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1.发明申请SHEET CONVEYANCE DEVICE, DOCUMENT CONVEYANCE DEVICE, AND IMAGE FORMING APPARATUS 有权纸张输送装置，文件输送装置和图像形成装置公开(公告)号：US20140210152A1
公开(公告)日：2014-07-31
申请号：US14160474
申请日：2014-01-21
发明人： Masayuki Kakuta , Yuki Tojo , Takuro Murata , Shinji Akamatsu
CPC分类号： B65H7/04 , B65H3/34 , B65H3/46 , B65H3/5261 , B65H5/025 , B65H5/062 , B65H7/02 , B65H7/125 , B65H7/18 , B65H7/20 , B65H9/006 , B65H2402/441 , B65H2405/3321 , B65H2511/20 , B65H2511/414 , B65H2511/521 , B65H2513/511 , B65H2513/53 , B65H2553/30 , B65H2553/822 , B65H2701/1311 , B65H2701/1313 , B65H2801/06 , B65H2801/39 , G03G15/602 , B65H2220/01 , B65H2220/02 , B65H2220/03
摘要： In a sheet conveyance device, if a sheet has not been detected at a second position when a predetermined time has elapsed since the sheet has been detected at a first position, a separating portion switches operation thereof from a separating operation to a non-separating operation of conveying the sheet from upstream to downstream in a sheet conveyance path, and a sheet feed portion continues a feeding operation. If the sheet has not been detected at the second position by the time a predetermined time has elapsed since the separating portion has started the non-separating operation, the separating portion and the sheet feed portion stop driving, and if the sheet has been detected at the second position by the time, the separating portion switches operation thereof from the non-separating operation to the separating operation, and the sheet feed portion continues the feeding operation.
摘要翻译： 在片材输送装置中，如果在从第一位置检测出片材经过了规定时间后在第二位置没有检测到片材，则分离部分将其从分离操作切换到非分离操作 在片材输送路径中将片材从上游输送到下游，并且片材进给部分继续进给。 如果在分离部分已经开始非分离操作之后经过预定时间的时间在第二位置没有检测到纸张，则分离部分和供纸部分停止驱动，并且如果片材已被检测到 第二位置，分离部分将其从非分离操作切换到分离操作，并且送纸部分继续进纸操作。
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2.发明授权Sheet conveyance device, document conveyance device, and image forming apparatus 有权纸张输送装置，文件输送装置和图像形成装置公开(公告)号：US09022378B2
公开(公告)日：2015-05-05
申请号：US14160474
申请日：2014-01-21
发明人： Masayuki Kakuta , Yuki Tojo , Takuro Murata , Shinji Akamatsu
CPC分类号： B65H7/04 , B65H3/34 , B65H3/46 , B65H3/5261 , B65H5/025 , B65H5/062 , B65H7/02 , B65H7/125 , B65H7/18 , B65H7/20 , B65H9/006 , B65H2402/441 , B65H2405/3321 , B65H2511/20 , B65H2511/414 , B65H2511/521 , B65H2513/511 , B65H2513/53 , B65H2553/30 , B65H2553/822 , B65H2701/1311 , B65H2701/1313 , B65H2801/06 , B65H2801/39 , G03G15/602 , B65H2220/01 , B65H2220/02 , B65H2220/03
摘要： In a sheet conveyance device, if a sheet has not been detected at a second position when a predetermined time has elapsed since the sheet has been detected at a first position, a separating portion switches operation thereof from a separating operation to a non-separating operation of conveying the sheet from upstream to downstream in a sheet conveyance path, and a sheet feed portion continues a feeding operation. If the sheet has not been detected at the second position by the time a predetermined time has elapsed since the separating portion has started the non-separating operation, the separating portion and the sheet feed portion stop driving, and if the sheet has been detected at the second position by the time, the separating portion switches operation thereof from the non-separating operation to the separating operation, and the sheet feed portion continues the feeding operation.
