公开(公告)号：US07379693B2

公开(公告)日：2008-05-27

申请号：US11402022

申请日：2006-04-12

申请人： Kenya Ogawa ,  Yasushi Shimizu ,  Shuji Moriya ,  Kazunari Hagiwara ,  Naoto Kichijima ,  Koichi Okuda

发明人： Kenya Ogawa ,  Yasushi Shimizu ,  Shuji Moriya ,  Kazunari Hagiwara ,  Naoto Kichijima ,  Koichi Okuda

IPC分类号： G03G15/09

CPC分类号： G03G15/0921

摘要： A developing apparatus having a rotatable developing sleeve having an elastic layer on the surface thereof for carrying a mono-component magnetic developer and urged against a photosensitive drum to develop an electrostatic image formed on the drum with the developer, a non-rotary magnet provided inside the sleeve for magnetically attracting the developer to the sleeve, and a blade having an abutting portion abutting against the sleeve in a counter direction for regulating the amount of the developer on the sleeve, a step portion spaced apart from the abutting portion, and a separating portion provided upstream of the step portion in the rotation direction of the sleeve, wherein the surface of the sleeve to which the separating portion is opposed includes a position satisfying |Br|/|B|≧0.5, where B(G): the magnitude of magnetic flux density formed on the surface of the sleeve, and Br(G): a component of the magnetic flux density in a direction perpendicular to the surface of the sleeve.

摘要翻译： 一种具有可旋转显影套筒的显影装置，其表面上具有弹性层，用于承载单组分磁性显影剂并且被推压到感光鼓上以使显影剂形成在鼓上形成静电图像，内部设置有非旋转磁体 用于将显影剂磁性地吸引到套筒的套筒，以及具有抵靠部件的反向部分的对置部分的对置部分，用于调节套筒上显影剂的量，与抵接部分间隔开的台阶部分， 在所述套筒的所述旋转方向上游侧设置有所述套筒的与所述分离部相对的表面的位置包括满足| Br | / | B |> = 0.5的位置，其中B（G）： 在套筒表面上形成的磁通密度的大小和Br（G）：垂直于套筒表面的方向上的磁通密度的分量 。

公开(公告)号：US20060171745A1

公开(公告)日：2006-08-03

申请号：US11275729

申请日：2006-01-26

申请人： Kazunari Hagiwara ,  Kenya Ogawa ,  Shuji Moriya ,  Naoto Kichijima ,  Yasushi Shimizu ,  Koichi Okuda

发明人： Kazunari Hagiwara ,  Kenya Ogawa ,  Shuji Moriya ,  Naoto Kichijima ,  Yasushi Shimizu ,  Koichi Okuda

IPC分类号： G03G15/09

CPC分类号： G03G15/0812 ,  G03G15/0914 ,  G03G2215/0634

摘要： A developing apparatus having a developing sleeve provided with an elastic layer on its surface, and for developing an electrostatic image formed on an image bearing member with a mono-component magnetic toner having a mean degree of circularity of 0.965 or greater, a magnet provided in the developing sleeve, and a blade for regulating the amount of the developer carried on the developing sleeve satisfies the expressions |Br|/|B|≧0.5 and Nsb/(Bs×R)≦0.5, where B [G] is magnetic flux density formed on the surface of the developing sleeve by the magnet at the contact position between the blade and the developing sleeve, Nsb [mm] is the contact width between the blade and the developing sleeve, Br [G] is a component of magnetic flux density B [G] in a direction perpendicular to the surface of the developing sleeve, Bs [rad] is a half value width of the perpendicular component of the magnetic flux density of the nearest one of the magnetic poles of the magnet to the contact position on the surface of the developing sleeve, and R [mm] is the radius of the developing sleeve.

