公开(公告)号：US20240402624A1

公开(公告)日：2024-12-05

申请号：US18676173

申请日：2024-05-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuko IWASHITA ,  Yasuhiro OISHI

IPC: G03G5/14 ,  G03G21/00

Abstract: An image forming apparatus includes an image bearing member, a charger that charges the surface of the image bearing member to positive polarity, a light exposure device that exposes the charged surface of the image bearing member to light to form an electrostatic latent image on the surface of the image bearing member, a development device that develops the electrostatic latent image into a toner image, a transfer device that transfers the toner image from the image bearing member to a transfer target, a cleaning member that collects toner attached to the surface of the image bearing member by contacting the surface of the image bearing member, and a controller that controls voltage to be applied to the cleaning member. The controller causes a first voltage with negative polarity to be applied to the cleaning member in a printing mode.

公开(公告)号：US20170068177A1

公开(公告)日：2017-03-09

申请号：US15248540

申请日：2016-08-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomofumi SHIMIZU ,  Junichiro OTSUBO ,  Yasuhiro OISHI

IPC: G03G15/00

CPC classification number: G03G5/0607 ,  G03G5/04 ,  G03G5/0609 ,  G03G5/0631 ,  G03G5/0696 ,  G03G5/102 ,  G03G5/144 ,  G03G15/75 ,  G03G2215/0129 ,  G03G2215/0148

Abstract: A single-layer electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The conductive substrate contains aluminum or an aluminum alloy. A surface of the conductive substrate has an aluminum oxide film or an aluminum alloy oxide film. The photosensitive layer is disposed directly on the conductive substrate. The photosensitive layer contains an electron transport material. The electron transport material has a reduction potential of at least −0.88 V and no greater than −0.66 V versus a reference electrode (Ag/Ag+). The single-layer electrophotographic photosensitive member has a leakage onset voltage of at least 5.0 kV in a high temperature and humidity environment at a temperature of 30° C. and a relative humidity of 80%. The leakage onset voltage is a voltage applied to the single-layer electrophotographic photosensitive member at which current leakage starts.

Abstract translation: 单层电子照相感光构件包括导电基底和感光层。 导电性基材含有铝或铝合金。 导电性基板的表面具有氧化铝膜或铝合金氧化膜。 感光层直接设置在导电性基板上。 感光层含有电子传输材料。 相对于参考电极（Ag / Ag +），电子传输材料具有至少-0.88V且不大于-0.66V的还原电位。 单层电子照相感光构件在温度30℃，相对湿度80％的高温高湿环境下的起爆电压为5.0kV以上。 泄漏开始电压是施加到电流泄漏开始的单层电子照相感光构件的电压。

公开(公告)号：US20240353772A1

公开(公告)日：2024-10-24

申请号：US18638333

申请日：2024-04-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuko IWASHITA ,  Jun AZUMA ,  Keiji MARUO ,  Kazuaki EZURE ,  Kazutaka SUGIMOTO ,  Yasuhiro OISHI ,  Kazunari HAMASAKI

IPC: G03G5/14 ,  G03G5/10

CPC classification number: G03G5/144 ,  G03G5/102

Abstract: An electrophotographic photosensitive member includes a conductive substrate, an intermediate layer provided on the conductive substrate, and a photosensitive layer provided on the intermediate layer. The intermediate layer contains a specific polyamide resin and specific inorganic particles. The specific inorganic particles each include a metal oxide particle and a surface treatment layer covering at least a part of the surface of the metal oxide particle. The surface treatment layers contain at least one of aluminum oxide and silica. The specific polyamide resin includes a first repeating unit derived from an aliphatic dicarboxylic acid with a carbon number of at least 8 and no greater than 20 and a second repeating unit derived from a diamine compound with a cycloalkane structure. The total percentage content of the first repeating unit and the second repeating unit to all repeating units included in the specific polyamide resin is at least 80% by mol.

