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公开(公告)号：US20190393810A1
公开(公告)日：2019-12-26
申请号：US16446495
申请日：2019-06-19
申请人： KONICA MINOLTA, INC.
摘要： A driving device includes: a first motor that transmits power to a rotation shaft of a conveyance roller for conveying a paper sheet; a second motor that transmits power to the rotation shaft of the conveyance roller; and a motor controller that controls rotational speeds of the first and second motors by changing a control value, wherein the motor controller controls the control value of the first motor at multiple steps at a time of acceleration or deceleration and changes the control value of the second motor according to a change range of the control value of the first motor in synchronization with a timing when the control value of the first motor is changed.
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公开(公告)号：US20190146397A1
公开(公告)日：2019-05-16
申请号：US16182826
申请日：2018-11-07
申请人： Konica Minolta, Inc.
摘要： A fixing device includes a first fixing section, a second fixing section, the first fixing section and the second fixing section forming a fixing nip therebetween, a nip width adjusting section capable of adjusting a nip width of the fixing nip, a rotation speed detecting section that detects a rotation speed of the second fixing section, and a hardware processor that controls the nip width adjusting section to make the nip width equal to a predetermined reference nip width.
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公开(公告)号：US20200019108A1
公开(公告)日：2020-01-16
申请号：US16460695
申请日：2019-07-02
申请人： KONICA MINOLTA, INC.
IPC分类号： G03G15/00
摘要： An image forming device includes a resist roller feeding a sheet of paper toward an image forming unit; a first detector arranged upstream of the resist roller in a feeding direction to detect a front edge of the sheet of paper; a first calculator computing a first misalignment amount of the sheet of paper based on detection results by the first detector; a corrector correcting misalignment of the sheet of paper based on the computed first misalignment amount; a second detector arranged downstream of the resist roller in the feeding direction to detect a position of an end of the sheet of paper in a widthwise direction; a second calculator computing a second misalignment amount of the sheet of paper based on detection results by the second detector; and an adjuster adjusting a correction amount by the corrector based on the computed second misalignment amount.
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4.发明申请公开(公告)号：US20180342967A1
公开(公告)日：2018-11-29
申请号：US15962658
申请日：2018-04-25
申请人： KONICA MINOLTA, INC.
发明人： Keigo OGURA , Takumi SHIRAKUMA , Yumiko IZUMIYA
CPC分类号： H02P8/14 , H04N1/047 , H04N1/12 , H04N1/19515
摘要： A rotating motion control apparatus including a memory which stores an index value concerning a rotating speed of a stepping motor; and a hardware processor which determines the rotating speed of the stepping motor and controls operation of a driver which rotates the stepping motor according to the rotating speed; wherein the memory stores an arrangement of a speed index value and an arrangement of an acceleration index value, and the hardware processor controls the operation of the driver by combining a period of determining the rotating speed according to the arrangement of the speed index value and a period of calculating and determining the rotating speed based on the arrangement of the acceleration index value when the rotating speed is altered.
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公开(公告)号：US20150286175A1
公开(公告)日：2015-10-08
申请号：US14674987
申请日：2015-03-31
申请人： KONICA MINOLTA, INC.
发明人： Akira OKAMOTO , Kenji YAMAMOTO , Keigo OGURA , Takahiro YOKOYA , Hiroyuki FUTAMI
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2042
摘要： A fixing device includes a roller, a plurality of heaters, a temperature detection unit, and a control unit, wherein when the temperature detection unit detects that the temperature of longitudinal end portions of the roller is lower than a preset reference temperature, the control unit performs full-lighting control on the heater with the largest amount of heat supply to the end portions of the roller, out of the plurality of heaters, and performs lighting control on the heater with the second largest amount of heat supply to the end portions of the roller in a pattern at a predetermined duty ratio, or performs lighting control on the heater with the largest amount of heat supply to the end portions of the roller in a pattern at a predetermined duty ratio, and turns off the heater with the second largest amount of heat supply to the end portions of the roller.
摘要翻译： 定影装置包括辊，多个加热器，温度检测单元和控制单元，其中当温度检测单元检测到辊的纵向端部的温度低于预设的参考温度时，控制单元 对多个加热器中的辊的端部供热量最大的加热器执行全光照明控制，并且对加热器进行第二最大热量的点亮控制 辊子以预定的占空比形成图案，或者以预定的占空比以图案的方式对辊的端部以最大的热量供给的加热器进行照明控制，并且关闭具有第二大的加热器 对辊的端部的供热量。
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公开(公告)号：US20210311417A1
公开(公告)日：2021-10-07
申请号：US17219686
申请日：2021-03-31
申请人： Konica Minolta, Inc.
