公开(公告)号：US10234798B2

公开(公告)日：2019-03-19

申请号：US16020155

申请日：2018-06-27

申请人： Yohhei Watanabe ,  Naoto Suzuki ,  Shinichi Namekata ,  Akiyasu Amita ,  Takashi Sakamaki ,  Teppei Kawata ,  Masateru Ujiie ,  Fumihiro Hirose

发明人： Yohhei Watanabe ,  Naoto Suzuki ,  Shinichi Namekata ,  Akiyasu Amita ,  Takashi Sakamaki ,  Teppei Kawata ,  Masateru Ujiie ,  Fumihiro Hirose

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator, a pressure rotator, and a pressure assembly that forms a fixing nip therebetween and includes a first adjuster and a second adjuster. The first adjuster includes a pressure cam, a first biasing device, a first pressure lever that holds the pressure rotator, and a second pressure lever that moves with the pressure cam and presses against the first pressure lever via the first biasing device. The first adjuster adjusts a load of the first biasing device to adjust a pressure force from the pressure rotator to the fixing rotator. The second adjuster includes an adjustment screw is driven into the second pressure lever, and a retainer that retains an adjusted state between the adjustment screw and the first pressure lever. The second adjuster adjusts a holding position of the first pressure lever to hold the pressure rotator.

公开(公告)号：US20190018348A1

公开(公告)日：2019-01-17

申请号：US16020155

申请日：2018-06-27

申请人： Yohhei Watanabe ,  Naoto Suzuki ,  Shinichi Namekata ,  Akiyasu Amita ,  Takashi Sakamaki ,  Teppei Kawata ,  Masateru Ujiie ,  Fumihiro Hirose

发明人： Yohhei Watanabe ,  Naoto Suzuki ,  Shinichi Namekata ,  Akiyasu Amita ,  Takashi Sakamaki ,  Teppei Kawata ,  Masateru Ujiie ,  Fumihiro Hirose

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator, a pressure rotator, and a pressure assembly that forms a fixing nip therebetween and includes a first adjuster and a second adjuster. The first adjuster includes a pressure cam, a first biasing device, a first pressure lever that holds the pressure rotator, and a second pressure lever that moves with the pressure cam and presses against the first pressure lever via the first biasing device. The first adjuster adjusts a load of the first biasing device to adjust a pressure force from the pressure rotator to the fixing rotator. The second adjuster includes an adjustment screw is driven into the second pressure lever, and a retainer that retains an adjusted state between the adjustment screw and the first pressure lever. The second adjuster adjusts a holding position of the first pressure lever to hold the pressure rotator.

公开(公告)号：US09785101B2

公开(公告)日：2017-10-10

申请号：US15267461

申请日：2016-09-16

申请人： Masateru Ujiie ,  Naoto Suzuki ,  Shinichi Namekata ,  Takashi Sakamaki ,  Teppei Kawata

发明人： Masateru Ujiie ,  Naoto Suzuki ,  Shinichi Namekata ,  Takashi Sakamaki ,  Teppei Kawata

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2025 ,  G03G2215/0129 ,  G03G2215/2016 ,  G03G2215/2032

摘要： A fixing device includes a fixing rotator and a slider that slides over the fixing rotator. A cam presses the slider against the fixing rotator. The cam includes a cam rear disposed opposite a rear end of the fixing rotator in an axial direction thereof and a cam front disposed opposite a front end of the fixing rotator in the axial direction thereof. A controller rotates the cam to a first slide position where the cam rear presses the slider against the fixing rotator, a second slide position where the cam rear and the cam front press the slider against the fixing rotator, a third slide position where the cam front presses the slider against the fixing rotator, and an isolation position where the cam rear and the cam front do not press the slider against the fixing rotator.

公开(公告)号：US07509085B2

公开(公告)日：2009-03-24

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。

公开(公告)号：US5697031A

公开(公告)日：1997-12-09

申请号：US692779

申请日：1996-07-02

申请人： Takuro Kamiya ,  Shinichi Namekata

发明人： Takuro Kamiya ,  Shinichi Namekata

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G2215/0174

摘要： An apparatus having a photosensitive body and intermediate transfer body for successively transferring color toner images formed on the photosensitive body onto the intermediate transfer body to form an overlay transfer image which is transferred in batch onto transfer paper. Passage of a mark in a portion of the intermediate transfer body is detected by a mark detector in a passage area for the mark. A primary transfer device is provided in a primary transfer section of the appartus so as to contact the photosensitive body. An electrifying device is provided at a position of upstream in a rotating direction of the photosensitive body from the primary transfer device. A control device provides control such that in a standby state prior to starting the image forming, the distance from the mark detector to the downstream mark, viewed with respect to the direction of rotation of the intermediate transfer body, is always longer than a corresponding distance of the photosensitive body from a downstream position of the electrifying device with respect to the direction of rotation of the photosensitive body to the primary transfer section.