摘要翻译： 一种显影装置，具有在其表面上设置有弹性层的显影套筒，并且利用平均圆形度为0.965以上的单组分磁性调色剂在图像承载部件上形成静电图像，所述静电图像设置在 显影套筒和用于调节显影套筒上承载的显影剂量的刀片满足表达式| Br | / | B |> = 0.5和Nsb /（BsxR）<= 0.5，其中B [G]是磁通量 通过磁体在叶片和显影套筒之间的接触位置处形成在显影套筒的表面上的密度Nsb [mm]是刀片和显影套筒之间的接触宽度，Br [G]是磁通量的分量 密度B [G]在垂直于显影套筒表面的方向上，Bs [rad]是磁体的最接近的一个磁极与接触位置的磁通密度的垂直分量的半值宽度 在上 显影套筒的表面，R [mm]是显影套筒的半径。

公开(公告)号：US07440718B2

公开(公告)日：2008-10-21

申请号：US11275729

申请日：2006-01-26

申请人： Kazunari Hagiwara ,  Kenya Ogawa ,  Shuji Moriya ,  Naoto Kichijima ,  Yasushi Shimizu ,  Koichi Okuda

发明人： Kazunari Hagiwara ,  Kenya Ogawa ,  Shuji Moriya ,  Naoto Kichijima ,  Yasushi Shimizu ,  Koichi Okuda

IPC分类号： G03G15/09

CPC分类号： G03G15/0812 ,  G03G15/0914 ,  G03G2215/0634

摘要： A developing apparatus having a developing sleeve provided with an elastic layer on its surface, and for developing an electrostatic image formed on an image bearing member with a mono-component magnetic toner having a mean degree of circularity of 0.965 or greater, a magnet provided in the developing sleeve, and a blade for regulating the amount of the developer carried on the developing sleeve satisfies the expressions |Br|/|B|≧0.5 and Nsb/(Bs×R)≦0.5, where B (G) is magnetic flux density formed on the surface of the developing sleeve by the magnet at the contact position between the blade and the developing sleeve, Nsb (mm) is the contact width between the blade and the developing sleeve, Br (G) is a component of magnetic flux density B (G) in a direction perpendicular to the surface of the developing sleeve, Bs (rad) is a half value width of the perpendicular component of the magnetic flux density of the nearest one of the magnetic poles of the magnet to the contact position on the surface of the developing sleeve, and R (mm) is the radius of the developing sleeve.

摘要翻译： 一种显影装置，具有在其表面上设置有弹性层的显影套筒，并且利用平均圆形度为0.965以上的单组分磁性调色剂在图像承载部件上形成静电图像，所述静电图像设置在 显影套筒和用于调节在显影套筒上承载的显影剂量的刀片满足表达式| Br | / | B |> = 0.5和Nsb /（BsxR）<= 0.5，其中B（G）是磁通量 通过磁体在叶片和显影套筒之间的接触位置处形成在显影套筒的表面上的密度Nsb（mm）是刀片和显影套筒之间的接触宽度，Br（G）是磁通量的分量 密度B（G）在垂直于显影套筒表面的方向上的距离Bs（rad）是磁体的最接近的一个磁极与接触位置的磁通密度的垂直分量的半值宽度 在上 显影套筒的表面，R（mm）是显影套筒的半径。

公开(公告)号：US07383003B2

公开(公告)日：2008-06-03

申请号：US11402054

申请日：2006-04-12

申请人： Naoto Kichijima ,  Koichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

发明人： Naoto Kichijima ,  Koichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

IPC分类号： G03G15/09

CPC分类号： G03G15/0907

摘要： A developing apparatus includes a developing roller for developing an image with a developer; a non-rotary magnet roll inside the roller; a blade; and an abutting member abutting against the roller, wherein the following expressions are satisfied: |Vs|>|Vdev|, |Br|/|B|≦0.5, and L/(BH×R)≧0.1, where |Vdev|: a DC component Vdev of a voltage applied to the roller, |Vs|: a DC component Vs of a voltage applied to the member, B(G): the magnetic flux density formed on the surface of the roller at the abutting position by the magnet roll, Br(G): the component of the magnetic flux density B(G) perpendicular to the surface of the roller, and L(mm): the abutting width between the roller and the member, BH(rad): the half value width of the component Bθ(G) horizontal to the surface of the roller, and R(mm): the radius of the roller.