公开(公告)号：US20240353771A1

公开(公告)日：2024-10-24

申请号：US18638286

申请日：2024-04-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuko IWASHITA ,  Jun AZUMA ,  Keiji MARUO ,  Kazuaki EZURE ,  Kazutaka SUGIMOTO ,  Yasuhiro OISHI ,  Kazunari HAMASAKI

IPC: G03G5/14 ,  G03G7/00 ,  G03G15/00

CPC classification number: G03G5/142 ,  G03G7/0053 ,  G03G15/75

Abstract: An electrophotographic photosensitive member includes a conductive substrate, an intermediate layer provided on the conductive substrate, and a photosensitive layer provided on the intermediate layer. The intermediate layer contains a specific polyamide resin and specific inorganic particles. The specific inorganic particles each include a metal oxide particle and a surface treatment layer covering at least a part of the surface of the metal oxide particle. The surface treatment layers contain a component derived from an organic siloxane compound. The specific polyamide resin includes a first repeating unit derived from an aliphatic dicarboxylic acid with a carbon number of at least 8 and no greater than 20 and a second repeating unit derived from a diamine compound with a cycloalkane structure. The total percentage content of the first repeating unit and the second repeating unit to all repeating units included in the specific polyamide resin is at least 80% by mol.

公开(公告)号：US20240402625A1

公开(公告)日：2024-12-05

申请号：US18676137

申请日：2024-05-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuko IWASHITA ,  Yasuhiro OISHI

IPC: G03G5/147 ,  G03G5/06 ,  G03G5/10 ,  G03G15/16 ,  G03G21/18

Abstract: An electrophotographic photosensitive member includes a conductive substrate, an intermediate layer provided on the conductive substrate, and a photosensitive layer provided on the intermediate layer. The intermediate layer contains a specific polyamide resin and specific inorganic particles. The specific inorganic particles include metal oxide particles. The specific polyamide resin includes a first repeating unit derived from an aliphatic dicarboxylic acid and a second repeating unit derived from a diamine compound. The total percentage content of the first repeating unit and the second repeating unit is at least 80% by mol to all repeating units included in the specific polyamide resin. The photosensitive layer contains a charge generating material, an electron transport material, a binder resin, a hole transport material, and an n-type pigment.

公开(公告)号：US20240353792A1

公开(公告)日：2024-10-24

申请号：US18636961

申请日：2024-04-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuko IWASHITA ,  Jun AZUMA ,  Keiji MARUO ,  Kazuaki EZURE ,  Yuichi YOSHIDA ,  Kazutaka SUGIMOTO ,  Yasuhiro OISHI ,  Kazunari HAMASAKI

IPC: G03G21/18 ,  G03G5/14 ,  G03G7/00 ,  G03G15/095

CPC classification number: G03G21/1814 ,  G03G5/142 ,  G03G7/0053 ,  G03G15/095 ,  G03G2215/00957

Abstract: An electrophotographic photosensitive member includes a conductive substrate, an intermediate layer provided on the conductive substrate, and a photosensitive layer provided on the intermediate layer. The intermediate layer contains a specific polyamide resin and specific inorganic particles. The specific inorganic particles each include a metal oxide particle and a surface treatment layer covering at least a part of the surface of the metal oxide particle. The surface treatment layers contain a component derived from an organic siloxane compound and at least one of aluminum oxide and silica. The specific polyamide resin includes a first repeating unit derived from an aliphatic dicarboxylic acid with a carbon number of at least 8 and no greater than 20 and a second repeating unit derived from a diamine compound with a cycloalkane structure.

公开(公告)号：US20150293470A1

公开(公告)日：2015-10-15

申请号：US14671344

申请日：2015-03-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu SHIMIZU ,  Akihiro WATANABE ,  Chikara ISHIHARA ,  Yasuhiro TAUCHI ,  Masashi FUJISHIMA ,  Yu SASAKI ,  Hiroaki SAKAI ,  Yasuhiro OISHI ,  Yukimasa WATANABE

IPC: G03G15/08

CPC classification number: G03G15/0808

Abstract: A developing device includes a housing, a development roller, and a roller gear. The roller gear is disposed at one axial end of the development roller and transmits a rotational drive force to the development roller. The development roller includes a sleeve and a coating layer. The coating layer is formed by dipping the sleeve in a dipping bath with the sleeve directed axially vertically. The development roller is mounted to the housing such that a lower axial end of the development roller at the time of the dipping is an opposite axial end to the one axial end at which the roller gear is disposed.

Abstract translation: 显影装置包括壳体，显影辊和辊齿轮。 辊齿轮设置在显影辊的一个轴向端部，并将旋转驱动力传递到显影辊。 显影辊包括套筒和涂层。 通过将套筒浸入浸渍浴中而使套筒轴向垂直地形成涂层。 显影辊安装到壳体上，使得在浸渍时显影辊的下轴向端与设置辊齿轮的一个轴向端相反的轴向端。