公开(公告)号：US07463854B2

公开(公告)日：2008-12-09

申请号：US11764685

申请日：2007-06-18

Applicant: Shinichi Nishida ,  Kazunari Hagiwara ,  Yasushi Shimizu ,  Katsunori Yokoyama ,  Naoto Kichijima ,  Hirokazu Usami

Inventor： Shinichi Nishida ,  Kazunari Hagiwara ,  Yasushi Shimizu ,  Katsunori Yokoyama ,  Naoto Kichijima ,  Hirokazu Usami

IPC: G03G15/06

CPC classification number: G03G15/0812

Abstract: A sheet-shaped regulation member is supported by a supporting unit with an elastic force occurring by bending a sheet-shaped regulation member in the longitudinal direction thereof, and a force received as a result of being pressed by a developing roller. Thus, direct contact can be securely made onto a developer bearing member, and a regulation member can be provided which enables easily attaching thereof to the supporting member, as well as enabling a developing apparatus, processing cartridge, and image forming apparatus, to be reduced in size.

Abstract translation: 片状调节构件由支撑单元支撑，弹性力是通过使片状调节构件沿其长度方向弯曲而产生的，并且受到由显影辊的挤压而接收的力。 因此，可以可靠地进行与显影剂承载部件的接触，并且可以设置能够容易地将其附接到支撑部件上的调节部件，并且能够减少显影装置，处理盒和成像装置的缩小 在尺寸方面。

公开(公告)号：US20100034564A1

公开(公告)日：2010-02-11

申请号：US12535803

申请日：2009-08-05

Applicant: Juun Horie ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Hirokazu Usami

Inventor： Juun Horie ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Hirokazu Usami

IPC: G03G15/08

CPC classification number: G03G15/0806 ,  G03G2215/0607

Abstract: An image forming apparatus includes a developer carrying member to which a developing bias is applied. A frequency f of a developing bias waveform, a developing area S1 which is a time-integrated value of a difference between a voltage value of the developing bias and a solid electrostatic image potential VL in a developing period of the developing bias, a collecting area S2 which is a time-integrated value of a difference between the voltage value of the developing bias and VL in a collecting period of the developing bias, and a developing contrast value Vcon are used for defining a range of a value of the developing bias frequency f, a range of a value of a voltage change rate α at VL during transition of the developing bias voltage value from a developing-side voltage to a collecting-side voltage, and a range of a value represented by the formula: {(S1−1.28×S2)×f/Vcon}×exp(−2.0×10−5×f/Hz).

Abstract translation: 图像形成装置包括施加显影偏压的显影剂承载构件。 显影偏压波形的频率f，在显影偏压的显影期间显影偏压的电压值与固体静电图像电位VL之间的差的时间积分值的显影区域S1，收集区域 作为显影偏压的收集期间的显影偏压的电压值与VL之间的差的时间积分值S2和显影对比度值Vcon用于定义显影偏压频率的值的范围 f，在显影偏压电压值从显影侧电压转移到集电侧电压的转变期间VL的电压变化率α的值的范围以及由以下公式表示的值的范围：{（S1 -1.28xS2）xf / Vcon} xexp（-2.0x10-5xf / Hz）。

公开(公告)号：US20080310886A1

公开(公告)日：2008-12-18

申请号：US12132935

申请日：2008-06-04

Applicant: Yasushi Shimizu ,  Kazunari Hagiwara ,  Shinichi Nishida ,  Hirokazu Usami ,  Hiraku Sasaki

Inventor： Yasushi Shimizu ,  Kazunari Hagiwara ,  Shinichi Nishida ,  Hirokazu Usami ,  Hiraku Sasaki

IPC: G03G15/09 ,  G03G15/08

CPC classification number: G03G15/0812 ,  G03G2215/0866

Abstract: A developer regulating apparatus including: a flexible sheet member, which regulates a thickness of a developer layer on a developing roller; and a holding member having wall surfaces for holding the sheet member in a curved state, wherein when the sheet member is not pressed by the developing roller, an angle of circumference of an arc of the sheet member is not larger than 180 degrees, a perpendicular bisector of a chord corresponding to the arc when the sheet member is pressed by the developing roller is provided downstream in a rotation direction of the developing roller with respect to a normal line of a surface of the developing roller which is parallel to the perpendicular bisector, and a sheet member holding line of the wall surface of the holding member upstream in the rotation direction is provided coplanar with the normal line or upstream of the normal line.

Abstract translation: 一种显影剂调节装置，包括：调节显影辊上的显影剂层的厚度的柔性片状部件; 以及保持构件，其具有用于将片状构件保持在弯曲状态的壁面，其中，当片状构件未被显影辊挤压时，片状构件的圆弧的圆周角度不大于180度，垂直 在显影辊被按压显影辊的同时，对应于弧的和弦的二等分线相对于平行于垂直平分线的显影辊的表面的法线在显影辊的旋转方向的下游设置， 并且沿着旋转方向上游的保持构件的壁面的片材保持线设置为与法线的法线或法线的上游共面。

公开(公告)号：US20110111337A1

公开(公告)日：2011-05-12

申请号：US12939086

申请日：2010-11-03

Applicant: Juun Horie ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Hirokazu Usami ,  Yoshinobu Baba ,  Koh Ishigami ,  Hitoshi Oda

Inventor： Juun Horie ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Hirokazu Usami ,  Yoshinobu Baba ,  Koh Ishigami ,  Hitoshi Oda

IPC: G03G9/083

CPC classification number: G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1131

Abstract: In the formation of images by a two-component development system, provided is a magnetic carrier that can be used to output an image which has sufficient density, in which few white spots are present in a low-density portion located near the boundary between a high-density region and a low-density region, and in which the low-density portion has good graininess. The magnetic carrier contains magnetic carrier particles each of which has resin and a magnetic particle. The magnetic particle contains ferrite phases and phases comprising a perovskite-structured compound. The ferrite phases and phases comprising a perovskite-structured compound are combined.

