公开(公告)号：US5634183A

公开(公告)日：1997-05-27

申请号：US608154

申请日：1996-02-28

申请人： Yosuke Saito ,  Hirobumi Ouchi ,  Yasuo Kikuchi ,  Katsuhiro Akinaga ,  Tomio Sugaya

发明人： Yosuke Saito ,  Hirobumi Ouchi ,  Yasuo Kikuchi ,  Katsuhiro Akinaga ,  Tomio Sugaya

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0126 ,  G03G15/0921

摘要： In an image printer performing multi-color printing, two magnetic poles having the same polarity are provided adjacent to each other in a position facing the printing body of the second developing agent holding body provided in the second developing unit, and development is performed under a condition satisfying the following formulas;B1.ltoreq.1100,1000.ltoreq.B2.ltoreq.1200,-300.ltoreq.B1-B2.ltoreq.0,F.apprxeq.0where B1 (gauss) is a magnetic flux density on the surface of the developing agent holding body of one magnetic pole of the magnetic poles arranged in the downstream side of the transmitting direction of the developing agent, and B2 (gauss) is a magnetic flux density on the surface of the developing agent holding body of the other magnetic pole of the magnetic poles arranged in the upstream side of the transmitting direction of the developing agent, and F (gf) is a rubbing force to the printing body of the magnetic brush in the second developing unit.

摘要翻译： 在执行多色打印的图像打印机中，具有相同极性的两个磁极彼此相邻地设置在与设置在第二显影单元中的第二显影剂保持体的印刷体相对的位置处，并且在 满足以下公式的条件：B1

公开(公告)号：US5276487A

公开(公告)日：1994-01-04

申请号：US875221

申请日：1992-04-28

申请人： Katsuhiro Akinaga ,  Yasuo Kikuchi ,  Tomio Sugaya

发明人： Katsuhiro Akinaga ,  Yasuo Kikuchi ,  Tomio Sugaya

IPC分类号： G03G15/01 ,  G03G13/01 ,  G03G15/08 ,  G03G13/08

CPC分类号： G03G13/013

摘要： A method of preventing colors from being mixed in a two-color image forming apparatus. The surface of a photoreceptor is uniformly charged. A first latent electrostatic image formed on the photoreceptor surface is developed with a one-component developer so as to form a first toner image. A second latent electrostatic image formed on the photoreceptor surface is developed with a two-component developer so as to form a second toner image. The first and second toner images are simultaneously transferred onto a recording medium. In a preferred embodiment, the one-component developer is a magnetic toner, while the two-component developer is the combination of a nonmagnetic toner and a magnetic carrier. The magnetic toner and the magnetic carrier are preferably powder made of substantially the same materials.

摘要翻译： 防止在双色图像形成装置中混合颜色的方法。 感光体的表面均匀带电。 形成在感光体表面上的第一静电潜像用单组分显影剂显影以形成第一调色剂图像。 形成在感光体表面上的第二静电潜像用双组分显影剂显影以形成第二调色剂图像。 第一和第二调色剂图像同时转印到记录介质上。 在优选的实施方案中，单组分显影剂是磁性调色剂，而双组分显影剂是非磁性调色剂和磁性载体的组合。 磁性调色剂和磁性载体优选是由基本上相同的材料制成的粉末。

公开(公告)号：US5179417A

公开(公告)日：1993-01-12

申请号：US868418

申请日：1992-04-15

申请人： Tomio Sugaya ,  Yasuyuki Tsuji ,  Yasuo Kikuchi ,  Katsuhiro Akinaga ,  Masaaki Akutsu ,  Motoji Kurobane

发明人： Tomio Sugaya ,  Yasuyuki Tsuji ,  Yasuo Kikuchi ,  Katsuhiro Akinaga ,  Masaaki Akutsu ,  Motoji Kurobane

IPC分类号： G03G15/00 ,  B41J3/60 ,  G03G15/20 ,  G03G15/23

CPC分类号： B41J3/60 ,  G03G15/234 ,  G03G15/238 ,  G03G2215/00021 ,  G03G2215/00409 ,  G03G2215/00459

摘要： An apparatus for printing on opposite surfaces of a strip of printing paper using two electrophotographic printing units wherein each printing operation is of high quality and thermal damage to the printing is minimized. The apparatus includes a first electrophotographic printing unit for printing on the front surface of the printing paper, a buffer unit for temporarily holding the printing paper discharged outside of the first electrophotographic printing unit, a turn unit for turning over the printing paper, and a second electrophotographic printing unit for printing the reverse surface of the printing paper. A toner having a low melting temperature is employed for each of the first and second electrophotographic printing units so that developing treatment is conducted only with the aid of a heat roll but without any use of a preheating plate. A back-up roll adapted to cooperate with the heat roll is coated with a tetrafluoroethylene-based synthetic resin. The second electrophotographic printing unit is provided with a paper presser for squeezing the printing paper against a photosensitive drum only within the printing width range. A retract mechanism is operatively connected to the paper presser.

