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公开(公告)号：US20170090386A1
公开(公告)日：2017-03-30
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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2.发明申请公开(公告)号：US20170001822A1
公开(公告)日：2017-01-05
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 he 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.
摘要翻译： 电动机控制装置包括：电流检测单元，被配置为在电动机不被驱动时检测流过电动机的电流; 电压极性确定单元，被配置为确定与所检测的电流相对应的电压的极性; 以及操作状态管理单元，被配置为根据所述电压的极性来执行停止所述电动机的控制。
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3.发明申请公开(公告)号：US20170187321A1
公开(公告)日：2017-06-29
申请号：US15387821
申请日：2016-12-22
CPC分类号： G03G15/6529 , G03G15/5004 , G03G21/14 , G03G2215/00599 , G03G2215/0129
摘要： A motor control device includes a controller and a detector. The controller is configured to control, when receiving an operation request indicating rotation or stop of a motor, rotation of the motor based on the operation request. The detector is configured to detect whether the motor is rotating. The controller stops the motor when the detector detects rotation of the motor after an elapsed time from reception of the operation request indicating stop of the motor reaches a first threshold.
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公开(公告)号：US20190161299A1
公开(公告)日：2019-05-30
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：US20190276258A1
公开(公告)日：2019-09-12
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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公开(公告)号：US20190241385A1
公开(公告)日：2019-08-08
申请号：US16257179
申请日：2019-01-25
CPC分类号： B65H9/002 , B41J2/04505 , B65H9/10
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：US20190283998A1
公开(公告)日：2019-09-19
申请号：US16289787
申请日：2019-03-01
摘要： A sheet conveying device includes a detector configured to detect an attitude of a conveyance target medium, a corrector configured to perform a correcting operation based on a detection result of the detector, and circuitry configured to calculate an angular displacement correction amount and a lateral displacement correction amount of the conveyance target medium, cause the corrector to perform the correcting operation in a direction perpendicular to a sheet conveying direction, based on the lateral displacement correction amount, after the corrector grips the conveyance target medium, and cause the corrector to rotate by the angular displacement correction amount of the conveyance target medium before the corrector grips the conveyance target medium and to perform the correcting operation in a direction of rotation of the conveyance target medium, based on the angular displacement correction amount, after the corrector grips the conveyance target medium.
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公开(公告)号：US20180093841A1
公开(公告)日：2018-04-05
申请号：US15719848
申请日：2017-09-29
CPC分类号： B65H5/064 , B65H2301/44318 , B65H2404/144 , B65H2513/10 , B65H2801/03 , G03G15/1605 , G03G15/1615 , G03G15/167 , G03G15/50 , G03G15/6529 , G03G15/6564
摘要： A material conveyor, included in a transfer device of an image forming apparatus and configured to use position control of rotary bodies, includes a first rotary body and a second rotary body disposed opposing each other in an opposing region through which a material is conveyable, and a contact and separation device configured to cause at least a surface, of at least one of the first rotary body and the second rotary body to move, between a separated position and a contact position. The contact and separation device is configured to cause the at least the surface to move from the separated position to the contact position, at a first speed, and then to move at a second speed slower than the first speed. A method of position control includes moving at least the surface at different speeds or based on a distance relative to a threshold distance.
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9.发明申请IMAGE FORMING APPARATUS, RECORDING MEDIUM CONVEYING METHOD, AND IMAGE FORMING SYSTEM 有权图像形成装置，记录介质传输方法和图像形成系统公开(公告)号：US20130161900A1
公开(公告)日：2013-06-27
申请号：US13719482
申请日：2012-12-19
IPC分类号： B65H7/06
CPC分类号： B65H7/06 , G03G15/0189 , G03G15/6561
摘要： A recording medium conveyor includes a first conveyance part conveying a recording medium; a second conveyance part conveying the conveyed recording medium toward a transfer position; a detection part detecting the position of the recording medium conveyed by the second conveyance part; a position error detection part detecting a position error between the transfer position and a position at which there is to be the recording medium when an image reaches the transfer position; a position error storage part storing the detected position errors; a steady-state position error calculation part calculating a steady-state position error from the stored position errors; a first control part controlling the conveyance speed of the first conveyance part to reduce the steady-state position error; and a second control part controlling the conveyance speed of the second conveyance part to reduce the detected position error, with the steady-state position error being reduced.
摘要翻译： 记录介质传送器包括传送记录介质的第一传送部分; 将传送的记录介质传送到传送位置的第二传送部分; 检测由第二输送部输送的记录介质的位置的检测部; 位置误差检测部，当图像到达所述传送位置时，检测所述传送位置与所述记录介质的所在位置之间的位置误差; 存储检测到的位置误差的位置误差存储部; 稳态位置误差计算部，根据存储的位置误差计算稳态位置误差; 第一控制部分控制第一输送部分的输送速度以减小稳态位置误差; 以及第二控制部，其控制所述第二输送部的输送速度，以减小所述检测位置误差，同时所述稳态位置误差减小。
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公开(公告)号：US20220334519A1
公开(公告)日：2022-10-20
申请号：US17718374
申请日：2022-04-12
申请人： Motoharu TAKAHASHI
发明人： Motoharu TAKAHASHI
IPC分类号： G03G15/16
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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