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公开(公告)号：US11582362B2
公开(公告)日：2023-02-14
申请号：US17681643
申请日：2022-02-25
发明人： Koichi Matsumura
摘要： An image reading apparatus includes a conveyance unit configured to convey an original; a reading unit comprising a reading sensor, the reading sensor having a light receiving element to receive light of a first color and a light receiving element to receive light of a second color that is different from the first color, wherein the reading unit is configured to read an image of the original conveyed by the conveyance unit by using the reading sensor to generate image data which represents a reading result of the reading unit; at least one processor configured to: determine a first abnormal position that is a position in a first direction of an abnormal pixel of the first color in an image represented by the image data.
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公开(公告)号：US11553097B2
公开(公告)日：2023-01-10
申请号：US17361894
申请日：2021-06-29
发明人： Shinnosuke Iwadate , Ryusuke Ito
摘要： An image forming apparatus includes an image former to form an image on a sheet based on an image forming condition for adjusting a position of the image on the sheet, a heater to fix the image on the sheet, and an image reader to read the image on the sheet, the image reader being arranged downstream from the heater in a conveyance direction in which the sheet is conveyed. A processor controls the image former to form an image including a mark on a sheet, controls the image reader to read the mark, generates the image forming condition based on a reading result of the mark by the image reader, and controls to determine, in a case where a second image including the mark is formed by the image former after the first image including the mark is formed by the image former, whether to form a chart including the mark on the sheet before the second image is formed based on an elapsed time after forming the first image.
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公开(公告)号：US20220294925A1
公开(公告)日：2022-09-15
申请号：US17681643
申请日：2022-02-25
发明人： Koichi Matsumura
摘要： An image reading apparatus includes a conveyance unit configured to convey an original; a reading unit comprising a reading sensor, the reading sensor having a light receiving element to receive light of a first color and a light receiving element to receive light of a second color that is different from the first color, wherein the reading unit is configured to read an image of the original conveyed by the conveyance unit by using the reading sensor to generate image data which represents a reading result of the reading unit; at least one processor configured to: determine a first abnormal position that is a position in a first direction of an abnormal pixel of the first color in an image represented by the image data.
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公开(公告)号：US20220109774A1
公开(公告)日：2022-04-07
申请号：US17552957
申请日：2021-12-16
发明人： Masami OHSHIMA
摘要： An image data transfer control device includes a first interface, a first and a second memory, a processor, and a second interface. The first interface acquires image data transferred in predetermined units. The first memory stores inclination correction data corresponding to the inclination of a print head, and correction position data indicating a correction position included in at least one divided image line among the predetermined number of divided image lines including each divided image line group. The second memory stores correction target image data at the correction position. The processor selects each divided image line group based on the inclination correction data, and specifies first and second correction target image data. The second interface outputs the second divided image line group including the first correction target image data instead of the second correction target image data.
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公开(公告)号：US20220091534A1
公开(公告)日：2022-03-24
申请号：US17417032
申请日：2020-01-07
发明人： Hyoungil Kim , Jaeil Yu , Sungdae Kim , Sangbum Woo , Ji Young Byun , Yong Ho You
IPC分类号： G03G15/043 , H04N1/047
摘要： An example operating method of an image forming apparatus includes detecting a position change of a beam with respect to a certain color in a main scanning direction, based on a change in a detection time at which the beam with respect to the certain color is detected by a beam detecting apparatus in the main scanning direction, detecting a position change of the beam with In respect to the certain color in a sub-scanning direction, based on a change in a detection time at which the beam with respect to the certain color is detected by the beam detecting apparatus in the sub-scanning direction, and correcting a value of at least one parameter used for alignment between an image of a reference color and an image of the certain color, based on the position changes of the beam in the main scanning direction and the sub-scanning direction.
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公开(公告)号：US20220086294A1
公开(公告)日：2022-03-17
申请号：US17470093
申请日：2021-09-09
发明人： Noriyuki KOYANAGI , Kosuke NOMOTO , Akira ANAMI , Naoki SAKAMOTO , Wataru BEPPU
摘要： When a transport section transports he a media, a controller of an image reading apparatus determines the lengths of the media in the transport direction, based on detection results of a medium detector. When determining that a length of a medium is equal to or more than a threshold and then determining that a length of a subsequent medium is equal to or more than the threshold, the controller decreases an ejection speed of the subsequent medium to a second speed by the transport section. When determining that a length of a medium is equal to or more than the threshold and then determining that a length of a subsequent medium is less than the threshold, the controller decreases the ejection speed from the first speed to a third speed that is lower than the second speed by the transport section.
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公开(公告)号：US11258377B2
公开(公告)日：2022-02-22
申请号：US16135064
申请日：2018-09-19
IPC分类号： H02N2/00 , G01P15/097 , H02N2/18 , F16F15/00 , G01M7/00 , G02B7/00 , G02B27/64 , H04N1/047 , G01P15/00
摘要： The present invention relates to a device which can measure, induce, and correct perturbations acting on an electromagnetic (EM) propagation source. Piezoelectric transducers are used to measure and control perturbations within a system to improve operation of an EM source. Perturbation measurements can be used to determine the environmental and system impacts on the EM source. Moreover, measurements can be used to correct or nullify perturbations applied to the EM source, through active or passive means.
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公开(公告)号：US20220030129A1
公开(公告)日：2022-01-27
申请号：US17297597
申请日：2019-09-09
发明人： Hidetoshi MASUDA
摘要： The medium transporting device is arranged so as to face the feeder for feeding the medium in the transporting direction and the surface of the medium transported in the transporting direction, and detects the motion of the medium in the two-dimensional coordinate system including the first axis and the second axis. The two-dimensional sensor is provided in a state in which the first axis and the second axis are inclined with respect to the transporting direction.
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公开(公告)号：US11233907B1
公开(公告)日：2022-01-25
申请号：US17178837
申请日：2021-02-18
发明人： Takeshi Ito , Ryuuta Imaizumi
摘要： According to one embodiment, an image forming apparatus includes a conveyance mechanism, a scanner, a buffer memory, a passage sensor, and a controller. The conveyance mechanism conveys a document along a conveyance path. The scanner reads an image on the document at a reading position along the conveyance path and generates image signals corresponding to the image that is read. The buffer memory stores image data corresponding to the image signals. The passage sensor is on the conveyance path upstream of the reading position. The controller determines whether to output the image data from the buffer memory after a sheet passage prediction time elapses based on the length of time required during a normal operation for the trailing edge of the document to reach the reading position.
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公开(公告)号：US11228691B2
公开(公告)日：2022-01-18
申请号：US17124362
申请日：2020-12-16
申请人： PFU Limited
发明人： Akiko Watanabe , Naofumi Kado
摘要： In an image processing system, an image reading apparatus determines whether an error occurs on a read image that is an image read by an image sensor, and generates and transmits data including the read image and error information that is information indicating presence or absence of occurrence of the error, and an image processing apparatus receives the data and performs, on the read image, image processing corresponding to the presence or absence of occurrence of the error, based on the error information.
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