公开(公告)号：US20050053396A1

公开(公告)日：2005-03-10

申请号：US10919269

申请日：2004-08-17

申请人： Tatsuya Kubo ,  Hiroyuki Mabuchi ,  Akio Tsujita

发明人： Tatsuya Kubo ,  Hiroyuki Mabuchi ,  Akio Tsujita

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： G03G15/0233 ,  G03G15/0266 ,  G03G15/0291 ,  G03G2215/028

摘要： In a scorotron type charging device including a shield case having an opening portion toward a photosensitive body, sawtooth electrodes for generating a corona discharge, and a grid having plural grid wires provided at a predetermined interval from sawtooth electrodes, at least one side surface of shield case is arranged adjacent to one sawtooth electrode, and a relationship between a current It supplied to sawtooth electrodes and current Is flowing through shield case is set to satisfy a conditional expression of ¼≦Is/It≦½, and an interval between vertexes of sawteeth of the sawtooth electrodes is set to 1 mm or more but 3 mm or less and a relationship between a charged potential Vo of the photosensitive body and a voltage Vg applied to grid is set to satisfy a conditional expression of −50 V≦|Vo|−|Vg|≦50 (V).

摘要翻译： 在包括具有朝向感光体的开口部分的屏蔽壳体，用于产生电晕放电的锯齿电极和具有从锯齿电极以预定间隔设置的多个栅格线的栅格的遮光剂型充电装置中，至少一个屏蔽侧表面 情况被布置成与一个锯齿电极相邻，并且提供给锯齿电极的电流It和流过屏蔽壳的电流Is之间的关系被设置为满足¼<= Is / It <=½的条件表达式，以及顶点之间的间隔 将锯齿电极的锯齿形设定为1mm以上但3mm以下，并且将感光体的带电电位Vo与施加到栅格的电压Vg之间的关系设定为满足条件表达式-50V < | Vo | - | Vg | <= 50（V）。

公开(公告)号：US06694119B2

公开(公告)日：2004-02-17

申请号：US10383062

申请日：2003-03-07

申请人： Takashi Rokutanda ,  Yukio Otome ,  Hiroyuki Mabuchi

发明人： Takashi Rokutanda ,  Yukio Otome ,  Hiroyuki Mabuchi

IPC分类号： G03G1516

CPC分类号： G03G15/238 ,  G03G15/0178 ,  G03G15/16 ,  G03G2215/00455 ,  G03G2215/0119

摘要： A perfecting press apparatus for forming images on both sides of a transfer medium. With respect to a transferring current Ipt of an image forming unit, current Ipc is made large which flows from a charge control instrument for controlling charge polarity of the toner on the transfer medium in the direction of the transfer medium. In particular, in the image forming unit causing retransfer, a de-charging light source is installed between the a developing device and a transferring device for canceling charges other than at a latent image part of an image carrier, so that the relationship between Ipt and Ipc is to be 3×Ipc≦Ipc≦6×Ipt, whereby the retransfer is suppressed to minimum for producing satisfied quality of image.

摘要翻译： 一种用于在转印介质的两面上形成图像的完美压制装置。 对于图像形成单元的转印电流Ipt，电流Ipc变大，从用于控制转印介质上的调色剂的电荷极性的电荷控制仪器沿着转印介质的方向流动。 特别地，在造成转印的图像形成单元中，在显影装置和转印装置之间安装了去充电光源，用于消除图像载体的潜像部分以外的电荷，使得Ipt与 Ipc为3×Ipc <= Ipc <= 6×Ipt，由此，为了产生满意的图像质量，将再转印抑制到最小。

公开(公告)号：US5579096A

公开(公告)日：1996-11-26

申请号：US498125

申请日：1995-07-05

申请人： Yousuke Saito ,  Takao Umeda ,  Masayasu Anzai ,  Hiroyuki Mabuchi ,  Yasuo Kikuchi ,  Masato Miwa ,  Takashi Suzuki

发明人： Yousuke Saito ,  Takao Umeda ,  Masayasu Anzai ,  Hiroyuki Mabuchi ,  Yasuo Kikuchi ,  Masato Miwa ,  Takashi Suzuki

