公开(公告)号：US6049688A

公开(公告)日：2000-04-11

申请号：US77244

申请日：1998-05-21

申请人： Kazumasa Hayashi ,  Akinori Toyoda ,  Hiroshi Komakine

发明人： Kazumasa Hayashi ,  Akinori Toyoda ,  Hiroshi Komakine

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0617

摘要： A toner layer forming device is used for a developing device of an electrophotographic device, in which a toner holding member rotates in a predetermined direction while holding on its surface a nonmagnetic toner containing a detachant. A rotary toner layer control member whose surface rotates in the reverse direction to the surface of the toner holding member while contacting the surface with the surface of the toner holding member is provided in order to control the nonmagnetic toner layer. A toner removing member partially contacts with the surface of the rotary toner layer control member in order to scrape off the nonmagnetic toner held on the rotary toner layer control member, so that the toner on the rotary toner layer control member can be removed smoothly and a stable toner layer can be formed.

摘要翻译： PCT No.PCT / JP97 / 03454 Sec。 371日期1998年5月21日 102（e）日期1998年5月21日PCT 1997年9月26日PCT公布。 公开号WO98 / 14836 日期1999年04月9日调色剂层形成装置用于电子照相装置的显影装置，其中调色剂保持构件在预定方向上旋转，同时在其表面上保持包含分离器的非磁性调色剂。 为了控制非磁性调色剂层，提供了一种旋转调色剂层控制部件，其表面在与表面与调色剂保持部件的表面接触的同时在与调色剂保持部件的表面相反的方向上旋转。 调色剂去除构件与旋转调色剂层控制构件的表面部分接触，以便刮掉保持在旋转调色剂层控制构件上的非磁性调色剂，从而可以顺利地去除旋转调色剂层控制构件上的调色剂，并且 可以形成稳定的调色剂层。

公开(公告)号：US06148167A

公开(公告)日：2000-11-14

申请号：US234542

申请日：1999-01-21

申请人： Hiroshi Komakine ,  Keizou Takeuchi ,  Kazumasa Hayashi ,  Shigemitsu Tani ,  Takumi Kitano ,  Hiroyuki Suzuki

发明人： Hiroshi Komakine ,  Keizou Takeuchi ,  Kazumasa Hayashi ,  Shigemitsu Tani ,  Takumi Kitano ,  Hiroyuki Suzuki

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0866

摘要： In order to provide a developing apparatus in which the toner thin layer regulating capability and the toner charging capability can be enhanced by a developer regulating member of a simple structure, a development roller can be rotated with a small driving force, toner is prevented from adhering and development can be performed with high accuracy, the developer regulating member of the developing apparatus is provided with a surface constituting a step in a direction vertical to the direction of the rotation axis of the development roller, a pressed surface that is pressed against the development roller in the downstream side of the step and an opposed surface formed so as to be opposed to the development roller with a predetermined space therebetween in the upstream side of the step.

摘要翻译： 为了提供能够通过简单结构的显影剂调节构件来增强调色剂薄层调节能力和调色剂带电能力的显影装置，显影辊可以以较小的驱动力旋转，防止调色剂粘附 并且可以高精度地进行显影，显影装置的显影剂调节构件具有构成与显影辊的旋转轴线的方向垂直的方向的台阶的表面，压靠在显影辊上的显影 在步骤的上游侧具有形成为与显影辊相对的相对表面，并且在该步骤的上游侧具有预定间隔。

公开(公告)号：US5550619A

公开(公告)日：1996-08-27

申请号：US179590

申请日：1994-01-10

申请人： Hiroshi Komakine ,  Hiroshi Terada ,  Hajime Yamamoto ,  Kazumasa Hayashi ,  Masahiro Aizawa

发明人： Hiroshi Komakine ,  Hiroshi Terada ,  Hajime Yamamoto ,  Kazumasa Hayashi ,  Masahiro Aizawa

IPC分类号： G03G15/09 ,  G03G15/095 ,  G03G13/00

CPC分类号： B82Y15/00 ,  G03G15/0921 ,  G03G15/095 ,  G03G2215/0621 ,  G03G2215/0639

摘要： An electrophotographic apparatus includes a photoconductor drum, also known as an electrostatic latent image holding member, with a magnet placed therein. An electrostatic latent image is formed on the magnetic drum. Then, the drum is brought into contact with a magnetic developer, or toner, in a developer reservoir to have the magnetic developer attached to the photoconductor drum surface by a magnetic force. A removing roller, having an AC voltage applied thereto, is passed in close vicinity of the magnetic drum with the resultant development of images because toner remains at image areas only. In the electrophotographic apparatus, the photoconductor drum, the removing roller or both include two magnetic poles. A device for increasing friction force of the surface of the photoconductor drum, of the removing roller or both may also be provided.

