公开(公告)号：US20050214032A1

公开(公告)日：2005-09-29

申请号：US11090282

申请日：2005-03-28

申请人： Masato Koyanagi ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Kohei Matsuda ,  Shinichi Agata ,  Kentarou Kawata ,  Yuji Moriki

发明人： Masato Koyanagi ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Kohei Matsuda ,  Shinichi Agata ,  Kentarou Kawata ,  Yuji Moriki

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G15/08

CPC分类号： G03G15/08 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08795 ,  G03G9/08797 ,  G03G2215/0617

摘要： A developing apparatus including: a developer carrying member for carrying a developer, the developer carrying member being provided with an elastic layer and adapted to develop, with a developer, an electrostatic image formed on an image bearing member; wherein the developer includes a toner, the toner has a shape factor SF-1 of 100 or more but less than 130, the toner has a storage modulus G′ (140° C.) at 140° C. of 2.0×103 dN/m2 or more but less than 2.0×104 dN/m2, the toner has a temperature, when the toner has a viscosity of 1.0×103 Pa·s in a flow tester temperature elevation method, of 115° C. or more but less than 130° C., and, in a surface roughness of the developer carrying member, a center-line mean roughness Ra, a ten-point mean roughness Rz and a mean spacing Sm of irregularities satisfy following relationships (1): 0.06 ≤ Rz / Sm ≤ 0.4 0.8 ≤ Ra ≤ 2.0 ⁢   ⁢ ( μ ⁢   ⁢ m ) } ( 1 )

公开(公告)号：US07209690B2

公开(公告)日：2007-04-24

申请号：US11090282

申请日：2005-03-28

申请人： Masato Koyanagi ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Kohei Matsuda ,  Shinichi Agata ,  Kentarou Kawata ,  Yuji Moriki

发明人： Masato Koyanagi ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Kohei Matsuda ,  Shinichi Agata ,  Kentarou Kawata ,  Yuji Moriki

IPC分类号： G03G15/08

CPC分类号： G03G15/08 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08795 ,  G03G9/08797 ,  G03G2215/0617

摘要： A developing apparatus including: a developer carrying member for carrying a developer, the developer carrying member being provided with an elastic layer and adapted to develop, with a developer, an electrostatic image formed on an image bearing member; wherein the developer includes a toner, the toner has a shape factor SF-1 of 100 or more but less than 130, the toner has a storage modulus G′ (140° C.) at 140° C. of 2.0×103 dN/m2 or more but less than 2.0×104 dN/m2, the toner has a temperature, when the toner has a viscosity of 1.0×103 Pa·s in a flow tester temperature elevation method, of 115° C. or more but less than 130° C., and, in a surface roughness of the developer carrying member, a center-line mean roughness Ra, a ten-point mean roughness Rz and a mean spacing Sm of irregularities satisfy following relationships (1): 0.06 ≤ Rz / Sm ≤ 0.4 0.8 ≤ Ra ≤ 2.0 ⁢ ⁢ ( μ ⁢ ⁢ m ) } . ( 1 )

公开(公告)号：US20060188292A1

公开(公告)日：2006-08-24

申请号：US11276257

申请日：2006-02-21

申请人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Masato Koyanagi ,  Shinichi Agata ,  Shinya Yamamoto ,  Kentarou Kawata ,  Taku Watanabe

发明人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Masato Koyanagi ,  Shinichi Agata ,  Shinya Yamamoto ,  Kentarou Kawata ,  Taku Watanabe

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging device for electrically charging an image bearing member, includes a contact charging member contactable to the image bearing member to charge the image bearing member, the contact charging member being supplied only with a DC voltage; and a contact member contacted to the charging member, wherein the image bearing member is adapted to carry a toner image of toner which contains an externally added material comprising silica, wherein work functions of the charging member, the contact member and the silica satisfy, (the work function of the contact member)>(the work function of the silica)>(the work function of the charging member).

