公开(公告)号：US09316941B2

公开(公告)日：2016-04-19

申请号：US14799530

申请日：2015-07-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takeshi Amano ,  Akihiro Watanabe

IPC: G03G15/08

CPC classification number: G03G15/0822 ,  G03G15/0856 ,  G03G15/0879 ,  G03G15/0891

Abstract: A development execution control portion executes a development process by causing an intermediate lateral conveyance portion and a developing portion to operate. A developer replenishment control portion causes a developer replenishment portion to operate when a detection result of a developer amount sensor satisfies a predetermined shortage condition. A post-development processing control portion causes the intermediate lateral conveyance portion and the developing portion to operate continuously from and after a development process and then stop.

Abstract translation: 显影执行控制部分通过使中间横向传送部分和显影部分操作来执行显影处理。 当显影剂量传感器的检测结果满足预定的不足状况时，显影剂补充控制部分使得显影剂补充部分操作。 显影后处理控制部分使得中间横向传送部分和显影部分在显影处理之后和之后连续地操作，然后停止。

公开(公告)号：US20150261124A1

公开(公告)日：2015-09-17

申请号：US14642062

申请日：2015-03-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shizuka Ikazaki ,  Akihiro Watanabe ,  Tamotsu Shimizu

IPC: G03G15/06

CPC classification number: G03G15/065 ,  G03G15/0803

Abstract: An image forming apparatus includes an image carrier, a developer carrier, a bias applying section, a leakage detecting section, and a bias controlling section. The developer carrier carries developer in the form of a layer of magnetized filaments to supply toner to the image carrier. The bias applying section applies to the developer carrier a development bias including a direct current voltage VmagDC and an alternating current voltage VmagAC superposed on each other. The leakage detecting section causes a discharge between the image carrier and the developer carrier and detects a leakage voltage when the discharge occurs. The leakage detecting section performs the leakage voltage detection in a blank region of the image carrier bearing no electrostatic latent image. The bias controlling section determines an alternating current voltage VmagAC according to a detected leakage voltage, and a frequency of the alternating current voltage VmagAC according to the voltage VmagAC.

Abstract translation: 图像形成装置包括图像载体，显影剂载体，偏压施加部，泄漏检测部和偏置控制部。 显影剂载体以一层磁化细丝的形式携带显影剂，以向图像载体提供调色剂。 偏置施加部分对显影剂载体施加包括彼此重叠的直流电压VmagDC和交流电压VmagAC的显影偏压。 泄漏检测部分在图像载体和显影剂载体之间引起放电，并且在放电发生时检测泄漏电压。 泄漏检测部在不具有静电潜像的图像载体的空白区域中执行泄漏电压检测。 偏置控制部根据检测到的泄漏电压和交流电压VmagAC的频率根据电压VmagAC来决定交流电压VmagAC。

公开(公告)号：US11906911B2

公开(公告)日：2024-02-20

申请号：US17863314

申请日：2022-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Eiji Gyotoku ,  Akihiro Watanabe

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0849 ,  G03G15/0893 ,  G03G15/0896 ,  G03G15/0853 ,  G03G2215/083 ,  G03G2215/0819 ,  G03G2215/0822 ,  G03G2215/0827 ,  G03G2215/0888

Abstract: A development device includes a development container, a first conveying member, a second conveying member, a toner concentration sensor, and a developer carrier. The toner concentration sensor is arranged at a wall portion of the first conveying chamber in which the first conveying member is arranged. The first and second conveying members are equal to each other in outer diameter and shaft diameter, the outer diameter being 2.3 times the shaft diameter or more but 3.0 times the shaft diameter or less. Where D represents the shaft diameter of the first conveying member, L represents an axial length of the first conveying member, and K represents a distance of a center position of a sensing surface of the toner concentration sensor from a downstream end of the first conveying chamber in the first direction, formula (1) is satisfied: 500

公开(公告)号：US11809096B2

公开(公告)日：2023-11-07

申请号：US17968400

申请日：2022-10-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro Watanabe ,  Eiji Gyotoku

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0879 ,  G03G15/0891 ,  G03G2215/0852

Abstract: A toner conveyance device includes a vertical conveyance portion, a horizontal conveyance portion, a conveyance member, and a loosening member. The vertical conveyance portion conveys a toner or a developer containing the toner conveyed therein through an entry port connected to a main-body-side conveyance path by causing the toner or the developer to fall vertically. The horizontal conveyance portion is connected to a lower end of the vertical conveyance portion and conveys the toner or the developer in a horizontal direction by using the conveyance member arranged in the horizontal conveyance portion. The loosening member is arranged so as to be movable between a first position below a connection portion between the main-body-side conveyance path and the entry port and a second position protruding upward beyond the connection portion and reciprocates in a vertical direction at each of the first position and the second position.

