公开(公告)号：US5666588A

公开(公告)日：1997-09-09

申请号：US629750

申请日：1996-04-09

申请人： Akihiko Uchiyama ,  Haruo Fujii ,  Hiroshi Sasame ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Naoki Enomoto ,  Yoshiro Saito ,  Yoichiro Maebashi ,  Takaaki Tsuruya

发明人： Akihiko Uchiyama ,  Haruo Fujii ,  Hiroshi Sasame ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Naoki Enomoto ,  Yoshiro Saito ,  Yoichiro Maebashi ,  Takaaki Tsuruya

IPC分类号： H04N1/29 ,  G03G15/00 ,  G03G15/06 ,  G06T5/00

CPC分类号： G03G15/065 ,  G03G15/5041 ,  G03G2215/00037

摘要： By altering a developing bias, a plurality of patch images are formed on a photoconductor, and a density of each patch image is measured, thereby judging whether or not a target density value is within a range of the plurality of measured density values. If the target density value is outside the range, a developing bias which realizes the target density is obtained by an interpolation, in accordance with two measured density values that are closest to the target density value among a plurality of measured densities, and with a developing bias of two patch images that are related to these two measured density values.

摘要翻译： 通过改变显影偏压，在光电导体上形成多个贴片图像，并且测量每个贴片图像的浓度，从而判断目标浓度值是否在多个测量浓度值的范围内。 如果目标密度值在该范围之外，则通过内插获得实现目标密度的显影偏压，根据在多个测量密度中最靠近目标密度值的两个测量密度值，并且显影 与这两个测量密度值相关的两个补丁图像的偏差。

公开(公告)号：US5548381A

公开(公告)日：1996-08-20

申请号：US305557

申请日：1994-09-14

申请人： Yoshiro Saito ,  Haruo Fujii ,  Hiroshi Sasame ,  Tatsuhiko Hayakawa ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Naoki Enomoto ,  Akihiko Uchiyama ,  Youichirou Maebashi

发明人： Yoshiro Saito ,  Haruo Fujii ,  Hiroshi Sasame ,  Tatsuhiko Hayakawa ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Naoki Enomoto ,  Akihiko Uchiyama ,  Youichirou Maebashi

IPC分类号： G03G15/00 ,  G03G15/06 ,  G03G21/14

CPC分类号： G03G15/065

摘要： A developing apparatus includes a toner carrying member, disposed opposite an image bearing member for bearing an electrostatic image, for carrying toner to the image bearing member; an electric field forming device for forming an alternating electric field between the image bearing member and the toner carrying member, wherein the alternating electric field includes a first phase in which a constant electric field for urging the toner from said image bearing member toward said toner carrying member continues for a predetermined period, a second phase in which a constant electric field for urging the toner from said toner carrying member toward said image bearing member continues for a predetermined period, and a third phase in which the electric field gradually changes from that in the first phase to that in the second phase within a predetermined period .DELTA.T, and a controller for changing a ratio (.DELTA.T/T), where T is one period of the alternating electric field.

摘要翻译： 显影装置包括调色剂承载构件，与调色剂承载部件相对设置，用于承载静电图像; 用于在所述图像承载部件和所述调色剂承载部件之间形成交变电场的电场形成装置，其中所述交变电场包括第一相位，其中用于将所述调色剂从所述图像承载部件向所述调色剂承载 构件继续预定的时间段，其中用于将调色剂从所述调色剂承载构件推向所述图像承载构件的恒定电场的第二阶段持续预定时间段，并且其中电场逐渐变化的第三阶段 在预定时段DELTA T内的第二阶段的第一阶段和用于改变比率（DELTA T / T）的控制器，其中T是交变电场的一个周期。

公开(公告)号：US5543900A

公开(公告)日：1996-08-06

申请号：US357602

申请日：1994-12-12

申请人： Youichirou Maebashi ,  Haruo Fujii ,  Hiroshi Sasame ,  Hiroaki Kawakami ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Naoki Enomoto ,  Akihiko Uchiyama ,  Yoshiro Saito

发明人： Youichirou Maebashi ,  Haruo Fujii ,  Hiroshi Sasame ,  Hiroaki Kawakami ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Naoki Enomoto ,  Akihiko Uchiyama ,  Yoshiro Saito

IPC分类号： G03G9/08 ,  G03G15/01 ,  G03G15/02 ,  G03G15/08

CPC分类号： G03G15/0216

摘要： An image forming apparatus includes an image bearing member for bearing an image of toner and a charging member contactable to the image bearing member to charge the image bearing member. The charging member is adapted to receive a voltage and the toner has a melt index of not less than 0.5 g/10 min. In the apparatus,P/(V.times.L).ltoreq.50J/m.sup.2where v is a movement speed of the image bearing member when the image bearing member is charged by the charging member (m/sec), L is an effective charging length of the charging member, measured in a direction perpendicular to the movement direction of the image bearing member (m), and P is an amount of electric power consumed by the charging member (W).

