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11. 发明授权

US06686943B2 Control method of an electrophotographic record apparatus and image formation apparatus including controlling developing bias and photoconductor surface potential 失效
标题翻译：电子照相记录装置和图像形成装置的控制方法，包括控制显影偏压和感光体表面电位
公开(公告)号：US06686943B2
公开(公告)日：2004-02-03
申请号：US10193188
申请日：2002-07-12
申请人： Masayoshi Ishii , Keisuke Kubota , Teruaki Mitsuya , Shintaro Yamada
发明人： Masayoshi Ishii , Keisuke Kubota , Teruaki Mitsuya , Shintaro Yamada
IPC分类号： G03G1500
CPC分类号： G03G15/5041 , G03G2215/00037 , H04N1/4078
摘要： An image formation apparatus for keeping secularly stable image quality for all image patterns if change in the charge amount of a developer caused by environment variation or over time or change in the photoconductor characteristic occurs in electrophotographic record apparatus. A test patch image formed on a photoconductor by a parallel electric field is detected by an image density sensor, the developing bias and the photoconductor surface potential are controlled so that the density detected by the image density sensor becomes constant, a test patch image formed on the photoconductor by a peripheral electric field is detected by the image density sensor with the control condition of the image density sensor maintained, and the light application amount in which an image area of a several-dot width adjacent a blank paper part is exposed to light is controlled so that the density detected by the image density sensor becomes constant.
摘要翻译：如果在电子照相记录装置中发生由环境变化引起的显影剂的变化或随时间的变化或光电导体特性的改变，则对于所有图像图案保持长期稳定的图像质量的图像形成装置。通过图像浓度传感器检测通过平行电场在感光体上形成的测试贴片图像，显影偏压和感光体表面电位被控制，使得由图像浓度传感器检测的浓度变得恒定，测试贴片图像形成在在保持图像浓度传感器的控制条件的情况下，通过图像浓度传感器检测由周边电场产生的感光体，将与空白纸部分相邻的几点宽度的图像区域暴露于光的照射量被控制，使得由图像浓度传感器检测的浓度变得恒定。

12. 发明授权

US06813462B2 Electro-photographic developing unit 失效
标题翻译：电子照相显影单元
公开(公告)号：US06813462B2
公开(公告)日：2004-11-02
申请号：US10351533
申请日：2003-01-27
申请人： Teruaki Mitsuya , Tsuneaki Kawanishi , Masayoshi Ishii , Hisao Okada , Hiroyoshi Matsumoto , Keisuke Kubota , Natsuki Kuribayashi
发明人： Teruaki Mitsuya , Tsuneaki Kawanishi , Masayoshi Ishii , Hisao Okada , Hiroyoshi Matsumoto , Keisuke Kubota , Natsuki Kuribayashi
IPC分类号： G03G1509
CPC分类号： G03G15/09 , G03G2215/0648
摘要： A developing unit in an electro-photographic apparatus such as a printer, a facsimile and a copier for actualizing an image employing colored particles such as toner, and more particularly to a developing unit for forming a toner image on the surface of a photosensitive body. The developing unit includes a plurality of developing rollers each having a core and a sleeve. The sleeve accommodates the core. The plurality of developing rollers include a first developing roller and a second developing roller. The sleeve for the first developing roller is rotated to move in the same direction as a moving direction of the surface of the photosensitive body. The sleeve for the second developing roller is rotated to move in an opposite direction to the moving direction of the surface of the photosensitive body. The core of only one of the plurality of developing rollers is driven in rotation while the other core is fixed. Alternatively, a magnetic pole of one of the developing rollers is placed at an opposing position where the developing rollers mutually oppose while an intermediate portion between two poles of the second developer roller is placed at the opposing position.
摘要翻译：一种电子照相设备中的显影单元，例如打印机，传真机和复印机，用于实现使用诸如调色剂的着色颗粒的图像，更具体地涉及用于在感光体表面上形成调色剂图像的显影单元。显影单元包括各自具有芯和套筒的多个显影辊。套筒容纳核心。多个显影辊包括第一显影辊和第二显影辊。用于第一显影辊的套筒旋转以沿与感光体的表面的移动方向相同的方向移动。用于第二显影辊的套筒旋转以沿与感光体表面的移动方向相反的方向移动。多个显影辊中只有一个的芯被旋转驱动，而另一个芯是固定的。或者，一个显影辊的磁极被放置在显影辊相对的相对位置，而第二显影辊的两极之间的中间部分位于相对位置。