摘要翻译： 一种具有感光体和中间转印体的装置，用于将形成在感光体上的彩色调色剂图像连续地转印到中间转印体上，以形成一批分批转印到转印纸上的覆盖转印图像。 在中间转印体的一部分中的标记的通过由标记的通道区域中的标记检测器检测。 一次转印装置设置在配件的一次转印部分中，以便与感光体接触。 在一次转印装置的感光体的旋转方向上游的位置设有充电装置。 控制装置提供控制，使得在开始图像形成之前的待机状态下，从中间转印体的旋转方向观察的从标记检测器到下游标记的距离总是长于相应的距离 的感光体相对于感光体向一次转印部的旋转方向从充电装置的下游位置移动。

公开(公告)号：US5640645A

公开(公告)日：1997-06-17

申请号：US358100

申请日：1994-12-16

申请人： Shinichi Namekata ,  Katsuji Watabe ,  Yoshiyuki Kimura

发明人： Shinichi Namekata ,  Katsuji Watabe ,  Yoshiyuki Kimura

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/08 ,  G03G15/09 ,  G03G15/16 ,  G03G21/14 ,  G03G15/14

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。

公开(公告)号：US20190011864A1

公开(公告)日：2019-01-10

申请号：US16021060

申请日：2018-06-28

申请人： Teppei KAWATA ,  Shinichi Namekata ,  Akiyasu Amita ,  Masateru Ujiie ,  Yohhei Watanabe ,  Fumihiro Hirose ,  Takashi Sakamaki

发明人： Teppei KAWATA ,  Shinichi Namekata ,  Akiyasu Amita ,  Masateru Ujiie ,  Yohhei Watanabe ,  Fumihiro Hirose ,  Takashi Sakamaki

IPC分类号： G03G15/20 ,  G03G15/16

摘要： A fixing device controller includes a plurality of voltage detectors to detect voltages of a plurality of power sources for supplying power to a plurality of heaters to heat a fixing member of a fixing device that fixes a toner image on a recording medium and a heater controller to execute duty control to turn on the plurality of heaters. The heater controller corrects a duty of at least one of the plurality of heaters based on the voltages detected by the plurality of voltage detectors and rated output values of the plurality of heaters.

公开(公告)号：US20170357198A1

公开(公告)日：2017-12-14

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

CPC分类号： G03G15/2053 ,  G03G15/2028 ,  G03G15/206 ,  G03G2215/00413 ,  G03G2215/2032 ,  G03G2215/2045

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.

公开(公告)号：US08073352B2

公开(公告)日：2011-12-06

申请号：US12339777

申请日：2008-12-19

申请人： Hiroyuki Kunii ,  Ippei Fijimoto ,  Hiroshi Yoshinaga ,  Toshiharu Hachisuka ,  Yasunori Ishigaya ,  Shinichi Namekata

发明人： Hiroyuki Kunii ,  Ippei Fijimoto ,  Hiroshi Yoshinaga ,  Toshiharu Hachisuka ,  Yasunori Ishigaya ,  Shinichi Namekata

IPC分类号： G03G15/20

CPC分类号： G03G15/5004 ,  G03G15/2039 ,  G03G2215/00978

摘要： An image forming apparatus includes a fixing unit and a fixing process managing system. The fixing process managing system, including a mode switchover unit, controls a time mode and a temperature mode for heating a fixing member. In the time mode, the fixing unit is determined to be ready for a fixing process when a given time elapses after activation of the image forming apparatus. In the temperature mode, the fixing unit is determined to be ready for a fixing process when a temperature of the fixing member attains a given reference temperature after activation of the image forming apparatus. The mode switchover unit selects between the temperature mode and the time mode. The fixing process managing system selects the temperature mode instead of the time mode when a supply amount of electrical power to the fixing unit is determined to be below a required electrical power supply level.

摘要翻译： 图像形成装置包括定影单元和定影处理管理系统。 包括模式切换单元的定影处理管理系统控制用于加热定影构件的时间模式和温度模式。 在时间模式中，当激活图像形成装置之后经过给定时间时，确定定影单元准备好进行定影处理。 在温度模式中，当激活图像形成装置之后，当固定构件的温度达到给定的基准温度时，确定定影单元准备好进行定影处理。 模式切换单元在温度模式和时间模式之间进行选择。 当定影单元的电力供应量被确定为低于所需电力供应水平时，定影过程管理系统选择温度模式而不是时间模式。

公开(公告)号：US6163661A

公开(公告)日：2000-12-19

申请号：US205712

申请日：1998-12-04

申请人： Shinichi Namekata ,  Yuji Sawai ,  Toshiaki Motohashi ,  Katsuya Kawagoe

发明人： Shinichi Namekata ,  Yuji Sawai ,  Toshiaki Motohashi ,  Katsuya Kawagoe

IPC分类号： G03G15/14 ,  G03G15/16 ,  G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/1645 ,  G03G2215/00084

摘要： In an electrostatic image forming apparatus, including a corona discharger located so as to face an image carrier on which a toner image is to be formed. When a paper or similar recording medium is brought between the image carrier and the discharger, the discharger effects corona discharge at the rear of the recording medium so as to charge the medium to a polarity opposite to the polarity of the toner image. The toner image is then transferred from the image carrier to the recording medium. A polarity switcher allows a voltage of substantially the same polarity as the toner to be applied to a discharge wire included in the discharger, and environmental sensing device allows this voltage to be changed based on temperature and humidity conditions. The apparatus is free from defective discharge and defective image transfer ascribable to the deposition of free or isolated toner on the discharger.

摘要翻译： 在静电图像形成装置中，包括位于要形成调色剂图像的图像载体上的电晕放电器。 当纸张或类似的记录介质被带到图像载体和放电器之间时，放电器在记录介质的后部进行电晕放电，以将介质充电到与调色剂图像的极性相反的极性。 然后将调色剂图像从图像载体转印到记录介质。 极性切换器允许施加到包括在放电器中的放电线的调色剂基本上具有相同极性的电压，并且环境感测装置允许基于温度和湿度条件改变该电压。 该设备没有故障排放和故障图像传输归因于在放电器上沉积自由或隔离的调色剂。