公开(公告)号：US09274453B2

公开(公告)日：2016-03-01

申请号：US14571168

申请日：2014-12-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro Oishi ,  Yuji Kamiyama ,  Akihiro Watanabe ,  Tamotsu Shimizu ,  Yoshinobu Yoneima ,  Shizuka Okada ,  Sakae Saito

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G15/0818 ,  G03G15/09

Abstract: A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. In the roller main body, a boehmite layer has been formed on an outer circumferential surface of a base body that is made of a metal including aluminum, by a surface treatment by a boehmite method, and a resin coat layer has been formed on a surface of the boehmite layer, the resin coat layer being made of a resin material having electric conductivity.

Abstract translation: 显影辊包括辊状主体，其被设置为面对而不接触图像载体的外周表面。 在辊主体中，通过用勃姆石法进行表面处理，在由铝构成的金属的基体的外周面上形成勃姆石层，在表面上形成树脂涂层 的勃姆石层，树脂涂层由具有导电性的树脂材料制成。

公开(公告)号：US20160018757A1

公开(公告)日：2016-01-21

申请号：US14799530

申请日：2015-07-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takeshi Amano ,  Akihiro Watanabe

IPC: G03G15/08

CPC classification number: G03G15/0822 ,  G03G15/0856 ,  G03G15/0879 ,  G03G15/0891

Abstract: A development execution control portion executes a development process by causing an intermediate lateral conveyance portion and a developing portion to operate. A developer replenishment control portion causes a developer replenishment portion to operate when a detection result of a developer amount sensor satisfies a predetermined shortage condition. A post-development processing control portion causes the intermediate lateral conveyance portion and the developing portion to operate continuously from and after a development process and then stop.

Abstract translation: 显影执行控制部分通过使中间横向传送部分和显影部分操作来执行显影处理。 当显影剂量传感器的检测结果满足预定的不足状况时，显影剂补充控制部分使得显影剂补充部分操作。 显影后处理控制部分使得中间横向传送部分和显影部分在显影处理之后和之后连续地操作，然后停止。

公开(公告)号：US09134653B2

公开(公告)日：2015-09-15

申请号：US14279166

申请日：2014-05-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro Watanabe

IPC: G03G15/09 ,  G03G15/095 ,  G03G13/095 ,  G03G15/08

CPC classification number: G03G15/0907 ,  G03G13/095 ,  G03G15/0812 ,  G03G15/095

Abstract: When image formation is not performed, an image forming apparatus performs a toner collection mode that includes a first positive rotation step of rotating a developer carrying member and a toner carrying member in the same direction as a direction at the time of image formation, in a state where a second bias applied to the toner carrying member is set at a higher voltage on the same polarity side as a toner than a first bias, and a reverse rotation step of rotating the developer carrying member and the toner carrying member in a direction reverse to the direction at the time of image formation after the first positive rotation step is performed, in a state where the first bias is set at a higher voltage on the same polarity side as the toner than the second bias.

Abstract translation: 当不执行图像形成时，图像形成装置执行调色剂收集模式，该调色剂收集模式包括在与图像形成时的方向相同的方向上旋转显影剂承载构件和调色剂承载构件的第一正旋转步骤， 将施加到调色剂承载构件的第二偏压设置在与调色剂相同的极性侧比第一偏压更高的电压的状态，以及逆向旋转步骤，使显影剂承载构件和调色剂承载构件沿相反方向旋转 在第一正旋转步骤之后的图像形成时的方向，在第一偏压被设置在与第二偏压相同的调色剂极性一侧的较高电压的状态下。

公开(公告)号：US09122194B2

公开(公告)日：2015-09-01

申请号：US14572642

申请日：2014-12-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Yuji Kamiyama ,  Akihiro Watanabe ,  Yoshinobu Yoneima ,  Shizuka Okada ,  Sakae Saito ,  Yasuhiro Oishi

