公开(公告)号：US6137977A

公开(公告)日：2000-10-24

申请号：US99136

申请日：1998-06-18

申请人： Kenji Okado ,  Ryoichi Fujita ,  Masanori Shida ,  Kazumi Yoshizaki

发明人： Kenji Okado ,  Ryoichi Fujita ,  Masanori Shida ,  Kazumi Yoshizaki

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/10 ,  G03G9/107 ,  G03G15/08

CPC分类号： G03G9/107 ,  G03G15/0853 ,  G03G9/0819 ,  G03G9/09708 ,  G03G9/10

摘要： In the image forming machine of the invention, a two-component type developer has a spherical magnetic powder dispersion type carrier, which has a weight average particle diameter of from 15 to 60 .mu.m. The external additive is present in the form of particles on the toner particle, and comprises inorganic oxide fine particles A having a shape factor SF-1 of from 100 to 130, and non-spherical inorganic oxide fine particles B, having a shape factor SF-1 larger than 150 and particles B having been obtained by combining a plurality of component particles.

摘要翻译： 在本发明的成像机中，双组分型显影剂具有球形磁粉分散型载体，其重均粒径为15至60μm。 外部添加剂以调色剂颗粒上的颗粒形式存在，并且包含形状因子SF-1为100至130的无机氧化物细颗粒A和具有形状因子SF的非球形无机氧化物细颗粒B -1大于150，颗粒B通过组合多个组分颗粒而获得。

公开(公告)号：US20110293337A1

公开(公告)日：2011-12-01

申请号：US13109125

申请日：2011-05-17

申请人： Masanori Shida

发明人： Masanori Shida

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/1615 ,  G03G15/657 ,  G03G2215/00447 ,  G03G2215/0129 ,  G03G2215/1604

摘要： An image forming apparatus includes an image bearing member for bearing a toner image; a toner image forming portion for forming a toner image on the image bearing member; a rotatable belt member, stretched by a plurality of stretching members, for carrying and conveying a recording material; a transfer member for transferring the toner image from the image bearing member onto the recording material carried on the belt member by pressing the belt member against the image bearing member; a bias applying portion for applying to the transfer member a transfer bias for transferring the toner image from the image bearing member onto the recording material; a push-up member for locally pushing up the belt member from an inner surface side of the belt member, in a direction perpendicular to a recording material conveyance direction, at a downstream-side position of the transfer member with respect to the recording material conveyance direction; and an execution portion for executing an operation in a mode in which the recording material is separated from the belt member by a push-up operation for the belt member by the push-up member. In the mode, the push-up operation of the push-up member is performed, during rotation of the belt member, before the transfer bias is applied to the transfer member.

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; 调色剂图像形成部分，用于在图像承载部件上形成调色剂图像; 可旋转的带构件，由多个拉伸构件拉伸，用于承载和输送记录材料; 转印构件，用于通过将带构件压靠在图像承载构件上将调色剂图像从图像承载构件转印到承载在带构件上的记录材料上; 偏压施加部分，用于向转印部件施加用于将调色剂图像从图像承载部件转印到记录材料上的转印偏压; 用于在传送构件相对于记录材料传送装置的下游侧位置沿垂直于记录材料输送方向的方向从带构件的内表面侧局部推起带构件的上推构件 方向; 以及执行部，用于通过上推构件通过用于带构件的上推操作以记录材料与带构件分离的模式执行操作。 在该模式中，在转印偏压被施加到转印部件之前，在带部件转动期间，执行上推元件的上推操作。

公开(公告)号：US07899349B2

公开(公告)日：2011-03-01

申请号：US12186870

申请日：2008-08-06

申请人： Masanori Shida

发明人： Masanori Shida

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G2215/0116

摘要： In an image forming apparatus, temporary constant voltages are corrected by using three voltage-current data obtained by applying voltages at three levels to a primary transfer roller to detect currents corresponding to the voltages, respectively. A surface potential of a photosensitive drum is detected by a potential sensor by changing an exposure intensity of an exposure device at three levels in a state in which the temporary constant voltage is applied to the primary transfer roller. A constant voltage during image formation is determined by correcting the temporary constant voltage by using three voltage-current data obtained by detecting currents when surfaces different in potential by light exposure pass through a primary transfer portion.

