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1. 发明授权

US06266501B1 Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal 有权
标题翻译：具有用于显影剂的密封件的图像形成装置和用于检测密封件的移除的方法
公开(公告)号：US06266501B1
公开(公告)日：2001-07-24
申请号：US09482961
申请日：2000-01-14
申请人： Haruji Mizuishi , Masaru Tanaka , Kenzo Tatsumi , Ken Amemiya , Toshitaka Yamaguchi , Hideki Zemba , Noriyuki Usui , Mayumi Ohori , Hiroshi Mizusawa
发明人： Haruji Mizuishi , Masaru Tanaka , Kenzo Tatsumi , Ken Amemiya , Toshitaka Yamaguchi , Hideki Zemba , Noriyuki Usui , Mayumi Ohori , Hiroshi Mizusawa
IPC分类号： G03G1508
CPC分类号： G03G15/0882 , G03G15/0849 , G03G2215/0687 , G03G2215/088
摘要： An image-forming apparatus includes an image-bearing device that holds an electrostatic latent image and a toner image thereon, and a developer container that contains and agitates a developer having at least a toner. The image-forming apparatus also includes a developer-bearing device that carries the developer to develop the electrostatic latent image on the image-bearing device, and a density sensor that detects an optical density of a surface of the image-bearing device and a toner image on the image-bearing device. Further, the image-forming apparatus includes a developer seal that seals the developer in the developer container, wherein the seal is disposed between the developer container and the developer-bearing device, and an actuator configured to actuate the developer container and the developer-bearing device. The image-forming apparatus still further includes a control device that determines whether the developer seal is removed according to information on the optical density of the toner image output by the density sensor.
摘要翻译：图像形成装置包括在其上保持静电潜像和调色剂图像的图像承载装置和包含并搅拌至少具有调色剂的显影剂的显影剂容器。图像形成装置还包括承载显影剂以显影图像承载装置上的静电潜像的显影剂承载装置和检测图像承载装置的表面的光密度的浓度传感器和调色剂图像承载设备上的图像。此外，图像形成装置包括密封显影剂容器中的显影剂的显影剂密封件，其中密封件设置在显影剂容器和显影剂承载装置之间，致动器构造成致动显影剂容器和显影剂承载设备。图像形成装置还包括控制装置，其根据由密度传感器输出的调色剂图像的光密度的信息来确定是否去除显影剂密封。

2. 发明授权

US6128449A Image forming apparatus and method for controlling charging and developing bias voltage 有权
标题翻译：用于控制充电和显影偏压的图像形成装置和方法
公开(公告)号：US6128449A
公开(公告)日：2000-10-03
申请号：US166146
申请日：1998-10-05
申请人： Hideki Zenba , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Okaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Mayumi Ohori
发明人： Hideki Zenba , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Okaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Mayumi Ohori
IPC分类号： G03G15/02 , G03G15/06 , G03G15/08
CPC分类号： G03G15/0216 , G03G15/065
摘要： An image forming apparatus includes a charging element configured to apply a charging voltage to an image bearing member to charge the image bearing member, an optical writing device configured to form a latent image on a charged surface of the image bearing member charged by the charging element, a developer bearing member which carries developer including toner having a same polarity as that of the charging voltage to the image bearing member and which applies the toner to the latent image on the image bearing member to form a toner image when a developing bias voltage is applied thereto, and a control device which controls application of the charging voltage by the charging element and application of the developing bias voltage to the developer bearing member so as to increase an absolute value of the charging voltage to the image bearing member and an absolute value of the developing bias voltage to the developer bearing member to a predetermined value in a plurality of steps, respectively and wherein the following relation holds for each of the plurality of steps:190(V).ltoreq.(V.sub.DC -V.sub.D).ltoreq.375(V)where V.sub.DC represents a mean value per unit time of the developing bias and V.sub.D represents a charged potential of the image bearing member.
摘要翻译：一种图像形成装置，包括充电元件，其被配置为向图像承载部件施加充电电压以对图像承载部件充电;光学写入装置，被配置为在由充电元件充电的图像承载部件的充电表面上形成潜像，显影剂承载构件，其将显影剂包括具有与充电电压相同的极性的调色剂到图像承载部件，并且当显影偏压为（显影偏压）时，将调色剂施加到图像承载部件上的潜像以形成调色剂图像以及控制装置，其控制由充电元件施加充电电压并将显影偏压施加到显影剂承载部件，以便增加对图像承载部件的充电电压的绝对值和绝对值显影偏压到显影剂承载构件的多个步骤中的预定值，其中VDC代表显影偏压每单位时间的平均值，VD表示（VDC-VD）≤350（V）图像承载部件的带电电位。