摘要翻译： 使用两个电子照相印刷单元在一张打印纸的相对表面上打印的设备，其中每个打印操作具有高质量并且对打印的热损伤最小化。 该装置包括用于在打印纸的前表面上打印的第一电子照相印刷单元，用于临时保持排出第一电子照相印刷单元外部的打印纸的缓冲单元，用于翻转印刷纸的转动单元， 用于打印打印纸的背面的电子照相打印单元。 对于第一和第二电子照相印刷单元中的每一个都采用具有低熔点的调色剂，使得仅通过热辊而不使用预热板进行显影处理。 适用于与热辊配合的支撑辊涂覆有四氟乙烯基合成树脂。 第二电子照相印刷单元设置有仅在打印宽度范围内将打印纸压靠在感光鼓上的压纸器。 缩回机构可操作地连接到纸压脚。

公开(公告)号：US4961704A

公开(公告)日：1990-10-09

申请号：US377755

申请日：1989-07-07

申请人： Shigeo Nemoto ,  Osamu Namikawa ,  Kiyomi Tsuchiya ,  Isao Nakajima ,  Yasuo Kikuchi ,  Tomio Sugaya ,  Toshitaka Ogawa ,  Sigenobu Katagiri

发明人： Shigeo Nemoto ,  Osamu Namikawa ,  Kiyomi Tsuchiya ,  Isao Nakajima ,  Yasuo Kikuchi ,  Tomio Sugaya ,  Toshitaka Ogawa ,  Sigenobu Katagiri

IPC分类号： B41J13/02 ,  B65H23/038 ,  G03G15/00 ,  G03G15/20

CPC分类号： G03G15/2064

摘要： In a printing sheet conveying device in which a sheet bearing a toner image is passed through a heating roll and a pressure roll, and which has means for changing the right and left contact pressures of these rolls to correct the meandering movement of the sheet when conveyance of the sheet is started; in which when conveyance of the sheet is started, the contact pressure of the rolls is made higher on one of the right and left sides than on the other side, and in a predetermined period of time the contact pressures on both sides are made equal to each other.

摘要翻译： 在其中带有调色剂图像的片材通过加热辊和压力辊的打印片材输送装置中，并且具有用于改变这些辊子的左右接触压力的装置，以校正输送时片材的曲折运动 的纸张开始; 其中当纸张的输送开始时，辊的接触压力在右侧和左侧之间的接触压力高于另一侧，并且在预定时间段内使两侧的接触压力等于 彼此。

公开(公告)号：US5574546A

公开(公告)日：1996-11-12

申请号：US504314

申请日：1995-07-20

申请人： Takao Kumasaka ,  Yasuo Takuma ,  Tatsuo Igawa ,  Tomio Sugaya ,  Yasuo Kikuchi

发明人： Takao Kumasaka ,  Yasuo Takuma ,  Tatsuo Igawa ,  Tomio Sugaya ,  Yasuo Kikuchi

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G15/09 ,  G03G15/00

CPC分类号： G03G15/0921 ,  G03G2215/017 ,  G03G2215/018 ,  G03G2215/0602 ,  G03G2215/0634

摘要： A developing apparatus in which a stationary multipole permanent magnet is placed in a sleeve and in which development is performed by bringing a developer, which contains at least carrier and toner particles and is held on the periphery of a sleeve by use of the magnetic force of the multipole permanent magnet, into contact with a photo-conductive body owing to the rotation of the sleeve. For securing image density and for preventing the deposition of carrier onto the photo-conductive body, two magnetic pieces, each of which is arranged lengthwise in the direction of the axis thereof and which have the same polarity, are placed in a region in the multipole permanent magnet which faces the photo-conductive body in such a manner as to adjoin in the circumferential direction of said permanent magnet. This results in generation of the distribution of a magnetic field which has two peaks of magnetic force. The position at which the second one of the two peaks of the magnetic force is formed, downstream in the direction of rotation of the sleeve, is set at the nearest point between the photo-conductive body and the sleeve. Thereby, even when development is performed by bringing the developer into light contact with the photo-conductive body, the image density can be secured. Further, the carrier can be prevented from depositing on the photo-conductive body.

