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公开(公告)号：US20160170337A1
公开(公告)日：2016-06-16
申请号：US14942712
申请日：2015-11-16
Applicant: KONICA MINOLTA, INC.
Inventor： Jun ONISHI , Masahito TAKANO , Takashi FUJIWARA
IPC: G03G15/16
CPC classification number: G03G15/1615 , G03G2215/0129
Abstract: A belt tension adjustment mechanism which is provided on an inner side of an endless intermediate transfer belt and applies a tension to the intermediate transfer belt, the intermediate transfer belt being rotated when a toner image is transferred, and the belt tension adjustment mechanism including an elastic member which reduces a load applied to the intermediate transfer belt along with an increase in an inward displacement amount of the intermediate transfer belt.
Abstract translation: 一种带张力调节机构，其设置在环形中间转印带的内侧，并向中间转印带施加张力，中间转印带在调色剂图像转印时旋转，并且带张力调节机构包括弹性 该构件随着中间转印带的向内移动量的增加而减小施加到中间转印带上的载荷。
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公开(公告)号：US20170219049A1
公开(公告)日：2017-08-03
申请号：US15420177
申请日：2017-01-31
Applicant: Konica Minolta, Inc.
Inventor： Masahito Takano , Jun ONISHI , Takashi Fujiwara
CPC classification number: F16H1/22 , F16H35/00 , F16H2035/001 , G03G15/2053 , G03G21/1647 , G03G2221/1657
Abstract: A driving device includes: a first driving source; a second driving source; a first gear to which a driving force is transmitted from the first driving source; a second gear to which a driving force is transmitted from the second driving source; a third gear that engages with the first gear and the second gear; and a fixation shaft that pivotally supports the third gear, the fixation shaft being disposed such that a center of the fixation shaft, a rotation center of the first gear and a rotation center of the second gear are disposed on a straight line in which the fixation shaft is provided through the third gear; and a hole having a diameter for compensating eccentricity of the first gear, the second gear and the third gear is formed in the third gear.
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公开(公告)号：US20170023889A1
公开(公告)日：2017-01-26
申请号：US15287238
申请日：2016-10-06
Applicant: KONICA MINOLTA, INC.
Inventor： Jun ONISHI , Masahito TAKANO , Takashi FUJIWARA
IPC: G03G15/16
CPC classification number: G03G15/1615 , G03G2215/0129
Abstract: A belt tension adjustment mechanism provided on an inner side of an endless intermediate transfer belt and applying a tension to the intermediate transfer belt being rotated when a toner image is transferred on the intermediate transfer belt, said belt tension adjustment mechanism includes a holder having an opening section at one surface thereof; and an elastic member contained to be fixed in the holder while being compressed in a running direction of the intermediate transfer belt and having a convex section, wherein the convex section protrudes from the opening section of the holder toward a direction orthogonal to an image transfer surface of the intermediate transfer belt and is in direct contact with the intermediate transfer belt.
Abstract translation: 一种带张力调节机构，其设置在环形中间转印带的内侧，并且当调色剂图像转印到中间转印带上时，将中间转印带张紧，所述带张力调节机构包括具有开口的保持器 在其一个表面上; 以及弹性构件，其被容纳固定在所述保持件中，同时在所述中间转印带的行进方向上被压缩并具有凸部，所述凸部从所述保持器的开口部朝向与所述图像转印面正交的方向突出 并且与中间转印带直接接触。
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公开(公告)号：US20140334855A1
公开(公告)日：2014-11-13
申请号：US14272630
申请日：2014-05-08
Applicant: KONICA MINOLTA, INC.
Inventor： Jun ONISHI , Masahito Takano , Takashi Fujiwara
IPC: G03G15/01
CPC classification number: G03G15/1615 , G03G15/5008 , G03G15/505 , G03G15/5054 , G03G15/5058 , G03G21/14 , G03G21/145 , G03G2215/00599 , G03G2215/0129 , G03G2215/0158
Abstract: An image forming apparatus includes upstream-side and downstream-side detection parts and a control section. The detection parts are disposed on a moving path of an intermediate transfer belt or a conveyor belt and detect a speed of the belt. The control section performs control to correct color misregistration of images composed of colors to be formed on the intermediate transfer belt or a recording medium conveyed by the conveyance belt on the basis of the detection result. The control unit calculates a difference between the speed detected by the upstream-side detection part and the speed detected by the downstream-side detection part after a predetermined time elapses since the upstream-side detection part detects the speed and performs the control on the basis of the difference. The predetermined time is obtained by dividing a distance between the detection parts by a target speed of the belt.
Abstract translation: 图像形成装置包括上游侧和下游侧检测部以及控制部。 检测部件设置在中间转印带或传送带的移动路径上并检测带的速度。 控制部进行基于检测结果的中间转印带或由输送带输送的记录介质上形成的颜色的图像的颜色不对齐的控制。 控制单元计算从上游侧检测部检测到的速度经过预定时间后由上游侧检测部检测到的速度与由下游侧检测部检测出的速度之间的差异，并且基于该上限侧检测部 的区别。 通过将检测部之间的距离除以带的目标速度来获得预定时间。
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Patent Agency Ranking
公开(公告)号：US20190137917A1
公开(公告)日：2019-05-09
申请号：US16182936
申请日：2018-11-07
Applicant: KONICA MINOLTA, INC.