摘要翻译： 电子照相设备包括也称为静电潜像保持构件的感光鼓，其中放置有磁体。 在磁鼓上形成静电潜像。 然后，使鼓与显影剂储存器中的磁性显影剂或调色剂接触，以使磁性显影剂通过磁力附着到感光鼓表面。 具有施加交流电压的去除辊由于调色剂仅留在图像区域而靠近磁鼓而导致图像的显影。 在电子照相设备中，感光鼓，去除辊或两者都包括两个磁极。 还可以提供用于增加感光鼓的表面，除去辊或两者的摩擦力的装置。

公开(公告)号：US5539502A

公开(公告)日：1996-07-23

申请号：US405874

申请日：1995-03-17

申请人： Toshiharu Koshino ,  Masahiko Nakamura ,  Toichi Matsumura ,  Hiroshi Komata ,  Kazumasa Hayashi ,  Kenji Asakura ,  Hiroshi Komakine ,  Katsutoshi Ogawa

发明人： Toshiharu Koshino ,  Masahiko Nakamura ,  Toichi Matsumura ,  Hiroshi Komata ,  Kazumasa Hayashi ,  Kenji Asakura ,  Hiroshi Komakine ,  Katsutoshi Ogawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0822 ,  G03G2215/0819

摘要： A developing unit for use in image forming apparatus includes a unit housing divided in three chambers, i.e. a toner applying chamber facing a photoreceptor and first and second toner replenishing chambers, by respective partition walls each having an opening as a passage for toner. The first and second chambers have rotation frames, respectively. Each frame has a radially extending arm to the end of which a toner transporting sheet is connected. Each sheet is provided with a friction film. When each frame rotates, the sheet with the friction film is pulled by the frame for its rotation under the toner so as to be deformed in the form of a circular arc. The toner is transported forwardly by the friction force of the friction film. When the amount of toner is reduced in each chamber, each sheet may resiliently restore to its original shape to contact the inner surface of the corresponding chamber so that a small amount of toner on the bottom of each chamber can be carried forwardly.

摘要翻译： 用于图像形成装置的显影单元包括：分隔成三个室的单元壳体，即，面向感光体​​的调色剂施加室和第一和第二调色剂补充室，每个分隔壁具有作为调色剂通道的开口。 第一和第二腔室分别具有旋转框架。 每个框架具有径向延伸的臂，其端部连接调色剂输送片。 每个片材都设置有摩擦膜。 当每个框架旋转时，具有摩擦膜的片材被框架拉动以在调色剂下旋转，以便以圆弧的形式变形。 调色剂通过摩擦膜的摩擦力向前输送。 当每个室中的调色剂量减少时，每个片材可以弹性恢复到其原始形状以接触相应室的内表面，使得每个室的底部上的少量调色剂可以向前传送。

公开(公告)号：US5648839A

公开(公告)日：1997-07-15

申请号：US422891

申请日：1995-04-17

申请人： Toshiharu Koshino ,  Kazumasa Hayashi ,  Hiroshi Komakine ,  Kenji Asakura ,  Katsutoshi Ogawa

发明人： Toshiharu Koshino ,  Kazumasa Hayashi ,  Hiroshi Komakine ,  Kenji Asakura ,  Katsutoshi Ogawa

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0921

摘要： An image forming apparatus includes a photoconductor, a developing electrode, at least a magnet disposed in the developing electrode, and a developer. The developing electrode is reciprocally movable against a rotation axis of the photoconductor. Thus, a setting angle of a magnetic pole of the magnet is not varied, even when the developing electrode is moved for cancelling decentering and deflection of the photoconductor and the developing electrode.