IPC分类号： G03G15/16 ,  G03G21/10 ,  G03G15/14

CPC分类号： G03G15/166 ,  G03G2215/1647 ,  G03G2215/1661

摘要： An imaging apparatus such that residual toner on a transfer/conveyer mechanism such as a transfer belt and an intermediate transfer material is effectively removable. High-tension voltage opposite in magnetic polarity (plus) to the charged toner and a photosensitive drum is applied to a discharger 15 provided ahead of a drive member 12 for driving a transfer belt 6. The residual toner on the transfer belt 6 is removed by a brush 21, and the residual foreign substances come in contact with the photosensitive drum 1 and move onto the photosensitive drum 1 before a printing operation is started. The foreign substances are then removed by a photosensitive drum cleaner.

摘要翻译： 一种成像装置，使得诸如转印带和中间转印材料的转印/输送机构上的残留调色剂被有效地除去。 将带电调色剂和感光鼓的磁极性（正）相反的高压电压施加到设置在用于驱动转印带6的驱动部件12的前方的放电器15上。转印带6上的残留调色剂通过 刷21，残留的异物与感光鼓1接触并在打印操作开始之前移动到感光鼓1上。 然后通过感光鼓清洁器去除异物。

公开(公告)号：US09658576B2

公开(公告)日：2017-05-23

申请号：US14965313

申请日：2015-12-10

申请人： Hideki Kimura ,  Tadashi Ogawa ,  Hiroyuki Mabuchi ,  Junichi Terai ,  Hiroshi Kikuchi ,  Yukio Otome ,  Hiroaki Okamoto

发明人： Hideki Kimura ,  Tadashi Ogawa ,  Hiroyuki Mabuchi ,  Junichi Terai ,  Hiroshi Kikuchi ,  Yukio Otome ,  Hiroaki Okamoto

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0898 ,  G03G15/0881 ,  G03G15/0942 ,  G03G2215/0648

摘要： A developing device includes a developer bearer, a developer regulator, a casing including an opposing face to oppose the developer bearer upstream from a developing range in a direction of rotation of the developer bearer, and first, second, and third seals. The first seal includes a first end secured to the casing and a second end to contact a latent image bearer upstream from the developing range in a direction of rotation of the latent image bearer. The second seal includes a first end secured to the opposing face of the casing, and a second end to contact the first seal upstream from the developing range. The third seal includes a first end secured to the opposing face of the casing, and a second end to contact developer on the developer bearer between the developer regulator and the developing range in the direction of rotation of the developer bearer.

公开(公告)号：US09529297B2

公开(公告)日：2016-12-27

申请号：US14982016

申请日：2015-12-29

申请人： Hiroaki Okamoto ,  Tadashi Ogawa ,  Hiroyuki Mabuchi ,  Yukio Otome ,  Junichi Terai ,  Hideki Kimura ,  Hiroshi Kikuchi

发明人： Hiroaki Okamoto ,  Tadashi Ogawa ,  Hiroyuki Mabuchi ,  Yukio Otome ,  Junichi Terai ,  Hideki Kimura ,  Hiroshi Kikuchi

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/0806 ,  G03G2215/0648

摘要： A developing device to develop a latent image on a rotatable image bearer includes an upstream developing roller disposed opposite the image bearer at a first developing position, and a downstream developing roller disposed adjacent to and downstream from the upstream developing roller in a direction of rotation of the image bearer, disposed opposite the image bearer at a second developing position. Each of the upstream developing roller and the downstream developing roller has a most approachable surface that approaches closest to the image bearer and a most withdrawn surface that withdraws farthest from the image bearer. In a state in which a reference surface point of the image bearer is disposed opposite the most approachable surface of the upstream developing roller at the first developing position, the reference surface point opposes the most withdrawn surface of the downstream developing roller at the second developing position.

