公开(公告)号：US07068966B2

公开(公告)日：2006-06-27

申请号：US10775082

申请日：2004-02-11

申请人： Seiichi Shinohara ,  Hiroshi Sato ,  Syuhei Kawasaki

发明人： Seiichi Shinohara ,  Hiroshi Sato ,  Syuhei Kawasaki

IPC分类号： G03G15/01

CPC分类号： G03G15/0173 ,  G03G15/0121 ,  G03G2215/0177

摘要： An image forming apparatus includes an image bearing member; a plurality of developing devices for developing electrostatic images formed on the image bearing member with developers, the developing devices including respective developer carrying members for carrying respective developers; moving devices for moving a selected one of the developing devices to an operative position, wherein each of the developer carrying members is movable selectively to be in contact with or spaced from the image bearing member at the operative position. The apparatus is operable in a first image formation mode in which an image is formed using the plurality of developing devices and a second image formation mode in which an image is formed using one of the plurality of developing devices. The developer carrying member which is at the operative position in the first image formation mode is capable of being spaced from the image bearing member by a first distance during non-developing-operation. The developer carrying member which is at the operative position in the second image formation mode is capable of being spaced from the image bearing member by a second distance during non-developing-operation, wherein the second distance is smaller than the first distance.

摘要翻译： 图像形成装置包括：图像承载部件; 多个显影装置，用于用显影剂在图像承载部件上形成静电图像，显影装置包括用于承载各显影剂的相应的显影剂承载部件; 用于将所选择的一个显影装置移动到操作位置的移动装置，其中每个显影剂承载构件可选择性地移动以在操作位置与图像承载构件接触或间隔开。 该装置在第一图像形成模式中可操作，其中使用多个显影装置形成图像，以及第二图像形成模式，其中使用多个显影装置之一形成图像。 处于第一图像形成模式的操作位置的显影剂承载构件能够在非显影操作期间与图像承载构件隔开第一距离。 处于第二图像形成模式的操作位置的显影剂承载构件能够在非显影操作期间与图像承载构件隔开第二距离，其中第二距离小于第一距离。

公开(公告)号：US07158740B2

公开(公告)日：2007-01-02

申请号：US11325307

申请日：2006-01-05

申请人： Seiichi Shinohara ,  Hiroshi Sato ,  Syuhei Kawasaki

发明人： Seiichi Shinohara ,  Hiroshi Sato ,  Syuhei Kawasaki

IPC分类号： G03G15/01

CPC分类号： G03G15/0173 ,  G03G15/0121 ,  G03G2215/0177

摘要： An image forming apparatus includes an image bearing member; a plurality of developing devices for developing electrostatic images formed on the image bearing member with developers, the developing devices including respective developer carrying members for carrying respective developers; moving means for moving a selected one of the developing devices to an operative position, wherein each of the developer carrying members is movable selectively to be in contact with or spaced from the image bearing member at the operative position; wherein the apparatus is operable in a first image formation mode in which an image is formed using the plurality of developing devices and a second image formation mode in which an image is formed using one of the plurality of developing devices, and wherein the developer carrying member which is at the operative position in the first image formation mode is capable of being spaced from the image bearing member by a first distance during non-developing-operation, and the developer carrying member which is at the operative position in the second image formation mode is capable of being spaced from the image bearing member by a second distance during non-developing-operation, and wherein the second distance is smaller than the first distance.

摘要翻译： 图像形成装置包括：图像承载部件; 多个显影装置，用于用显影剂在图像承载部件上形成静电图像，显影装置包括用于承载各显影剂的相应的显影剂承载部件; 用于将所选择的一个显影装置移动到操作位置的移动装置，其中每个显影剂承载构件可选择性地移动以在操作位置与图像承载构件接触或间隔开; 其中所述装置可以在其中使用所述多个显影装置形成图像的第一图像形成模式和使用所述多个显影装置中的一个形成图像的第二图像形成模式进行操作，并且其中所述显影剂承载构件 处于第一图像形成模式中的操作位置的第一图像形成模式能够在非显影操作期间与图像承载部件间隔第一距离，并且处于第二图像形成模式中的操作位置的显影剂承载部件 能够在非显影操作期间与图像承载部件隔开第二距离，并且其中第二距离小于第一距离。

