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公开(公告)号：US4134147A
公开(公告)日：1979-01-09
申请号：US832032
申请日：1977-09-09
Applicant: Toshio Watanabe
Inventor： Toshio Watanabe
CPC classification number: G03G15/1645 , G03G15/6561 , G03G2215/00405 , G03G2215/00409 , G03G2215/00603 , G03G2215/00611 , G03G2215/00679 , G03G2215/00763 , G03G2215/00776
Abstract: In an electrostatographic copying system wherein an image on an initial image support is transferred to a copy sheet, particularly by a transfer corona generator assisted by an auxiliary transfer corona generator applying pre-transfer charges to the initial image support, opposing conductive rollers measure the conductivity of each copy sheet prior to transfer and through a control circuit vary the voltages applied to both the transfer corona generator and the auxiliary transfer corona generator means accordingly. A relay switching system is disclosed automatically selecting between AC and two levels of DC transfer voltages in response to four different copy sheet humidity conditions to optimize the image transfer.
Abstract translation: 在其中将初始图像载体上的图像转印到复印纸上，特别是由辅助转印电晕发生器辅助的转印电晕发生器将预转印电荷施加到初始图像载体的静电复印系统中，相对的导电辊测量电导率 并且通过控制电路相应地改变施加到转印电晕发生器和辅助转印电晕发生器装置两者的电压。 公开了一种继电器开关系统，响应于四种不同的复印纸湿度条件自动选择AC和两级DC转印电压，以优化图像转印。
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公开(公告)号：US12019380B2
公开(公告)日：2024-06-25
申请号：US18156951
申请日：2023-01-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takanori Mitani , Takao Kume , Satoshi Nishida , Isamu Takeda , Kohei Okayasu
CPC classification number: G03G15/0808 , G03G9/09328 , G03G15/0173 , G03G15/161 , G03G2215/00177 , G03G2215/00679
Abstract: An image-forming apparatus includes first and second photosensitive drums, first and second image-forming portion including first and second development rollers configured to bear developers composed of first and second toner particles and organosilicon protrusions formed on surfaces of the first and second toner particles, an intermediate transfer member to which a developer image is to be transferred in first and second contact portions in contact with the first and second photosensitive drums, and a transfer member configured to transfer the developer image to a recording material in a transfer portion. The first contact portion is formed downstream of the transfer portion and upstream of the second contact portion in a movement direction of the surface of the intermediate transfer member. A protrusion formed on the second developer has a lower height than a protrusion formed on the first developer.
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公开(公告)号：US20230367252A1
公开(公告)日：2023-11-16
申请号：US18301494
申请日：2023-04-17
Applicant: Yuma MATSUMOTO , Keitaro Shoji , Yuusuke Furuichi
Inventor： Yuma MATSUMOTO , Keitaro Shoji , Yuusuke Furuichi
CPC classification number: G03G15/6529 , B65H5/025 , B65H2553/27 , B65H2801/06 , G03G2215/00734 , G03G2215/00666 , G03G2215/00679
Abstract: A conveyance device includes a first temperature detector and a second temperature detector that detect a temperature of a heater. A recording medium detector detects a recording medium. The first temperature detector is separated from a center position of an elastic layer of a pressure rotator farther than the second temperature detector is in an orthogonal direction perpendicular to a recording medium conveyance direction. The first temperature detector is separated from the center position for a first length and disposed in a first span defined by the center position in the orthogonal direction. The recording medium detector is disposed in a second span opposite to the first span, separated from the center position for a second length smaller than the first length, and disposed in a minimum recording medium conveyance span where the recording medium having a minimum width in the orthogonal direction is conveyed.
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公开(公告)号：US10035672B2
公开(公告)日：2018-07-31
申请号：US15316400
申请日：2014-06-05
Applicant: Hewlett-Packard Development Company, L.P. , Javier Deocon Mir , Daniel Gonzalez Perello , Carlos Ciuraneta Sanchez
Inventor： Javier Deocon Mir , Daniel Gonzalez Perello , Carlos Ciuraneta Sanchez
CPC classification number: B65H5/36 , B65H29/58 , B65H29/60 , B65H2301/51212 , B65H2402/10 , B65H2404/63 , B65H2404/632 , B65H2404/693 , B65H2404/7414 , B65H2511/112 , B65H2511/214 , B65H2511/51 , B65H2513/10 , B65H2515/81 , G03G15/1695 , G03G15/6558 , G03G2215/00679 , G03G2215/00801 , B65H2220/01 , B65H2220/02 , B65H2220/11 , B65H2220/03
Abstract: A printing device is described in which there is a media guide that is arranged to guide a printable media substrate from an upstream media path towards an input of the printing device or away from an output of the printing device towards a downstream media path. The media guide is movable between a first position and a second position. In the first position the media guide is arranged to guide the printable media along a respective media path. In the second position, which is spaced apart from the first position, the media guide forms a buffer region into which a variable amount of media substrate can collect.