3. 发明授权

US6144811A Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper 失效
标题翻译：图像形成装置具有用于感测来自感光元件和纸张的反射光量的传感器
公开(公告)号：US6144811A
公开(公告)日：2000-11-07
申请号：US241856
申请日：1999-02-02
申请人： Mayumi Ohori , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Ohkaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Fumio Kishi
发明人： Mayumi Ohori , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Ohkaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Fumio Kishi
IPC分类号： B41J11/42 , B65H7/06 , B65H43/04 , G03G15/00 , G03G15/08
CPC分类号： G03G15/70 , G03G15/5041 , G03G2215/00042 , G03G2215/00392 , G03G2215/00544 , G03G2215/00548 , G03G2215/00616 , G03G2215/00721
摘要： A image forming apparatus with a sensing control system having an optical sensor and a control device. An detected object is recognized by using the difference of an output characteristics correspond to a quantity of reflected light. Thus, one or more detected objects may be precisely detected by the one optical sensor.
摘要翻译：一种具有感测控制系统的图像形成装置，具有光学传感器和控制装置。通过使用与反射光量对应的输出特性的差异来识别被检测物体。因此，可以由一个光学传感器精确地检测一个或多个检测到的物体。

4. 发明授权

US06898383B2 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US06898383B2
公开(公告)日：2005-05-24
申请号：US10610883
申请日：2003-07-02
申请人： Mayumi Ohori , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Ohkaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Fumio Kishi
发明人： Mayumi Ohori , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Ohkaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Fumio Kishi
IPC分类号： B41J11/42 , B65H7/06 , B65H43/04 , G03G15/00 , G03G15/08
CPC分类号： G03G15/70 , G03G15/5041 , G03G2215/00042 , G03G2215/00392 , G03G2215/00544 , G03G2215/00548 , G03G2215/00616 , G03G2215/00721
摘要： A control system for an image forming device includes a sensor mounted on an optical path unobstructed by elements that are subject to wear for detecting a time varying signal representing reflected light from both a photoconductive element and a transfer sheet internal to the image forming device, a memory storing reference values, and a controller to control an image forming operation based on the reference values stored in the memory and the time-varying signal received from the sensor. The controller reads the time-varying signal from the sensor and compares the time-varying signal read to the reference values to determine a condition of the image forming device.
摘要翻译：一种用于图像形成装置的控制系统包括安装在光路上的传感器，其不受被磨损的元件阻挡，以检测表示来自图像形成装置内部的光电导元件和转印片材的反射光的时变信号，存储器存储参考值，以及控制器，用于基于存储在存储器中的参考值和从传感器接收的时变信号来控制图像形成操作。控制器从传感器读取时变信号，并将读取的时变信号与参考值进行比较，以确定图像形成装置的状态。

5. 发明授权

US06628903B1 Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper 失效
标题翻译：图像形成装置具有用于感测来自感光元件和纸张的反射光量的传感器
公开(公告)号：US06628903B1
公开(公告)日：2003-09-30
申请号：US09627323
申请日：2000-07-27
申请人： Mayumi Ohori , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Ohkaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Fumio Kishi
发明人： Mayumi Ohori , Masaru Tanaka , Haruji Mizuishi , Hiroyuki Ohkaji , Kenzo Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Fumio Kishi
IPC分类号： G03G1500
CPC分类号： G03G15/70 , G03G15/5041 , G03G2215/00042 , G03G2215/00392 , G03G2215/00544 , G03G2215/00548 , G03G2215/00616 , G03G2215/00721
摘要： An image forming apparatus with a sensing control system having an optical sensor and a control device. A detected object is recognized by using the difference of an output characteristics correspond to a quantity of reflected light. Thus, one or more detected objects may be precisely detected by the one optical sensor.
摘要翻译：一种具有感测控制系统的图像形成装置，具有光学传感器和控制装置。通过使用与反射光量对应的输出特性的差异来识别被检测物体。因此，可以由一个光学传感器精确地检测一个或多个检测到的物体。

