacked; a first detecting unit; a second detecting unit arranged on an upstream side of the first detecting unit; a third detecting unit arranged on an upstream side of the second detecting unit; a fourth detecting unit detecting a length of the recording material; a display portion; and a control portion determining a size of the recording material based on detection results and causing the display portion to display a first screen displaying the determined size, wherein the control portion causes the display portion to display a second screen for designating the size, when, among the first to third detecting units, a detecting unit located on a downstream side does not detect presence of the recording material and another detecting unit located on an upstream side of the detecting unit, detects the presence.

3. 发明申请

US20170185875A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170185875A1
公开(公告)日：2017-06-29
申请号：US15377433
申请日：2016-12-13
申请人： CANON KABUSHIKI KAISHA
发明人： Hiromi Shimura , Hiroto Nishihara , Keita Takahashi , Hiroshi Matsumoto , Shinnosuke Iwadate , Ryou Sakaguchi , Teruhito Kai
IPC分类号： G06K15/02 , H04N1/00 , H04N1/407 , H04N1/60
CPC分类号： G06K15/1823 , G06K15/027 , G06K2215/0094 , H04N1/00477 , H04N1/00832 , H04N1/2346 , H04N1/2392 , H04N1/32122 , H04N1/4078 , H04N1/508 , H04N1/6008 , H04N1/6044 , H04N1/6091 , H04N2201/0094 , H04N2201/3215 , H04N2201/3219 , H04N2201/3222
摘要： An image forming apparatus, including: an image forming unit configured to form an image; an adjustment unit configured to select a type of adjustment processing, and execute the selected type of adjustment processing for the image forming unit; and a determination unit configured to determine an adjustment time based on the selected type of adjustment processing, wherein the determination unit determines, in a case where the adjustment unit causes the image forming unit to stop the image forming operation for executing the selected type of adjustment processing in a downtime, a first adjustment time, and wherein the determination unit determines, in a case where the image forming unit has finished the image forming operation, a second adjustment time longer than the first adjustment time.

4. 发明授权

US09499365B2 Sheet feeding device and image forming apparatus 有权
标题翻译：送纸装置和成像装置
公开(公告)号：US09499365B2
公开(公告)日：2016-11-22
申请号：US14593780
申请日：2015-01-09
申请人： CANON KABUSHIKI KAISHA
发明人： Takahiko Yamaoka , Shinnosuke Iwadate
IPC分类号： B65H1/14 , B65H7/02
CPC分类号： B65H7/02 , B65H1/14 , B65H2511/152 , B65H2511/20 , B65H2511/51 , B65H2511/515 , B65H2513/10 , B65H2513/108 , B65H2220/01 , B65H2220/02
摘要： A sheet feeding device includes a sheet storage unit, a driving unit, a first detection unit, a second detection unit, and a control unit. The sheet storage unit includes a tray on which a sheet bundle including a plurality of sheets is to be stacked. The driving unit lifts up the tray. The first detection unit detects, at a predetermined position, a top surface of the sheet bundle stacked on the tray and lifted up. The second detection unit detects whether a sheet is stacked on the tray. The control unit controls, while the first detection unit has not detected the top surface of the sheet bundle, the driving unit to lift up the tray at a first speed until the second detection unit detects the sheet, and to lift up the tray at a second speed lower than the first speed after the second detection unit detects the sheet.
摘要翻译：送纸装置包括纸张存储单元，驱动单元，第一检测单元，第二检测单元和控制单元。片材存储单元包括其上堆叠有多个片材的片材束的托盘。驱动单元提起托盘。第一检测单元在预定位置检测堆叠在托盘上的片材摞的顶表面并提起。第二检测单元检测纸张是否堆叠在纸盘上。控制单元在第一检测单元未检测到纸张摞的顶面的同时控制，驱动单元以第一速度提升托盘，直到第二检测单元检测到纸张，并且在一个在第二检测单元检测到纸张之后比第一速度低的第二速度。

