公开(公告)号：US5253024A

公开(公告)日：1993-10-12

申请号：US804516

申请日：1991-12-10

申请人： Koichi Okuda ,  Yoji Tomoyuki ,  Toshio Miyamoto ,  Junji Araya ,  Yukihiro Ohzeki ,  Masanobu Saito ,  Shunji Nakamura ,  Yasumasa Ohtsuka ,  Tatsunori Ishiyama ,  Katsuhiko Nishimura ,  Akira Hayakawa ,  Yasushi Sato ,  Kimio Nakahata

发明人： Koichi Okuda ,  Yoji Tomoyuki ,  Toshio Miyamoto ,  Junji Araya ,  Yukihiro Ohzeki ,  Masanobu Saito ,  Shunji Nakamura ,  Yasumasa Ohtsuka ,  Tatsunori Ishiyama ,  Katsuhiko Nishimura ,  Akira Hayakawa ,  Yasushi Sato ,  Kimio Nakahata

IPC分类号： G03G15/20

CPC分类号： G03G15/2064

摘要： The present invention relates to a fixing apparatus having a pair of rotary members for pinching and conveying a supporting material bearing a non-fixed toner image thereon, thereby fixing the non-fixed toner image on the supporting material and wherein a rectifier element is connected to at least one of the rotary members in a predetermined orientation, whereby the present invention prevent a toner offset that the toner on the supporting material is adhered to the rotary members.

摘要翻译： 本发明涉及一种定影装置，其具有一对旋转构件，用于夹持和输送在其上承载非定影调色剂图像的支撑材料，从而将非定影调色剂图像固定在支撑材料上，并且其中整流元件连接到 至少一个旋转构件以预定的方向，由此本发明防止调色剂偏移使得支撑材料上的调色剂粘附到旋转构件。

公开(公告)号：US5151736A

公开(公告)日：1992-09-29

申请号：US682404

申请日：1991-04-08

申请人： Yukihiro Ohzeki ,  Junji Araya ,  Tatsunori Ishiyama ,  Yasushi Sato ,  Kimio Nakahata

发明人： Yukihiro Ohzeki ,  Junji Araya ,  Tatsunori Ishiyama ,  Yasushi Sato ,  Kimio Nakahata

IPC分类号： G03G15/16

CPC分类号： G03G15/1675

摘要： An image forming apparatus includes an image bearing member carrying an image corresponding to image information; an image transfer device for transferring the image on the image bearing member onto a transfer material at a transfer position, wherein the transfer device includes a charging member contactable to a back side of the transfer material and voltage application means for applying a voltage to the charging member, wherein the voltage applying device effects a constant voltage control to the charging member when an image region of the image bearing member is at the transfer position, and effects a constant current control to the charging member at least a part of the other duration, and wherein a voltage level of the constant voltage control is determined on the basis of a voltage across the transfer device during the constant current control; wherein voltage applied to the charging member by the voltage applying device or a current through the charging member by the voltage applying device is limited.

摘要翻译： 图像形成装置包括承载与图像信息对应的图像的图像承载部件; 图像转印装置，用于将图像承载部件上的图像转印到转印位置处的转印材料上，其中转印装置包括可与转印材料的背面接触的充电部件和向充电施加电压的电压施加装置 其特征在于，当所述图像承载部件的图像区域处于转印位置时，所述电压施加装置对所述充电部件施加恒定的电压控制，并且对所述充电部件的至少一部分持续时间进行恒定电流控制， 并且其中所述恒定电压控制的电压电平基于所述恒定电流控制期间所述传输装置两端的电压来确定; 其中由电压施加装置施加到充电构件的电压或通过电压施加装置通过充电构件的电流受到限制。

公开(公告)号：US5159393A

公开(公告)日：1992-10-27

申请号：US561075

申请日：1990-08-01

申请人： Koichi Hiroshima ,  Yukihiro Ohzeki ,  Junji Araya ,  Yasushi Sato ,  Tatsunori Ishiyama ,  Kimio Nakahata ,  Koichi Tanigawa ,  Akihiko Takeuchi ,  Takayasu Yuminamochi ,  Yoshiro Tsuchiya

发明人： Koichi Hiroshima ,  Yukihiro Ohzeki ,  Junji Araya ,  Yasushi Sato ,  Tatsunori Ishiyama ,  Kimio Nakahata ,  Koichi Tanigawa ,  Akihiko Takeuchi ,  Takayasu Yuminamochi ,  Yoshiro Tsuchiya

IPC分类号： G03G15/16

CPC分类号： G03G15/167

摘要： An image forming apparatus includes a movable image bearing member, an image forming device for forming the image bearing member, and an image transfer device contactable to the image bearing member at an image transfer position. The transfer device transfers the image formed by the image forming device onto a transfer material while the transfer material is conveyed through the transfer position together with the image bearing member, wherein the transfer device has a hardness of 20-40 degrees (Asker-C), and it is pressed to the image bearing member at a pressure of 50-200 g/cm.sup.2, and wherein a peripheral speed of the transfer device at the transfer position during a transfer operation is higher than a peripheral speed of the image bearing member at the transfer position.

