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公开(公告)号：US5640645A
公开(公告)日：1997-06-17
申请号：US358100
申请日：1994-12-16
CPC分类号： G03G15/0131 , G03G15/0121 , G03G15/0173
摘要： In an image forming apparatus, toner images of respective colors are sequentially formed on an image carrier. A primary image transfer unit sequentially transfers the toner images from the image carrier to an intermediate image transfer belt one above the other, thereby producing a composite color image on the belt. A secondary image transfer unit transfers the composite color image from the belt to a sheet or similar transfer material. When the belt makes a turn without image transfer, i.e., idles, an electric field output lower than an electric field output preselected for image formation is applied to the primary image transfer unit.
摘要翻译： 在图像形成装置中，各种颜色的调色剂图像依次形成在图像载体上。 原始图像转印单元将调色剂图像从图像载体顺序地转印到中间图像转印带之间，从而在带上产生复合彩色图像。 次级图像转印单元将复合彩色图像从带传送到片材或类似的转印材料。 当皮带转动没有图像转印，即空转时，低于预先为图像形成选择的电场输出的电场输出被施加到主图像转印单元。
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公开(公告)号：US09915901B2
公开(公告)日：2018-03-13
申请号：US15258040
申请日：2016-09-07
IPC分类号： G03G15/20
CPC分类号： G03G15/2085 , G03G15/2028
摘要： A separation device includes an endless belt, a rotary body, a separation supporter, and a transfer mechanism. The separation supporter presses against an inner circumferential surface of the endless belt downstream from an area of contact between the endless belt and the rotary body in a recording medium conveyance direction to curve the endless belt toward an outer circumferential surface side of the endless belt at a greater curvature than a curvature of the endless belt at the area of contact between the endless belt and the rotary body. The transfer mechanism switches the separation supporter between a first position and a second position farther from the area of contact between the endless belt and the rotary body than the first position.
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公开(公告)号：US09645535B2
公开(公告)日：2017-05-09
申请号：US14311473
申请日：2014-06-23
IPC分类号： G03G15/20
CPC分类号： G03G15/2042
摘要： A fixing device includes a rotational member configured to convey and heat a sheet-shaped recording medium, the rotational member including a first heating member and a second heating member provided in parallel to a rotational axis of the rotational member in an interior thereof, the first heating member including a first heat generation part, the second heating member including a second heat generation part and an auxiliary heat generation part adjacent to the second heat generation part, a common temperature sensor configured to sense a temperature of the first heating member and a temperature of the second heating member, and a control part configured to control a ratio of a rate of lighting of the first heating member and a rate of lighting of the second heating member based on the temperature of the first heating member and the temperature of the second heating member.
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公开(公告)号：US20130209121A1
公开(公告)日：2013-08-15
申请号：US13763040
申请日：2013-02-08
申请人： Takeshi Uchitani , Masahiko Satoh , Kenji Ishii , Tadashi Ogawa , Teppei Kawata , Arinobu Yoshiura , Toshihiko Shimokawa , Kensuke Yamaji , Takamasa Hase , Shuutaroh Yuasa , Masaaki Yoshikawa , Hiromasa Takagi , Takahiro Imada , Hajime Gotoh , Akira Suzuki , Takuya Seshita , Hiroshi Yoshinaga , Kazuya Saito , Shinichi Namekata , Takayuki Seki , Yuji Arai , Ryuuichi Mimbu , Yoshiki Yamaguchi , Shuntaroh Tamaki , Yutaka Ikebuchi
发明人： Takeshi Uchitani , Masahiko Satoh , Kenji Ishii , Tadashi Ogawa , Teppei Kawata , Arinobu Yoshiura , Toshihiko Shimokawa , Kensuke Yamaji , Takamasa Hase , Shuutaroh Yuasa , Masaaki Yoshikawa , Hiromasa Takagi , Takahiro Imada , Hajime Gotoh , Akira Suzuki , Takuya Seshita , Hiroshi Yoshinaga , Kazuya Saito , Shinichi Namekata , Takayuki Seki , Yuji Arai , Ryuuichi Mimbu , Yoshiki Yamaguchi , Shuntaroh Tamaki , Yutaka Ikebuchi
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2039 , G03G15/205 , G03G2215/2035
摘要： A fixing device includes a heat source; a fixing member looped into a generally cylindrical shape to rotate in a circumferential direction thereof and partially heated by the heat source and to heat a surface of a recording medium bearing an unfixed toner image to fix the unfixed toner image thereon in a fixing process; a rotary pressing member disposed facing the fixing member to form a nip therebetween, through which the recording medium is transported in a transport direction; and a rotation driver to rotate one of the fixing member and the pressing member. In a case in which the fixing member is halted for a reason other than the fixing process while power of the fixing device is on, electric power is not supplied to the heat source and the fixing member is rotated by a predetermined amount or more after the fixing member is halted.