13. 发明授权

US06684036B2 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US06684036B2
公开(公告)日：2004-01-27
申请号：US10092522
申请日：2002-03-08
申请人： Keisuke Kubota , Teruaki Mitsuya , Hiroyuki Mabuchi , Masayoshi Ishii , Shinichi Akatsu
发明人： Keisuke Kubota , Teruaki Mitsuya , Hiroyuki Mabuchi , Masayoshi Ishii , Shinichi Akatsu
IPC分类号： G03G1500
CPC分类号： G03G15/5037 , G03G15/065 , G03G2215/00054
摘要： An image forming apparatus restricts disturbance of a potential patch in the case where a potential sensor for detecting the potential patch is provided downstream of a developing device of a multiple developing roller type so as to enable stable reproduction of a high quality image for a long period. The apparatus includes a potential sensor provided downstream in the moving direction of the image carrier relative to the developing device for detecting a potential on the image carrier, and a controller for setting the developing bias to a value restricting disturbance of a potential portion as an object for potential detection by the potential sensor by the developer when the potential portion passes across the developing device.
摘要翻译：在用于检测电位贴片的潜在传感器设置在多重显影辊型的显影装置的下游的情况下，图像形成装置限制电位贴片的干扰，以便能够长期稳定再现高品质图像。该装置包括相对于显影装置在图像载体的移动方向下游设置用于检测图像载体上的电位的电位传感器，以及用于将显影偏压设定为限制作为对象的电位部分的干扰的值的控制器用于当潜在部分穿过显影装置时由显影剂通过潜在的传感器进行潜在的检测。

14. 发明授权

US06792235B2 Electrophotographic apparatus including transferring device 失效
标题翻译：电子照相设备包括转印装置
公开(公告)号：US06792235B2
公开(公告)日：2004-09-14
申请号：US10189624
申请日：2002-07-08
申请人： Keisuke Kubota , Masayoshi Ishii , Teruaki Mitsuya , Hideki Ando
发明人： Keisuke Kubota , Masayoshi Ishii , Teruaki Mitsuya , Hideki Ando
IPC分类号： G03G1516
CPC分类号： G03G15/6535 , G03G15/1635
摘要： A transfer flow-in current which flows from a transferring device into an image carrier, a separation flow-in current which flows from a separating device into the image carrier, an aperture width in the recording member transporting direction of an aperture of the transferring device, and an aperture width in the recording member transporting direction of an aperture of the separating device are set so as to have the relationship: separation flow-in current=transfer flow-in current×(transfer aperture width/separation aperture width).
摘要翻译：从转印装置流入图像载体的转移流入电流，从分离装置流入图像载体的分离流入电流，转印装置的孔径的记录部件输送方向的开口宽度并且分离装置的孔径的记录部件传送方向上的孔径宽度被设定为具有分离流入电流=转印流入电流×（转印孔径宽度/分离孔径宽度）的关系。

15. 发明授权

US07106983B2 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US07106983B2
公开(公告)日：2006-09-12
申请号：US10916618
申请日：2004-08-12
申请人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
发明人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
IPC分类号： G03G15/00
CPC分类号： G03G15/0121 , G03G15/065 , G03G2215/0634
摘要： A color image forming apparatus includes a developing unit to which a developing bias with an AC component superposed is applied, wherein the DC voltage of the developing bias is adjusted to set the detected density of a solid image at a specified value, the light amount of radiation for exposing an image area having a width of a few dots adjacent to the white paper is adjusted to set the detected density of an image developed under a peripheral electric field at a specified value, and the gradation density curve is regulated by alternately adjusting the DC voltage, the light amount of radiation for exposing the image area having a width of a few dots adjacent to the white paper, and the amplitude of the AC component until the detected density of a mesh point image having an area ratio from 60 to 80% falls within a specified range.
摘要翻译：彩色图像形成装置包括：显影单元，施加具有叠加的交流分量的显影偏压，其中调整显影偏压的直流电压，以将检测到的实心图像的浓度设定在规定值，光量调整用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射，以将在周围电场下显影的图像的检测浓度设定为规定值，并且通过交替调整色调浓度曲线来调节灰度浓度曲线 DC电压，用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射的光量以及AC分量的振幅直到具有60至80的面积比的网格图像的检测密度％落在指定范围内。

