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：US09239559B2

公开(公告)日：2016-01-19

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，以在其圆周方向上旋转并由热源部分加热，并且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。

公开(公告)号：US09146512B2

公开(公告)日：2015-09-29

申请号：US13761624

申请日：2013-02-07

申请人： Kazuya Saito ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

发明人： Kazuya Saito ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： When calculating an actual turn-on duty based on a required duty according to a feedback control, the actual turn-on duty is corrected using a correction table or a correction conversion formula such that a required turn-on duty and the actual turn-on duty coincide with each other. A fixing heater is controlled according to the corrected actual turn-on duty.

摘要翻译： 当根据反馈控制基于所需的占空比来计算实际接通占空比时，使用校正表或校正转换公式校正实际接通占空比，使得所需开启占空比和实际接通 职责相互重合。 固定加热器根据修正的实际接通功率进行控制。

公开(公告)号：US20140369703A1

公开(公告)日：2014-12-18

申请号：US14475254

申请日：2014-09-02

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

IPC分类号： G03G15/20 ,  G03G15/00

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.

摘要翻译： 图像形成装置包括定影装置。 定影装置包括可旋转环形固定构件，布置在固定构件内部的夹持形成构件，经由固定构件与压区形成构件接触的按压构件，以及构造成加热固定构件的加热源。 当在图像形成装置中包括的定影装置和其他装置中的至少一个中发生异常时，在停止排出单元的旋转驱动之前，固定构件的旋转停止，并且在停止之后，固定构件被控制 旋转

公开(公告)号：US20130209131A1

公开(公告)日：2013-08-15

申请号：US13763047

申请日：2013-02-08

申请人： Takeshi Uchitani ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Hiroshi Yoshinaga ,  Arinobu Yoshiura ,  Teppei Kawata ,  Takamasa Hase ,  Hajime Gotoh ,  Takuya Seshita ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Shuutaroh Yuasa ,  Akira Suzuki ,  Shinichi Namekata ,  Ryota Yamashina ,  Yasunori Ishigaya

发明人： Takeshi Uchitani ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Hiroshi Yoshinaga ,  Arinobu Yoshiura ,  Teppei Kawata ,  Takamasa Hase ,  Hajime Gotoh ,  Takuya Seshita ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Shuutaroh Yuasa ,  Akira Suzuki ,  Shinichi Namekata ,  Ryota Yamashina ,  Yasunori Ishigaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device capable of shifting to a sleep state includes a heat source; a rotatable fixing member that is partly heated by the heat source to heat an unfixed image carrying surface of a recording medium; a rotatable pressing member that is in pressure contact with the fixing member to form a nip portion between the pressing member and the fixing member; a rotation drive unit that directly or indirectly rotates the fixing member; a temperature detecting unit that detects a temperature of the fixing member; and a controller configured to prohibit the fixing device from shifting to the sleep state when the temperature of the fixing member in a region facing the heat source is equal to or more than a predetermined temperature T1 at a point when a predetermined time period t1 has elapsed from the stop of rotation drive of the rotation drive unit.

公开(公告)号：US20130209124A1

公开(公告)日：2013-08-15

申请号：US13716651

申请日：2012-12-17

申请人： Kazuya SAITO ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

发明人： Kazuya SAITO ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2007 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a heating device to heat an endless rotary body with radiant heat, a power source to supply power to the heating device, a first heat source to heat a region on the endless rotary body corresponding to a width of the small size sheet, and a second heat source to heat regions on the endless rotary body corresponding to both widthwise ends of the large size sheet outside the width of the small size sheet. The power source supplies power only to the first heat source when the small size sheet is printed and to both the first and second heat sources when the large size sheet is printed. The power source supplies more power to the first heat source when the small size sheet is printed than when the large size sheet is printed within a maximum power available to the fixing device.

摘要翻译： 定影装置包括：用辐射热加热环形旋转体的加热装置，向加热装置供电的电源;加热环形旋转体上对应于小尺寸片材宽度的区域的第一热源; 以及第二热源，用于对与所述小尺寸片材的宽度以外的所述大尺寸片材的宽度方向两端部对应的所述环形旋转体上的区域进行加热。 当打印小尺寸片材时，电源仅向第一热源供电，并且当打印大尺寸片材时，电源仅供给第一热源。 当打印小尺寸片材时，电源为第一热源提供更多的电力，而不是在定影装置可用的最大功率内打印大尺寸片材时。

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。