摘要翻译： 一种用于对图像承载部件进行充电的充电装置，包括可与图像承载部件接触以对图像承载部件充电的接触充电部件，接触充电部件仅被提供有直流电压; 以及与充电部件接触的接触部件，其中，所述图像承载部件适于承载包含含有二氧化硅的外部添加材料的调色剂的调色剂图像，所述充电部件，所述接触部件和所述二氧化硅的功函数满足（ 接触构件的功函数>（二氧化硅的功函数）>（充电构件的功能）。

公开(公告)号：US07593670B2

公开(公告)日：2009-09-22

申请号：US11276257

申请日：2006-02-21

申请人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Masato Koyanagi ,  Shinichi Agata ,  Shinya Yamamoto ,  Kentarou Kawata ,  Taku Watanabe

发明人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Masato Koyanagi ,  Shinichi Agata ,  Shinya Yamamoto ,  Kentarou Kawata ,  Taku Watanabe

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging device for electrically charging an image bearing member, includes a contact charging member contactable to the image bearing member to charge the image bearing member, the contact charging member being supplied only with a DC voltage; and a contact member contacted to the charging member, wherein the image bearing member is adapted to carry a toner image of toner which contains an externally added material comprising silica, wherein work functions of the charging member, the contact member and the silica satisfy, (the work function of the contact member)>(the work function of the silica)>(the work function of the charging member).

摘要翻译： 一种用于对图像承载部件进行充电的充电装置，包括可与图像承载部件接触以对图像承载部件充电的接触充电部件，接触充电部件仅被提供有直流电压; 以及与所述充电部件接触的接触部件，其中所述图像承载部件适于承载包含外部添加的包含二氧化硅的材料的调色剂的调色剂图像，其中所述充电部件，所述接触部件和所述二氧化硅的功函数满足， ？在线公式描述=“在线公式”end =“lead”？>（接触构件的功函数）>（二氧化硅的功函数）>（充电构件的功能）。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US07277659B2

公开(公告)日：2007-10-02

申请号：US11092874

申请日：2005-03-30

申请人： Tetsuya Kobayashi ,  Kohei Matsuda ,  Shinya Yamamoto ,  Masato Koyanagi ,  Shinichi Agata ,  Kentaro Kawata

发明人： Tetsuya Kobayashi ,  Kohei Matsuda ,  Shinya Yamamoto ,  Masato Koyanagi ,  Shinichi Agata ,  Kentaro Kawata

IPC分类号： G03G15/08

CPC分类号： G03G15/0882 ,  G03G15/0875 ,  G03G2215/00042 ,  G03G2215/0687

摘要： An electrophotographic image forming apparatus for forming an image on a recording material, to which a cartridge is detachably mountable. The cartridge includes portion for accommodating a developer for developing an electrostatic latent image formed on an electrophotographic photosensitive member, a roller for developing the electrostatic latent image with the developer, an opening for supplying the developer to the developing roller from the developer accommodating portion, and a sealing member for unsealably sealing the developer supply opening. The apparatus includes a detector for detecting that amount of the developer deposited on a member to be detected is less than a predetermined level, a retractor for producing an electric signal for retracting the sealing member from a sealing position where the sealing member seals the developer supply opening, when the detector detects that amount of the developer deposited on the member to be detected is less than the predetermined level.

摘要翻译： 一种用于在记录材料上形成图像的电子照相图像形成装置，盒可拆卸地安装在该记录材料上。 盒包括用于容纳用于显影形成在电子照相感光构件上的静电潜像的显影剂的部分，用显影剂显影静电潜像的辊，用于从显影剂容纳部分将显影剂供应到显影辊的开口，以及 用于非密封地密封显影剂供应开口的密封构件。 该装置包括用于检测沉积在待检测部件上的显影剂的量小于预定水平的检测器，用于产生用于从密封部件密封显影剂的密封位置缩回密封部件的电信号的牵开器 当检测器检测到沉积在要检测的构件上的显影剂的量小于预定水平时，供应开口。

公开(公告)号：US07711279B2

公开(公告)日：2010-05-04

申请号：US12124282

申请日：2008-05-21

申请人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

发明人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

IPC分类号： G03G15/02

CPC分类号： G03G15/0275

摘要： An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed; a charging member for being supplied with a charging voltage which is a DC voltage not having an AC voltage component and for contacting the bearing member to electrically charge a surface of the bearing member using an electric discharge; a transfer member for transferring onto a transfer material a toner image formed on the surface of the bearing member by developing the electrostatic latent image, at a transfer position; wherein the charging potential of the charging member is different between when the charging member provides a first region with a potential and when the charging member provides a second region with a potential, thus providing a predetermined potential difference between the first region and the second region, and wherein the transfer member is not supplied with a voltage when the second region is at the transfer position, where the first region is a region on the image bearing member which has been charged by the charging member and which is to be an image forming region, and the second region is a region of the image bearing member which is a non-image-forming region in an immediately previous rotation of the image bearing member and which corresponds to the first region on the bearing member.