16. 发明申请

US20050063721A1 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US20050063721A1
公开(公告)日：2005-03-24
申请号：US10916618
申请日：2004-08-12
申请人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
发明人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
IPC分类号： G03G15/00 , G03G15/01 , G03G15/06 , G03G21/00 , G03G15/02 , G03G15/043
CPC分类号： G03G15/0121 , G03G15/065 , G03G2215/0634
摘要： A color image forming apparatus includes a developing unit to which a developing bias with an AC component superposed is applied, wherein the DC voltage of the developing bias is adjusted to set the detected density of a solid image at a specified value, the light amount of radiation for exposing an image area having a width of a few dots adjacent to the white paper is adjusted to set the detected density of an image developed under a peripheral electric field at a specified value, and the gradation density curve is regulated by alternately adjusting the DC voltage, the light amount of radiation for exposing the image area having a width of a few dots adjacent to the white paper, and the amplitude of the AC component until the detected density of a mesh point image having an area ratio from 60 to 80% falls within a specified range.
摘要翻译：彩色图像形成装置包括：显影单元，施加具有叠加的交流分量的显影偏压，其中调整显影偏压的直流电压，以将检测到的实心图像的浓度设定在规定值，光量调整用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射，以将在周围电场下显影的图像的检测浓度设定为规定值，并且通过交替调整色调浓度曲线来调节灰度浓度曲线 DC电压，用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射的光量以及AC分量的振幅直到具有60至80的面积比的网格图像的检测密度％落在指定范围内。

17. 发明授权

US06829449B2 Image forming apparatus with transfer bias inverting function 有权
标题翻译：具有转印偏压反转功能的图像形成装置
公开(公告)号：US06829449B2
公开(公告)日：2004-12-07
申请号：US10448292
申请日：2003-05-30
申请人： Hiroyoshi Matsumoto , Teruaki Mitsuya , Tsuneaki Kawanishi , Hisao Okada , Natsuki Kuribayashi , Masayoshi Ishii , Keisuke Kubota
发明人： Hiroyoshi Matsumoto , Teruaki Mitsuya , Tsuneaki Kawanishi , Hisao Okada , Natsuki Kuribayashi , Masayoshi Ishii , Keisuke Kubota
IPC分类号： G03G1516
CPC分类号： G03G15/16 , G03G2215/1614
摘要： A transfer member transporting section is disposed so as to bring a tip end of a transfer member into contact with a peripheral face of a transfer rotary member before the tip end of the transfer member enters a nip area. A bias power supply has a polarity inverting function of, during a period from a timing when the tip end of the transfer member is brought into contact with the transfer rotary member by the transfer member transporting section, to that when the tip end of the transfer member enters the nip area, applying a voltage of a polarity which is identical with that of a toner, to the transfer rotary member, and after the tip end of the transfer member enters the nip area, applying a voltage of a polarity which is opposite to that of the toner, to the transfer rotary member.
摘要翻译：传送部件传送部分设置成使传送部件的前端在转印部件的前端进入辊隙区域之前与转印旋转部件的周面接触。偏置电源具有极性反转功能，在转印部件的前端通过转印部件输送部与转印旋转部件接触的时刻的期间为转印的前端构件进入夹持区域，将与调色剂相同的极性电压施加到转印旋转构件，并且在转印构件的末端进入夹持区域之后，施加相反极性的电压转印到转印旋转部件上。