摘要翻译： 图像形成装置包括光电导体，显影电极，至少设置在显影电极中的磁体和显影剂。 显影电极可相对于感光体的旋转轴线往复运动。 因此，即使当显影电极被移动以抵消感光体和显影电极的偏心和偏转时，磁体的磁极的设定角度也不会改变。

公开(公告)号：US5640648A

公开(公告)日：1997-06-17

申请号：US490332

申请日：1995-06-14

申请人： Hiroshi Komakine ,  Kazumasa Hayashi ,  Katsutoshi Ogawa ,  Kenji Asakura ,  Toshiharu Koshino

发明人： Hiroshi Komakine ,  Kazumasa Hayashi ,  Katsutoshi Ogawa ,  Kenji Asakura ,  Toshiharu Koshino

IPC分类号： G03G15/09 ,  G03G13/26 ,  G03G15/00 ,  G03G15/08

CPC分类号： G03G15/0898

摘要： Disclosed is an electrophotographic apparatus capable of producing a high-quality image free from image defects such as fine line dropouts. A photoconductor drum is used that has a magnet mounted therein in immovable fashion. After an electrostatic latent image is formed, the image is brought into contact with magnetic developer in a developer reservoir, causing the developer to be attracted to the photoconductor surface by magnetic force. When the photoconductor drum is rotated past an electrode roller to which an AC voltage is applied, toner is left only in image areas and the latent image is developed into a visible image. A sheet-like sealing member contacting the photoconductor is disposed on the upstream side of the developer reservoir in the rotating direction of the photoconductor drum. A conductive layer is provided on the surface of the sealing member opposite the surface thereof contacting the photoconductor.

摘要翻译： 公开了能够产生没有图像缺陷（例如细线掉落）的高质量图像的电子照相设备。 使用具有以不可移动的方式安装在其中的磁体的感光鼓。 在形成静电潜像之后，使图像与显影剂储存器中的磁性显影剂接触，导致显影剂被磁力吸引到感光体表面。 当感光鼓旋转超过施加有交流电压的电极辊时，调色剂仅留在图像区域中，潜像显影成可见图像。 与感光体接触的片状密封构件沿着感光鼓的旋转方向设置在显影剂储存器的上游侧。 导电层设置在密封件的与光电导体的表面相对的表面上。

公开(公告)号：US07313351B2

公开(公告)日：2007-12-25

申请号：US11195297

申请日：2005-08-02

申请人： Akinori Toyoda ,  Kazumasa Hayashi ,  Akinobu Okuda ,  Masao Ootsuka ,  Asao Toda ,  Hideki Yasuda

发明人： Akinori Toyoda ,  Kazumasa Hayashi ,  Akinobu Okuda ,  Masao Ootsuka ,  Asao Toda ,  Hideki Yasuda

IPC分类号： G03G15/08

CPC分类号： G03G15/0806 ,  G03G9/0827 ,  G03G2215/0617

摘要： The present invention provides a one-component development type developing apparatus including a rotatable electrostatic latent image holding member 1 on the surface of which an electrostatic latent image is formed, and using a toner 4 for rendering the electrostatic latent image visible, wherein when the shape factor SF-1 of a toner fine particle is expressed by: SF-1=(M2/A)×(π/4)×100 where A is the projected area of the fine particle and M is the absolute maximum length of the fine particle, then the shape factor SF-1 of the toner 4 is at least 100 and at most 140, and the developing apparatus includes: a toner holding member 3 that is formed from a silicone rubber elastic material and that is for holding the toner 4 and transporting it to the electrostatic latent image holding member 1; a toner layer regulating member 9 for forming the toner on the toner holding member 3 into a thin layer; and a toner supply member 5 that is formed from a silicone rubber foam and that rotates, in a position opposed to the toner holding member 3, in a direction opposite to that of the toner holding member 3, and an AC electric field is formed between the toner holding member 3 and the toner supply member 5.