摘要翻译： 一种显影装置，其中固定的多极永磁体被放置在套筒中，并且通过使至少包含载体和调色剂颗粒并且通过使用包含至少载体和调色剂颗粒的显影剂被保持在套筒的周边上的显影剂 多极永磁体由于套筒的旋转而与光导体接触。 为了确保图像浓度并且防止载体沉积到光导体上，将两个磁性片放置在多极中的一个区域中，每个磁性片沿其轴线方向纵向排列并且具有相同的极性 永磁体以与所述永磁体的圆周方向相邻的方式面对光导体。 这导致产生具有两个磁力峰的磁场的分布。 形成磁力的两个峰值中的第二个峰的位置在套筒的旋转方向的下游位于光导体和套筒之间的最近点处。 因此，即使通过使显影剂与光导体体接触而进行显影，也可以确保图像浓度。 此外，可以防止载体沉积在光导体上。

公开(公告)号：US4949096A

公开(公告)日：1990-08-14

申请号：US399110

申请日：1989-08-28

申请人： Toshitaka Ogawa ,  Yasuo Kikuchi ,  Tomio Sugaya ,  Isao Nakajima ,  Takashi Suzuki ,  Shigenobu Katagiri

发明人： Toshitaka Ogawa ,  Yasuo Kikuchi ,  Tomio Sugaya ,  Isao Nakajima ,  Takashi Suzuki ,  Shigenobu Katagiri

IPC分类号： G03G15/04 ,  G03G15/20

CPC分类号： G03G15/2025

摘要： A laser printer with a thermal fixing unit comprises: a pair of heat and pressure rolls for pressing a sheet with a developed toner image therebetween to fix the toner image on the sheet; a web immersable with an oil; an oil coater for supplying the oil to the web and pressing the web against the heat roll at at least one point to make the web contact with the heat roll so that the oil is applied from the oil coater onto the surface of the heat roll through the web to thereby prevent occurrence of offset of the toner image; and at least one pressing member provided separately from the oil coater for locally urging the web against the heat roll, the pressing member being located on at least one of before and behind the oil coater.

摘要翻译： 具有热定影单元的激光打印机包括：一对加热辊和压辊，用于在其间压制具有显影的调色剂图像的片材以将调色剂图像定影在片材上; 一个浸有油的网; 用于将油提供到幅材上并在至少一个点处将纸幅压靠在热辊上的油涂布机，以使纸幅与热辊接触，使得油从涂油机施加到热辊的表面上 从而防止调色剂图像的偏移的发生; 以及至少一个与所述油涂层分离设置的按压构件，用于局部地将所述腹板压靠在所述热辊上，所述按压构件位于所述油涂布机之前和之后的至少之一。

公开(公告)号：US06415120B1

公开(公告)日：2002-07-02

申请号：US09676662

申请日：2000-10-02

申请人： Hajime Tashiro ,  Manabu Suzuki ,  Tomio Sugaya ,  Yoshitaka Fujinuma

发明人： Hajime Tashiro ,  Manabu Suzuki ,  Tomio Sugaya ,  Yoshitaka Fujinuma

IPC分类号： G03G1502

CPC分类号： G03G15/0258 ,  G03G15/0291

摘要： In a corona discharging apparatus for use in an electrophotographic printing apparatus, a wire spring-like member having the torque limiter function is used for the cleaning member to conduct the power transmission of the screw shaft, and by releasing the load larger than a predetermined value, the deformation of the gear and deviation of the shaft are eliminated, and the lock of the motor is prevented from being generated.