公开(公告)号：US20060120761A1

公开(公告)日：2006-06-08

申请号：US11325307

申请日：2006-01-05

申请人： Seiichi Shinohara ,  Hiroshi Sato ,  Syuhei Kawasaki

发明人： Seiichi Shinohara ,  Hiroshi Sato ,  Syuhei Kawasaki

IPC分类号： G03G15/01

CPC分类号： G03G15/0173 ,  G03G15/0121 ,  G03G2215/0177

摘要： An image forming apparatus includes an image bearing member; a plurality of developing devices for developing electrostatic images formed on the image bearing member with developers, the developing devices including respective developer carrying members for carrying respective developers; moving means for moving a selected one of the developing devices to an operative position, wherein each of the developer carrying members is movable selectively to be in contact with or spaced from the image bearing member at the operative position; wherein the apparatus is operable in a first image formation mode in which an image is formed using the plurality of developing devices and a second image formation mode in which an image is formed using one of the plurality of developing devices, and wherein the developer carrying member which is at the operative position in the first image formation mode is capable of being spaced from the image bearing member by a first distance during non-developing-operation, and the developer carrying member which is at the operative position in the second image formation mode is capable of being spaced from the image bearing member by a second distance during non-developing-operation, and wherein the second distance is smaller than the first distance.

摘要翻译： 图像形成装置包括：图像承载部件; 多个显影装置，用于用显影剂在图像承载部件上形成静电图像，显影装置包括用于承载各显影剂的相应的显影剂承载部件; 用于将所选择的一个显影装置移动到操作位置的移动装置，其中每个显影剂承载构件可选择性地移动以在操作位置与图像承载构件接触或间隔开; 其中所述装置可以在其中使用所述多个显影装置形成图像的第一图像形成模式和使用所述多个显影装置中的一个形成图像的第二图像形成模式进行操作，并且其中所述显影剂承载构件 处于第一图像形成模式中的操作位置的第一图像形成模式能够在非显影操作期间与图像承载部件间隔第一距离，并且处于第二图像形成模式中的操作位置的显影剂承载部件 能够在非显影操作期间与图像承载部件隔开第二距离，并且其中第二距离小于第一距离。

公开(公告)号：US07155137B2

公开(公告)日：2006-12-26

申请号：US11282719

申请日：2005-11-21

申请人： Kojiro Yasui ,  Hironobu Isobe ,  Hiroshi Sato ,  Seiichi Shinohara ,  Yasufumi Yoshino ,  Syuhei Kawasaki

发明人： Kojiro Yasui ,  Hironobu Isobe ,  Hiroshi Sato ,  Seiichi Shinohara ,  Yasufumi Yoshino ,  Syuhei Kawasaki

IPC分类号： G03G15/06 ,  G03G15/08

CPC分类号： G03G15/0812

摘要： A developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a developing roller, for developing an electrostatic latent image formed on an electrophotographic photosensitive member, having an elastic roller portion and a shaft portion supporting the elastic roller portion, a developer regulating member; a protecting member including a contact portion provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member; and a supporting portion for supporting the contact portion and provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member. The contact portion has a hardness which is not less than a predetermined value and not more than a hardness of the elastic roller portion.

摘要翻译： 显影盒可拆卸地安装到电子照相成像设备的主组件上。 墨盒包括显影辊，用于显影形成在电子照相感光构件上的静电潜像，具有弹性辊部分和支撑弹性辊部分的轴部分，显影剂调节构件; 保护构件，其包括当所述保护构件可拆卸地安装在所述显影辊和所述显影剂调节构件之间时设置成与所述弹性辊部分接触的接触部分; 以及用于支撑所述接触部分并且当所述保护构件可拆卸地安装在所述显影辊和所述显影剂调节构件之间时与所述弹性辊部分接触的支撑部分。 接触部分具有不小于预定值且不大于弹性辊部分的硬度的硬度。

公开(公告)号：US20060078358A1

公开(公告)日：2006-04-13

申请号：US11282719

申请日：2005-11-21

申请人： Kojiro Yasui ,  Hironobu Isobe ,  Hiroshi Sato ,  Seiichi Shinohara ,  Yasufumi Yoshino ,  Syuhei Kawasaki

发明人： Kojiro Yasui ,  Hironobu Isobe ,  Hiroshi Sato ,  Seiichi Shinohara ,  Yasufumi Yoshino ,  Syuhei Kawasaki

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A developing cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the developing cartridge includes a developing roller, for developing an electrostatic latent image formed on an electrophotographic photosensitive member, having an elastic roller portion and a shaft portion supporting the elastic roller portion, a developer regulating member contactable to the elastic roller portion to regulate an amount of the developer deposited on the elastic roller portion; a protecting member including a contact portion provided at a side for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member; and a supporting portion for supporting the contact portion, the supporting portion being provided at a side for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member, wherein the contact portion has a hardness which is not less than a predetermined value and not more than a hardness of the elastic roller portion.