摘要翻译： 图像形成装置包括可动图像承载部件，用于形成图像承载部件的图像形成装置，以及在图像转印位置可与图像承载部件接触的图像转印装置。 转印装置将图像形成装置形成的图像转印到转印材料上，同时转印材料与图像承载部件一起输送通过转印位置，其中转印装置具有20-40度的硬度（Asker-C） 并且以50-200g / cm 2的压力被压向图像承载部件，并且其中转印操作期间转印位置处的转印装置的圆周速度高于图像承载部件的圆周速度 转移位置。

公开(公告)号：US5179397A

公开(公告)日：1993-01-12

申请号：US500795

申请日：1990-03-28

申请人： Yukihiro Ohzeki ,  Tatsunori Ishiyama ,  Koichi Hiroshima ,  Junji Araya ,  Yasushi Sato ,  Kimio Nakahata ,  Akihiko Takeuchi ,  Takayasu Yuminamochi ,  Hiroto Hasegawa ,  Koichi Tanigawa ,  Yasumasa Ohtsuka

发明人： Yukihiro Ohzeki ,  Tatsunori Ishiyama ,  Koichi Hiroshima ,  Junji Araya ,  Yasushi Sato ,  Kimio Nakahata ,  Akihiko Takeuchi ,  Takayasu Yuminamochi ,  Hiroto Hasegawa ,  Koichi Tanigawa ,  Yasumasa Ohtsuka

IPC分类号： G03G15/16 ,  G01D15/14

CPC分类号： G03G15/1675 ,  G03G2215/1652

摘要： An image forming apparatus includes a movable image bearing member; an image forming device for forming a toner image on the image bearing member; image transfer device for transferring the toner image from the image bearing member to a transfer material at an image transfer station, wherein the transfer device includes a charging member press-contacted or faced to the image bearing member and a device for applying a voltage to the charging member, wherein the voltage applying device applies a voltage to the charging member so that the charging member is constant-voltage-controlled when an image region of the image bearing member is in the transfer station, and the charging member is constant-current-controlled during at least a part of a period when it is not in the transfer station, wherein a voltage V2 applied during the constant voltage control is a voltage V1 appearing in the transfer device during the constant current control multiplied by a coefficient R, in which R is larger than 1.

公开(公告)号：US5034777A

公开(公告)日：1991-07-23

申请号：US537785

申请日：1990-06-14

申请人： Yukihiro Ohzeki ,  Koichi Hiroshima ,  Yoshiaki Nishimura ,  Jun Murata ,  Junji Araya ,  Tatsunori Ishiyama ,  Yasushi Sato ,  Kimio Nakahata

发明人： Yukihiro Ohzeki ,  Koichi Hiroshima ,  Yoshiaki Nishimura ,  Jun Murata ,  Junji Araya ,  Tatsunori Ishiyama ,  Yasushi Sato ,  Kimio Nakahata

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/1675

摘要： An image forming apparatus includes a movable image bearing member; an image forming device for forming an image on the image bearing member; a transfer device for transferring an image from the image bearing member to a transfer material at a transfer position, wherein the transfer device is contactable to a backside of the transfer material at the transfer position and includes a charging member including a double oxide and a voltage source for applying a voltage to the charging member, and wherein the voltage source constant-voltage-controls the charging member when an image region of the image bearing member is at the transfer position, and constant-current-controls the charging member in at least a part of a period when the image region of the image bearing member is not at the transfer position, wherein a constant voltage for the constant voltage control is determined on the basis of the constant current control.

公开(公告)号：US5450180A

公开(公告)日：1995-09-12

申请号：US240212

申请日：1994-05-09

申请人： Yukihiro Ohzeki ,  Koichi Hiroshima ,  Junji Araya ,  Yasushi Sato ,  Toshio Miyamoto ,  Kimio Nakahata

发明人： Yukihiro Ohzeki ,  Koichi Hiroshima ,  Junji Araya ,  Yasushi Sato ,  Toshio Miyamoto ,  Kimio Nakahata

IPC分类号： G03G15/16

CPC分类号： G03G15/1675

摘要： An image forming apparatus includes a movable image bearing member; an image forming device for forming an image on the image bearing member; a charging member disposed opposed to the image bearing member; and bias application device for applying a bias voltage to the charging member, wherein the bias applying device effects a constant voltage control to the charging member when an image area of the image bearing member is in a charging region of the charging member, and effects a constant current control during at least a part of a period in which an area of the image bearing member other than the image area is in the charging region, and wherein a level of a constant voltage of the constant voltage control is determined during the constant current control.

