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1. 发明申请

US20160274516A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20160274516A1
公开(公告)日：2016-09-22
申请号：US15070735
申请日：2016-03-15
申请人： Yoshiki YAMAGUCHI , Yoshio HATTORI , Haruyuki HONDA , Ryuuichi MIMBU , Toshihiko SHIMOKAWA , Yutaka IKEBUCHI , Yasunori ISHIGAYA , Kazuya SAITO , Keitaro SHOJI , Ryohei MATSUDA
发明人： Yoshiki YAMAGUCHI , Yoshio HATTORI , Haruyuki HONDA , Ryuuichi MIMBU , Toshihiko SHIMOKAWA , Yutaka IKEBUCHI , Yasunori ISHIGAYA , Kazuya SAITO , Keitaro SHOJI , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2028 , G03G15/6573 , G03G2215/00421 , G03G2215/2035
摘要： A fixing device includes an endless fixing belt; a pressure roller to contact the fixing belt; a nip forming member to press the pressure roller from the fixing belt; a nip portion formed between the fixing belt and the pressure roller; a heater to heat the fixing belt to fuse and fix toner onto a recording sheet in the nip portion; an auxiliary driven roller; an auxiliary drive roller to drive the driven roller; an auxiliary nip portion, formed between an outer circumferential surface of the auxiliary driven roller and an outer circumferential surface of the auxiliary drive roller, to nip the recording sheet after toner fixation conveyed from the nip portion; and an outlet guide member, disposed downstream of the auxiliary nip portion, to guide the recording sheet after toner fixation conveyed from the auxiliary nip portion, with the toner-fixed recording sheet surface bent in a concave shape.
摘要翻译：定影装置包括环形定影带; 与所述定影带接触的压力辊; 夹持形成构件，用于从定影带按压压力辊; 形成在所述定影带和所述加压辊之间的辊隙部; 加热器，用于加热定影带以将调色剂熔合并固定到辊隙部分中的记录片材上; 辅助从动辊; 用于驱动从动辊的辅助驱动辊; 形成在辅助从动辊的外周表面和辅助驱动辊的外圆周表面之间的辅助夹持部分，用于在从夹持部分输送的调色剂定影之后夹持记录纸; 以及布置在辅助夹持部分下游的出口引导件，用于在调色剂定影从辅助夹持部分输送之后引导记录纸，调色剂固定的记录纸张表面弯曲成凹形。

2. 发明申请

US20160378033A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：US20160378033A1
公开(公告)日：2016-12-29
申请号：US15160374
申请日：2016-05-20
申请人： Yasunori ISHIGAYA , Yutaka IKEBUCHI , Kazuya SAITO , Keitaro SHOJI , Ryohei MATSUDA , Hiromasa TAKAGI , Ryuuichi MIMBU , Toshihiko SHIMOKAWA
发明人： Yasunori ISHIGAYA , Yutaka IKEBUCHI , Kazuya SAITO , Keitaro SHOJI , Ryohei MATSUDA , Hiromasa TAKAGI , Ryuuichi MIMBU , Toshihiko SHIMOKAWA
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G2215/0132 , G03G2215/2035
摘要： A fixing device includes a rotatable endless belt formed into a loop and a heater disposed opposite the endless belt to heat the endless belt. A nip formation pad is disposed inside the loop formed by the endless belt. The nip formation pad includes a metallic thermal equalizer extending in an axial direction of the endless belt. A rotatable pressure rotator presses against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. The pressure rotator includes an increased tackiness portion disposed at a lateral end of the pressure rotator in an axial direction of the pressure rotator to transmit a driving force to the endless belt. The increased tackiness portion is disposed opposite the thermal equalizer of the nip formation pad.
摘要翻译：定影装置包括形成环的可旋转环形带和与环形带相对设置的加热环形带的加热器。辊隙形成垫设置在由环形带形成的环内。压区形成垫包括在环形带的轴向方向上延伸的金属热均衡器。可旋转的压力旋转器通过环形带压靠在辊隙形成垫上，以在环形带和压力旋转器之间形成定影辊隙，通过该固定辊隙，承载有调色剂图像的记录介质。压力旋转器包括在压力旋转器的轴向方向上设置在压力转子的侧端处的增加的粘性部分，以将驱动力传递到环形带。增加的粘性部分设置成与辊隙形成垫的热均衡器相对。