摘要翻译： 一种可拆卸地安装到电子照相成像设备的主组件的显影盒，显影盒包括显影辊，用于显影形成在电子照相感光构件上的静电潜像，具有弹性辊部分和支撑弹性辊的轴部分 部分，可与弹性辊部分接触的显影剂调节部件，以调节沉积在弹性辊部分上的显影剂的量; 保护构件，其包括当保护构件可拆卸地安装在显影辊和显影剂调节构件之间时设置在与弹性辊部分接触的一侧的接触部分; 以及用于支撑接触部分的支撑部分，当保护构件可拆卸地安装在显影辊和显影剂调节构件之间时，支撑部分设置在与弹性辊部分接触的一侧，其中接触部分具有硬度 不小于预定值并且不大于弹性辊部分的硬度。

公开(公告)号：US06978100B2

公开(公告)日：2005-12-20

申请号：US10668281

申请日：2003-09-24

申请人： Kojiro Yasui ,  Hironobu Isobe ,  Hiroshi Sato ,  Seiichi Shinohara ,  Yasufumi Yoshino ,  Syuhei Kawasaki

发明人： Kojiro Yasui ,  Hironobu Isobe ,  Hiroshi Sato ,  Seiichi Shinohara ,  Yasufumi Yoshino ,  Syuhei Kawasaki

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0812

摘要： A developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a developing roller, for developing an electrostatic latent image formed on an electrophotographic photosensitive member, having an elastic roller portion and a shaft portion supporting the elastic roller portion, a developer regulating member; a protecting member including a contact portion provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member; and a supporting portion for supporting the contact portion and provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member. The contact portion has a hardness which is not less than a predetermined value and not more than a hardness of the elastic roller portion.

摘要翻译： 显影盒可拆卸地安装到电子照相成像设备的主组件上。 墨盒包括显影辊，用于显影形成在电子照相感光构件上的静电潜像，具有弹性辊部分和支撑弹性辊部分的轴部分，显影剂调节构件; 保护构件，其包括当所述保护构件可拆卸地安装在所述显影辊和所述显影剂调节构件之间时设置成与所述弹性辊部分接触的接触部分; 以及用于支撑所述接触部分并且当所述保护构件可拆卸地安装在所述显影辊和所述显影剂调节构件之间时与所述弹性辊部分接触的支撑部分。 接触部分具有不小于预定值且不大于弹性辊部分的硬度的硬度。

公开(公告)号：US06317574B1

公开(公告)日：2001-11-13

申请号：US09510341

申请日：2000-02-22

申请人： Seiichi Shinohara ,  Junichi Kato ,  Satoru Inami ,  Atsutoshi Ando ,  Yusuke Nakazono

发明人： Seiichi Shinohara ,  Junichi Kato ,  Satoru Inami ,  Atsutoshi Ando ,  Yusuke Nakazono

IPC分类号： G03G1502

CPC分类号： G03G15/0233

摘要： A charging member is disposed in contact with an electrophotographic photosensitive member and charges the surface of the electrophotographic photosensitive member electrostatically upon application of a voltage. The charging member has a conductive support, a base layer and a surface layer which are formed on the conductive support. The surface layer contains fluorine resin particles as a filler and a fluorine resin as a binder resin.

摘要翻译： 充电构件设置成与电子照相感光构件接触，并且在施加电压时静电地对静电感光构件的表面充电。 充电构件具有形成在导电支撑件上的导电支撑件，基底层和表面层。 表面层含有作为填料的氟树脂颗粒和作为粘合剂树脂的氟树脂。

公开(公告)号：US06173144B2

公开(公告)日：2001-01-09

申请号：US09390647

申请日：1999-09-07

申请人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono ,  Seiichi Shinohara

发明人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono ,  Seiichi Shinohara

IPC分类号： G03G1500

CPC分类号： G03G13/025

摘要： An image forming apparatus includes an image bearing member, a charging unit for charging the image bearing member, an image forming unit for forming an electrostatic image on the image bearing member charged by the charging unit, a developing device for developing the electrostatic image on the image bearing member and for supplying to the image bearing member charging performance enhancing particles which have a polarity opposite from that of the toner, wherein the developing device has a developer carrying member, opposed to the image bearing member, for carrying the toner and charging performance enhancing particles and also which forms an alternating electric field between the developer carrying member and the image bearing member to supply the toner and the charging performance enhancing particles to the image bearing member. A time duration for supplying the charging performance enhancing particles is longer than a time duration for supplying the toner, in an on period of the alternating electric field.