摘要翻译： 在片材输送装置中，如果在从第一位置检测出片材经过了规定时间后在第二位置没有检测到片材，则分离部分将其从分离操作切换到非分离操作 在片材输送路径中将片材从上游输送到下游，并且片材进给部分继续进给。 如果在分离部分已经开始非分离操作之后经过预定时间的时间在第二位置没有检测到纸张，则分离部分和供纸部分停止驱动，并且如果片材已被检测到 第二位置，分离部分将其从非分离操作切换到分离操作，并且送纸部分继续进纸操作。
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3.发明授权Sheet conveyance mechanism, document conveyance apparatus and image forming apparatus including the same 有权纸张输送机构，文件输送装置和包括该纸张输送机构的图像形成装置公开(公告)号：US09221637B2
公开(公告)日：2015-12-29
申请号：US14581463
申请日：2014-12-23
发明人： Takuro Murata , Masayuki Kakuta
CPC分类号： B65H9/004 , B65H3/0669 , B65H3/5261 , B65H5/025 , B65H5/06 , B65H7/08 , B65H7/20 , B65H9/006 , B65H9/20 , B65H2513/512 , B65H2513/514 , B65H2513/53 , B65H2553/82 , B65H2701/1311 , B65H2801/06 , B65H2801/39 , B65H2220/01 , B65H2220/03 , B65H2220/02 , B65H2220/11
摘要： A sheet conveyance mechanism in the present disclosure has a feeding portion, a pair of registration rollers, a first sensor, a second sensor, and a conveyance control portion. The feeding portion has a drive roller. The registration rollers are disposed in a downstream side of the feeding portion. The first and second sensors detect presence of a sheet. If after a sheet is detected by the first sensor, the sheet is not detected by the second sensor by a time when a first period elapses, the conveyance control portion starts a slowdown of a rotation speed of the drive roller. If the sheet is detected by the second sensor by a time when a second period elapses after the slowdown of the rotation speed of the drive roller starts, the conveyance control portion returns the rotation speed of the drive roller to a rotation speed before the slowdown.
摘要翻译： 本公开的片材输送机构具有进给部，一对定位辊，第一传感器，第二传感器和输送控制部。 进给部分具有驱动辊。 定位辊设置在供给部的下游侧。 第一和第二传感器检测纸张的存在。 如果在通过第一传感器检测到纸张之后，在经过第一时间段时，第二传感器不检测纸张，则输送控制部分开始驱动辊的转速减慢。 如果在驱动辊的转速减速开始之后第二时间段经过第二传感器检测到纸张，则输送控制部分将驱动辊的转速恢复到减速之前的转速。
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公开(公告)号：US12010279B2
公开(公告)日：2024-06-11
申请号：US18209824
申请日：2023-06-14
发明人： Risa Fukuuchi , Masayoshi Takahashi , Takuro Murata , Masahiro Nakao , Taro Kurahashi , Shunsuke Sasaki
IPC分类号： H04N1/00
CPC分类号： H04N1/00602 , H04N1/0071 , H04N1/00713 , H04N1/00777
摘要： An image reading device includes a document tray, a linear conveyance path, a curved conveyance path, a document conveyance device, a scanning device, a length detecting device, an operation device, and a controller. A plurality of conveyance rollers are disposed at a predetermined first interval in the linear conveyance path. In the curved conveyance path, a plurality of conveyance rollers are disposed at a predetermined second interval longer than the first interval. When accepting through the operation device an instruction for conveying an original document through the curved conveyance path, the controller allows conveyance of the original document through the curved conveyance path when a length of the original document detected by the length detecting device is not shorter than the second interval or disallows conveyance of the original document through the curved conveyance path when the detected length of the original document is shorter than the second interval.
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公开(公告)号：US11884504B2
公开(公告)日：2024-01-30
申请号：US17457863
申请日：2021-12-06
发明人： Takuro Murata
CPC分类号： B65H7/18 , B65H3/04 , B65H5/062 , B65H7/02 , B65H7/06 , G03G15/70 , B65H2511/11 , B65H2511/13 , B65H2511/414 , B65H2513/512 , B65H2601/11 , G03G2215/00548
摘要： A sheet conveying device includes a separation member, a second conveyance member, a third conveyance member, and a first drive control portion. The separation member separates a sheet in contact with a first conveyance member from another at a first position where the first conveyance member comes into contact with the sheet. The second and third conveyance members are respectively downstream of the first and second positions. The first drive control portion stops driving the first conveyance member (1) after the leading edge of the sheet reaches the second position and before the trailing edge of the sheet passes through the first position when the sheet length is not exceeding a specific distance based on a distance between the first and third positions and (2) after the leading edge reaches the third position and before the trailing edge passes through the first position when the length exceeds the specific distance.