摘要翻译： 图像形成装置包括：可旋转图像承载部件，其上形成有静电潜像; 充电构件，其被提供有充电电压，该充电电压是不具有交流电压分量的直流电压，并且用于使所述支承构件接触以使用放电对所述支承构件的表面进行充电; 转印部件，用于通过在转印位置显影静电潜像，将转印材料转印到形成在轴承部件表面上的调色剂图像; 其中充电构件在充电构件提供第一区域和电位之间充电构件的充电电位不同，并且当充电构件提供具有电位的第二区域时，从而在第一区域和第二区域之间提供预定的电位差， 并且其中当所述第二区域处于所述传送位置时，所述传送构件没有被提供电压，其中所述第一区域是所述图像承载构件上已被所述充电构件充电并且将成为图像形成区域的区域 并且第二区域是图像承载部件的区域，该图像承载部件是图像承载部件的紧接着的先前旋转中的非图像形成区域，并且对应于支承部件上的第一区域。

公开(公告)号：US07457554B2

公开(公告)日：2008-11-25

申请号：US11132343

申请日：2005-05-19

申请人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

发明人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

IPC分类号： G03G15/02

CPC分类号： G03G15/0275

摘要： An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed, a charging member, and a transfer member. A charging potential of the charging member is different between when the charging member provides a first region on the image bearing member with a potential and when the charging member provides a second region on the image bearing member with a potential, thus providing a predetermined potential difference between the first region and the second region. A third region on the image bearing member, with the transfer member being supplied with a voltage to provide a predetermined potential difference between a potential of the third region before being charged by the charging member and a potential of the third region after being charged by the charging member.

摘要翻译： 图像形成装置包括其上形成有静电潜像的可旋转图像承载部件，充电部件和转印部件。 充电构件在充电构件提供图像承载构件上的第一区域具有电位时充电构件的充电电位不同，并且当充电构件在图像承载构件上提供具有电位的第二区域时，从而提供预定的电位差 在第一区域和第二区域之间。 图像承载部件上的第三区域，其中转印部件被提供有电压，以在被充电部件充电之前提供第三区域的电位和在被充电部件充电之后的第三区域的电位之间的预定电位差 充电器。

公开(公告)号：US20080232854A1

公开(公告)日：2008-09-25

申请号：US12124282

申请日：2008-05-21

申请人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

发明人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

IPC分类号： G03G15/02

CPC分类号： G03G15/0275

摘要： An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed; a charging member for being supplied with a charging voltage which is a DC voltage not having an AC voltage component and for contacting the bearing member to electrically charge a surface of the bearing member using an electric discharge; a transfer member for transferring onto a transfer material a toner image formed on the surface of the bearing member by developing the electrostatic latent image, at a transfer position; wherein the charging potential of the charging member is different between when the charging member provides a first region with a potential and when the charging member provides a second region with a potential, thus providing a predetermined potential difference between the first region and the second region, and wherein the transfer member is not supplied with a voltage when the second region is at the transfer position, where the first region is a region on the image bearing member which has been charged by the charging member and which is to be an image forming region, and the second region is a region of the image bearing member which is a non-image-forming region in an immediately previous rotation of the image bearing member and which corresponds to the first region on the bearing member.

摘要翻译： 图像形成装置包括：可旋转图像承载部件，其上形成有静电潜像; 充电构件，其被提供有充电电压，该充电电压是不具有交流电压分量的直流电压，并且用于使所述支承构件接触以使用放电对所述支承构件的表面进行充电; 转印部件，用于通过在转印位置显影静电潜像，将转印材料转印到形成在轴承部件表面上的调色剂图像; 其中充电构件在充电构件提供第一区域和电位之间充电构件的充电电位不同，并且当充电构件提供具有电位的第二区域时，从而在第一区域和第二区域之间提供预定的电位差， 并且其中当所述第二区域处于所述传送位置时，所述传送构件没有被提供电压，其中所述第一区域是所述图像承载构件上已被所述充电构件充电并且将成为图像形成区域的区域 并且第二区域是图像承载部件的区域，该图像承载部件是图像承载部件的紧接着的先前旋转中的非图像形成区域，并且对应于支承部件上的第一区域。