发明人： Keigo OGURA , Naoto SUGAYA , Hiroshi YAMAGUCHI , Tatsuo ISHIZUKA
摘要： Provided is an image forming apparatus including an image carrier, a transfer unit, a driver, a hardware processor, an adjustment mechanism, and a speed detector. The hardware processor sets a command value. The hardware processor performs a constant-torque control based on a constant-speed drive torque detected in a constant-speed control. In the constant-torque control, the hardware processor performs a feedback control to set a reference value to an average speed of the driver during passage of a first sheet and calculate a difference from an average speed during passage of a subsequent sheet so as to derive the command value. The hardware processor determines whether a load torque increase, its factor, and/or its influence exceeds a threshold, and forcibly sets the reference value to a speed detected while a pressure between the transfer unit and the image carrier is reduced by the adjustment mechanism from the pressure during image transfer.
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公开(公告)号：US20210034002A1
公开(公告)日：2021-02-04
申请号：US16942901
申请日：2020-07-30
申请人： Konica Minolta, Inc.
发明人： Shota IGO , Keigo OGURA , Naoto SUGAYA , Hiroshi YAMAGUCHI
摘要： An image forming apparatus includes the following, a pair of first conveying rollers, a pair of second conveying rollers, a driver which rotates and drives the second conveying rollers by a command value; and a controller which is able to control the driver to perform constant speed control to rotate the pair of second conveying rollers at a constant speed and to perform constant torque control to rotate the pair of second conveying rollers at a constant torque. When the constant torque control is performed, the controller starts the constant torque control with a predetermined initial torque. Based on sheet interval torque detected in a sheet interval term in which the pair of second conveying rollers do not sandwich and convey a sheet after the first sheet reaches the pair of second conveying rollers, the controller corrects the initial torque and calculates a command value for the next sheet.
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公开(公告)号：US20170336756A1
公开(公告)日：2017-11-23
申请号：US15598425
申请日：2017-05-18
申请人： Konica Minolta, Inc.
发明人： Akira OKAMOTO , Keigo OGURA
IPC分类号： G03G21/20
CPC分类号： G03G21/203 , G03G15/0189 , G03G15/161
摘要： An image formation apparatus having a recording medium held between a photosensitive drum and a transfer belt and transferring a toner image from the photosensitive drum to the recording medium includes: a first heating unit to which power is supplied directly from outside when power of the apparatus is off; a second heating unit used in heating control when the power of the apparatus is on; a humidity detection unit configured to detect humidity inside the apparatus; and a control unit configured to, when the power of the apparatus is on, heat the transfer belt by controlling the first heating unit and the second heating unit on the basis of output of the humidity detection unit, wherein the transfer belt is heated by the first heating unit when the power of the apparatus is off.
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公开(公告)号：US20140140710A1
公开(公告)日：2014-05-22
申请号：US14084798
申请日：2013-11-20
申请人： Konica Minolta, Inc.
发明人： Kazutoshi YOSHIMURA , Katsunori TAKAHASHI , Hiroyuki WATANABE , Kenichi HAYASHI , Keigo OGURA , Takahiro YOKOYA , Kenji TAMAKI
IPC分类号： G03G15/00
CPC分类号： G03G15/2028 , G03G15/6511
摘要： An image forming apparatus receives setting of an object to be adjusted, on an adjustment object selection screen when selecting an adjustment mode. After the object to be adjusted is set, camera(s) photograph(s) the object to be adjusted so that the image forming apparatus obtains photographed data of current object to be adjusted. Next, the apparatus searches photographed data of the object to be adjusted in the ideal state thereof from the database. Name of the object to be adjusted and related information in the photographed data agree with those of the photographed data of current object to be adjusted. The higher ranked related information is preferentially searched and it is determined whether or not pieces of the higher ranked related information thus preferentially searched agree with each other.
摘要翻译： 图像形成装置在选择调整模式时，在调整对象选择画面上接收待调整对象的设定。 在设置要调整的对象之后，照相机拍摄要调节的对象，使得图像形成装置获得要调整的当前对象的拍摄数据。 接下来，该装置从数据库中搜索要在其理想状态下调整的对象的拍摄数据。 要被调整的对象的名称和拍摄数据中的相关信息与被调整的当前对象的拍摄数据的名称一致。 优先搜索较高等级的相关信息，并且确定这样优先搜索的较高等级的相关信息的片段是否彼此一致。
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