公开(公告)号：US20230131628A1

公开(公告)日：2023-04-27

申请号：US17968435

申请日：2022-10-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro WATANABE ,  Eiji GYOTOKU

IPC: G03G15/08 ,  G03G15/00

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 developer conveyed therein through an entry port connected to a main-body-side conveyance path by causing the toner or developer to fall vertically. The horizontal conveyance portion is connected to a lower end of the vertical conveyance portion and conveys the toner or developer in a horizontal direction by using the conveyance member. the loosening member is arranged at a first position below a connection portion between the main-body-side conveyance path and the entry port and at a second position protruding upward beyond the connection portion. A toner loosening mode is executable in which the toner or developer is fed into the vertical conveyance portion so as to cause the loosening member to reciprocate at the second position.

公开(公告)号：US20140233973A1

公开(公告)日：2014-08-21

申请号：US14181370

申请日：2014-02-14

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Eiji GYOTOKU ,  Jun NAKAI ,  Masahito ISHINO

IPC: G03G15/00

CPC classification number: G03G21/0064 ,  G03G21/0094 ,  G03G21/20

Abstract: An image forming apparatus includes a heating element, an interior temperature/humidity detection section, and a controller. The heating element is conducted during connection of the image forming apparatus to an external power source to heat an image bearing member. The interior temperature/humidity detection section detects temperature and humidity in the interior of the image forming apparatus. The controller performs a refresh operation when a relative humidity calculated on the basis of the temperature and humidity detected by the interior temperature/humidity detection section immediately after the image forming apparatus is connected to the external power source is higher than the preset value. The refresh operation is an operation for supply of developer from a development device to the image bearing member and for polish of the surface of the image bearing member with the use of a polishing member.

Abstract translation: 图像形成装置包括加热元件，内部温度/湿度检测部和控制器。 在图像形成装置连接到外部电源以加热图像承载部件时，加热元件被传导。 内部温度/湿度检测部分检测图像形成装置内部的温度和湿度。 当在图像形成装置刚刚连接到外部电源之后，基于由内部温度/湿度检测部检测到的温度和湿度计算的相对湿度高于预设值时，控制器执行刷新操作。 刷新操作是将显影剂从显影装置供应到图像承载部件并且通过使用抛光部件对图像承载部件的表面进行抛光的操作。

公开(公告)号：US20230022432A1

公开(公告)日：2023-01-26

申请号：US17863314

申请日：2022-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Eiji GYOTOKU ,  Akihiro WATANABE

IPC: G03G15/08

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：US20150078787A1

公开(公告)日：2015-03-19

申请号：US14459199

申请日：2014-08-13

Applicant: KYOCERA Document Solutions Inc.

Inventor： Eiji GYOTOKU

IPC: G03G15/08

CPC classification number: G03G15/0849 ,  G03G15/0856 ,  G03G15/0889 ,  G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes a developing container, a first agitating feeding member, a second agitating feeding member, a first developer delivery portion, a second developer delivery portion, and a toner sensor. The developing container includes a first transport path and a second transport path. The first agitating feeding member and the second agitating feeding member agitate and feed developer. The first developer delivery portion delivers the developer from the first transport path to the second transport path. The second developer delivery portion delivers the developer from the second transport path to the first transport path. The toner sensor is disposed at a part of the first transport path near the first developer delivery portion. A ceiling height of a part of the first transport path facing the first developer delivery portion is larger than a ceiling height of other part of the first transport path.

Abstract translation: 显影装置包括显影容器，第一搅拌进给构件，第二搅拌进给构件，第一显影剂输送部分，第二显影剂输送部分和调色剂传感器。 显影容器包括第一输送路径和第二输送路径。 第一搅拌进料构件和第二搅拌进料构件搅拌并进料显影剂。 第一显影剂传送部分将显影剂从第一传送路径传送到第二传送路径。 第二显影剂传送部分将显影剂从第二传送路径传送到第一传送路径。 调色剂传感器设置在靠近第一显影剂传送部分的第一传送路径的一部分。 面向第一显影剂输送部分的第一输送路径的一部分的天花板高度大于第一输送路径的其他部分的天花板高度。

公开(公告)号：US20160018760A1

公开(公告)日：2016-01-21

申请号：US14733818

申请日：2015-06-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Eiji GYOTOKU

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0822 ,  G03G15/0877 ,  G03G15/0893 ,  G03G2215/083

Abstract: A developing device includes first and second stirring/transporting members, a developer feeding member, and a developer container that accommodates those components. The first and second stirring/transporting members stir and transport developer. The developer feeding member feeds developer to the first stirring/transporting member. In the developer container, a feeding port through which developer is fed from the developer feeding member to the first stirring/transporting member is formed. The developer feeding member includes a rotary shaft, a first transport blade which stirs and transports developer, a blocking portion which protrudes substantially perpendicularly to the rotary shaft and blocks the developer transported by the first transport blade in a first direction, and a paddle which feeds the developer from a developer supply passage to a first transport chamber.