5. 发明授权

US09324010B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09324010B2
公开(公告)日：2016-04-26
申请号：US14796483
申请日：2015-07-10
申请人： CANON KABUSHIKI KAISHA
发明人： Shinnosuke Iwadate , Keita Takahashi , Hiroto Nishihara , Hiromi Shimura , Teruhito Kai , Kenzo Kumagai
IPC分类号： G06F3/12 , G06K15/02 , G06K15/00
CPC分类号： G06K15/1803 , G03G15/0136 , G03G15/502 , G06K15/407
摘要： An image forming apparatus, including a mechanism configured to switch an intermediate transfer member between a first state in which the intermediate transfer member is in contact with a first photosensitive drum for a color toner image and a second photosensitive drum for a black toner image in a full-color mode and a second state in which the intermediate transfer member is separated from the first photosensitive drum and in contact with the second photosensitive drum in a monochrome mode; and a control portion configured to control the mechanism according to a set color mode in response to a user operation from which a start of the image formation is predicted, without an instruction of image formation and thereafter control the mechanism according to a changed color mode if the set color mode is changed by a setting of the color mode before receiving the instruction of the image formation.
摘要翻译：一种图像形成装置，包括被配置为在中间转印部件与用于彩色调色剂图像的第一感光鼓接触的第一状态和用于黑色调色剂图像的第二感光鼓之间切换中间转印部件的机构，全色模式和第二状态，其中中间转印部件以单色模式与第一感光鼓分离并与第二感光鼓接触; 以及控制部，其被配置为响应于从其预测图像形成的开始的用户操作，根据设定的颜色模式来控制机构，而没有图像形成的指令，并且此后根据改变的颜色模式来控制机构，如果在接收到图像形成指令之前通过颜色模式的设置改变设定的颜色模式。

6. 发明授权

US10031450B2 Image forming apparatus 有权
公开(公告)号：US10031450B2
公开(公告)日：2018-07-24
申请号：US15467114
申请日：2017-03-23
申请人： CANON KABUSHIKI KAISHA
发明人： Ryou Sakaguchi , Hiroshi Matsumoto , Shinnosuke Iwadate , Teruhito Kai , Hiroto Nishihara , Hiromi Shimura , Keita Takahashi
IPC分类号： G03G15/20
摘要： An image forming apparatus includes: an image forming unit configured to perform image formation in a first mode, in which image formation is performed by a plurality of image forming stations, or a second mode, in which image formation is performed by a predetermined image forming station among the plurality of image forming stations; and a controller configured to: control the image forming unit to perform a preparation operation in accordance with color mode information; set a restricted operation state in which the controller prohibits the image formation in the first mode and permits the image formation in the second mode when any one image forming station, except for the predetermined image forming station, is incapable of performing image formation; and prevent the image forming unit from performing the preparation operation when the first mode is set as the color mode information and the restricted operation state is set.

7. 发明授权

US09871934B2 Image forming apparatus 有权
公开(公告)号：US09871934B2
公开(公告)日：2018-01-16
申请号：US14857013
申请日：2015-09-17
申请人： CANON KABUSHIKI KAISHA
发明人： Keita Takahashi , Shinnosuke Iwadate , Teruhito Kai , Hiroto Nishihara , Kenzo Kumagai , Hiromi Shimura
IPC分类号： B65H1/00 , H04N1/00 , B65H1/26 , B65H7/02
CPC分类号： H04N1/00482 , B65H1/266 , B65H7/02 , B65H2511/10 , B65H2511/51 , B65H2511/515 , B65H2511/52 , B65H2553/82 , H04N2201/0094 , B65H2220/01 , B65H2220/03 , B65H2220/04
摘要： Provided is an image forming apparatus, including: a manual feed tray on which a recording material is stacked; a first detecting unit; a second detecting unit arranged on an upstream side of the first detecting unit; a third detecting unit arranged on an upstream side of the second detecting unit; a fourth detecting unit detecting a length of the recording material; a display portion; and a control portion determining a size of the recording material based on detection results and causing the display portion to display a first screen displaying the determined size, wherein the control portion causes the display portion to display a second screen for designating the size, when, among the first to third detecting units, a detecting unit located on a downstream side does not detect presence of the recording material and another detecting unit located on an upstream side of the detecting unit, detects the presence.