摘要翻译： 显影装置包括用显影剂显影图像的显影辊; 辊内的非旋转磁辊; 刀片 和抵抗构件，其中满足以下表达式：| Vs |> | Vdev |，| Br | / | B | <= 0.5和L /（BHxR）= 0.1，其中| Vdev | 施加到辊的电压的直流分量Vdev | Vs |：施加到构件的电压的DC分量Vs，B（G）：形成在滚子的表面上的磁通密度 磁辊，Br（G）：垂直于辊表面的磁通密度B（G）的分量，L（mm）：辊与构件之间的抵接宽度，BH（rad）：半 部件Btheta（G）的水平面与辊表面的值的宽度，R（mm）：辊的半径。

公开(公告)号：US20060233573A1

公开(公告)日：2006-10-19

申请号：US11402054

申请日：2006-04-12

申请人： Naoto Kichijima ,  Koichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

发明人： Naoto Kichijima ,  Koichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

IPC分类号： G03G15/09

CPC分类号： G03G15/0907

摘要： A developing apparatus having: a rotatable developing roller for developing an electrostatic image with a mono-component magnetic developer at a developing position; a non-rotary magnet roll inside the roller; a blade for regulating the amount of the developer at a developer regulating position; and an abutting member abutting against the roller downstream of the developing position and upstream of the developer regulating position, wherein the following expressions are satisfied: |Vs|>|Vdev|, |Br|/|B|≦0.5, and L/(BH×R)≧0.1, where |Vdev|: a DC component Vdev of a voltage applied to the roller, |Vs|: a DC component Vs of a voltage applied to the member, B(G): the magnetic flux density formed on the surface of the roller at the abutting position by the magnet roll, Br(G): the component of the magnetic flux density B(G) perpendicular to the surface of the roller, and L(mm): the abutting width between the roller and the member, BH(rad): the half value width of the component Bθ(G) horizontal to the surface of the roller, and R(mm): the radius of the roller.

摘要翻译： 一种显影装置，具有：用于在显影位置用单组分磁性显影剂显影静电图像的可旋转显影辊; 辊内的非旋转磁辊; 用于调节显影剂调节位置处的显影剂量的刀片; 和抵抗构件抵接在显影位置下游和显影剂调节位置上游的滚子，其中满足以下表达式：| Vs |> | Vdev |，| Br | / | B | <= 0.5和L / （BHxR）> = 0.1，其中| Vdev |：施加到辊的电压的DC分量Vdev | Vs |：施加到部件的电压的DC分量Vs，B（G）：形成的磁通密度 在磁辊的邻接位置的辊表面上，Br（G）：垂直于辊表面的磁通密度B（G）的分量，L（mm）： 辊和构件BH（rad）：水平面与辊表面的部件Btheta（G）的半值宽度，R（mm）：辊的半径。

公开(公告)号：US20060233572A1

公开(公告)日：2006-10-19

申请号：US11402022

申请日：2006-04-12

申请人： Kenya Ogawa ,  Yasushi Shimizu ,  Shuji Moriya ,  Kazunari Hagiwara ,  Naoto Kichijima ,  Koichi Okuda

发明人： Kenya Ogawa ,  Yasushi Shimizu ,  Shuji Moriya ,  Kazunari Hagiwara ,  Naoto Kichijima ,  Koichi Okuda

IPC分类号： G03G15/09

CPC分类号： G03G15/0921

摘要： A developing apparatus having a rotatable developing sleeve having an elastic layer on the surface thereof for carrying a mono-component magnetic developer and urged against a photosensitive drum to develop an electrostatic image formed on the drum with the developer, a non-rotary magnet provided inside the sleeve for magnetically attracting the developer to the sleeve, and a blade having an abutting portion abutting against the sleeve in a counter direction for regulating the amount of the developer on the sleeve, a step portion spaced apart from the abutting portion, and a separating portion provided upstream of the step portion in the rotation direction of the sleeve, wherein the surface of the sleeve to which the separating portion is opposed includes a position satisfying |Br|/|B|≧0.5, where B(G): the magnitude of magnetic flux density formed on the surface of the sleeve, and Br(G): a component of the magnetic flux density in a direction perpendicular to the surface of the sleeve.