3. 发明申请

US20170205742A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170205742A1
公开(公告)日：2017-07-20
申请号：US15395410
申请日：2016-12-30
申请人： Keitaro SHOJI , Yasunori ISHIGAYA , Kazuya SAITO , Ryohei MATSUDA , Hiromasa TAKAGI , Ryuuichi MIMBU , Toshihiko SHIMOKAWA
发明人： Keitaro SHOJI , Yasunori ISHIGAYA , Kazuya SAITO , Ryohei MATSUDA , Hiromasa TAKAGI , Ryuuichi MIMBU , Toshihiko SHIMOKAWA
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053
摘要： A fixing device includes an endless fixing belt that is multilayered, an opposing rotator disposed opposite the fixing belt and pressed to the fixing belt to form a nip, a heater disposed inside the fixing belt, and a safety device including a contactless temperature sensor disposed outside the fixing belt and apart from an outer face of the fixing. The fixing belt is to rotate and thermally expand. The contactless temperature sensor detects a temperature of the fixing belt. The safety device stops heating by the heater when the temperature detected by the contactless temperature sensor is at or higher than a predetermined temperature. As the outer face of the fixing belt shifts outward in the radial direction due to thermal, a proportion of the outer face of the fixing belt in a viewing angle of the contactless temperature sensor increases.

4. 发明申请

US20170017182A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20170017182A1
公开(公告)日：2017-01-19
申请号：US15202859
申请日：2016-07-06
申请人： Kazuya SAITO , Yasunori ISHIGAYA , Yutaka IKEBUCHI , Keitaro SHOJI , Ryohei MATSUDA
发明人： Kazuya SAITO , Yasunori ISHIGAYA , Yutaka IKEBUCHI , Keitaro SHOJI , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042
摘要： A fixing device includes a primary heat generator and a secondary heat generator to heat an endless belt and a temperature detector, disposed opposite the secondary heat generator, to detect a temperature of the endless belt. The secondary heat generator includes an inboard edge and an outboard edge disposed outboard from the inboard edge in an axial direction of the endless belt. The secondary heat generator has an inboard length defined between a center of a detection span of the temperature detector and the inboard edge in the axial direction of the endless belt. The secondary heat generator further has an outboard length defined between the center of the detection span of the temperature detector and the outboard edge in the axial direction of the endless belt. The secondary heat generator defines a ratio of the outboard length to the inboard length that is greater than 7/3.
摘要翻译：固定装置包括：一次发热体和二次发热体，用于加热与二次发热体相对设置的环形带和温度检测器，以检测环形带的温度。二次发热器包括沿环形带的轴向方向设置在内侧边缘外侧的内侧边缘和外侧边缘。二次发热器具有限定在温度检测器的检测范围的中心和环形带的轴向方向上的内侧边缘之间的内侧长度。次级发热器还具有限定在温度检测器的检测范围的中心与环形带的轴向方向外侧边缘之间的外侧长度。二次发热器定义了外侧长度与内侧长度的比值大于7/3。

5. 发明申请

US20170010571A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：US20170010571A1
公开(公告)日：2017-01-12
申请号：US15194090
申请日：2016-06-27
申请人： Ryohei MATSUDA , Yutaka Ikebuchi , Yasunori Ishigaya , Kazuya Saito , Keitaro Shoji
发明人： Ryohei MATSUDA , Yutaka Ikebuchi , Yasunori Ishigaya , Kazuya Saito , Keitaro Shoji
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a primary heater and a secondary heater that heat a fixing rotator. The primary heater includes a primary major heat generation portion and a primary minor heat generation portion. The primary minor heat generation portion includes a major heat generator that generates an increased amount of heat and a minor heat generator that generates a decreased amount of heat smaller than the increased amount of heat generated by the major heat generator. The major heat generator has a width in an axial direction of the fixing rotator that is not smaller than 30 percent and not greater than 35 percent with respect to a width of the primary minor heat generation portion in the axial direction of the fixing rotator. A temperature detector is disposed opposite the minor heat generator of the primary heater to detect a temperature of the fixing rotator.
摘要翻译：定影装置包括加热定影旋转器的主加热器和二次加热器。主加热器包括主要主要发热部分和初级次要发热部分。主要次要发热部分包括产生增加的热量的主要发热体和产生比主要发热体产生的增加的热量小的热量减少的次要发热体。主发热体的固定旋转体的轴向宽度相对于初级次发热部在固定旋转体的轴向上的宽度为30％以上且35％以下。温度检测器设置成与初级加热器的次要发热体相对，以检测定影旋转器的温度。

6. 发明申请

US20220171315A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220171315A1
公开(公告)日：2022-06-02
申请号：US17534456
申请日：2021-11-24
申请人： Ryohei MATSUDA , Ryuuichi MIMBU , Toshihiko SHIMOKAWA , Satoshi KUNO , Kentaro YAMANAKA
发明人： Ryohei MATSUDA , Ryuuichi MIMBU , Toshihiko SHIMOKAWA , Satoshi KUNO , Kentaro YAMANAKA
IPC分类号： G03G15/20 , G03G15/00
摘要： A fixing device includes a fixing rotator over which a recording medium bearing an image is conveyed. A first heater heats the fixing rotator and generates heat evenly in a maximum conveyance span where the recording medium having a maximum width in a width direction of the recording medium is conveyed. The maximum width is available for the fixing rotator. A second heater heats the fixing rotator and generates heat in the maximum conveyance span. The second heater includes a first portion that generates heat in a first heat generation amount and a second portion that generates heat in a second heat generation amount that is greater than the first heat generation amount of the first portion.