Abstract translation: 在通过双组分显影系统形成图像时，提供了一种磁性载体，其可以用于输出具有足够密度的图像，其中位于靠近边界附近的低密度部分中存在少量白点 高密度区域和低密度区域，其中低密度部分具有良好的颗粒度。 磁性载体包含各自具有树脂和磁性颗粒的磁性载体颗粒。 磁性颗粒含有铁素体相和包含钙钛矿结构化合物的相。 组合包含钙钛矿结构化合物的铁素体相和相。

公开(公告)号：US07877030B2

公开(公告)日：2011-01-25

申请号：US12535803

申请日：2009-08-05

Applicant: Juun Horie ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Hirokazu Usami

Inventor： Juun Horie ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Hirokazu Usami

IPC: G03G15/06

CPC classification number: G03G15/0806 ,  G03G2215/0607

Abstract: An image forming apparatus includes a developer carrying member to which a developing bias is applied. A frequency f of a developing bias waveform, a developing area S1 which is a time-integrated value of a difference between a voltage value of the developing bias and a solid electrostatic image potential VL in a developing period of the developing bias, a collecting area S2 which is a time-integrated value of a difference between the voltage value of the developing bias and VL in a collecting period of the developing bias, and a developing contrast value Vcon are used for defining a range of a value of the developing bias frequency f, a range of a value of a voltage change rate α at VL during transition of the developing bias voltage value from a developing-side voltage to a collecting-side voltage, and a range of a value represented by the formula: {(S1−1.28×S2)×f/Vcon}×exp(−2.0×10−5×f/Hz).

Abstract translation: 图像形成装置包括施加显影偏压的显影剂承载构件。 显影偏压波形的频率f，在显影偏压的显影期间显影偏压的电压值与固体静电图像电位VL之间的差的时间积分值的显影区域S1，收集区域 作为显影偏压的收集期间的显影偏压的电压值与VL之间的差的时间积分值S2和显影对比度值Vcon用于定义显影偏压频率的值的范围 f，显影偏压电压值从显影侧电压向集电侧电压转变时的VL电压变化率α的范围，以及由下式表示的值的范围：{（S1 -1.28×S2）×f / Vcon}×exp（-2.0×10-5×f / Hz）。

公开(公告)号：US20100159382A1

公开(公告)日：2010-06-24

申请号：US12632563

申请日：2009-12-07

Applicant: Juun Horie ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Hirokazu Usami ,  Yoshinobu Baba ,  Koh Ishigami ,  Kazuo Uchida ,  Katsuhiro Watanabe ,  Jumpei Shirono

Inventor： Juun Horie ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo ,  Tomoaki Miyazawa ,  Hirokazu Usami ,  Yoshinobu Baba ,  Koh Ishigami ,  Kazuo Uchida ,  Katsuhiro Watanabe ,  Jumpei Shirono

IPC: G03G9/107 ,  G03G9/00 ,  G03G13/06

CPC classification number: G03G9/10 ,  G03G9/107 ,  G03G9/1131 ,  G03G9/1136

Abstract: A carrier has an impedance Z having a frequency dependence, obtained by alternating current impedance measurement. When the frequency dependence is fitted by a fitting function, parameter α lies in a range of 0.70 to 0.90 in an electric field of 103 V/cm.

Abstract translation: 载体具有通过交流阻抗测量获得的具有频率依赖性的阻抗Z。 当通过拟合函数拟合频率依赖性时，在103V / cm的电场中，参数α在0.70〜0.90的范围内。

公开(公告)号：US20070297833A1

公开(公告)日：2007-12-27

申请号：US11764685

申请日：2007-06-18

Applicant: Shinichi Nishida ,  Kazunari Hagiwara ,  Yasushi Shimizu ,  Katsunori Yokoyama ,  Naoto Kichijima ,  Hirokazu Usami

Inventor： Shinichi Nishida ,  Kazunari Hagiwara ,  Yasushi Shimizu ,  Katsunori Yokoyama ,  Naoto Kichijima ,  Hirokazu Usami

IPC: G03G15/08

CPC classification number: G03G15/0812

Abstract: A sheet-shaped regulation member is supported by a supporting unit with an elastic force occurring by bending a sheet-shaped regulation member in the longitudinal direction thereof, and a force received as a result of being pressed by a developing roller. Thus, direct contact can be securely made onto a developer bearing member, and a regulation member can be provided which enables easily attaching thereof to the supporting member, as well as enabling a developing apparatus, processing cartridge, and image forming apparatus, to be reduced in size.

Abstract translation: 片状调节构件由支撑单元支撑，弹性力是通过使片状调节构件沿其长度方向弯曲而产生的，并且受到由显影辊的挤压而接收的力。 因此，可以可靠地进行与显影剂承载部件的接触，并且可以设置能够容易地将其附接到支撑部件上的调节部件，并且能够减少显影装置，处理盒和成像装置的缩小 在尺寸方面。