18. 发明申请

US20070212085A1 Fixing device and electro-photographic recording apparatus using the same 失效
标题翻译：固定装置和使用其的电子照相记录装置
公开(公告)号：US20070212085A1
公开(公告)日：2007-09-13
申请号：US11703724
申请日：2007-02-08
申请人： Teruaki Mitsuya , Takashi Suzuki
发明人： Teruaki Mitsuya , Takashi Suzuki
IPC分类号： G03G15/00 , G03G15/20
CPC分类号： G03G15/5029 , G03G15/2032
摘要： An axis-to-axis distance between a heating roller and a back-up roller is expanded beforehand in inserting a thick paper to prevent a rush/exhaust impact when fixing the thick paper without changing a condition of pressing mechanism.
摘要翻译：在插入厚纸时预先扩大加热辊和支撑辊之间的轴线到轴的距离，以防止在固定厚纸时产生冲击/排出冲击而不改变按压机构的状态。

19. 发明授权

US5508138A Fixing device for electrophotography and electrophotographic apparatus incorporating the fixing device 失效
公开(公告)号：US5508138A
公开(公告)日：1996-04-16
申请号：US313801
申请日：1994-09-28
申请人： Ryuuichi Shimizu , Tsuneaki Kawanishi , Toshiya Satoh , Teruaki Mitsuya , Takashi Suzuki
发明人： Ryuuichi Shimizu , Tsuneaki Kawanishi , Toshiya Satoh , Teruaki Mitsuya , Takashi Suzuki
IPC分类号： G03G9/087 , G03G15/20 , G03G13/20
CPC分类号： G03G15/2064 , G03G15/2053 , G03G15/2057 , G03G2215/2016 , G03G2215/2035 , G03G2215/2038
摘要： Image fixing device for use in electrophotographic apparatus, capable of suppressing gloss of fixed toner image, thus stably producing images of high quality and high level of fixing intensity over a long period of time. The fixing device has a fixing roller and a pressing roller which are contacted with each other and rotate to form therebetween a nip through which a paper supporting unfixed toner image is passed to have the toner image fixed to the paper. The fixing roller has a cylindrical core having fine irregularities formed on its surface and a surface layer made of a resin. The surface of the cylindrical core has a greater elastic modulus than that of the surface layer.

20. 发明授权

US5253025A Apparatus for fixing a toner image, fixing method and electrophotographic recording equipment 失效
标题翻译：用于固定调色剂图像的装置，定影方法和电子照相记录设备
公开(公告)号：US5253025A
公开(公告)日：1993-10-12
申请号：US796013
申请日：1991-11-22
申请人： Teruaki Mitsuya , Takashi Suzuki , Kazuo Uno
发明人： Teruaki Mitsuya , Takashi Suzuki , Kazuo Uno
IPC分类号： G03G15/00 , G03G13/20 , G03G13/26 , G03G15/20 , G03G15/22 , G03G21/00 , G03G21/10
CPC分类号： G03G15/2064 , G03G15/2025
摘要： An apparatus fixes a toner image formed on a recording medium and has a fixing roller which is rotated. The fixing roller is heated and the toner image is fixed on the recording medium being in pressed contact with said fixing roller. Offset toner particles formed on the fixing roller are decomposed into particles being too small to be perceived as a picture by an offset toner decomposing device before such large particles to be perceived as a picture are formed, and the small offset toner particles are stuck onto and removed by the recording medium. Preferably, the offset toner decomposing device is a brush roller which is rotated relative to the rotation of the fixing roller such that the brush roller and the fixing roller have equal peripheral speeds. The amount of offset toner being formed is decreased by reducing the creation of offset toner particles on the fixing roller by decreasing a torque fluctuation of a drive motor of the fixing roller.
摘要翻译：一种装置固定形成在记录介质上的调色剂图像，并具有旋转的定影辊。定影辊被加热，并且调色剂图像被固定在与所述定影辊压接的记录介质上。形成在定影辊上的偏移调色剂颗粒被分解成太小的颗粒，不能被形成为被感知为图像的大颗粒之前由偏移调色剂分解装置感知为图像，并且小的胶印调色剂颗粒被粘附到由记录介质去除。优选地，偏移调色剂分解装置是相对于定影辊的旋转而旋转的刷辊，使得刷辊和定影辊具有相等的圆周速度。通过减少定影辊的驱动电机的转矩波动来减少定影辊上的胶印调色剂颗粒的产生，从而减少形成的胶版调色剂的量。

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