摘要翻译： 图像形成装置包括可动图像承载部件; 图像形成装置，用于在图像承载部件上形成图像; 与图像承载部件相对设置的充电部件; 以及偏压施加装置，用于对充电部件施加偏置电压，其中当图像承载部件的图像区域处于充电部件的充电区域时，偏置施加装置对充电部件施加恒定的电压控制， 在图像区域以外的图像承载部件的区域处于充电区域的期间的至少一部分期间的恒定电流控制，并且在恒定电流期间确定恒定电压控制的恒定电压的电平 控制。

公开(公告)号：US5010370A

公开(公告)日：1991-04-23

申请号：US426002

申请日：1989-10-24

申请人： Junji Araya ,  Yukihiro Ohzeki ,  Toshio Miyamoto ,  Koichi Hiroshima ,  Yasushi Sato ,  Kimio Nakahata

发明人： Junji Araya ,  Yukihiro Ohzeki ,  Toshio Miyamoto ,  Koichi Hiroshima ,  Yasushi Sato ,  Kimio Nakahata

IPC分类号： G03G15/16

CPC分类号： G03G15/1675

摘要： An image transfer apparatus for transferring a toner image onto a transfer material includes an image bearing member for carrying a developed toner image; image transfer bias applying roller for contacting to a backside of the transfer material, for urging it to the image bearing member having the toner image and for applying a transfer bias to transfer the toner image to the transfer material; wherein amounts of charge applied to the transfer material by the transfer bias applying roller during its transfer operation satisfyA.gtoreq.B/2where A (Coulomb/cm.sup.2) is an amount of the charge at a portion where a surface potential of the image bearing member is relatively low, and B (Coulomb/cm.sup.2) is an amount of the charge at a portion where the surface potential of the image bearing member is relatively high. Then, disturbance to the image by the image transfer operation can be avoided.

公开(公告)号：US5809379A

公开(公告)日：1998-09-15

申请号：US935190

申请日：1997-09-22

申请人： Hideyuki Yano ,  Yasushi Sato ,  Junji Araya ,  Yukihiro Ohzeki ,  Harumi Kugoh ,  Katsuhiro Sakaizawa ,  Tadashi Furuya ,  Osamu Iwasaki

发明人： Hideyuki Yano ,  Yasushi Sato ,  Junji Araya ,  Yukihiro Ohzeki ,  Harumi Kugoh ,  Katsuhiro Sakaizawa ,  Tadashi Furuya ,  Osamu Iwasaki

IPC分类号： G03G5/147 ,  G03G15/00 ,  G03G15/02 ,  G03G15/16

CPC分类号： G03G15/75 ,  G03G15/0216 ,  G03G15/1645 ,  G03G5/14704 ,  G03G2215/021

摘要： An electrophotographic apparatus includes a movable photosensitive member having a photoconductive layer, and a charging member for charging the photosensitive member. A latent image forming device forms an image on the photosensitive member, and an electric charge applying device applies an electric charge of a polarity opposite from a charging property of the charging member to the photosensitive member. The photosensitive member includes a rectifying layer on the photoconductive layer to provide, at an interface between the photoconductive layer and the rectifying layer, a p-n junction preventing electric charge of the opposite polarity from entering the photoconductive layer.

摘要翻译： 一种电子照相设备包括具有光电导层的可动感光部件和用于对感光部件充电的充电部件。 潜像形成装置在感光构件上形成图像，电荷施加装置将与充电构件的充电特性极性相反的电荷施加到感光构件。 感光构件包括在光电导层上的整流层，以在光电导层和整流层之间的界面处提供防止相反极性的电荷进入光电导层的p-n结。

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。

公开(公告)号：US5084733A

公开(公告)日：1992-01-28

申请号：US261999

申请日：1988-10-25

申请人： Motoi Katoh ,  Takashi Hino ,  Michihito Yamazaki ,  Keiji Okano ,  Yasushi Sato ,  Kimio Nakahata

发明人： Motoi Katoh ,  Takashi Hino ,  Michihito Yamazaki ,  Keiji Okano ,  Yasushi Sato ,  Kimio Nakahata

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0898 ,  G03G15/0812 ,  G03G15/0818 ,  G03G15/09

摘要： A developing apparatus including a developer carrying member for carrying a developer, a magnet disposed in the developer carrying member, and an elastic regulating member contacting the developer carrying member to regulate a thickness of a layer of the developer formed on the developer carrying member. The developer carrying member has a roughened surface over a width thereof larger than a width of the portion of the elastic regulating member contacting the developer carrying member while the magnet forms a magnetic field in a marginal region of the roughened surface of the developer carrying member not contacting the elastic regulating member to remove magnetic developer.