-
11.发明授权Motor unit, motor drive unit, fan unit and method of controlling the motor drive unit 失效电机单元，电机驱动单元，风扇单元以及电机驱动单元的控制方法
公开(公告)号：US5650697A
公开(公告)日：1997-07-22
申请号：US477786
申请日：1995-06-07
申请人： Akihiko Imagi , Yoshio Yoshikuwa , Takuo Akiyama , Norikazu Ishikawa , Tatsunao Hayashida , Yu Hasegawa , Kenshi Kawagishi , Kazuyuki Mitsushima , Haruhiko Ishida , Hidekazu Totsuka
发明人： Akihiko Imagi , Yoshio Yoshikuwa , Takuo Akiyama , Norikazu Ishikawa , Tatsunao Hayashida , Yu Hasegawa , Kenshi Kawagishi , Kazuyuki Mitsushima , Haruhiko Ishida , Hidekazu Totsuka
CPC分类号： H02P25/14 , F24F11/0001 , F02B2075/027 , F24F11/0079 , Y02B30/746
摘要： The improved motor drive unit includes a zero-crossing voltage detector circuit composed of components (7) to (12) for detecting whether the voltage from an AC power supply (1) is zero-crossing and a switching circuit for performing on-off control by means of a thyristor 27 so as to switch between energization and de-energization of the AC power supply to a motor (2) and controls the speed of the motor by changing the ratio between the times of energization and de-energization of the AC power supply to the motor. The start of energization coincides with the zero-crossing of the AC power supply voltage whereas the timing of end of energization coincides with the zero-crossing of an energization current by means of the thyristor and wherein the energization time is fixed at a value either equal to or twice the power supply period whereas the de-energization time is varied in units that are integral multiples of one half the power supply period. If desired, a plurality of patterns for percent energization may be combined to attain a desired percent energization. Alternatively, a plurality of patterns that are equal in the ratio between the energization and de-energization times are used in combination. Only the main winding in the motor is preferably controlled for optimal energization.
摘要翻译： 改进的电动机驱动单元包括由用于检测来自交流电源（1）的电压是否过零的组件（7）至（12）组成的过零电压检测器电路和用于执行开关控制的开关电路 通过晶闸管27切换到电动机（2）的交流电源的通电和断电之间，并且通过改变AC的通电和断电时间之间的比例来控制电动机的速度 给电机供电。 通电的开始与交流电源电压的过零点一致，而通电结束的定时与通过晶闸管的通电电流的过零点一致，并且其中通电时间固定为相等的值 达到或两倍的供电周期，而去电时间以供电周期的一半的整数倍的单位变化。 如果需要，可以组合用于百分比通电的多个图案以获得所需的百分比通电。 或者，组合使用与通电时间和去电时间之比相等的多个图案。 优选地仅控制电动机中的主绕组以最佳的通电。
-
公开(公告)号：US20070077102A1
公开(公告)日：2007-04-05
申请号：US11242043
申请日：2005-10-04
申请人： Takao Izumi , Haruhiko Ishida , Masashi Takahashi
发明人： Takao Izumi , Haruhiko Ishida , Masashi Takahashi
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G2215/0119
摘要： An image forming apparatus of the invention holds a first developing agent of a first color and inverse transfer preventing agent, supplies the first developing agent with predetermined potential, supplies the first developing agent to an image portion of an image carrier, supplies the inverse transfer preventing agent with the first developing agent and electric charge of an inverse polarity, supplies the inverse transfer preventing agent to a non-image portion having a predetermined potential difference relative to an image portion, brings the image carrier into contact with a transfer object medium to which a second developing agent of a second color different from the first color is already transferred and transfers the first developing agent to the transfer object medium.
摘要翻译： 本发明的图像形成装置保持第一颜色和反向转移阻止剂的第一显影剂，向第一显影剂提供预定电位，将第一显影剂供应到图像载体的图像部分，提供反转移防止 具有第一显影剂和反极性的电荷的反转移防止剂相对于图像部分提供具有预定电位差的非图像部分，使图像载体与转印对象介质接触，转印对象介质 不同于第一颜色的第二颜色的第二显影剂已经被转印，并将第一显影剂转印到转印体介质上。
-
13.发明授权Image forming apparatus having means for applying a common transfer bias voltage to first and second transfer rollers 失效图像形成装置具有用于向第一和第二转印辊施加公共转印偏压的装置
公开(公告)号：US5469248A
公开(公告)日：1995-11-21
申请号：US186149
申请日：1994-01-25
IPC分类号： G03G15/01
CPC分类号： G03G15/0131
摘要： An image forming apparatus includes a first image forming unit for forming a first image on a first image carrier, a second image forming unit for forming a second image on a second image carrier, a conveyor belt confronting the first and second image carriers for conveying an image receiving medium to the first and second image carriers successively. The apparatus further includes a first transfer roller for transferring the first image from the first image carrier to the image receiving medium, the first transfer roller being located at a first distance from a first transfer position of the first image carrier along a conveying direction of the image receiving medium, and a second transfer roller for transferring the second image from the second image carrier to the image receiving medium, the second transfer roller being located at a second distance from a second transfer position of the second image carrier shorter than the first distance along the conveying direction of the image receiving medium. A common transfer bias voltage is applied to the first and second transfer rollers to form first and second electric fields at the first and second transfer positions, respectively.