摘要翻译： 在图像形成装置中，通过使用通过将三级电压获得的三个电压电流数据分别对一次转印辊来检测临时恒定电压来检测对应于电压的电流。 通过在将暂时恒定电压施加到一次转印辊的状态下，通过改变曝光装置的曝光强度三级检测感光鼓的表面电位。 图像形成期间的恒定电压通过使用当通过曝光通过一次转印部分的电位不同的表面检测电流而获得的三个电压 - 电流数据来校正临时恒定电压来确定。

公开(公告)号：US20110044710A1

公开(公告)日：2011-02-24

申请号：US12857726

申请日：2010-08-17

申请人： Masanori Shida

发明人： Masanori Shida

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/1675

摘要： An image forming apparatus includes an image bearing member; a transfer member for transferring a toner image from the image bearing member onto a transfer material at a transfer portion; a control portion for controlling a voltage to be applied to the transfer member; a current detecting portion for detecting a value of a current passing through the transfer portion: a calculating portion for calculating a relationship between values of the voltage and the current which are obtained by applying voltages of different values at different intervals between adjacent images during execution of a continuous image forming mode in which the images are continuously formed on recording materials; a determining portion for determining the voltage value for a target current from the relationship calculated by the calculating portion; and a switching portion for switching the voltage value to the voltage value determined by the determining portion during the execution of the continuous image forming mode.

摘要翻译： 图像形成装置包括：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部分上的转印材料上的转印部件; 用于控制施加到转印部件的电压的控制部分; 用于检测通过转印部分的电流值的电流检测部分：计算部分，用于计算通过在执行期间在相邻图像之间以不同间隔施加不同值的电压而获得的电压和电流值之间的关系 在记录材料上连续地形成图像的连续成像模式; 确定部分，用于根据由计算部分计算的关系确定目标电流的电压值; 以及切换部，用于在执行连续图像形成模式期间将电压值切换到由确定部确定的电压值。

公开(公告)号：US20090041487A1

公开(公告)日：2009-02-12

申请号：US12186870

申请日：2008-08-06

申请人： Masanori Shida

发明人： Masanori Shida

IPC分类号： G03G15/02

CPC分类号： G03G15/1675 ,  G03G2215/0116

摘要： In an image forming apparatus, temporary constant voltages are not by using three voltage-current data obtained by applying voltages at three levels to a primary transfer roller to detect currents corresponding to the voltages, respectively. A surface potential of a photosensitive drum is detected by a potential sensor by changing an exposure intensity of an exposure device at three levels in a state in which the temporary constant voltage is applied to the primary transfer roller. A constant voltage during image formation is determined by correcting the temporary constant voltage by using three voltage-current data obtained by detecting currents when surfaces different in potential by light exposure pass through a primary transfer portion.

摘要翻译： 在图像形成装置中，临时恒定电压不是通过使用通过对三次电压施加三电压而获得的三个电压 - 电流数据来分别检测与电压相对应的电流。 通过在将暂时恒定电压施加到一次转印辊的状态下，通过改变曝光装置的曝光强度三级检测感光鼓的表面电位。 图像形成期间的恒定电压通过使用当通过曝光通过一次转印部分的电位不同的表面检测电流而获得的三个电压 - 电流数据来校正临时恒定电压来确定。

公开(公告)号：US20060083531A1

公开(公告)日：2006-04-20

申请号：US11251797

申请日：2005-10-18

申请人： Masanori Shida

发明人： Masanori Shida

IPC分类号： G03G15/00

CPC分类号： G03G21/0047 ,  G03G2221/0005

摘要： An image forming apparatus including an image bearing member bearing thereon a toner image charged to a predetermined polarity, a transferring device for electrostatically transferring the toner image borne on the image bearing member to a recording material, first and second cleaning members for electrostatically removing from the image bearing member any toner residual on the image bearing member when the toner image is transferred to the recording material, a first power supply for applying a bias of the same polarity as the predetermined polarity to the first cleaning member, a second power supply for applying a bias of a polarity opposite to the predetermined polarity to the second cleaning member, and a controller for variably controlling the condition of the bias applied to the first cleaning member and the condition of the bias applied to the second cleaning member independently of each other.