摘要翻译： 用于在可旋转图像承载体上显影潜像的显影装置包括：在第一显影位置处与图像承载体相对设置的上游显影辊和沿着上游显影辊的旋转方向邻近和下游设置的下游显影辊 该图像承载件在第二显影位置处与图像承载件相对设置。 上游显影辊和下游显影辊中的每一个具有最靠近图像载体的最接近的表面，以及从图像载体最远退出的最抽出的表面。 在图像承载体的基准表面点与第一显影位置处的上游显影辊的最接近表面相对的状态下，参考表面点与第二显影位置处的下游显影辊的最大退缩表面相对 。

公开(公告)号：US07970307B2

公开(公告)日：2011-06-28

申请号：US12122938

申请日：2008-05-19

申请人： Hiroyuki Mabuchi ,  Akitomo Kuwabara

发明人： Hiroyuki Mabuchi ,  Akitomo Kuwabara

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G2215/1609

摘要： A transfer apparatus capable of suitably measuring the amount of electric charges transferred from a transfer member to a transfer body and performing a transfer process without degrading the image quality by supplying an amount of electric charges suitable for any type of transfer body onto which an toner image is to be transferred. The transfer apparatus in an image forming apparatus employing an electrophotographic method includes the transfer member electrically charging the transfer body; a charging unit for electrically charging a surface of the transfer member; and voltage sensors for measuring the voltage at each of an upstream area and a downstream area on the transfer member with respect to a transfer nip section of the transfer member.

摘要翻译： 一种转印装置，其能够适当地测量从转印部件转印到转印体上的电荷量，并进行转印处理，而不会使图像质量下降，并提供适合于任何类型的转印体的电荷量，调色剂图像 将被转移。 使用电子照相方法的图像形成装置中的转印装置包括对转印体进行充电的转印部件; 充电单元，用于对转印构件的表面进行充电; 以及电压传感器，用于相对于转印部件的转印辊隙部分测量转印部件上的上游区域和下游区域中的每一个处的电压。

公开(公告)号：US07574164B2

公开(公告)日：2009-08-11

申请号：US11233120

申请日：2005-09-23

申请人： Hisao Okada ,  Hiroyuki Mabuchi ,  Teruaki Mitsuya ,  Tsuneaki Kawanishi ,  Akio Tsujita

发明人： Hisao Okada ,  Hiroyuki Mabuchi ,  Teruaki Mitsuya ,  Tsuneaki Kawanishi ,  Akio Tsujita

IPC分类号： G03G15/09 ,  G03G9/00

CPC分类号： G03G15/09 ,  G03G9/10 ,  G03G9/1075 ,  G03G9/1139 ,  G03G15/0806 ,  G03G2215/0609 ,  G03G2215/0648

摘要： An electrophotographic apparatus includes: a photoconductor; and two developing rollers facing the photoconductor. A developer fed out from between the two developing rollers is supplied to the photoconductor by the two developing rollers to form a toner image on the photoconductor. The developer includes a carrier having a volume-average particle size smaller than 70 μm and a volume resistivity not lower than 106 Ω·cm. A volume ratio of the carrier in a facing portion between the photoconductor and the developing rollers is not lower than 30% and not higher than 46%.

摘要翻译： 电摄影装置包括：感光体; 和面向光电导体的两个显影辊。 从两个显影辊之间送出的显影剂通过两个显影辊供给到光电导体，以在感光体上形成调色剂图像。 显影剂包括体积平均粒径小于70μm，体积电阻率不低于106Ω·cm的载体。 感光体和显影辊之间的面对部分中的载体的体积比不低于30％且不高于46％。

公开(公告)号：US20050123312A1

公开(公告)日：2005-06-09

申请号：US10991100

申请日：2004-11-18

申请人： Hiroyuki Mabuchi

发明人： Hiroyuki Mabuchi

IPC分类号： G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/0893 ,  G03G2215/0609 ,  G03G2215/0827

摘要： A developing apparatus characterized in being constituted to satisfy Equation (1) shown below when an amount of a developer carried by 1 pitch of a carrying member of an auger or the like is designated by notation W(g), a toner amount supplied by 1 pitch during a time period in which the developer carried by 1 pitch passes a supply region of a toner supply roller is designated by notation M(g), a toner concentration of the developer detected by a toner concentration sensor is designated by notation Tc (%), and a mixing limit toner concentration is designated by notation Tmax (%). (W×(Tc/100)+M)/(W+M)≦Tmax/100   (1)