Abstract translation: 显影装置包括第一和第二搅拌/输送构件，显影剂供给构件和容纳这些构件的显影剂容器。 第一和第二搅拌/输送构件搅拌并运输显影剂。 显影剂供给构件将显影剂供给到第一搅拌/输送构件。 在显影剂容器中形成有从显影剂供给部件向第一搅拌传送部件供给显影剂的供给口。 显影剂供给构件包括旋转轴，搅拌和输送显影剂的第一输送叶片，大致垂直于旋转轴突出的阻挡部分，并且阻挡由第一输送叶片沿第一方向输送的显影剂;以及桨叶， 来自显影剂供应通道的显影剂到第一输送室。

公开(公告)号：US20140233978A1

公开(公告)日：2014-08-21

申请号：US14179234

申请日：2014-02-12

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Jun NAKAI ,  Eiji GYOTOKU ,  Masahito ISHINO

IPC: G03G15/00

CPC classification number: G03G15/50 ,  G03G15/657 ,  G03G21/06

Abstract: An image forming apparatus includes an image bearing member, a charging unit, a laser scanning unit, a developing unit, a transfer member, a recording medium conveyance path, a cleaning unit, and a heating element. The recording medium conveyance path includes a resin member that forms a conveyance surface. The resin member has a concave portion at a location closer to the transfer member than to the image bearing member. The heating element for heating the image bearing member is accommodated in the concave portion. The heating element is disposed downstream from the contact point between the image bearing member and the transfer member in the conveyance direction in which a recording medium is conveyed through the recording medium conveyance path. The developing unit is located upstream from the contact point between the image bearing member and the transfer member in the conveyance direction of the recording medium.

Abstract translation: 图像形成装置包括图像承载部件，充电单元，激光扫描单元，显影单元，转印部件，记录介质输送路径，清洁单元和加热元件。 记录介质输送路径包括形成输送面的树脂部件。 树脂构件在比图像承载构件更靠近转印构件的位置处具有凹部。 用于加热图像承载部件的加热元件容纳在凹部中。 加热元件设置在图像承载部件和转印部件之间的接触点的下游，在输送方向上记录介质通过记录介质输送路径传送。 显影单元在记录介质的输送方向上位于图像承载部件和转印部件之间的接触点的上游。

公开(公告)号：US20140086607A1

公开(公告)日：2014-03-27

申请号：US14027363

申请日：2013-09-16

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Eiji GYOTOKU

IPC: G03G15/09

CPC classification number: G03G15/065

Abstract: A developing device of the present disclosure has a developer bearing member, a toner bearing member, a bias controller. With respect to a duty ratio of the alternating current bias of a polarity with which the toner is moved from the developer bearing member to the toner bearing member, a second duty ratio that is a duty ratio of the collection bias is set to be smaller than a first duty ratio that is a duty ratio of the development bias. When a transition is made from the development operation to the collection operation, in a state where the developer bearing member and the toner bearing member are being driven to rotate, the bias controller performs control so that the bias applier applies the alternating current bias having a third duty ratio that is smaller than the first duty ratio and larger than the second duty ratio.

Abstract translation: 本公开的显影装置具有显影剂承载部件，调色剂承载部件，偏置控制器。 关于调色剂从显影剂承载部件移动到调色剂承载部件的极性的交流偏压的占空比，作为收集偏压的占空比的第二占空比被设定为小于 作为显影偏压的占空比的第一占空比。 当从显影操作到收集操作进行转换时，在显影剂承载部件和调色剂承载部件被驱动旋转的状态下，偏置控制器执行控制，使得偏置施加器施加具有 第三占空比小于第一占空比并且大于第二占空比。

公开(公告)号：US20230129577A1

公开(公告)日：2023-04-27

申请号：US17968400

申请日：2022-10-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro WATANABE ,  Eiji GYOTOKU

IPC: G03G15/08

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：US20230024111A1

公开(公告)日：2023-01-26

申请号：US17863326

申请日：2022-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Eiji GYOTOKU ,  Akihiro WATANABE

IPC: G03G15/08

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 first and second conveying members are equal to each other in outer diameter and shaft diameter, the outer diameter being 1.3 times the shaft diameter or more but 1.6 times the shaft diameter or less. Where L represents an axial length of the first conveying member, K represents a distance of a center position of the sensing surface of the toner concentration sensor from a downstream end of a first conveying chamber of the development container in the first direction, P represents a pitch of the conveying blade of the first conveying member, and R represents a rotational speed of the first conveying member, formula (1) is satisfied: 30000

公开(公告)号：US20140233977A1

公开(公告)日：2014-08-21

申请号：US14179156

申请日：2014-02-12

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Eiji GYOTOKU ,  Masahito ISHINO ,  Jun NAKAI

IPC: G03G15/00

CPC classification number: G03G21/06 ,  G03G21/20

Abstract: An image forming apparatus includes an image bearing member, a developing unit, a cleaning unit, and a heating element. The heating element for heating the image bearing member includes: a substrate having a length corresponding to an entire region of the image bearing member in a longitudinal direction of the image bearing member; and a plurality of resistor chips mounted on the substrate. At least either resistance values or spacing intervals of the resistor chips vary in a longitudinal direction of the substrate to ensure that the surface temperature distribution of the image bearing member heated by the heating element is uniform.

Abstract translation: 图像形成装置包括图像承载部件，显影单元，清洁单元和加热元件。 用于加热图像承载部件的加热元件包括：在图像承载部件的纵向方向上具有对应于图像承载部件的整个区域的长度的基板; 以及安装在基板上的多个电阻芯片。 至少电阻片的电阻值或间隔间隔在衬底的纵向方向上变化，以确保由加热元件加热的图像承载构件的表面温度分布是均匀的。