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1.发明授权公开(公告)号：US12108003B2
公开(公告)日：2024-10-01
申请号：US18450276
申请日：2023-08-15
发明人： Keisuke Ikemiya , Norikazu Honda
CPC分类号： H04N1/00774 , H04N1/00689 , H04N1/00692 , H04N1/00708 , H04N1/00734 , H04N1/03
摘要： An image reading apparatus includes a document table, a pressing plate that rotates about a rotation axis between an open position and a closed position, a line sensor that includes an image sensor arranged in a main scanning direction intersecting the rotation axis and outputs data by reading a document on the document table, and a control unit that determines presence or absence of the document based on first data acquired by the line sensor when the pressing plate is in an intermediate position before reaching the closed position and second data acquired by the line sensor when the pressing plate is in the closed position, wherein when the control unit determines the presence or absence of the document based on the first data and the second data, the control unit uses coefficient data that is smaller as a distance from the rotation axis is longer.
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公开(公告)号：US20240214499A1
公开(公告)日：2024-06-27
申请号：US18395809
申请日：2023-12-26
IPC分类号： H04N1/00
CPC分类号： H04N1/00774 , H04N1/00604 , H04N1/00734 , H04N2201/0081
摘要： When a size of a document is not specified, a control unit of an image reading device identifies, for image data generated as a reading result by a reading unit, a region of the document by detecting an edge of the document. When the size of the document is specified, the control unit searches the image data, at a position within a first range including a position away from an origin by a first distance, for a downstream end of the document from a downstream end of the image data toward upstream in a transport direction, and based on a position of the downstream end of the document identified by the searching, identifies as a region of the document a region corresponding to the size of the document specified.
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公开(公告)号：US11683429B2
公开(公告)日：2023-06-20
申请号：US17836851
申请日：2022-06-09
发明人： Yushi Oka
IPC分类号： H04N1/00
CPC分类号： H04N1/00774 , H04N1/00602 , H04N1/00689
摘要： An image scanning apparatus includes a sheet loading unit, a pickup roller, a first conveying roller, a detecting unit, a first stepping motor, a second conveying roller, a second stepping motor, a scanning unit, and a control unit that starts driving of the second stepping motor after performing phase matching of the second stepping motor. The control unit starts driving of the first stepping motor without performing phase matching of the first stepping motor. When an instruction to start scanning is input, the control unit starts the phase matching of the second stepping motor. When the detecting unit detects the document, the control unit starts driving of the first stepping motor after completion of the phase matching of the second stepping motor. When the detecting unit detects no document, the control unit starts driving of the first stepping motor before completion of the phase matching of the second stepping motor.
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公开(公告)号：US20180343361A1
公开(公告)日：2018-11-29
申请号：US15925934
申请日：2018-03-20
发明人： Hidekazu OKADA
CPC分类号： H04N1/3878 , H04N1/00588 , H04N1/0066 , H04N1/00718 , H04N1/00721 , H04N1/00774
摘要： An image scanning apparatus includes a distance detector configured to output a detection signal having a value corresponding to a distance in a main scanning direction from a particular position to a side end of a document sheet being conveyed, and a controller configured to store a first position of the document sheet in a conveyance direction when the distance detector outputs a detection signal having a first value corresponding to a first particular distance, store a second position of the document sheet in the conveyance direction when the distance detector outputs a detection signal having a second value corresponding to a second particular distance, and calculate a skew angle of the document sheet based on the first position and the second position.
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公开(公告)号：US20180170035A1
公开(公告)日：2018-06-21
申请号：US15883904
申请日：2018-01-30
CPC分类号： B41J2/04505 , B41J2/04586 , B41J3/543 , B41J11/46 , H04N1/00702 , H04N1/00774 , H04N1/047 , H04N1/12 , H04N1/191 , H04N2201/0082 , H04N2201/04713 , H04N2201/04717 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04743 , H04N2201/04781 , H04N2201/04786 , H04N2201/04787 , H04N2201/04789 , H04N2201/04791
摘要： A method and system of controlling at least one printbar in a printing system are described. The printing system has one or more of printbars distributed along a media transport. A first image including a reference pattern is generated on a print medium with a first printbar. A pattern is then detected on the print medium. The reference pattern and the detected pattern are used to determine a position of the first image relative to a second printbar. This position is used to configure nozzle data for a second image to be generated on the print medium by the second printbar.