摘要翻译： 一种具有可旋转显影套筒的显影装置，其表面上具有弹性层，用于承载单组分磁性显影剂并且被推压到感光鼓上以使显影剂形成在鼓上形成静电图像，内部设置有非旋转磁体 用于将显影剂磁性地吸引到套筒的套筒，以及具有抵靠部件的反向部分的对置部分的对置部分，用于调节套筒上显影剂的量，与抵接部分间隔开的台阶部分， 在所述套筒的所述旋转方向上游侧设置有所述套筒的与所述分离部相对的表面的位置包括满足| Br | / | B |> = 0.5的位置，其中B（G）： 在套筒表面上形成的磁通密度的大小和Br（G）：垂直于套筒表面的方向上的磁通密度的分量 。

公开(公告)号：US07233758B2

公开(公告)日：2007-06-19

申请号：US11011119

申请日：2004-12-15

申请人： Hikaru Osada ,  Kouichi Okuda ,  Yasushi Shimizu ,  Yasunori Chigono ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

发明人： Hikaru Osada ,  Kouichi Okuda ,  Yasushi Shimizu ,  Yasunori Chigono ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

IPC分类号： G03G15/08

CPC分类号： G03G15/09 ,  G03G9/0836 ,  G03G9/0837

摘要： A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with the developer; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member; a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein the developer carrying member is provided with a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and wherein, the developer is an one component magnetic toner having an average circularity not less than 0.965, and an amount of the developer per unit area of the developer regulated by the regulating member is 5-14 g/m2, and an amount of electric charge thereof is 10-50 μC/g.

摘要翻译： 显影装置包括可旋转的显影剂承载构件，用于承载显影剂以使显影剂形成在图像承载构件上的静电图像显影; 非旋转磁场产生装置，设置在显影剂承载构件内部，用于将显影剂磁性地吸引在显影剂承载构件上; 用于调节载持在显影剂承载构件上的显影剂的量的调节构件，其中显影剂承载构件设置有表面弹性层，并且显影剂承载构件与图像承载构件压接，并且其中，显影剂 是平均圆形度不小于0.965的单组分磁性调色剂，并且由调节构件调节的显影剂的每单位面积的显影剂的量为5-14g / m 2，并且 其电荷量为10-50微克/克。

公开(公告)号：US20050152718A1

公开(公告)日：2005-07-14

申请号：US11011119

申请日：2004-12-15

申请人： Hikaru Osada ,  Kouichi Okuda ,  Yasushi Shimizu ,  Yasunori Chigono ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

发明人： Hikaru Osada ,  Kouichi Okuda ,  Yasushi Shimizu ,  Yasunori Chigono ,  Kenya Ogawa ,  Shuji Moriya ,  Kazunari Hagiwara

IPC分类号： G03G9/083 ,  G03G15/06 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G9/0836 ,  G03G9/0837

摘要： A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with the developer; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member; a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein the developer carrying member is provided with a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and wherein, the developer is an one component magnetic toner having an average circularity not less than 0.965, and an amount of the developer per unit area of the developer regulated by the regulating member is 5-14 g/m2, and an amount of electric charge thereof is 10-50 μC/g.

摘要翻译： 显影装置包括可旋转的显影剂承载构件，用于承载显影剂以使显影剂形成在图像承载构件上的静电图像显影; 非旋转磁场产生装置，设置在显影剂承载构件内部，用于将显影剂磁性地吸引在显影剂承载构件上; 用于调节载持在显影剂承载构件上的显影剂的量的调节构件，其中显影剂承载构件设置有表面弹性层，并且显影剂承载构件与图像承载构件压接，并且其中，显影剂 是平均圆形度不小于0.965的单组分磁性调色剂，并且由调节构件调节的显影剂的每单位面积的显影剂的量为5-14g / m 2，并且 其电荷量为10-50微克/克。