Inventor： Masahito TAKANO , Jun ONISHI , Takashi FUJIWARA
Abstract: An image forming apparatus including: a photoreceptor drum; an intermediate transfer belt; a primary transferer; a secondary transferer, and a hardware processor which suppresses speed change of the intermediate transfer belt at a timing of the sheet entering the secondary transferer and at a timing of the sheet being ejected from the secondary transferer, wherein the hardware processor calculates speed changes of the intermediate transfer belt and the photoreceptor drum at the timing of the sheet entering the secondary transferer and at the timing of the sheet being ejected from the secondary transferer, and calculates a transmission rate between the intermediate transfer belt and the photoreceptor drum based on the calculated speed changes, and the hardware processor adjusts an operation amount of the driving roller based on the calculated transmission rate.
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公开(公告)号：US20200371455A1
公开(公告)日：2020-11-26
申请号：US16849488
申请日：2020-04-15
Applicant: Konica Minolta, Inc.
Inventor： Masahito TAKANO , Jun ONISHI , Takashi FUJIWARA
IPC: G03G15/16
Abstract: A pressing drive mechanism, which drives a secondary transfer roller to press an intermediate transfer belt, includes: a motor that generates a driving force for driving the secondary transfer roller in a driving direction; a transmission mechanism that transmits the driving force to the secondary transfer roller to drive the secondary transfer roller in the driving direction; a hardware processor that controls the driving force of the motor to control a position in the driving direction of the secondary transfer roller; and a biasing member that biases the secondary transfer roller in a direction of pressing the intermediate transfer belt. The hardware processor controls the driving force of the motor in synchronization with a timing at which a front end of a sheet reaches the secondary transfer roller; and drives the secondary transfer roller to a predetermined pressing position by using a biasing force by the biasing member.
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公开(公告)号：US20180335734A1
公开(公告)日：2018-11-22
申请号：US15964141
申请日：2018-04-27
Applicant: KONICA MINOLTA, INC.
Inventor： Takashi FUJIWARA , Jun ONISHI , Masahito TAKANO
CPC classification number: G03G15/2028 , G03G15/1615 , G03G15/5004 , G03G15/55 , G03G15/602 , G03G15/607 , G03G2215/2045 , G03G2221/1657 , H04N1/506 , H04N1/56
Abstract: An image forming apparatus includes: a driving roller that conveys a paper sheet; a detector that detects a desired point on the driving roller; and a hardware processor that: acquires a waveform signal indicating one of a change in an image forming position with respect to the paper sheet and a change in a sheet conveyance velocity; extracts a synchronous waveform signal from the waveform signal acquired by the hardware processor, the synchronous waveform signal being synchronized with one revolution of the driving roller, the one revolution being detected by the detector; and inputs a drive signal to a drive source of the driving roller, the drive signal being input to weaken an amplitude of the synchronous waveform signal extracted by the hardware processor.
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公开(公告)号：US20170129724A1
公开(公告)日：2017-05-11
申请号：US15334960
申请日：2016-10-26
Applicant: Konica Minolta, Inc.
Inventor： Takashi FUJIWARA , Jun ONISHI , Masahito TAKANO
CPC classification number: B65H3/02 , B65H1/04 , B65H3/047 , B65H3/126 , B65H3/128 , B65H3/48 , B65H3/56 , B65H3/60 , B65H2403/512 , B65H2404/52131 , B65H2404/563 , B65H2405/1134 , G03G15/6511 , G03G15/6529
Abstract: A sheet feeder device includes: a sheet feed tray configured to store a sheet stack formed with a plurality of paper sheets; an elastic member capable of expanding and contracting; a contact mechanism configured to bring the elastic member into contact with an edge of the sheet stack; an expansion mechanism configured to expand the elastic member in a direction of stacking of the paper sheets; and a control unit configured to cause the expansion mechanism to expand the elastic member while the elastic member is kept in contact with the edge of the sheet stack by the contact mechanism.
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公开(公告)号：US20160259284A1
公开(公告)日：2016-09-08
申请号：US15054577
申请日：2016-02-26
Applicant: KONICA MINOLTA, INC.
Inventor： Takashi FUJIWARA , Jun ONISHI , Masahito TAKANO
IPC: G03G15/16
CPC classification number: G03G15/6558 , G03G15/1605 , G03G15/5008 , G03G15/6594 , G03G2215/00481 , G03G2215/0132
Abstract: An image forming apparatus includes: a first roller having an elastic part; a second roller configured to form a nip between the first roller and the second roller; a holding member configured to hold the second roller; and a control section configured to control the position of the holding member such that the center distance between the first roller and the second roller is maintained at a constant value when a sheet passes through the nip.
Abstract translation: 一种成像设备包括：具有弹性部分的第一辊; 第二辊，被配置为在所述第一辊和所述第二辊之间形成辊隙; 构造成保持所述第二辊的保持构件; 以及控制部，被配置为当片材通过所述辊隙时，控制所述保持构件的位置，使得所述第一辊和所述第二辊之间的中心距离保持在恒定值。
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