8. 发明申请

US20170355186A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170355186A1
公开(公告)日：2017-12-14
申请号：US15613544
申请日：2017-06-05
申请人： CANON KABUSHIKI KAISHA
发明人： Keita Takahashi , Shinnosuke Iwadate , Teruhito Kai , Hiroto Nishihara , Hiromi Shimura
IPC分类号： B41J2/045 , H04N1/036 , B41J2/125 , G06K15/12 , G03G15/04
CPC分类号： B65H7/18 , B41J2/04501 , B41J2/04573 , B65H7/02 , B65H7/20 , B65H2511/10 , B65H2511/20 , B65H2511/416 , B65H2513/514 , G03G15/50 , G03G15/5008 , G03G15/5029 , G03G15/6508 , G03G15/6511 , G03G15/6558 , G03G15/6564 , G03G15/6591 , B65H2220/01 , B65H2220/11 , B65H2220/03 , B65H2220/02
摘要： Disclosed is an image forming apparatus which includes: a feeding portion configured to feed a sheet; an image forming portion configured to form an image on the sheet; a conveying portion configured to stop the sheet fed by the feeding portion at a predetermined position and to convey the sheet to the image forming portion in accordance with a timing of forming the image by the image forming portion; a type discriminating portion configured to discriminate whether a type of the sheet to be fed belongs to a first sheet type group including plain paper or to a second sheet type group including coated paper; and a controlling portion configured to control feeding of the sheet, wherein the controlling portion is configured to change a sheet feeding start timing of the feeding portion in accordance with the type discriminated by the type discriminating portion.

9. 发明申请

US20170277087A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170277087A1
公开(公告)日：2017-09-28
申请号：US15467114
申请日：2017-03-23
申请人： CANON KABUSHIKI KAISHA
发明人： Ryou Sakaguchi , Hiroshi Matsumoto , Shinnosuke Iwadate , Teruhito Kai , Hiroto Nishihara , Hiromi Shimura , Keita Takahashi
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/2039 , G03G15/502 , G03G15/553 , G03G2215/0132 , G03G2215/0193
摘要： An image forming apparatus includes: an image forming unit configured to perform image formation in a first mode, in which image formation is performed by a plurality of image forming stations, or a second mode, in which image formation is performed by a predetermined image forming station among the plurality of image forming stations; and a controller configured to: control the image forming unit to perform a preparation operation in accordance with color mode information; set a restricted operation state in which the controller prohibits the image formation in the first mode and permits the image formation in the second mode when any one image forming station, except for the predetermined image forming station, is incapable of performing image formation; and prevent the image forming unit from performing the preparation operation when the first mode is set as the color mode information and the restricted operation state is set.

10. 发明授权

US09714148B2 Image forming apparatus 有权
公开(公告)号：US09714148B2
公开(公告)日：2017-07-25
申请号：US14751863
申请日：2015-06-26
申请人： CANON KABUSHIKI KAISHA
发明人： Keita Takahashi , Shinnosuke Iwadate , Teruhito Kai , Hiroto Nishihara , Kenzo Kumagai , Hiromi Shimura
IPC分类号： B65H7/20 , B65H1/04 , B65H7/02 , G03G15/02 , G03G15/00
CPC分类号： B65H7/20 , B65H1/04 , B65H7/02 , B65H2405/324 , B65H2407/21 , B65H2511/10 , B65H2511/11 , B65H2511/12 , B65H2511/414 , B65H2551/27 , B65H2557/12 , B65H2801/06 , G03G15/02 , G03G15/55 , G03G15/6514 , G03G15/6594 , G03G2215/00392 , G03G2215/00725 , G03G2215/00734 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： An image forming apparatus, including: a decision unit configured to decide a size of a recording material on a manual feed tray; a storage unit configured to store the size of the recording material decided by the decision unit when the image forming apparatus is shifted from a first mode in which power is supplied to the decision unit to a second mode in which the power is not supplied to the decision unit; a display unit configured to display information; and a control unit configured to cause the display unit to display a screen for confirming the size of the recording material on the manual feed tray in a case where the size of the recording material decided by the decision unit when the apparatus is shifted from the second mode to the first mode does not match the size of the recording material stored in the storage unit.

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