摘要翻译： 在用于电子照相打印设备的电晕放电装置中，使用具有扭矩限制功能的线弹簧状构件用于清洁构件以进行螺杆轴的动力传递，并且通过释放大于预定值的载荷 齿轮的变形和轴的偏差被消除，并且防止电动机的锁定被产生。

公开(公告)号：US06871036B2

公开(公告)日：2005-03-22

申请号：US10624558

申请日：2003-07-23

申请人： Kenji Asuwa ,  Toru Miyasaka ,  Tomio Sugaya ,  Hiroyuki Mabuchi ,  Hui Cheng

发明人： Kenji Asuwa ,  Toru Miyasaka ,  Tomio Sugaya ,  Hiroyuki Mabuchi ,  Hui Cheng

IPC分类号： B65H5/02 ,  G03G15/00 ,  G03G15/01

CPC分类号： G03G15/755

摘要： A belt driving apparatus which inhibits a belt meandering so as to improve a printing quality and rapidly starts a printing motion at a time of starting the apparatus such as a time of turning on power or the like, and an image forming apparatus using the same. The belt driving apparatus has an endless belt, a plurality of belt tension supports for supporting the belt in a tension manner, and a steering roller supported in a tiltable manner and compensating a meandering of the belt, and the belt driving apparatus is provided with a meandering compensation sensitivity adjuster for adjusting a belt meandering compensation sensitivity of the steering roller per an angle of incline.

摘要翻译： 一种带驱动装置，其抑制带曲折以提高打印质量，并且在启动诸如打开电源等的时间之类的装置时快速开始打印动作，以及使用该打印质量的图像形成装置。 带驱动装置具有环形带，用于以张力方式支撑带的多个带张力支撑件和以可倾斜的方式支撑并且补偿带的曲折的转向辊，并且带驱动装置设置有 蜿蜒补偿灵敏度调节器，用于每倾斜角度调整转向辊的带曲折补偿灵敏度。

公开(公告)号：US6067429A

公开(公告)日：2000-05-23

申请号：US305221

申请日：1999-05-05

申请人： Tomio Sugaya ,  Hidehisa Okamura

发明人： Tomio Sugaya ,  Hidehisa Okamura

IPC分类号： C08J5/14 ,  C09K3/14 ,  F16D49/00 ,  F16D59/00 ,  F16D69/02 ,  G03G15/00

CPC分类号： G03G15/757 ,  F16D49/00 ,  F16D59/00 ,  F16D69/025

摘要： A friction material and a braking device and an image forming apparatus using the friction material. The friction material is formed of polyamide elastomer having a bending modulus of elasticity defined to be in a range of from 100 MPa to 500 MPa.

摘要翻译： 摩擦材料和制动装置以及使用该摩擦材料的成像装置。 摩擦材料由弯曲弹性模量定义为100MPa至500MPa范围的聚酰胺弹性体形成。

公开(公告)号：US5307147A

公开(公告)日：1994-04-26

申请号：US945190

申请日：1992-09-15

申请人： Takao Kumasaka ,  Yuzuru Simazaki ,  Kunio Satoh ,  Tomio Sugaya ,  Youji Hirose

发明人： Takao Kumasaka ,  Yuzuru Simazaki ,  Kunio Satoh ,  Tomio Sugaya ,  Youji Hirose

IPC分类号： G03G15/01 ,  G03G21/00

CPC分类号： G03G15/0126

摘要： An electrophotographic recording apparatus is provided having a reduced overall size. The space around a photosensitive member required for the developing unit to be located is minimized, more particularly, it i minimized in the lengthwise directional space. In the electrophotographic recording apparatus having a photosensitive member which moves at a predetermined speed; an exposure device for exposing the photosensitive member; a developing unit for developing an electrostatic latent image obtained by the exposure; and a transferring device for transferring a developed visible image to a recording paper sheet or the like, the developing unit is composed of developing devices, a plurality of supporting members for supporting the developing devices and an element for rotating the supporting members. The supporting members can be rotated while making a portion adjacent to a widthwise directional end of the photosensitive member to be a supporting point in a range from a state where the surface of the photosensitive member and the surface of a developing roll of each developing device run parallel to each other to a state where they are positioned substantially perpendicular to each other.

摘要翻译： 提供具有减小的总体尺寸的电子照相记录装置。 显影单元所需的感​​光构件周围的空间被最小化，更特别地，其在纵向方向空间中被最小化。 在具有以预定速度移动的感光构件的电子照相记录装置中; 用于曝光感光构件的曝光装置; 用于显影通过曝光获得的静电潜像的显影单元; 以及用于将显影的可见图像转印到记录纸张等的转印装置，显影单元由显影装置，用于支撑显影装置的多个支撑构件和用于旋转支撑构件的元件组成。 支撑构件可以在使感光构件的宽度方向端部附近的部分成为支撑点的同时旋转，其范围从感光构件的表面和每个显影装置的显影辊的表面运行的状态 彼此平行地放置到彼此基本垂直的位置的状态。