摘要翻译： 本发明提供了一种单组分显影型显影装置，其包括在其表面上形成有静电潜像的可旋转静电潜像保持构件1，并且使用调色剂4使静电潜像可见，其中当形状 调色剂微粒的因子SF-1由以下公式表示：<？in-line-formula description =“In-line formula”end =“lead”？> SF-1 =（M 2 / A）x（pi / 4）x100 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中A是微粒的投影面积，M是绝对最大长度 那么调色剂4的形状因子SF-1至少为100和最多140，并且显影装置包括：由硅橡胶弹性材料形成并用于保持调色剂的调色剂保持部件3 并将其输送到静电潜像保持部件1; 用于将调色剂保持构件3上的调色剂形成薄层的调色剂层调节构件9; 以及由硅橡胶发泡体形成并在与调色剂保持部件3相对的位置上与调色剂保持部件3的方向相反的方向旋转的调色剂供给部件5，在 调色剂保持构件3和调色剂供给构件5。

公开(公告)号：US20050281588A1

公开(公告)日：2005-12-22

申请号：US11148640

申请日：2005-06-09

申请人： Akinobu Okuda ,  Kazumasa Hayashi ,  Akinori Toyoda ,  Masao Ootsuka ,  Hideki Yasuda ,  Naoki Takahashi

发明人： Akinobu Okuda ,  Kazumasa Hayashi ,  Akinori Toyoda ,  Masao Ootsuka ,  Hideki Yasuda ,  Naoki Takahashi

IPC分类号： G03G9/08 ,  G03G9/113 ,  G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0833

摘要： The developing apparatus of the present invention includes a developer holding member for supplying a developer including a toner and a carrier onto the surface of an electrostatic latent image holding member; first developer transporter for transporting the developer in a first direction, the first developer transporter being disposed in a first developer transport path; second developer transporter for transporting the developer in a second direction that is opposite to the first direction and supplying the developer to the developer holding member, the second developer transporter being disposed in a second developer transport path; a magnet roller for drawing up the developer that has been transported through the second developer transport path into the first developer transport path; and an inclined surface that is disposed in contact with or close to the surface of the magnet roller and that is inclined such that the height thereof decreases along the first direction, wherein the developer that is held on the magnet roller is detached by the inclined surface, and the detached developer is transported in the first direction, and wherein a space in the first developer transport path that surrounds the magnet roller has a portion having a cross-sectional open area larger than that of a space in the first developer transport path that surrounds the first developer transporter.

摘要翻译： 本发明的显影装置包括用于将静电潜像保持部件的表面供给包括调色剂和载体的显影剂的显影剂保持部件; 第一显影剂输送器，用于沿第一方向输送显影剂，第一显影剂传送器设置在第一显影剂传送路径中; 第二显影剂输送器，用于沿与第一方向相反的第二方向传送显影剂，并将显影剂供应到显影剂保持部件，第二显影剂传送器设置在第二显影剂传送路径中; 用于将已经通过第二显影剂输送路径输送的显影剂吸入第一显影剂输送路径的磁辊; 以及倾斜表面，其设置成与所述磁性辊的表面接触或靠近所述磁性辊的表面，并且倾斜使得其高度沿着所述第一方向减小，其中保持在所述磁性辊上的显影剂被所述倾斜表面 并且分离的显影剂沿第一方向传送，并且其中包围磁性辊的第一显影剂传送路径中的空间具有比第一显影剂传送路径中的空间大的横截面开口面积的部分， 围绕第一个开发商运输商。

公开(公告)号：US07412194B2

公开(公告)日：2008-08-12

申请号：US11410193

申请日：2006-04-25

申请人： Akinobu Okuda ,  Kazumasa Hayashi ,  Akinori Toyoda ,  Masao Ootsuka ,  Hideki Yasuda ,  Naoki Takahashi

发明人： Akinobu Okuda ,  Kazumasa Hayashi ,  Akinori Toyoda ,  Masao Ootsuka ,  Hideki Yasuda ,  Naoki Takahashi

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0868 ,  G03G15/0891

摘要： The present invention provides a developing apparatus that can effectively prevent generation of a ghost due to poor detachment of a developer after development, and generation of unevenness in density between a left part and a right part of an image region due to lack of an amount of the developer transported. The developing apparatus satisfies the relationship r+R≦d≦3r+R where r denotes a rotational radius of a second developer transporting screw, R denotes a rotational radius of a development roller, and d denotes a center distance between the second developer transporting screw and the development roller. The developing apparatus also satisfies the relationship M0≧(mg0×v×l)/0.02 where mg0 (g/mm2) denotes an amount of a toner per unit area that is supplied from the development roller to an electrostatic latent image having 100% image coverage which is formed on a photosensitive drum, v (mm/s) denotes a rotational peripheral velocity of the photosensitive drum, l (mm) denotes a maximum printing width on the photosensitive drum, and M0 (g/s) denotes an amount of the developer transported per unit time by the second developer transporting screw in a second developer transport direction.