公开(公告)号：US20050260006A1

公开(公告)日：2005-11-24

申请号：US11132343

申请日：2005-05-19

申请人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

发明人： Kohei Matsuda ,  Tetsuya Kobayashi ,  Shinya Yamamoto ,  Masato Koyanagi ,  Kentaro Kawata ,  Shinichi Agata

IPC分类号： G03G15/02

CPC分类号： G03G15/0275

摘要： An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed; a charging member for being supplied with a charging voltage which is a DC voltage not having an AC voltage component and for contacting the bearing member to electrically charge a surface of the bearing member using an electric discharge; a transfer member for transferring onto a transfer material a toner image formed on the surface of the bearing member by developing the electrostatic latent image, at a transfer position; wherein the charging potential of the charging member is different between when the charging member provides a first region with a potential and when the charging member provides a second region with a potential, thus providing a predetermined potential difference between the first region and the second region, and wherein the transfer member is not supplied with a voltage when the second region is at the transfer position, where the first region is a region on the image bearing member which has been charged by the charging member and which is to be an image forming region, and the second region is a region of the image bearing member which is a non-image-forming region in an immediately previous rotation of the image bearing member and which corresponds to the first region on the bearing member.

摘要翻译： 图像形成装置包括：可旋转图像承载部件，其上形成有静电潜像; 充电构件，其被提供有充电电压，该充电电压是不具有交流电压分量的直流电压，并且用于使所述支承构件接触以使用放电对所述支承构件的表面进行充电; 转印部件，用于通过在转印位置显影静电潜像，将转印材料转印到形成在轴承部件表面上的调色剂图像; 其中充电构件在充电构件提供第一区域和电位之间充电构件的充电电位不同，并且当充电构件提供具有电位的第二区域时，从而在第一区域和第二区域之间提供预定的电位差， 并且其中当所述第二区域处于所述传送位置时，所述传送构件没有被提供电压，其中所述第一区域是所述图像承载构件上已被所述充电构件充电并且将成为图像形成区域的区域 并且第二区域是图像承载部件的区域，该图像承载部件是在图像承载部件的紧接着的先前旋转中的非图像形成区域，并且其对应于轴承部件上的第一区域。

公开(公告)号：US20050220464A1

公开(公告)日：2005-10-06

申请号：US11092874

申请日：2005-03-30

申请人： Tetsuya Kobayashi ,  Kohei Matsuda ,  Shinya Yamamoto ,  Masato Koyanagi ,  Shinichi Agata ,  Kentaro Kawata

发明人： Tetsuya Kobayashi ,  Kohei Matsuda ,  Shinya Yamamoto ,  Masato Koyanagi ,  Shinichi Agata ,  Kentaro Kawata

IPC分类号： G03G21/00 ,  G03G15/00 ,  G03G15/01 ,  G03G15/08 ,  G03G21/18

CPC分类号： G03G15/0882 ,  G03G15/0875 ,  G03G2215/00042 ,  G03G2215/0687

摘要： An electrophotographic image forming apparatus for forming an image on a recording material, to which a cartridge is detachably mountable, includes a) a cartridge including, a developer accommodating portion for accommodating a developer for developing an electrostatic latent image formed on an electrophotographic photosensitive member, a developing roller for developing an electrostatic latent image with a developer, a developer supply opening for supplying the developer to the developing roller form the developer accommodating portion, and a sealing member for unsealably sealing the developer supply opening; b) developer detecting means for detecting that amount of the developer deposited on a member to be detected is less than a predetermined level; c) sealing member retracting means for producing an electric signal for retracting the sealing member sealing the developer supply opening from a sealing position where the sealing member seals the developer supply opening, when the detecting means detects that amount of the developer deposited on the member to be detected is less than the predetermined level.

摘要翻译： 一种用于在记录材料上形成图像的电子照相图像形成装置，盒可拆卸地安装在该记录材料上，包括：a）盒，其包括用于容纳用于显影形成在电子照相感光构件上的静电潜像的显影剂的显影剂容纳部分， 用于用显影剂显影静电潜像的显影辊，用于将显影剂供应到显影辊的显影剂供应开口形成显影剂容纳部分，以及用于将显影剂供应开口非密封地密封的密封件; b）显影剂检测装置，用于检测沉积在待检测部件上的显影剂的量小于预定水平; c）密封构件缩回装置，用于产生电信号，用于缩回密封构件，该密封构件将密封构件密封显影剂供给口的密封位置密封显影剂供应口，当检测装置检测到沉积在构件上的显影剂量为 被检测小于预定水平。