摘要翻译： 定影装置包括热源; 固定构件环绕成大致圆筒形状，以在圆周方向上旋转并由热源部分加热，并加热承载未定影调色剂图像的记录介质的表面，以在定影过程中将未定影调色剂图像定影在其上; 旋转按压构件，其面向所述固定构件设置以在其间形成辊隙，所述记录介质通过所述辊隙沿输送方向输送; 以及旋转驱动器，用于旋转固定构件和按压构件之一。 在定影装置的电源接通时，除了定影处理之外固定构件被停止的情况下，不向热源供电，并且固定构件在 固定件停止。
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公开(公告)号：US07912392B2
公开(公告)日：2011-03-22
申请号：US12100068
申请日：2008-04-09
申请人： Hiroshi Yoshinaga , Shinichi Namekata , Toshiharu Hachisuka , Hiroyuki Kunii , Ippei Fujimoto , Yasunori Ishigaya
发明人： Hiroshi Yoshinaga , Shinichi Namekata , Toshiharu Hachisuka , Hiroyuki Kunii , Ippei Fujimoto , Yasunori Ishigaya
CPC分类号： G03G15/2064 , G03G15/6579 , G03G2215/00067 , G03G2215/00805 , G03G2215/2032 , G03G2215/2035
摘要： An image forming apparatus includes an image forming part, a fixer including a heating member and a pressure member, a reverse transport part to forward a recording medium transported from the fixer to the image forming part, a toner image sensor to detect presence of a toner image on the recording medium, and a controller. When a glossy image formation mode is selected and no toner image is detected on the recording medium, the image forming part does not form a toner image on the recording medium, the fixer performs a first heating and pressing process and transports the recording medium to the reverse transport part, the reverse transport part transports the recording medium to the image forming part, the image forming part forms a toner image on the recording medium transported from the reverse transport part, and the fixer performs a second heating and pressing process and fixes the toner image thereon.
摘要翻译： 图像形成装置包括图像形成部分，包括加热部件和加压部件的定影器，将从定影剂传送到图像形成部分的记录介质向前传送的反向传送部分，用于检测调色剂存在的调色剂图像传感器 记录介质上的图像，以及控制器。 当选择光泽图像形成模式并且在记录介质上未检测到调色剂图像时，图像形成部分在记录介质上不形成调色剂图像，定影剂进行第一加热和加压处理，并将记录介质传送到 反向传送部分，反向传送部分将记录介质传送到图像形成部分，图像形成部分在从反向传送部分传送的记录介质上形成调色剂图像，并且定影器进行第二加热和加压处理，并将 调色剂图像。
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6.发明申请Image forming apparatus, fixing apparatus, toner, and method of preparing toner 有权图像形成装置，定影装置，调色剂和调色剂的制备方法公开(公告)号：US20060165443A1
公开(公告)日：2006-07-27
申请号：US11337980
申请日：2006-01-24
申请人： Hiroshi Yoshinaga , Shinichi Namekata , Hiroyuki Shimada , Masanao Ehara , Hirofumi Ogawa , Tadashi Ogawa , Ippel Fujimoto
发明人： Hiroshi Yoshinaga , Shinichi Namekata , Hiroyuki Shimada , Masanao Ehara , Hirofumi Ogawa , Tadashi Ogawa , Ippel Fujimoto
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G9/0806 , G03G9/08755 , G03G9/08791 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G15/2028 , G03G15/2064 , G03G2215/2016 , G03G2215/2032 , G03G2215/2093
摘要： An image forming apparatus includes an image forming mechanism and a fixing mechanism. The fixing mechanism fixes a visible image formed by the image forming mechanism onto a recording sheet. The fixing mechanism includes a first roller, a second roller, a belt, a third roller, and an applicator. The second roller includes a first heater having a first heat capacity. The belt is looped over the first and second rollers. The third roller is arranged opposite to the first roller via the belt, includes a second heater having a heat capacity smaller than the first heat capacity of the first heater, applies a pressure to the belt and the first roller, and rotates in conjunction with a movement of the first roller via the belt. The applicator is arranged at a position in contact with the third roller and applies oil to a surface of the third roller.
摘要翻译： 图像形成装置包括图像形成机构和固定机构。 固定机构将由图像形成机构形成的可见图像固定在记录纸上。 固定机构包括第一辊，第二辊，带，第三辊和涂布器。 第二辊包括具有第一热容的第一加热器。 带子环绕在第一和第二辊子上。 第三辊经由带与第一辊相对布置，包括具有小于第一加热器的第一热容的热容量的第二加热器，对带和第一辊施加压力，并与 通过皮带移动第一个滚筒。 施加器布置在与第三辊接触的位置处并将油施加到第三辊的表面。
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公开(公告)号：US5083160A
公开(公告)日：1992-01-21
申请号：US626334
申请日：1990-12-13
申请人： Kohji Suzuki , Masao Masumura , Hajime Oyama , Shinichi Namekata
发明人： Kohji Suzuki , Masao Masumura , Hajime Oyama , Shinichi Namekata
CPC分类号： G03G15/5041 , G03G15/01 , G03G2215/00042
摘要： An image density control method and a color image forming apparatus for controlling the density of a multi-color image to be reproduced, having functions of forming for each color a first reference latent image, to be developed in a medium density, on a latent image carrying member, forming for each color a second reference latent image, to be developed in a low density, on the latent image carrying member, depositing toner of a color corresponding to each of the first and second reference latent images on respective of the first and second reference latent images, sensing the quantities of different by colored toners deposited on respective of the first and a second reference latent images for each color and controlling, at least one image forming condition in the formation of images of each color to correct the density of the medium toner density portion of the image for toner color on the basis of the sensed results.