摘要翻译： 本发明提供一种显影装置，其能够有效地防止由于显影后的显影剂的分离不良而产生重影，并且由于缺少量的图像区域的图像区域的左侧部分和右侧部分之间的密度不均匀性的产生 开发商运送。 显影装置满足关系<？in-line-formula description =“In-line Formulas”end =“lead”？> r + R <= D <= 3R + R <？in-line-formula description =“In 其中r表示第二显影剂传送螺杆的旋转半径，R表示显影辊的旋转半径，d表示第二显影剂传送螺丝和显影辊之间的中心距离 。 显影装置还满足关系<？in-line-formula description =“In-line Formulas”end =“lead”？> M0> =（mg0xvxl）/0.02 <？in-line-formula description =“In-line 公式“end =”tail“？>其中，mg0（g / mm 2）表示从显影辊供给到具有100％图像覆盖率的静电潜像的每单位面积的调色剂量 其形成在感光鼓上，v（mm / s）表示感光鼓的旋转圆周速度，l（mm）表示感光鼓上的最大打印宽度，M0（g / s）表示感光鼓的旋转圆周速度， 通过第二显影剂输送螺杆在第二显影剂输送方向上每单位时间输送的显影剂。

公开(公告)号：US07269381B2

公开(公告)日：2007-09-11

申请号：US11148640

申请日：2005-06-09

申请人： Akinobu Okuda ,  Kazumasa Hayashi ,  Akinori Toyoda ,  Masao Ootsuka ,  Hideki Yasuda ,  Naoki Takahashi

发明人： Akinobu Okuda ,  Kazumasa Hayashi ,  Akinori Toyoda ,  Masao Ootsuka ,  Hideki Yasuda ,  Naoki Takahashi

IPC分类号： G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0833

摘要： The developing apparatus of the present invention includes a developer holding member for supplying a developer including a toner and a carrier onto the surface of an electrostatic latent image holding member; first developer transporter for transporting the developer in a first direction, the first developer transporter being disposed in a first developer transport path; second developer transporter for transporting the developer in a second direction that is opposite to the first direction and supplying the developer to the developer holding member, the second developer transporter being disposed in a second developer transport path; a magnet roller for drawing up the developer that has been transported through the second developer transport path into the first developer transport path; and an inclined surface that is disposed in contact with or close to the surface of the magnet roller and that is inclined such that the height thereof decreases along the first direction, wherein the developer that is held on the magnet roller is detached by the inclined surface, and the detached developer is transported in the first direction, and wherein a space in the first developer transport path that surrounds the magnet roller has a portion having a cross-sectional open area larger than that of a space in the first developer transport path that surrounds the first developer transporter.

摘要翻译： 本发明的显影装置包括用于将静电潜像保持部件的表面供给包括调色剂和载体的显影剂的显影剂保持部件; 第一显影剂输送器，用于沿第一方向输送显影剂，第一显影剂传送器设置在第一显影剂传送路径中; 第二显影剂输送器，用于沿与第一方向相反的第二方向传送显影剂，并将显影剂供应到显影剂保持部件，第二显影剂传送器设置在第二显影剂传送路径中; 用于将已经通过第二显影剂输送路径输送的显影剂吸入第一显影剂输送路径的磁辊; 以及倾斜表面，其设置成与所述磁性辊的表面接触或靠近所述磁性辊的表面，并且倾斜使得其高度沿着所述第一方向减小，其中保持在所述磁性辊上的显影剂被所述倾斜表面 并且分离的显影剂沿第一方向传送，并且其中包围磁性辊的第一显影剂传送路径中的空间具有比第一显影剂传送路径中的空间大的横截面开口面积的部分， 围绕第一个开发商运输商。