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公开(公告)号：US11235597B2
公开(公告)日：2022-02-01
申请号：US16257179
申请日：2019-01-25
摘要： An image forming apparatus, in which a method of correcting a positional deviation of a sheet is performed, includes a detecting device to detect a position of the sheet, a pair of sheet conveying bodies to convey the sheet and correct the positional deviation of the sheet, an image forming device to form an image on the sheet, and circuitry to calculate a first positional deviation amount of the sheet based on a first detection result of the detecting device, cause the pair of sheet conveying bodies to correct the positional deviation of the sheet based on the first positional deviation amount, calculate a second positional deviation amount of the sheet based on a second detection result of the detecting device, and cause the image forming device to correct the positional deviation of an image forming position on the sheet based on the second positional deviation amount.
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公开(公告)号：US08064781B2
公开(公告)日：2011-11-22
申请号：US12213416
申请日：2008-06-19
申请人： Motoharu Takahashi
发明人： Motoharu Takahashi
IPC分类号： G03G15/00
CPC分类号： G03G15/5004 , G03G21/1633 , G03G2221/1678
摘要： An image forming apparatus includes an opening-closing lid for opening and closing an opening portion formed in an apparatus main body; a detection unit for detecting an open state of the opening-closing lid; an execution unit for executing a specific operation; a main power source for supplying power to the execution unit; a retaining unit for retaining an open history indicating the open state of the opening-closing lid when the detection unit detects the open state of the opening-closing lid during a period of time when the main power source does not supply power to the execution unit; and a determining unit for determining whether the execution unit executes the specific operation according to the open history retained in the retaining unit when the main power source starts supplying power to the execution unit.
摘要翻译： 图像形成装置包括用于打开和关闭形成在装置主体中的开口部的打开 - 关闭盖; 用于检测所述打开 - 关闭盖的打开状态的检测单元; 用于执行特定操作的执行单元; 用于向执行单元供电的主电源; 当所述主电源不向所述执行单元供电时，所述保持单元用于保持指示所述打开 - 关闭盖的打开状态的打开状态，当所述检测单元检测到所述打开 - 关闭盖的打开状态时， ; 以及确定单元，用于当主电源开始向执行单元供电时，确定执行单元是否根据保留单元中保留的打开历史执行特定操作。
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公开(公告)号：US20240042775A1
公开(公告)日：2024-02-08
申请号：US18360052
申请日：2023-07-27
IPC分类号： B41J11/00
CPC分类号： B41J11/008 , B41J11/007 , B41J11/0095
摘要： A conveying device includes a conveyor, a detector, and circuitry. The conveyor conveys a recording medium in a conveyance direction. The detector detects a skew amount and a shift amount of a posture of the recording medium to be sent to the conveyor and detects, in parallel, end positions of the recording medium in a width direction of the recording medium intersecting with the conveyance direction, at at least three different points in the conveyance direction on one end of the recording medium in the width direction. The circuitry controls an operation of the conveyor and causes the detector to detect a corner folded portion of the recording medium based on the end positions of the recording medium in the width direction detected at the at least three different points.
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公开(公告)号：US11345558B2
公开(公告)日：2022-05-31
申请号：US16204013
申请日：2018-11-29
摘要： A sheet conveying device includable in an image forming apparatus that uses a method of conveying a conveyance target medium and a method of forming an image, includes a position detector, a position adjuster, and circuitry. The position detector is configured to detect a position of a conveyance target medium. Based on a detection of the position of the conveyance target medium by the position detector, the position adjuster moves in at least one of a width direction of the conveyance target medium and a rotation direction of the conveyance target medium within a plane of conveyance of the conveyance target medium and repeatedly adjusts the position of the conveyance target medium while conveying the conveyance target medium. The circuitry changes a conveying speed of the conveyance target medium, according to a change of the position of the conveyance target medium after adjusted by the position adjuster.
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公开(公告)号：US09983534B2
公开(公告)日：2018-05-29
申请号：US15275743
申请日：2016-09-26
CPC分类号： G03G15/6529 , G03G15/50 , G03G15/80 , G03G2215/0129 , H02P6/30
摘要： A motor control device for driving a motor, the motor control device includes: a receiver configured to receive, from an external source, a drive command containing a rotation direction command designating a rotation direction of the motor; a storage part configured to store the rotation direction of the motor indicated by the rotation direction command when the motor is driven using the rotation direction command; and a controller configured to, when a new piece of the drive command is received from the external source, control rotation reversing of the motor based on a rotation direction of the motor indicated by the rotation direction command contained in the received piece of the drive command and the rotation direction of the motor stored in the storage part.