6. 发明授权

US6148161A Image forming apparatus with improved toner density control 有权
标题翻译：具有改进的调色剂浓度控制的图像形成装置
公开(公告)号：US6148161A
公开(公告)日：2000-11-14
申请号：US414857
申请日：1999-10-12
申请人： Noriyuki Usui , Ken Amemiya , Haruji Mizuishi , Mayumi Ohori , Masaru Tanaka , Kenzo Tatsumi , Toshitaka Yamaguchi , Hideki Zemba , Hiroshi Mizusawa
发明人： Noriyuki Usui , Ken Amemiya , Haruji Mizuishi , Mayumi Ohori , Masaru Tanaka , Kenzo Tatsumi , Toshitaka Yamaguchi , Hideki Zemba , Hiroshi Mizusawa
IPC分类号： G03G15/08 , G03G15/10
CPC分类号： G03G15/0822 , G03G15/0849 , G03G15/0853 , G03G15/5041 , G03G2215/00042
摘要： An image forming apparatus includes an image carrier and a developing device to develop a latent image formed on the image carrier by applying two-component developer, including toner, onto the latent image. The developing device includes a developing part containing the two-component developer and a developer stirring device to stir the two-component developer. A toner supplying device supplies toner to the developing part of the developing device, and a toner density detection device detects a toner density of the two-component developer in the developing device. A toner control device calculates a difference between an output value VT of the toner density detection device and a criterion value VTref for controlling the toner density of the two-component developer and controls the toner supplying device based upon the difference. An image density detection device detects an image density of a criterion image formed on the image carrier, and a criterion value correcting device corrects the criterion value VTref based upon an output value of the criterion image density detection device. A decision as to whether to stir the developer in the developing device with the developer stirring device is made based upon a difference between the criterion value VTref and the output value VT from the toner density detection device and an output value of the criterion image density detection device when an image forming operation is started.
摘要翻译：图像形成装置包括图像载体和显影装置，以通过将包括调色剂的双组分显影剂施加到潜像上来显影形成在图像载体上的潜像。显影装置包括含有双组分显影剂的显影部分和用于搅拌双组分显影剂的显影剂搅拌装置。调色剂供应装置向显影装置的显影部分供应调色剂，并且调色剂浓度检测装置检测显影装置中的双组分显影剂的调色剂浓度。调色剂控制装置计算调色剂浓度检测装置的输出值VT与用于控制双组分显影剂的调色剂浓度的标准值VTref之间的差异，并基于该差异来控制调色剂供给装置。图像浓度检测装置检测形成在图像载体上的标准图像的图像浓度，并且基准值校正装置基于标准图像浓度检测装置的输出值来校正标准值VTref。基于标准值VTref和来自调色剂浓度检测装置的输出值VT与标准图像浓度检测的输出值之间的差异，决定是否用显影剂搅拌装置搅拌显影装置中的显影剂当图像形成操作开始时的装置。

7. 发明授权

US6085062A Electrophotographic image forming apparatus 有权
标题翻译：电子照相成像设备
公开(公告)号：US6085062A
公开(公告)日：2000-07-04
申请号：US289394
申请日：1999-04-12
申请人： Haruji Mizuishi , Ken Amemiya , Hiroshi Mizusawa , Hiroyuki Ohkaji , Mayumi Ohori , Masaru Tanaka , Hideki Zenba , Kenzou Tatsumi
发明人： Haruji Mizuishi , Ken Amemiya , Hiroshi Mizusawa , Hiroyuki Ohkaji , Mayumi Ohori , Masaru Tanaka , Hideki Zenba , Kenzou Tatsumi
IPC分类号： G03G15/08 , G03G21/10
CPC分类号： G03G21/105
摘要： An electrophotographic image forming apparatus is disclosed which is provided within a cleaning device with a rotative conveying member for conveying a residual toner after removal thereof from a photoreceptor up to an inlet of a toner dropping path while rotating. Within the toner dropping path is disposed a toner bridge preventing member for preventing the formation of a toner bridge in the same path. The toner bridge preventing member is driven by the rotative conveying member so as to reciprocate substantially in parallel with the toner dropping direction.
摘要翻译：公开了一种电子照相图像形成装置，其设置在具有旋转输送构件的清洁装置内，用于在将残留调色剂从感光体转移到调色剂滴下路径的入口之后将残留调色剂输送到转盘。在调色剂滴下路径内设置有用于防止在相同路径中形成调色剂桥的调色剂阻止构件。调色剂桥防止构件由旋转传送构件驱动，以便基本上与调色剂滴下方向平行地往复运动。

8. 发明授权

US5915143A Image forming apparatus and method for automatically adjusting toner density in response to humidity variations 失效
标题翻译：用于响应于湿度变化自动调节调色剂浓度的图像形成装置和方法
公开(公告)号：US5915143A
公开(公告)日：1999-06-22
申请号：US885688
申请日：1997-06-30
申请人： Shigeru Watanabe , Masaru Tanaka , Haruji Mizuishi , Hiroshi Yoshinaga , Kenzo Tatsumi , Toshitaka Yamaguchi , Takeo Suda , Ken Amemiya , Mayumi Ohori
发明人： Shigeru Watanabe , Masaru Tanaka , Haruji Mizuishi , Hiroshi Yoshinaga , Kenzo Tatsumi , Toshitaka Yamaguchi , Takeo Suda , Ken Amemiya , Mayumi Ohori
IPC分类号： G03G15/00 , G03G15/08
CPC分类号： G03G15/0849 , G03G15/0853 , G03G15/0887
摘要： An image forming apparatus which is capable of adjusting toner density in response to variations of humidity. The image forming apparatus includes a toner density detector that detects the density of toner inside an image developer, a humidity detector that detects toner humidity inside the image forming apparatus, and a controller that controls a toner supplier on the basis of the toner density detected by the toner density detector and that adjusts the toner density in accordance with variations of humidity detected by the humidity detector. The humidity detector is located at a position where the humidity detector can detect humidity of air around the image developer and where the humidity detector is minimally affected by heated air.
摘要翻译：一种能够响应于湿度变化调节调色剂浓度的图像形成装置。图像形成装置包括：调色剂浓度检测器，其检测图像显影剂内的调色剂的浓度;检测图像形成装置内的调色剂湿度的湿度检测器;以及控制器，其基于由调色剂浓度检测器，并且根据由湿度检测器检测到的湿度变化来调节调色剂浓度。湿度检测器位于湿度检测器可以检测图像显影剂周围的空气湿度以及湿度检测器受加热空气影响最小的位置。