摘要翻译： 图像形成装置包括用于承载调色剂图像的图像承载部件和可与图像承载部件接触以对图像承载部件充电的充电部件。 充电构件适于接收电压，并且调色剂的熔体指数不小于0.5g / 10min。 在设备中，P /（VxL）

公开(公告)号：US5508796A

公开(公告)日：1996-04-16

申请号：US215710

申请日：1994-03-22

申请人： Hiroshi Sasame ,  Takao Aoki ,  Haruo Fujii ,  Toshihiko Ochiai ,  Motoi Kato ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Toshiaki Miyashiro ,  Naoki Enomoto ,  Akihiko Uchiyama ,  Yoshiro Saito ,  Takehiko Suzuki ,  Yoichiro Maebashi

发明人： Hiroshi Sasame ,  Takao Aoki ,  Haruo Fujii ,  Toshihiko Ochiai ,  Motoi Kato ,  Tatsuya Kobayashi ,  Tetsuya Kobayashi ,  Toshiaki Miyashiro ,  Naoki Enomoto ,  Akihiko Uchiyama ,  Yoshiro Saito ,  Takehiko Suzuki ,  Yoichiro Maebashi

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/14 ,  G03G15/16 ,  G03G15/22 ,  G03G21/16

CPC分类号： G03G15/16

摘要： The present invention provides an image forming apparatus with an image bearing member capable of rotating while bearing a toner image thereon, a transfer device for transferring the toner image from the image bearing member to a recording material at a transfer position, recording material bearing member capable of rotating while bearing the recording material thereon and adapted to convey the recording material to the transfer position, a pair of rotary members arranged at an upstream side of the recording material bearing member in a recording material conveying direction and adapted to pinch and convey the recording material, and a separation device for separating the recording material from the recording material bearing member at a separation position. When a length from the pair of rotary members to the separation position along a recording material conveying path is L1, a length of the recording material in the recording material conveying direction is L3, a length from the transfer position to the separation position is L4 and a sheet-to-sheet distance between two adjacent recording materials is La, the following relations are satisfied:L1

摘要翻译： 本发明提供了一种图像形成装置，其具有能够在其上承载调色剂图像的同时转动的图像承载部件，用于将调色剂图像从图像承载部件转印到转印位置处的记录材料的转印装置，记录材料承载部件 在记录材料上承载记录材料并适于将记录材料传送到转印位置的一对旋转构件;一对旋转构件，其设置在记录材料承载构件的记录材料输送方向的上游侧并适于夹持和传送记录 材料和用于在记录材料承载部件处于分离位置处分离记录材料的分离装置。 当沿着记录材料传送路径从一对转动件到分离位置的长度为L1时，记录材料输送方向上的记录材料的长度为L3，从转印位置到分离位置的长度为L4， 两个相邻记录材料之间的片对距离为La，满足以下关系：L1 <（L3 + La），L4

公开(公告)号：US5202729A

公开(公告)日：1993-04-13

申请号：US783184

申请日：1991-10-28

申请人： Toshio Miyamoto ,  Yasushi Sato ,  Akihiko Takeuchi ,  Hiroshi Sasame ,  Katsuhiko Nishimura ,  Hiroto Hasegawa ,  Hideyuki Yano ,  Tatsunori Ishiyama ,  Hideo Nanataki ,  Harumi Kugoh

发明人： Toshio Miyamoto ,  Yasushi Sato ,  Akihiko Takeuchi ,  Hiroshi Sasame ,  Katsuhiko Nishimura ,  Hiroto Hasegawa ,  Hideyuki Yano ,  Tatsunori Ishiyama ,  Hideo Nanataki ,  Harumi Kugoh

IPC分类号： G03G15/09

CPC分类号： G03G15/0942 ,  G03G15/0928

摘要： A developing apparatus having a container for containing a one component developer, and a rotatable developing roller disposed facing an image bearing member to carry developer from the container to a development zone where it is supplied to an electrostatic latent image carried on an image bearing member. The developing roller includes a metal base member and a resin coating layer thereon in which fine conductive particles are dispersed. The developing roller has a surface including an end region adjacent an end of the roller, and an intermediate region. In the end region, the base member is not roughened and the resin layer is not provided. In the intermediate region, inside the end region, the base member is roughened and is coated with the resin layer. A sealing member is provided for preventing leakage of the developer from the container at the end of the developing roller, the sealing member being faced to the end region of the developing roller.

摘要翻译： 一种具有用于容纳单组分显影剂的容器的显影装置和面向图像承载部件设置以将显影剂从容器运送到显影区域的可旋转显影辊，在显影区域将其供应到承载在图像承载部件上的静电潜像。 显影辊在其上分散有导电性微粒的金属基材和树脂被覆层。 显影辊具有包括邻近辊的端部的端部区域和中间区域的表面。 在端部区域中，基材不粗化，不设置树脂层。 在中间区域中，在端部区域内部，基底部件被粗糙化并涂覆有树脂层。 提供一种密封构件，用于防止显影剂在显影辊端部从容器泄漏，密封构件面向显影辊的端部区域。