摘要翻译： 一种图像形成装置，包括：图像承载部件，承载有预定极性的调色剂图像;用于将承载在图像承载部件上的调色剂图像静电转印到记录材料上的转印装置;用于静电除去图像承载部件的第一和第二清洁部件; 图像承载部件，当调色剂图像被转印到记录材料上时，在图像承载部件上残留的任何调色剂，用于向第一清洁部件施加与预定极性相同极性的偏压的第一电源，用于施加第二电源 与第二清洁部件的预定极性相反的极性的偏压，以及用于可变地控制施加到第一清洁部件的偏压的状态和施加到第二清洁部件的偏压的条件彼此独立的控制器。

公开(公告)号：US20060251450A1

公开(公告)日：2006-11-09

申请号：US11484562

申请日：2006-07-12

申请人： Tatsuomi Murayama ,  Masanori Shida

发明人： Tatsuomi Murayama ,  Masanori Shida

IPC分类号： G03G15/01

CPC分类号： G03G15/0126 ,  G03G15/047 ,  G03G15/08 ,  G03G2215/0119

摘要： Provided is an image forming apparatus, including: a first image bearing member; a first transfer member that comes into contact with the intermediate transfer member; a colored toner image forming portion; a second image bearing member; a second transfer member; and a transparent toner image forming portion for forming the transparent toner image wherein the transparent toner image forming portion is provided on an upstream side with respect to the colored toner image forming portion in a movement direction of the intermediate transfer member, and a distance between a most upstream end of the second contact area and the second transfer member in a rotation direction is larger than a distance between a most upstream end of the first contact area and the first transfer member in a rotation direction.

摘要翻译： 提供一种图像形成装置，包括：第一图像承载部件; 与中间转印部件接触的第一转印部件; 彩色调色剂图像形成部分; 第二图像承载部件; 第二转移构件; 以及用于形成透明调色剂图像的透明调色剂图像形成部分，其中透明调色剂图像形成部分在中间转印部件的移动方向上相对于着色调色剂图像形成部分在上游侧设置， 第二接触区域和第二传递构件的旋转方向的最上游端大于第一接触区域的最上游端与第一传递构件之间的旋转方向的距离。

公开(公告)号：US06473584B1

公开(公告)日：2002-10-29

申请号：US09717336

申请日：2000-11-22

申请人： Masaru Hibino ,  Masanori Shida

发明人： Masaru Hibino ,  Masanori Shida

IPC分类号： G03G1508

CPC分类号： G03G15/09 ,  G03G15/0822 ,  G03G2215/0819

摘要： A developing apparatus includes a developer carrying body, opposed to an image bearing body bearing an electrostatic image, for carrying a magnetic developer, a regulating member, provided under the developer carrying body, for regulating an amount of the developer on the developer carrying body, a first magnetic pole provided in the developer carrying body and near a portion regulated by said regulating member, a second magnetic pole, provided at an upstream side of the first magnetic pole in a moving direction of the developer carrying body, for forming a repulsive magnetic field with the first magnetic pole, a first screw for agitating and carrying a developer dropped from the developer carrying body by the repulsive magnetic field, and a second screw for forming a developer circulating path with the first screw and receiving a replenished developer, wherein the first screw has a developer carrying capability lower than a developer carrying ability of the second screw. The second screw has a blade portion 25% or more of which is exposed above the surfaced developer.

摘要翻译： 显影装置包括：显影剂承载体，与承载静电图像的图像承载体相对，用于承载磁性显影剂;调节构件，设置在显影剂承载体下方，用于调节显影剂承载体上的显影剂的量; 设置在显影剂承载体中并靠近由所述调节构件调节的部分的第一磁极，设置在所述显影剂承载体的移动方向上的所述第一磁极的上游侧的第二磁极，用于形成排斥磁体 具有第一磁极的第一螺钉，用于搅拌并携带由显影剂携带体通过排斥磁场落下的显影剂的第一螺杆，以及用于与第一螺杆形成显影剂循环路径并接收补充显影剂的第二螺杆，其中， 第一螺杆具有低于第二螺杆的显影剂承载能力的显影剂承载能力。 第二螺钉具有25％以上的刀片部分暴露在表面显影剂的上方。

