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1. 发明授权

US10042294B2 Separation device, fixing device, and image forming apparatus 有权
公开(公告)号：US10042294B2
公开(公告)日：2018-08-07
申请号：US15410260
申请日：2017-01-19
申请人： Seiji Saitoh , Yohhei Watanabe , Fumihiro Hirose , Naoto Suzuki , Takashi Sakamaki
发明人： Seiji Saitoh , Yohhei Watanabe , Fumihiro Hirose , Naoto Suzuki , Takashi Sakamaki
IPC分类号： G03G15/20
摘要： A separation device includes a separator that separates a recording medium from a rotator and a plurality of recesses disposed on a conveyance path side face of the separator over which the recording medium is conveyed in a recess span in a recording medium conveyance direction and at least in a conveyance span where the recording medium is conveyed. The plurality of recesses includes a first recess extending in a first extension line that is oblique relative to the recording medium conveyance direction and a second recess being adjacent to the first recess in a direction perpendicular to the recording medium conveyance direction. The second recess extends in a second extension line that is oblique relative to the recording medium conveyance direction and overlaps the first extension line of the first recess in the direction perpendicular to the recording medium conveyance direction to define an overlap span.

2. 发明授权

US10234798B2 Fixing device and image forming apparatus incorporating same 有权
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.

3. 发明申请

US20190018348A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
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.

4. 发明授权

US09494904B2 Separation device, fixing device, and image forming apparatus 有权
标题翻译：分离装置，定影装置和成像装置
公开(公告)号：US09494904B2
公开(公告)日：2016-11-15
申请号：US14885299
申请日：2015-10-16
申请人： Yohhei Watanabe , Takashi Sakamaki , Masateru Ujiie , Naoto Suzuki , Fumihiro Hirose
发明人： Yohhei Watanabe , Takashi Sakamaki , Masateru Ujiie , Naoto Suzuki , Fumihiro Hirose
IPC分类号： G03G15/20
CPC分类号： G03G15/2085 , G03G15/2028
摘要： A separation device separates a recording medium ejected from a fixing nip formed between a first rotator and a second rotator from the first rotator. The separation device includes a separator including a front end disposed opposite the fixing nip and the recording medium and a plurality of recesses disposed on the front end of the separator at least in a conveyance span on the separator where the recording medium is conveyed. The plurality of recesses includes a first recess extending in a first extension line that is oblique relative to a recording medium conveyance direction and a second recess adjacent to the first recess and extending in a second extension line that is oblique relative to the recording medium conveyance direction. The second extension line overlaps the first extension line in a direction perpendicular to the recording medium conveyance direction to define an overlap span.
摘要翻译：分离装置将形成在第一旋转体和第二旋转体之间的定影辊隙排出的记录介质从第一旋转体分离。分离装置包括分离器，其包括与定影辊隙和记录介质相对设置的前端，以及至少在传送跨越记录介质的分离器上的输送跨度中的多个凹槽。所述多个凹部包括在相对于记录介质传送方向倾斜的第一延伸线中延伸的第一凹部和与所述第一凹部相邻的第二凹部，并且在相对于所述记录介质传送方向倾斜的第二延长线中延伸。第二延伸线在垂直于记录介质输送方向的方向上与第一延伸线重叠以限定重叠跨度。

5. 发明授权

US10488796B2 Fixing device controller, image forming apparatus, fixing device control method, and non-transitory computer-readable recording medium storing fixing device control program 有权
公开(公告)号：US10488796B2
公开(公告)日：2019-11-26
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
CPC分类号： G03G15/2053 , G03G15/1615 , G03G15/2017 , G03G15/2039
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.

6. 发明申请

US20190011864A1 FIXING DEVICE CONTROLLER, IMAGE FORMING APPARATUS, FIXING DEVICE CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING FIXING DEVICE CONTROL PROGRAM 审中-公开
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.

7. 发明授权

US10191423B2 Image forming apparatus including a fixing device 有权
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.

8. 发明申请

US20170357198A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
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.

9. 发明授权

US09568864B2 Fixing device and image forming apparatus 有权
标题翻译：固定装置和成像装置
公开(公告)号：US09568864B2
公开(公告)日：2017-02-14
申请号：US14993565
申请日：2016-01-12
申请人： Naoto Suzuki , Yohhei Watanabe , Takashi Sakamaki , Masateru Ujiie
发明人： Naoto Suzuki , Yohhei Watanabe , Takashi Sakamaki , Masateru Ujiie
IPC分类号： G03G15/20
CPC分类号： G03G15/2025
摘要： A fixing device includes a fixing rotator, a pressing rotator, an oil applicator, a first adjuster, a surface modifier, a second adjuster, and a processor. The fixing rotator contacts a recording medium bearing a toner image. The pressing rotator forms a fixing nip with the fixing rotator. The oil applicator is pressed against at least one of applied members of the fixing rotator and pressing rotator. The first adjuster adjusts contact/separation of the oil applicator with respect to the applied member. The surface modifier contacts the fixing rotator to modify a surface thereof. The second adjuster adjusts contact/separation of the surface modifier with respect to the fixing rotator. The processor allows the surface modifier to modify the fixing rotator surface after the oil applicator contacts the applied member, and the oil applicator to separate from the applied member after the surface modifier is separated from the fixing rotator.
摘要翻译：定影装置包括固定旋转器，按压旋转器，油涂布器，第一调节器，表面改性剂，第二调节器和处理器。定影旋转器接触带有调色剂图像的记录介质。按压旋转体与定影旋转体形成定影辊隙。油涂敷器被压在固定旋转器和按压旋转器的施加部件中的至少一个上。第一调节器调节涂油器相对于所施加的构件的接触/分离。表面改性剂接触固定旋转体以改变其表面。第二调节器调节表面改性剂相对于固定旋转器的接触/分离。处理器允许表面改性剂在涂油器接触所施加的构件之后修改固定旋转体表面，并且在表面改性剂与固定旋转体分离之后，油涂布器与施加的构件分离。

10. 发明授权

US10162294B2 Fixing device and image forming apparatus to adjust rotational speed of rotator due to thermal expansion 有权
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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