摘要翻译： 一种显影装置，其特征在于，当通过螺旋推运器等的承载构件的1个间距承载的显影剂的量由符号W（g）表示时，满足下面所示的等式（1），调色剂量由1 通过符号M（g）表示以1个间距传送的显影剂通过调色剂供应辊的供应区域的时间段内的间距，用符号Tc表示调色剂浓度传感器检测到的显影剂的调色剂浓度（％ ），通过符号Tmax（％）表示混合极限调色剂浓度。 （Wx（Tc / 100）+ M）/（W + M）<= Tmax / 100（1）<α在线公式描述= line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US06684036B2

公开(公告)日：2004-01-27

申请号：US10092522

申请日：2002-03-08

申请人： Keisuke Kubota ,  Teruaki Mitsuya ,  Hiroyuki Mabuchi ,  Masayoshi Ishii ,  Shinichi Akatsu

发明人： Keisuke Kubota ,  Teruaki Mitsuya ,  Hiroyuki Mabuchi ,  Masayoshi Ishii ,  Shinichi Akatsu

IPC分类号： G03G1500

CPC分类号： G03G15/5037 ,  G03G15/065 ,  G03G2215/00054

摘要： An image forming apparatus restricts disturbance of a potential patch in the case where a potential sensor for detecting the potential patch is provided downstream of a developing device of a multiple developing roller type so as to enable stable reproduction of a high quality image for a long period. The apparatus includes a potential sensor provided downstream in the moving direction of the image carrier relative to the developing device for detecting a potential on the image carrier, and a controller for setting the developing bias to a value restricting disturbance of a potential portion as an object for potential detection by the potential sensor by the developer when the potential portion passes across the developing device.

摘要翻译： 在用于检测电位贴片的潜在传感器设置在多重显影辊型的显影装置的下游的情况下，图像形成装置限制电位贴片的干扰，以便能够长期稳定再现高品质图像 。 该装置包括相对于显影装置在图像载体的移动方向下游设置用于检测图像载体上的电位的电位传感器，以及用于将显影偏压设定为限制作为对象的电位部分的干扰的值的控制器 用于当潜在部分穿过显影装置时由显影剂通过潜在的传感器进行潜在的检测。

公开(公告)号：US06131000A

公开(公告)日：2000-10-10

申请号：US208447

申请日：1998-12-10

申请人： Shinichi Akatsu ,  Teruaki Mitsuya ,  Kenichi Ito ,  Nobuyoshi Hoshi ,  Ryuuichi Shimizu ,  Hisao Okada ,  Hiroyuki Mabuchi ,  Masayoshi Ishii ,  Seiji Maruo

发明人： Shinichi Akatsu ,  Teruaki Mitsuya ,  Kenichi Ito ,  Nobuyoshi Hoshi ,  Ryuuichi Shimizu ,  Hisao Okada ,  Hiroyuki Mabuchi ,  Masayoshi Ishii ,  Seiji Maruo

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/011 ,  G03G2215/0495

摘要： An electrophotographic printing apparatus using electric potential dividing development processing without the occurrence of primary fringe and fringe caused by auxiliary exposure has reverse electric fields causing primary fringe and fringe caused by auxiliary exposure adjusted to be nearly equal to each other. The auxiliary exposure is applied to an area surrounding one image, and an electric potential of an intermediate electric potential zone is brought close to a bias electric potential of another image which is not subjected to auxiliary exposure. Further, a white portion to produce a reverse electric potential therein at the rear end of an electric potential portion to be developed with toner, relative to a rotating direction of a developing roller, is exposed with a light intensity forming an electric potential between an electric potential developing an image with toner and the intermediate electric potential, and portions at the front end and the sides are exposed with a light intensity forming the intermediate electric potential.

摘要翻译： 使用电位分割显影处理而不发生由辅助曝光引起的初级边缘和边缘的电子照相打印设备具有引起辅助曝光引起的主要边缘和边缘的反向电场，其被调整为彼此几乎相等。 辅助曝光被施加到一个图像周围的区域，并且中间电位区域的电位被接近不经过辅助曝光的另一图像的偏置电位。 此外，相对于显影辊的旋转方向，在调色剂显影的电位部分的后端处产生反向电位的白色部分被曝光，该光强度在电气之间形成电位 潜在地用调色剂显影图像和中间电位，并且以形成中间电位的光强度暴露前端和侧面的部分。