9. 发明授权

US6160969A Image forming apparatus with a voltage applying unit for image transfer 有权
标题翻译：具有用于图像转印的电压施加单元的图像形成装置
公开(公告)号：US6160969A
公开(公告)日：2000-12-12
申请号：US134832
申请日：1998-08-17
申请人： Kouji Ishigaki , Haruji Mizuishi , Masaru Tanaka , Hiroyuki Ohkaji , Kenzou Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Mayumi Ohori
发明人： Kouji Ishigaki , Haruji Mizuishi , Masaru Tanaka , Hiroyuki Ohkaji , Kenzou Tatsumi , Hiroshi Mizusawa , Ken Amemiya , Hideki Zenba , Mayumi Ohori
IPC分类号： G03G15/00 , G03G15/08 , G03G15/16 , G03G15/14
CPC分类号： G03G15/1675 , G03G15/5041 , G03G2215/00042
摘要： An image forming apparatus transfers a toner image from a photoconductive image carrier to a recording medium with a transfer roller and senses the density of a particular toner pattern formed on the image carrier with an optical sensor. A voltage of a first polarity opposite the polarity of the toner is applied to the transfer roller when the toner image is to be transferred to the recording medium. A voltage of a second polarity identical to the polarity of the toner is applied to the transfer roller when the toner pattern is to be moved between the image carrier and the transfer roller. Thus, even when a toner pattern is brought to the transfer roller, the transfer roller is not released from the photoconductive element.
摘要翻译：图像形成装置将调色剂图像从感光图像载体转印到具有转印辊的记录介质上，并用光学传感器感测形成在图像载体上的特定调色剂图案的浓度。当将调色剂图像转印到记录介质时，与转印辊的极性相反的第一极性的电压施加到转印辊上。当调色剂图案在图像载体和转印辊之间移动时，与转印辊的极性相同的第二极性的电压被施加到转印辊上。因此，即使将调色剂图案带到转印辊上，转印辊也不会从光电导元件释放。

10. 发明授权

US6144822A Image forming apparatus having detachable transfer roller and discharge device 有权
标题翻译：具有可拆卸转印辊和放电装置的图像形成装置
公开(公告)号：US6144822A
公开(公告)日：2000-11-07
申请号：US409423
申请日：1999-09-30
申请人： Toshitaka Yamaguchi , Masaru Tanaka , Hiroshi Mizusawa , Kenzo Tatsumi , Ken Amemiya , Haruji Mizuishi , Hideki Zemba , Noriyuki Usui , Mayumi Ohori
发明人： Toshitaka Yamaguchi , Masaru Tanaka , Hiroshi Mizusawa , Kenzo Tatsumi , Ken Amemiya , Haruji Mizuishi , Hideki Zemba , Noriyuki Usui , Mayumi Ohori
IPC分类号： G03G21/00 , G03G15/16 , G03G15/20 , G03G21/06 , G03G21/16 , G03G15/08
CPC分类号： G03G15/167
摘要： An image forming apparatus is provided, which includes an image bearing member, a transfer roller having a shaft for transferring an image on the image bearing member to a transfer sheet, a bearing mechanism for supporting the shaft, a discharging device for discharging the transfer, and a joint mechanism which mechanically connects the discharging device with the transfer roller at both ends of the shaft. Both of the transfer roller and the discharging device can be integrally detached from and attached to the image forming apparatus without detaching/attaching the bearing mechanism, by use of a handle. Therefore, an operation for replacing the transfer roller and the discharging device can be performed easily.
摘要翻译：提供了一种图像形成装置，其包括图像承载部件，具有用于将图像承载部件上的图像转印到转印纸上的转印辊，用于支撑轴的轴承机构，用于排出转印的排出装置，以及在轴的两端将排出装置与转印辊机械连接的接合机构。转印辊和排出装置可以通过使用手柄而与图像形成装置一体地分离并附接到图像形成装置而不分离/附接轴承机构。因此，可以容易地进行更换转印辊和排出装置的操作。

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