IPC: G03G15/09 ,  G03G15/08

CPC classification number: G03G15/0808 ,  G03G15/0818 ,  G03G15/09

Abstract: A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes a resin coat layer that is formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being made of a resin material and having electric conductivity. An AC impedance Z obtained from an application of an AC voltage at a frequency in a range from 0.05 Hz to 100 Hz is equal to or higher than 100Ω, and a phase angle θ satisfies a relationship of 0 rad

Abstract translation: 显影辊包括辊状主体，其被设置为面对而不接触图像载体的外周表面。 辊主体包括树脂涂层，该树脂涂层形成在由包括铝的金属制成的基体的外周面上，该树脂涂层由树脂材料制成并具有导电性。 从0.05Hz至100Hz的范围内的AC电压的施加获得的交流阻抗Z等于或高于100Ω，相位角＆ 当功率因数为cos＆Theta; = Za / Z时，满足0 rad <＆amp; tas; <0.1 rad的关系。

公开(公告)号：US09541856B2

公开(公告)日：2017-01-10

申请号：US14642062

申请日：2015-03-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shizuka Ikazaki ,  Akihiro Watanabe ,  Tamotsu Shimizu

IPC: G03G15/06 ,  G03G15/08

CPC classification number: G03G15/065 ,  G03G15/0803

Abstract: An image forming apparatus includes an image carrier, a developer carrier, a bias applying section, a leakage detecting section, and a bias controlling section. The developer carrier carries developer in the form of a layer of magnetized filaments to supply toner to the image carrier. The bias applying section applies to the developer carrier a development bias including a direct current voltage VmagDC and an alternating current voltage VmagAC superposed on each other. The leakage detecting section causes a discharge between the image carrier and the developer carrier and detects a leakage voltage when the discharge occurs. The leakage detecting section performs the leakage voltage detection in a blank region of the image carrier bearing no electrostatic latent image. The bias controlling section determines an alternating current voltage VmagAC according to a detected leakage voltage, and a frequency of the alternating current voltage VmagAC according to the voltage VmagAC.

Abstract translation: 图像形成装置包括图像载体，显影剂载体，偏压施加部，泄漏检测部和偏置控制部。 显影剂载体以一层磁化细丝的形式携带显影剂，以向图像载体提供调色剂。 偏置施加部分对显影剂载体施加包括彼此重叠的直流电压VmagDC和交流电压VmagAC的显影偏压。 泄漏检测部分在图像载体和显影剂载体之间引起放电，并且在放电发生时检测泄漏电压。 泄漏检测部在不具有静电潜像的图像载体的空白区域中执行泄漏电压检测。 偏置控制部根据检测到的泄漏电压和交流电压VmagAC的频率根据电压VmagAC来决定交流电压VmagAC。

公开(公告)号：US09477173B2

公开(公告)日：2016-10-25

申请号：US15002306

申请日：2016-01-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro Watanabe

IPC: G03G15/00 ,  G03G15/08

CPC classification number: G03G15/0812 ,  G03G15/0865

Abstract: A developing device includes a developer carrying body, a layer thickness limiting portion, and a rotation control portion. The layer thickness limiting portion includes a base body and a flexible member. The base body protrudes toward a part at a third position between a first position and a second position on the outer circumferential surface of the developer carrying body. The flexible member is a sheet-like member having flexibility, and is attached to the base body such that the flexible member covers, via a gap, a range of the base body from a front end surface facing the developer carrying body to an upper surface, and a bent portion covering a boundary portion between the front end surface and the upper surface of the base body is closer to the outer circumferential surface of the developer carrying body than the other part is.

Abstract translation: 显影装置包括显影剂承载体，层厚度限制部分和旋转控制部分。 层厚限制部分包括基体和柔性构件。 基体在显影剂承载体的外周面上的第一位置和第二位置之间的第三位置朝向部分突出。 柔性构件是具有柔性的片状构件，并且附接到基体，使得柔性构件经由间隙从面向显影剂承载体的前端表面覆盖基体的范围到上表面 并且覆盖基体的前端面和上表面之间的边界部分的弯曲部分比另一部分更靠近显影剂承载体的外周表面。