摘要翻译： 图像形成装置包括图像承载部件，用于对图像承载部件充电的充电单元，用于在由充电单元充电的图像承载部件上形成静电图像的图像形成单元，用于在静电图像上显影静电图像的显影装置 图像承载部件，并且用于向图像承载部件提供具有与调色剂极性相反极性的充电性能增强颗粒，其中显影装置具有与图像承载部件相对的用于承载调色剂和充电性能的显影剂承载部件 增强颗粒，并且还在显影剂承载构件和图像承载构件之间形成交替电场，以将调色剂和充电性能增强颗粒供应给图像承载构件。 用于提供充电性能增强颗粒的持续时间比在交变电场的接通时段中供给调色剂的持续时间长。

公开(公告)号：US09098062B2

公开(公告)日：2015-08-04

申请号：US13389161

申请日：2011-01-07

申请人： Seiichi Shinohara

发明人： Seiichi Shinohara

IPC分类号： G03G15/06 ,  G03G21/18 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G21/1814 ,  G03G15/0812 ,  G03G21/0011 ,  G03G2215/0861

摘要： A process cartridge for an image forming apparatus includes a developing roller, including a shaft member and an elastic layer therearound, for developing operation while contacting an image bearing member with a peripheral speed difference; a toner supplying roller contactable to the developing roller; a regulating member, contactable to the developing roller, wherein a length of the regulating member is shorter than that of the developing roller; and a cleaning blade, contactable to the image bearing member. The developing roller has a region capable of carrying the toner regulated by the regulating member and a region, outside thereof, both of which regions are contactable to the image bearing member, wherein the cleaning blade extends over the regions when the cleaning blade is contacted to the image bearing member. The shaft member has an outer diameter in a region outside a first contact region between the regulating member and the developing roller, and an outer diameter in a second contact region between the toner supplying roller and the developing roller wherein the former outer diameter is smaller than the latter outer diameter.

摘要翻译： 用于图像形成装置的处理盒包括显影辊，包括轴构件和其周围的弹性层，用于在使图像承载构件与圆周速度差异接触的同时进行显影操作; 可与显影辊接触的调色剂供应辊; 调节构件，其与所述显影辊接触，其中所述调节构件的长度短于所述显影辊的长度; 以及可与图像承载部件接触的清洁刮板。 显影辊具有能够承载由调节构件调节的调色剂的区域和其外部的区域，两个区域可与图像承载构件接触，其中当清洁刮板接触时，清洁刮板延伸越过区域 图像承载部件。 轴构件在调节构件和显影辊之间的第一接触区域外侧的区域中具有外径，并且在调色剂供给辊和显影辊之间的第二接触区域中的外径，其中前外径小于 后者的外径。

公开(公告)号：US20120134710A1

公开(公告)日：2012-05-31

申请号：US13389161

申请日：2011-01-08

申请人： Seiichi Shinohara

发明人： Seiichi Shinohara

IPC分类号： G03G21/16

CPC分类号： G03G21/1814 ,  G03G15/0812 ,  G03G21/0011 ,  G03G2215/0861

摘要： A process cartridge for an image forming apparatus includes a developing roller, including a shaft member and an elastic layer therearound, for developing operation while contacting an image bearing member with a peripheral speed difference; a toner supplying roller contactable to the developing roller; a regulating member, contactable to the developing roller, wherein a length of the regulating member is shorter than that of the developing roller; and a cleaning blade, contactable to the image bearing member. The developing roller has a region capable of carrying the toner regulated by the regulating member and a region, outside thereof, both of which regions are contactable to the image bearing member, wherein the cleaning blade extends over the regions when the cleaning blade is contacted to the image bearing member. The shaft member has an outer diameter in a region outside a first contact region between the regulating member and the developing roller, and an outer diameter in a second contact region between the toner supplying roller and the developing roller wherein the former outer diameter is smaller than the latter outer diameter.

摘要翻译： 用于图像形成装置的处理盒包括显影辊，包括轴构件和其周围的弹性层，用于在使图像承载构件与圆周速度差异接触的同时进行显影操作; 可与显影辊接触的调色剂供应辊; 调节构件，其与所述显影辊接触，其中所述调节构件的长度短于所述显影辊的长度; 以及可与图像承载部件接触的清洁刮板。 显影辊具有能够承载由调节构件调节的调色剂的区域和其外部的区域，两个区域可与图像承载构件接触，其中当清洁刮板接触时，清洁刮板延伸越过区域 图像承载部件。 轴构件在调节构件和显影辊之间的第一接触区域外侧的区域中具有外径，并且在调色剂供给辊和显影辊之间的第二接触区域中的外径，其中前外径小于 后者的外径。