7. 发明申请

US20190243291A1 FIXING METHOD, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20190243291A1
公开(公告)日：2019-08-08
申请号：US16266149
申请日：2019-02-04
申请人： Ryohei MATSUDA , Takamasa Hase , Daisuke Inoue , Teppei Kawata , Akio Takei
发明人： Ryohei MATSUDA , Takamasa Hase , Daisuke Inoue , Teppei Kawata , Akio Takei
IPC分类号： G03G15/20 , G03G9/087
摘要： A fixing method is provided including the step of fixing a toner on a recording medium with a fixing device. The toner comprises a binder resin, a colorant, and a release agent, and has a release agent amount indicator of from 0.01 to 0.20. The release agent amount indicator is represented by a ratio (P2850/P828) of an intensity (P2850) at a wave number of 2,850 cm−1 to an intensity (P828) at a wave number of 828 cm−1 of the toner measured by a Fourier transform infrared spectroscopy attenuated total reflection method. The fixing device includes a fixing rotator driven to rotate by a driving source, a pressure rotator driven to rotate by rotation of the fixing rotator, a fixing belt interposed between the fixing rotator and the pressure rotator, and a heater to heat the fixing belt.

8. 发明申请

US20180335733A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING FIXING DEVICE 审中-公开
公开(公告)号：US20180335733A1
公开(公告)日：2018-11-22
申请号：US15980123
申请日：2018-05-15
申请人： Ryohei MATSUDA , Ippei FUJIMOTO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Kazunari SAWADA
发明人： Ryohei MATSUDA , Ippei FUJIMOTO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要： A fixing device includes an endless fixing belt, a heat source, an opposed member, a nip formation pad, and a heat conductive member. The nip formation pad includes an abutment region, a first opening portion, and second opening portions. The abutment region includes a plurality of abutment surfaces abutting a first face of the heat conductive member. The first opening portion is disposed at a center of the abutment region to form a non-contact area at which the nip formation pad does not contact the heat conductive member. The abutment region includes an upstream abutment area and a downstream abutment area from the first opening portion in a direction of conveyance of a recording medium. The second opening portions divide at least one area of the upstream abutment area and the downstream abutment area into a plurality of portions in a longitudinal direction of the nip formation pad.

9. 发明申请

US20200285180A1 FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200285180A1
公开(公告)日：2020-09-10
申请号：US16794976
申请日：2020-02-19
申请人： Ryohei MATSUDA , Hiroyuki SHIMADA
发明人： Ryohei MATSUDA , Hiroyuki SHIMADA
IPC分类号： G03G15/20
摘要： A fixing device that includes a rotatable endless fixing member, a fixing heat source which heats the fixing member, a pressure member provided on the outside of the fixing member and facing the fixing member, a nip forming member provided inside the fixing member and forming a fixing nip between the fixing member and the pressure member, a nip forming support member for supporting the nip forming member, a high-thermal-conductive member provided between the fixing member and the nip forming member, an adhesive provided between the high-thermal-conductive member and the nip forming member. The thermal conductivity of the adhesive is larger than the thermal conductivity of the nip forming member and lower than the thermal conductivity of the high-thermal-conductive member.

10. 发明申请

US20170255147A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20170255147A1
公开(公告)日：2017-09-07
申请号：US15440179
申请日：2017-02-23
申请人： Takayuki SEKI , Kenji ISHll , Hiroshi YOSHINAGA , Takashi SETO , lppei FUJIMOTO , Kazunari SAWADA , Ryohei MATSUDA
发明人： Takayuki SEKI , Kenji ISHll , Hiroshi YOSHINAGA , Takashi SETO , lppei FUJIMOTO , Kazunari SAWADA , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2039 , G03G15/2042 , G03G15/2046 , G03G15/2057 , G03G2215/0132 , G03G2215/2035
摘要： A fixing device includes a fixing rotator, an opposed rotator disposed opposite the fixing rotator, a pressure pad, a lateral end heater, and a thermal conduction aid. The pressure pad presses against the opposed rotator via the fixing rotator to form a fixing nip between the fixing rotator and the opposed rotator. The lateral end heater is disposed on the pressure pad to heat a lateral end of the fixing rotator in the axial direction of the fixing rotator. The thermal conduction aid is interposed between the pressure pad and the fixing rotator to decrease a temperature gradient of the fixing rotator in an axial direction of the fixing rotator. The pressure pad includes a nip-side face disposed opposite the thermal conduction aid. The lateral end heater includes a nip-side face being disposed opposite the thermal conduction aid and projecting beyond the nip-side face of the pressure pad.

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