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6.发明授权公开(公告)号：US11427423B2
公开(公告)日：2022-08-30
申请号：US16205493
申请日：2018-11-30
摘要： A sheet conveying device, which is included in an image forming apparatus, includes a plurality of position detectors, a leading end detector, and a position adjuster. The plurality of position detectors is configured to detect a position of a sheet. The leading end detector is configured to detect a leading end of the sheet. The position adjuster is configured to, based on a detection result obtained by the plurality of position detectors, rotate in a rotation direction of the sheet within a plane of conveyance of the sheet to change the position of the sheet the position adjuster grips the sheet under conveyance to cause the leading end detector to rotate with the position adjuster in the rotation direction of the sheet within the plane of conveyance of the sheet.
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公开(公告)号：US09944482B2
公开(公告)日：2018-04-17
申请号：US15198154
申请日：2016-06-30
CPC分类号： B65H7/20 , B65H5/062 , B65H2403/92 , B65H2513/512 , B65H2515/702 , B65H2515/704 , B65H2801/06 , G03G15/5004 , H02P3/025 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A motor control device includes: an electric-current detection unit configured to detect an electric current that flows through a motor at a time when the motor is not to be driven; a voltage-polarity determining unit configured to determine polarity of a voltage corresponding to the detected electric current; and an operating-state management unit configured to perform control of stopping the motor depending on the polarity of the voltage.
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公开(公告)号：US20090003869A1
公开(公告)日：2009-01-01
申请号：US12213416
申请日：2008-06-19
申请人： Motoharu Takahashi
发明人： Motoharu Takahashi
IPC分类号： G03G15/00
CPC分类号： G03G15/5004 , G03G21/1633 , G03G2221/1678
摘要： An image forming apparatus includes an opening-closing lid for opening and closing an opening portion formed in an apparatus main body; a detection unit for detecting an open state of the opening-closing lid; an execution unit for executing a specific operation; a main power source for supplying power to the execution unit; a retaining unit for retaining an open history indicating the open state of the opening-closing lid when the detection unit detects the open state of the opening-closing lid during a period of time when the main power source does not supply power to the execution unit; and a determining unit for determining whether the execution unit executes the specific operation according to the open history retained in the retaining unit when the main power source starts supplying power to the execution unit.
摘要翻译： 图像形成装置包括用于打开和关闭形成在装置主体中的开口部的打开 - 关闭盖; 用于检测所述打开 - 关闭盖的打开状态的检测单元; 用于执行特定操作的执行单元; 用于向执行单元供电的主电源; 当所述主电源不向所述执行单元供电时，所述保持单元用于保持指示所述打开 - 关闭盖的打开状态的打开状态，当所述检测单元检测到所述打开 - 关闭盖的打开状态时， ; 以及确定单元，用于当主电源开始向执行单元供电时，确定执行单元是否根据保留单元中保留的打开历史执行特定操作。
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公开(公告)号：US11609513B2
公开(公告)日：2023-03-21
申请号：US17718374
申请日：2022-04-12
申请人： Motoharu Takahashi
发明人： Motoharu Takahashi
摘要： A belt driving device includes an adjustment roller to stretch and rotate an endless belt; an inclination adjuster including a cam to adjust inclination of the roller to control deviation of the belt; a belt position detector to detect a belt position in a direction orthogonal to a movement direction of the belt; a stepping motor to rotate the cam; and a control output adjuster to adjust a control output to be supplied to the motor based on the belt position. When obtaining a rotation angle less than one step of the motor, the control output adjuster supplies the control output to the motor for a time corresponding to the rotation angle less than the one step out of a supply time of the control output for obtaining a rotation angle of the one step, and stops supplying the control output for a remaining time out of the supply time.
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公开(公告)号：US11148892B2
公开(公告)日：2021-10-19
申请号：US16269915
申请日：2019-02-07
摘要： A sheet conveying device includes a position detector configured to detect a position of a side end portion of a conveyance target medium, a position adjuster configured to move in at least one of a width direction of the conveyance target medium and a rotation direction of the conveyance target medium within a plane of sheet conveyance, while conveying the conveyance target medium, and adjust a position of the conveyance target medium, according to the position of the side end portion of the conveyance target medium detected by the position detector, a transfer rotary body disposed downstream from the position adjuster in a sheet conveying direction and having a receiver mounted on the rotary body to receive the conveyance target medium, and circuitry configured to change a rotation speed of the transfer rotary body according to the position of the conveyance target medium after adjusted by the position adjuster.
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