公开(公告)号：US07251441B2

公开(公告)日：2007-07-31

申请号：US11091823

申请日：2005-03-29

申请人： Kazunari Hagiwara ,  Kouichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Hikaru Osada ,  Shuji Moriya

发明人： Kazunari Hagiwara ,  Kouichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Hikaru Osada ,  Shuji Moriya

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G2221/0005

摘要： A developing apparatus includes a developer carrying member for carrying a developer including one component magnetic toner to develop an electrostatic image formed on an image bearing member. The developer carrying member includes an elastic member contactable to the image bearing member; magnetic field generating means, for attracting the developer to the developer carrying member, and a regulating member for regulating an amount of the developer carried on the developer carrying member. The developer is regulated by the regulating member and applied on the developer carrying member at 5-16 g/mk2. At a position where the regulating member is contacted to the developer carrying member, a magnetic flux density B generated by the magnetic field generating means, and a component Br of the magnetic flux density B normal to a surface of the developer carrying member, satisfy, |Br|/|B|≦0.5.

摘要翻译： 显影装置包括用于承载包含单组分磁性调色剂的显影剂的显影剂承载构件，以形成形成在图像承载部件上的静电图像。 显影剂承载构件包括可与图像承载构件接触的弹性构件; 用于将显影剂吸引到显影剂承载构件的磁场产生装置，以及用于调节承载在显影剂承载构件上的显影剂的量的限制构件。 显影剂由调节构件调节并以5-16g / m 2·2施加在显影剂承载构件上。 在调节构件与显影剂承载构件接触的位置处，由磁场产生装置产生的磁通密度B和与显影剂承载构件的表面垂直的磁通密度B的分量Br满足， | Br | / | B | <= 0.5。

公开(公告)号：US20050214031A1

公开(公告)日：2005-09-29

申请号：US11091823

申请日：2005-03-29

申请人： Kazunari Hagiwara ,  Kouichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Hikaru Osada ,  Shuji Moriya

发明人： Kazunari Hagiwara ,  Kouichi Okuda ,  Yasushi Shimizu ,  Kenya Ogawa ,  Hikaru Osada ,  Shuji Moriya

IPC分类号： G03G15/09 ,  G03G15/06 ,  G03G15/08 ,  G03G21/10 ,  G03G21/16

CPC分类号： G03G15/0921 ,  G03G2221/0005

摘要： A developing apparatus includes a developer carrying member for carrying a developer including one component magnetic toner to develop an electrostatic image formed on an image bearing member with the developer, said developer carrying member including an elastic member contactable to the image bearing member; magnetic field generating means, disposed in said developer carrying member, for generating a magnetic field for attracting the developer to said developer carrying member; and a regulating member for regulating an amount of the developer carried on said developer carrying member, wherein an amount, per unit area, of the developer regulated by said regulating member and applied on said developer carrying member is 5-16 g/m2, and at a position where said regulating member is contacted to said developer carrying member, a magnetic flux density B generated by said magnetic field generating means, and a component Br of the magnetic flux density B normal to a surface of said developer carrying member, satisfy, |Br|/|B|≦0.5.

摘要翻译： 显影装置包括用于承载包含单组分磁性调色剂的显影剂的显影剂承载构件以使与显影剂形成在图像承载构件上的静电图像显影，所述显影剂承载构件包括可与图像承载构件接触的弹性构件; 设置在所述显影剂承载构件中的用于产生用于将显影剂吸引到所述显影剂承载构件的磁场的磁场产生装置; 以及用于调节载持在所述显影剂承载构件上的显影剂的量的调节构件，其中由所述调节构件调节并施加在所述显影剂承载构件上的由显影剂承载构件调节的显影剂的每单位面积的量为5-16g / m 2 > 2 ，并且在所述调节构件与所述显影剂承载构件接触的位置处，由所述磁场产生装置产生的磁通密度B和与表面垂直的磁通密度B的分量Br 满足<？in-line-formula description =“In-line Formulas”end =“lead”？> | Br | / | B | <= 0.5。<？in-line-formula description = “直线公式”end =“tail”？>