摘要翻译： 一种图像形成装置包括：用于在第一图像载体上形成第一图像的第一图像形成单元，用于在第二图像载体上形成第二图像的第二图像形成单元，面对第一和第二图像载体的传送带，用于传送 图像接收介质连续地连接到第一和第二图像载体。 该装置还包括用于将第一图像从第一图像载体传送到图像接收介质的第一转印辊，第一转印辊位于距第一图像载体的第一转印位置的第一距离处，沿第一转印辊的输送方向 图像接收介质和用于将第二图像从第二图像载体传送到图像接收介质的第二转印辊，第二转印辊位于距离第二图像载体的第二转印位置短的第二距离处， 沿着图像接收介质的输送方向。 向第一和第二转印辊施加常见的转印偏压，以分别在第一和第二转印位置形成第一和第二电场。
-
公开(公告)号：US4611901A
公开(公告)日：1986-09-16
申请号：US628040
申请日：1984-07-05
CPC分类号： G03G15/0291 , G03G15/0152 , G03G15/0163
摘要： An electrophotographic method according to the present invention forms a color image on a photosensitive drum by repeating a cycle of charging, exposure and development for a plurality of times. The second charging process for charging the photosensitive drum having a first visible image thereon is performed to temporarily discharge a predetermined charge and thereafter limit reaching of the predetermined charge on a surface of the photosensitive drum in accordance with a surface potential at the photosensitive drum.
摘要翻译： 根据本发明的电子照相方法通过重复多次充电，曝光和显影的循环在感光鼓上形成彩色图像。 执行用于对其上具有第一可视图像的感光鼓充电的第二充电过程以暂时放电预定电荷，然后根据感光鼓的表面电位限制感光鼓表面上的预定电荷达到。
-
公开(公告)号：US06690483B1
公开(公告)日：2004-02-10
申请号：US09522897
申请日：2000-03-10
申请人： Haruhiko Ishida
发明人： Haruhiko Ishida
IPC分类号： G06F312
CPC分类号： G03G15/1625 , G03G2215/0103
摘要： The color image forming apparatus 1 of the present invention has two intermediate transfer media. With at least two of color images (Y+M+C+K) layered previously, the other remaining images are further layered thereon by a between-intermediate-transfer-media transfer device, and a color image is formed on a transfer material by a transfer material transfer device. The time required until the color image is outputted is shortened. Particularly, an image of single black can be outputted in a shortest time in image formation.
-
公开(公告)号：US4664504A
公开(公告)日：1987-05-12
申请号：US571800
申请日：1984-01-18
申请人： Goro Oda , Haruhiko Ishida
发明人： Goro Oda , Haruhiko Ishida
CPC分类号： G03G15/06
摘要： In an image forming apparatus according to the present invention, a cleaning device which allows for the repeated use of an photosensitive drum is removed from a space between a transferring device for transferring a visible image to the transfer sheet and a charging device for charging the photosensitive drum. The cleaning device is omitted from the image forming apparatus and a developing device for developing an electrostatic latent image can also serve as the cleaning device. Alternatively, the cleaning device is disposed between the charging device and the developing device.
摘要翻译： 在根据本发明的图像形成装置中，从用于将可见图像转印到转印纸的转印装置和用于对感光鼓充电的充电装置之间的空间中去除允许重复使用感光鼓的清洁装置 鼓。 清洁装置从图像形成装置中省略，并且用于显影静电潜像的显影装置也可以用作清洁装置。 或者，清洁装置设置在充电装置和显影装置之间。
-
17.发明授权Developing unit, image forming apparatus method that supplies inverse transfer preventing agent with inverse polarity 失效显影单元，提供具有相反极性的反转移防止剂的图像形成装置方法公开(公告)号：US07356291B2
公开(公告)日：2008-04-08
申请号：US11242043
申请日：2005-10-04
申请人： Takao Izumi , Haruhiko Ishida , Masashi Takahashi
发明人： Takao Izumi , Haruhiko Ishida , Masashi Takahashi
IPC分类号： G03G15/09 , G03G15/095
CPC分类号： G03G15/09 , G03G2215/0119
摘要： An image forming apparatus of the invention holds a first developing agent of a first color and inverse transfer preventing agent, supplies the first developing agent with predetermined potential, supplies the first developing agent to an image portion of an image carrier, supplies the inverse transfer preventing agent with the first developing agent and electric charge of an inverse polarity, supplies the inverse transfer preventing agent to a non-image portion having a predetermined potential difference relative to an image portion, brings the image carrier into contact with a transfer object medium to which a second developing agent of a second color different from the first color is already transferred and transfers the first developing agent to the transfer object medium.