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6.发明授权公开(公告)号：US11368594B2
公开(公告)日：2022-06-21
申请号：US17468202
申请日：2021-09-07
发明人： Shota Urase , Ryota Maeda , Taro Kurahashi , Koji Fujii , Masahiro Nakao , Takuro Murata
摘要： Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.
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7.发明授权公开(公告)号：US09670019B2
公开(公告)日：2017-06-06
申请号：US14738964
申请日：2015-06-15
发明人： Takuro Murata
CPC分类号： B65H7/06 , B65H1/04 , B65H1/14 , B65H3/0684 , B65H3/5261 , B65H7/04 , B65H7/18 , B65H2511/11 , B65H2511/414 , B65H2511/51 , B65H2513/53 , B65H2553/82 , B65H2701/1313 , B65H2801/06 , B65H2801/39 , G03G15/55 , G03G15/6511 , G03G15/6564 , G03G15/70 , G03G2215/00721 , G03G2215/00725 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A paper feed device includes a paper tray, a set-state sensor, a paper feed unit, and a control unit. The control unit checks an output from the set-state sensor each time before the start of the intermittent paper feed. In the case where no paper feed is detected even after the prescribed number of times of the intermittent paper feed, the control unit determines that a non-feed jam has occurred. In the case where it is detected that there is no paper on the paper tray before the number of repetition of the intermittent paper feed reaches the prescribed number of times, the control unit causes the paper feed unit to terminate the retry processing and determines that, with no paper on the paper tray, it is not the non-feed jam.
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8.发明授权Sheet conveyance device, document feeder, image forming apparatus, and multi feed detection method 有权纸张输送装置，送纸器，图像形成装置和多进纸检测方法公开(公告)号：US08882107B2
公开(公告)日：2014-11-11
申请号：US14052377
申请日：2013-10-11
发明人： Yuki Tojo , Masayuki Kakuta , Takuro Murata , Shinji Akamatsu
CPC分类号： B65H5/26 , B65H3/06 , B65H3/5261 , B65H5/06 , B65H5/062 , B65H7/02 , B65H7/125 , B65H9/006 , B65H2511/524 , B65H2513/512 , B65H2513/53 , B65H2553/30 , B65H2701/1311 , B65H2701/1313 , B65H2801/39 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A sheet conveyance device includes a paper feed section, a separation roller, a registration roller pair arranged downstream of the paper feed section, a conveyance roller pair arranged downstream of the registration roller pair, a multi feed sensor arranged between the paper feed section and the registration roller pair, and a document conveyance controller. When an original document arrives at the conveyance roller pair, the document conveyance controller suspends driving of the paper feed section and starts multi feed determination.
摘要翻译： 纸张输送装置包括供纸部分，分离辊，布置在供纸部分下游的定位辊对，布置在定位辊对下游的输送辊对，配置在供纸部和 定位辊对和文件传送控制器。 当原始文件到达传送辊对时，文件传送控制器暂停供纸部的驱动并开始多进纸确定。
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公开(公告)号：US11472651B2
公开(公告)日：2022-10-18
申请号：US17308263
申请日：2021-05-05
发明人： Takuro Murata
摘要： A document conveying device includes a document tray, a first rotary member, a first motor, a second rotary member, a second motor, a document feed sensor, and a controller. The controller counts a counted time from the time point that the first motor starts to rotate until the leading end of a document reaches the document feed sensor. When the time resulting from subtracting the counted time from a required sheet-to-sheet time interval is longer than the required speed change time, the controller performs deceleration and post-deceleration acceleration for the first motor. The required speed change time is the time required for speed change from the first rotation speed to the second rotation speed.
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10.发明申请公开(公告)号：US20220185607A1
公开(公告)日：2022-06-16
申请号：US17457863
申请日：2021-12-06
发明人： Takuro Murata
摘要： A sheet conveying device includes a separation member, a second conveyance member, a third conveyance member, and a first drive control portion. The separation member separates a sheet in contact with a first conveyance member from another at a first position where the first conveyance member comes into contact with the sheet. The second and third conveyance members are respectively downstream of the first and second positions. The first drive control portion stops driving the first conveyance member (1) after the leading edge of the sheet reaches the second position and before the trailing edge of the sheet passes through the first position when the sheet length is not exceeding a specific distance based on a distance between the first and third positions and (2) after the leading edge reaches the third position and before the trailing edge passes through the first position when the length exceeds the specific distance.
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