摘要翻译： 一种用于控制要再现的多色图像的浓度的图像浓度控制方法和彩色图像形成装置，具有将要以中等密度显影的每种颜色的第一参考潜像形成在潜像上的功能 在所述潜像承载部件上形成要以低密度显影的第二参考潜像的每个颜色的第一和第二参考潜像的相应于第一和第二参考潜像中的第一和第二参考潜像的调色剂， 第二参考潜像，通过分别沉积在每个颜色的第一和第二参考潜像上的有色调色剂感测不同的量，并且控制在形成每种颜色的图像中的至少一个图像形成条件以校正 基于感测结果的调色剂用图像的中等调色剂浓度部分。
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公开(公告)号：US10191423B2
公开(公告)日：2019-01-29
申请号：US15708734
申请日：2017-09-19
申请人： Ryohhei Sugiyama , Hironori Yamaoka , Takashi Sakamaki , Tetsuo Tokuda , Akiyasu Amita , Shinichi Namekata , Yohhei Watanabe , Fumihiro Hirose , Teppei Kawata , Masateru Ujiie
发明人： Ryohhei Sugiyama , Hironori Yamaoka , Takashi Sakamaki , Tetsuo Tokuda , Akiyasu Amita , Shinichi Namekata , Yohhei Watanabe , Fumihiro Hirose , Teppei Kawata , Masateru Ujiie
IPC分类号： G03G15/20
摘要： An image forming apparatus includes a fixing belt stretched across a first roller and a second roller including an elastic layer. A pressure rotator presses against the second roller via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt. A recording medium bearing a toner image is conveyed through the fixing nip. A clearance detector detects a clearance between the first roller and the second roller. A mover moves the pressure rotator with respect to the second roller in a pressing direction in which the pressure rotator presses against the second roller via the fixing belt and a separation direction in which the pressure rotator separates from the second roller. A controller controls an amount of movement of the pressure rotator moved by the mover toward the second roller based on the clearance detected by the clearance detector.
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公开(公告)号：US10162294B2
公开(公告)日：2018-12-25
申请号：US15604260
申请日：2017-05-24
申请人： Shinichi Namekata , Naoto Suzuki , Yohhei Watanabe , Takashi Sakamaki , Teppei Kawata , Masateru Ujiie
发明人： Shinichi Namekata , Naoto Suzuki , Yohhei Watanabe , Takashi Sakamaki , Teppei Kawata , Masateru Ujiie
IPC分类号： G03G15/20
摘要： A fixing device includes an endless belt, a drive rotator, a driven rotator, a rotation detector, and circuitry. The drive rotator contacts and rotates the endless belt. The driven rotator contacts an inner circumferential surface of the endless belt. The rotation detector detects a rotational speed of the driven rotator. The circuitry is operatively connected to the rotation detector to control a rotational speed of the drive rotator based on the rotational speed of the driven rotator detected by the rotational detector. The circuitry changes the rotational speed of the drive rotator when a recording medium bearing a toner image is not conveyed over the endless belt.
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公开(公告)号：US09971289B2
公开(公告)日：2018-05-15
申请号：US15602720
申请日：2017-05-23
申请人： Takamasa Hase , Masahiko Satoh , Shinichi Namekata , Kenji Ishii , Takeshi Uchitani , Tadashi Ogawa , Teppei Kawata , Arinobu Yoshiura , Kazuya Saito , Toshihiko Shimokawa , Shuutaroh Yuasa , Kensuke Yamaji , Masaaki Yoshikawa , Hiroshi Yoshinaga , Hiromasa Takagi , Naoki Iwaya , Takuya Seshita , Takahiro Imada , Hajime Gotoh , Akira Suzuki
发明人： Takamasa Hase , Masahiko Satoh , Shinichi Namekata , Kenji Ishii , Takeshi Uchitani , Tadashi Ogawa , Teppei Kawata , Arinobu Yoshiura , Kazuya Saito , Toshihiko Shimokawa , Shuutaroh Yuasa , Kensuke Yamaji , Masaaki Yoshikawa , Hiroshi Yoshinaga , Hiromasa Takagi , Naoki Iwaya , Takuya Seshita , Takahiro Imada , Hajime Gotoh , Akira Suzuki
CPC分类号： G03G15/2028 , G03G15/2039 , G03G15/205 , G03G15/55
摘要： An image forming apparatus includes a fixing device. The fixing device includes a rotatable endless fixing member, a nip forming member arranged inside the fixing member, a pressing member in contact with the nip forming member via the fixing member, and a heating source configured to heat the fixing member. When an abnormality occurs in at least one of the fixing device and other devices included in the image forming apparatus, a rotation of the fixing member is stopped prior to stopping a rotation driving of a discharging unit and, after stopping, the fixing member is controlled to rotate.
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