公开(公告)号：US06389245B2

公开(公告)日：2002-05-14

申请号：US09359733

申请日：1999-07-23

申请人： Masanori Shida ,  Yoshiaki Kobayashi ,  Masaru Hibino ,  Ichiro Ozawa

发明人： Masanori Shida ,  Yoshiaki Kobayashi ,  Masaru Hibino ,  Ichiro Ozawa

IPC分类号： G03G1508

CPC分类号： G03G15/0849 ,  G03G15/0848 ,  G03G15/0853

摘要： A developing device includes a developer bearing member for bearing and conveying a developer having a toner and a carrier, a first magnetic pole arranged in the developer bearing member, a second magnetic pole arranged in the developer bearing member, a polarity of the second magnetic pole being opposite to a polarity of the first magnetic pole. The second magnetic pole is adjacent to the first magnetic pole and is arranged on a downstream side of the first magnetic pole in a moving direction of the developer bearing member. A regulating member regulates a layer thickness of the developer borne by the developer bearer. The regulating member is arranged in the vicinity of the second magnetic pole and a concentration detector for detecting a concentration of the toner in the developer.

摘要翻译： 显影装置包括用于承载和输送具有调色剂和载体的显影剂的显影剂承载部件，布置在显影剂承载部件中的第一磁极，布置在显影剂承载部件中的第二磁极，第二磁极的极性 与第一磁极的极性相反。 第二磁极与第一磁极相邻，并且在显影剂承载部件的移动方向上布置在第一磁极的下游侧。 调节构件调节由显影剂载体承载的显影剂的层厚度。 调节构件布置在第二磁极附近，并且浓度检测器用于检测显影剂中调色剂的浓度。

公开(公告)号：US6049687A

公开(公告)日：2000-04-11

申请号：US179880

申请日：1998-10-28

申请人： Masaru Hibino ,  Yoshiaki Kobayashi ,  Masanori Shida ,  Ichiro Ozawa

发明人： Masaru Hibino ,  Yoshiaki Kobayashi ,  Masanori Shida ,  Ichiro Ozawa

IPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G15/06 ,  G03G15/08 ,  G03G15/09 ,  G03G9/08

CPC分类号： G03G9/10 ,  G03G15/0907 ,  G03G9/107

摘要： A developing apparatus has a developer bearing member disposed in opposed relationship with an image bearing member bearing an electrostatic image thereon with a gap of 6.times.10.sup.-4 m or less with respect to the image bearing member, and bearing and conveying a developer thereon. The developer bearing member is moved in a direction opposite to the direction of movement of the image bearing member in the portion opposed to the image bearing member, and the developer has a non-magnetic toner and a carrier of which the magnetization rate in a magnetic field of 1000 gauss is equal to or greater than 30 emu/cm.sup.3 and equal to or less than 200 emu/cm.sup.3 and the specific resistance at electric field intensity of 5.times.10.sup.4 V/m is 10.sup.12 .OMEGA.cm or greater. The developing apparatus further has applying means for applying a bias voltage having a vibration component to the developer bearing member. The bias voltage applied to the developer bearing member and the gap between the image bearing member and the developer carrying member satisfy the following relation:2.0.times.10.sup.6 .ltoreq.V/d

摘要翻译： 显影装置具有显影剂承载部件，该显影剂承载部件与图像承载部件相对设置，该图像承载部件相对于图像承载部件具有6×10 -4 m或更小的间隔，并且在其上承载和输送显影剂。 显影剂承载构件在与图像承载构件相对的部分中与图像承载构件的移动方向相反的方向移动，并且显影剂具有非磁性调色剂和载体，其磁化速率在磁性 1000高斯的场等于或大于30emu / cm 3且等于或小于200emu / cm 3，并且电场强度为5×10 4 V / m时的电阻率为1012ΩEG/ cm以上。 显影装置还具有用于将具有振动成分的偏置电压施加到显影剂承载部件的施加装置。 施加到显影剂承载部件的偏置电压和图像承载部件和显影剂承载部件之间的间隙满足以下关系：2.0×10 6