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公开(公告)号：US10003713B2
公开(公告)日：2018-06-19
申请号：US15092081
申请日：2016-04-06
发明人： Jun Sakakibara , Katsuya Nagamochi
CPC分类号： H04N1/04 , H04N1/00726 , H04N1/00737 , H04N1/00769 , H04N1/00771 , H04N1/00774 , H04N1/00803 , H04N1/00816 , H04N1/00824 , H04N1/0289
摘要： An image processing apparatus comprises a scanner section and an area determination section. The scanner section reads the light reflected from an original document after the light penetrates a light diffusion sheet to output first image data, wherein the light diffusion sheet has a surface for diffusing the light reflected from the original document including a mirror reflection area; and the area determination section determines the mirror reflection area with respect to the first image data output from the scanner section.
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公开(公告)号：US09628649B2
公开(公告)日：2017-04-18
申请号：US14813594
申请日：2015-07-30
发明人： Hiroko Mori
CPC分类号： H04N1/00718 , H04N1/00748 , H04N1/00774 , H04N1/3878
摘要： A scanning apparatus is controlled to extract edges of an original document from an image scanned by a scanning device, execute an end obtaining process which causes the scanning apparatus to obtain a leading end of the original document and a trailing end of the original document based on the edges extracted in the extraction process, an inclination obtaining process to obtain a first inclination of the leading end and a second inclination of the trailing end, and a determination process to determine that a rotational skew has occurred when a difference between the first inclination and the second inclination is greater than a rotational skew threshold, the rotational skew being a change of inclination of the original document during conveyance of the original document.
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公开(公告)号：US20170104883A1
公开(公告)日：2017-04-13
申请号：US15387785
申请日：2016-12-22
发明人： Kazuya Okada
IPC分类号： H04N1/00
CPC分类号： H04N1/00549 , H04N1/00557 , H04N1/00559 , H04N1/00702 , H04N1/00734 , H04N1/00774 , H04N1/00795 , H04N2201/0082 , H04N2201/0094
摘要： An image forming apparatus comprises a sensor, a base, a clamping section and a limiting section. The sensor includes a hook having a claw section. The sensor is held on the base. The clamping section and the limiting section are arranged on the base. The claw section is clamped with the clamping section. The limiting section is elastically deformable when the sensor is mounted on the base. When the claw section is clamped with the clamping section, the limiting section faces the hook from the opposite side of the clamping section so as to limit the position of the hook.
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公开(公告)号：US20170034376A1
公开(公告)日：2017-02-02
申请号：US14812145
申请日：2015-07-29
发明人： Yusuke Hashizume
IPC分类号： H04N1/00
CPC分类号： H04N1/00748 , H04N1/00588 , H04N1/00713 , H04N1/00737 , H04N1/00774
摘要： In accordance with an embodiment, an image processing apparatus comprises a conveyance section, a first image reading section and a detection section. The conveyance section conveys a sheet in a first scanning direction. The first image reading section reads an image of the sheet conveyed by the conveyance section per line of a second scanning direction orthogonal to the first scanning direction. The detection section, based on an image signal read by the first image reading section, detects a front end portion and a rear end portion of the sheet in the first scanning direction.
摘要翻译： 根据实施例，图像处理设备包括传送部分，第一图像读取部分和检测部分。 输送部在第一扫描方向上输送纸张。 第一图像读取部读取与第一扫描方向正交的第二扫描方向上的每行输送部输送的片材的图像。 检测部基于由第一图像读取部读取的图像信号，在第一扫描方向上检测片材的前端部和后端部。
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公开(公告)号：US20160352965A1
公开(公告)日：2016-12-01
申请号：US15236712
申请日：2016-08-15
CPC分类号： H04N1/3878 , H04N1/00718 , H04N1/00721 , H04N1/00774 , H04N1/047 , H04N1/3876 , H04N1/409 , H04N2201/0082
摘要： Based on attachment position information of each of a plurality of sensor units, which reads an image in each area obtained by dividing the area of an original in a sub-scanning direction, image data output from the sensor unit undergoes attachment error correction of correcting the attachment error of the sensor unit. Image data output from the plurality of sensor units then undergo joint processing. Based on the placement information of the original, tilt correction of correcting the tilt of the original is performed for the image data having undergone the joint processing.
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