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公开(公告)号：US09938097B2
公开(公告)日：2018-04-10
申请号：US15167023
申请日：2016-05-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Atsushi Murakami , Daisuke Aoki , Yu Shuhama
CPC classification number: B65H3/0684 , B65H3/54 , B65H7/00 , G03G15/6511 , G03G2215/00679
Abstract: A cut-out is provided in a lower guide so as to permit a return claw to move between a retracted position and a protruded position. Furthermore, an upper surface of the return claw positioned in the protruded position functions as a guide portion that guides an underside of a sheet that has been manually fed.
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Patent Agency Ranking
公开(公告)号：US20180080505A1
公开(公告)日：2018-03-22
申请号：US15635732
申请日：2017-06-28
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yohei Hashimoto
CPC classification number: F16D23/12 , B65H3/0669 , B65H7/00 , B65H2402/10 , B65H2403/724 , F16D27/10 , F16D2023/123 , G03G15/6529 , G03G21/1647 , G03G2215/00679 , G03G2221/1657
Abstract: A driving force transmitter, including a coupling member, a cam member, an electromagnetic clutch, a sensor, and a controller, is provided. The coupling member arranged between a driving source and a driven device includes a first shaft, a second shaft, a stationary coupling member, and a movable coupling member which is movable between a separating position and an engaging position. The cam member is rotatable to move the movable coupling member. The electromagnetic clutch connects the cam member with the driving source when electrically powered and disconnects the cam member when not electrically powered. The sensor detects rotational positions of the cam member. The controller switches the electricity to the electromagnetic clutch according to the rotational positions of the cam member.
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公开(公告)号：US09908727B2
公开(公告)日：2018-03-06
申请号：US15208798
申请日：2016-07-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shingo Iwami , Hiroshige Inoue
CPC classification number: B65H5/36 , B65H5/062 , B65H5/26 , B65H2404/6111 , B65H2404/63 , G03G15/6529 , G03G15/6552 , G03G2215/00679
Abstract: A sheet conveyance apparatus includes a first conveyance unit conveying a sheet, the first conveyance unit including a first rotary member, and a second rotary member contacting with the first rotary member at a contact portion, a second conveyance unit arranged downstream, in a sheet conveyance direction, of the first conveyance unit, a bent conveyance guide forming a sheet conveying path between the first conveyance unit and the second conveyance unit such that the sheet conveying path is bent, and a swing guide provided upstream, in the sheet conveyance direction, of the bent conveyance guide, and guiding the sheet to the bent conveyance guide at a downstream side, in the sheet conveyance direction, of the contact portion. A center of rotation of the swing guide is provided coaxially as a rotation axis of the first rotary member.
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公开(公告)号：US20180032021A1
公开(公告)日：2018-02-01
申请号：US15655983
申请日：2017-07-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO
CPC classification number: G03G15/757 , F16H3/30 , F16H3/78 , G03G21/1647 , G03G2215/00679 , G03G2221/1657
Abstract: A drive transmitting device includes a first rotator, a second rotator, a rotation driver, and a linker. The first rotator is rotatable. The second rotator is rotatable in a state where the second rotator comes into pressure contact with the first rotator. The rotation driver rotates the first rotator. The linker links speed change operation with pressure change operation, the speed change operation being operation to change a speed ratio of a surface of the first rotator and a surface of the second rotator, the pressure change operation being operation to change pressure force of the second rotator to the first rotator.
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139.发明申请公开(公告)号：US20180013366A1
公开(公告)日：2018-01-11
申请号：US15624497
申请日：2017-06-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroki Sato
CPC classification number: H02P21/20 , B65H5/062 , B65H2301/44318 , B65H2801/06 , G03G15/6529 , G03G2215/00679 , G03G2221/1657 , H02P6/085 , H02P8/16 , H02P21/141 , H02P21/18 , H02P21/26 , H02P27/08 , H04N1/00602 , H04N1/00604 , H04N1/00798 , H04N2201/0081
Abstract: According to an aspect of the present invention, a motor control apparatus includes a first driving circuit connected to a motor first phase winding and having H bridge circuit first switching elements, a second driving circuit connected to second phase winding of the motor and having H bridge circuit second switching elements, first and second pulse generators. a detector, an estimator, and a selector. The first pulse generator generates a first PWM signal having a first level signal and a second level signal. The second pulse generator generates a second PWM signal having a first and a second level signal. The selector selects whether to detect a driving current flowing through the first phase winding or to estimate a driving current flowing through the first phase winding. The first pulse generator generates the first PWM signal based on a driving current value output from the detector or the estimator.
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公开(公告)号：US20170355546A1
公开(公告)日：2017-12-14
申请号：US15603674
申请日：2017-05-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takuma Koizumi
CPC classification number: B65H9/006 , B65H2404/13161 , B65H2801/06 , G03G15/6561 , G03G15/6567 , G03G2215/00679
Abstract: A sheet conveyance device includes a registration roller pair including a first roller and a second roller, configured to form a nip by the first roller and the second roller, and configured to correct a skew of a sheet conveyed thereto by allowing the sheet to abut the nip. The first roller includes an outer peripheral surface with a groove portion, the groove portion being formed in a region in which a corner portion of a sheet abuts the outer peripheral surface, and causing a part of the outer peripheral surface to be concave and another part of the outer peripheral surface to be convex in an axial direction.
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