摘要翻译： 本发明的图像形成装置保持第一颜色和反向转移阻止剂的第一显影剂，向第一显影剂提供预定电位，将第一显影剂供应到图像载体的图像部分，提供反转移防止 具有第一显影剂和反极性的电荷的反转移防止剂相对于图像部分提供具有预定电位差的非图像部分，使图像载体与转印对象介质接触，转印对象介质 不同于第一颜色的第二颜色的第二显影剂已经被转印，并将第一显影剂转印到转印体介质上。
-
公开(公告)号：US06999196B2
公开(公告)日：2006-02-14
申请号：US10739171
申请日：2003-12-19
申请人： Haruhiko Ishida
发明人： Haruhiko Ishida
CPC分类号： G03G15/1625 , G03G2215/0103
摘要： The color image forming apparatus (1) of the present invention has two intermediate transfer media. With at least two of color images (Y+M+C+K) layered previously, the other remaining images are further layered thereon by a between-intermediate-transfer-media transfer device, and a color image is formed on a transfer material by a transfer material transfer device. The time required until the color image is outputted is shortened. Particularly, an image of single black can be outputted in a shortest time in image formation.
摘要翻译： 本发明的彩色图像形成装置（1）具有两个中间转印介质。 利用预先分层的至少两个彩色图像（Y + M + C + K），其它剩余图像通过中间转印介质转印装置进一步分层，并且通过在转印材料上形成彩色图像 转印材料转印装置。 输出彩色图像所需的时间缩短。 特别地，可以在图像形成中以最短的时间输出单个黑色的图像。
-
公开(公告)号：US5959428A
公开(公告)日：1999-09-28
申请号：US956099
申请日：1997-10-24
CPC分类号： H02H7/08 , H02P1/28 , F25B2600/021 , F25B49/025 , Y02B30/741
摘要： Without consuming excessive energy, the invented control unit of refrigerating machine can pour out an accurate amount of refrigerant resting inside the lubricant in short time in order to prevent its foaming. A refrigerating machine provided with inverter-driven compressor comprises current detection circuit that detects current being supplied to drive the compressor and a control circuit that controls the compressor based on a detection result from the current detection circuit. The invented control unit for refrigerating machine is characterized in that the control circuit which applies fixed frequency and fixed voltage to the compressor on start-up. An operation of the compressor is valuated using detection result from the current detection circuit, and based on the result from the current detection circuit, operating frequency of the compressor is controlled.
摘要翻译： 本发明的制冷机控制单元不会消耗过多的能量，可以在短时间内将精确量的制冷剂倒在润滑剂内，以防止其发泡。 设置有逆变器驱动压缩机的制冷机包括电流检测电路，其检测供给驱动压缩机的电流和基于来自电流检测电路的检测结果来控制压缩机的控制电路。 本发明的冷冻机控制单元的特征在于，在启动时对压缩机施加固定频率和固定电压的控制电路。 使用来自电流检测电路的检测结果对压缩机的动作进行评价，根据来自电流检测电路的结果，控制压缩机的工作频率。
-
公开(公告)号：US4727395A
公开(公告)日：1988-02-23
申请号：US907312
申请日：1986-11-19
申请人： Goro Oda , Haruhiko Ishida
发明人： Goro Oda , Haruhiko Ishida
CPC分类号： G03G15/06
摘要： In an image forming apparatus according to the present invention, a cleaning device which allows for the repeated use of a photosensitive drum is removed from a space between a transferring device for transferring a visible image to the transfer sheet and a charging device for charging the photosensitive drum. The cleaning device is omitted from the image forming apparatus and a developing device for developing an electrostatic latent image can also serve as the cleaning device. Alternatively, the cleaning device is disposed between the charging device and the developing device.
摘要翻译： 在根据本发明的图像形成装置中，从用于将可见图像转印到转印纸的转印装置和用于对感光鼓充电的充电装置之间的空间中去除允许重复使用感光鼓的清洁装置 鼓。 清洁装置从图像形成装置中省略，并且用于显影静电潜像的显影装置也可以用作清洁装置。 或者，清洁装置设置在充电装置和显影装置之间。
-
-
-
-
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.022 秒)