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51. 发明申请

US20090148204A1 FIXING DEVICE AND IMAGE-FORMING APPARATUS COMPRISING THE SAME 有权
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：US20090148204A1
公开(公告)日：2009-06-11
申请号：US12326467
申请日：2008-12-02
申请人： Hiroshi YOSHINAGA , Masanao EHARA , Akira SHINSHI , Naoki IWAYA , Yoshiki YAMAGUCHI
发明人： Hiroshi YOSHINAGA , Masanao EHARA , Akira SHINSHI , Naoki IWAYA , Yoshiki YAMAGUCHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2035
摘要： A fixing device and image-forming apparatus, which provide required glossiness and paper adaptability, and, in addition, feature good operability and excellent durability while achieving optimal pressure-applying force for a variety of requirements, having: a pressure-applying lever; a pressure-releasing lever; a locking member, the one end of which is rotationally attached to the pressure-releasing lever; and an elastic member, which pulls the locking member in a locking direction. The configuration is such that the rotation of the pressure-releasing lever displaces the location of the locking member, thereby enabling switching between a pressure-applying position, in which a fixing member presses against another fixing member, and a pressure-releasing position, in which the one fixing member moves away from the other fixing member, and in the pressure-applying position, the pressure-applying lever and the locking member, which are fastened together at one end of the pressure-applying lever opposite a rotation central shaft, are pulled in a locking direction by the elastic member, and the gripping pressure on a piece of paper is varied by the pair of fixing members.
摘要翻译：提供所需的光泽度和纸张适应性的定影装置和图像形成装置，另外，具有良好的可操作性和优异的耐久性，同时为各种要求实现最佳的施加压力，具有：施压杆; 压力释放杆; 锁定构件，其一端旋转地附接到压力释放杆; 以及将锁定构件沿锁定方向拉动的弹性构件。该配置使得释压杆的旋转移动锁定构件的位置，从而能够在固定构件压靠另一固定构件的压力施加位置与压力释放位置之间切换，一个固定构件从另一个固定构件移动，并且在施压位置，压力施加杆和锁定构件在压力施加杆的与旋转中心轴相对的一端处紧固在一起，通过弹性构件沿锁定方向被拉动，并且一张纸上的夹持压力由一对固定构件变化。

52. 发明申请

US20180284669A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180284669A1
公开(公告)日：2018-10-04
申请号：US15924631
申请日：2018-03-19
申请人： Ippei FUJIMOTO , Hiroshi YOSHINAGA , Kenji ISHII , Hiroyuki SHIMADA , Takashi SETO , Takayuki SEKI , Kazunari SAWADA
发明人： Ippei FUJIMOTO , Hiroshi YOSHINAGA , Kenji ISHII , Hiroyuki SHIMADA , Takashi SETO , Takayuki SEKI , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2039 , G03G15/2053 , G03G15/206
摘要： A fixing device includes a fixing rotator and a lateral end heater to heat a lateral end span of the fixing rotator in an axial direction thereof. A thermal conduction aid contacts the fixing rotator. A nip formation pad contacts the thermal conduction aid. A lateral end temperature detector detects a temperature of the fixing rotator in a lateral end detection span in the axial direction of the fixing rotator. The thermal conduction aid contacts the nip formation pad in a first span including the lateral end detection span in the axial direction of the fixing rotator with a first contact area. The thermal conduction aid contacts the nip formation pad in a second span disposed outboard from the first span in the axial direction of the fixing rotator with a second contact area smaller than the first contact area.

53. 发明申请

US20170176906A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20170176906A1
公开(公告)日：2017-06-22
申请号：US15375817
申请日：2016-12-12
申请人： Kazunari SAWADA , Kenji ISHII , Kazuhito KISHI , Takayuki SEKI , Ippei FUJIMOTO , Takashi SETO , Hiroshi YOSHINAGA , Misaki SHIMIZU
发明人： Kazunari SAWADA , Kenji ISHII , Kazuhito KISHI , Takayuki SEKI , Ippei FUJIMOTO , Takashi SETO , Hiroshi YOSHINAGA , Misaki SHIMIZU
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a flexible endless belt formed into a loop and having an inner circumferential surface, a heater to heat the endless belt, and a nip formation assembly disposed inside the loop formed by the endless belt. The nip formation assembly includes a pressure pad made of heat-resistant resin including a hollow filler, and a supplementary thermal conductor having a belt sliding-contact face over which the inner circumferential surface of the endless belt slides. The supplementary thermal conductor is interposed between the endless belt and the pressure pad to conduct heat from the heater in an axial direction of the endless belt. The fixing device further includes a pressure rotator to press against the nip formation assembly 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.

54. 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.

55. 发明申请

US20170185021A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20170185021A1
公开(公告)日：2017-06-29
申请号：US15378668
申请日：2016-12-14
申请人： Takayuki SEKI , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Misaki SHIMIZU , Kazunari SAWADA
发明人： Takayuki SEKI , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Misaki SHIMIZU , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/0132 , G03G2215/2035
摘要： A fixing device includes a fixing rotator and at least one heater, disposed opposite an inner circumferential surface of the fixing rotator, to heat the fixing rotator. The at least one heater includes a heat generator to generate heat. A lateral end heater is disposed at least at one lateral end of a nip formation pad in a longitudinal direction of the nip formation pad. The lateral end heater heats at least one lateral end of the fixing rotator in an axial direction of the fixing rotator. The lateral end heater includes a base, a resistor, mounted on the base, to generate heat, and an electrode coupled to the resistor to supply power to the resistor. The electrode is disposed outboard from the heat generator of the at least one heater in the axial direction of the fixing rotator.

56. 发明申请

US20170185009A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20170185009A1
公开(公告)日：2017-06-29
申请号：US15377234
申请日：2016-12-13
申请人： Hiroshi YOSHINAGA , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Takayuki SEKI , Ippei FUJIMOTO , Kazunari SAWADA
发明人： Hiroshi YOSHINAGA , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Takayuki SEKI , Ippei FUJIMOTO , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2007 , G03G15/2042 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes an endless belt, a first radiant heater including a first heat generator to heat the endless belt, and a second radiant heater including a second heat generator, disposed outboard from the first heat generator in an axial direction of the endless belt, to heat the endless belt. A nip formation pad includes a nip-side face disposed opposite the endless belt. A contact heater heats at least one lateral end of the endless belt in the axial direction of the endless belt. The contact heater includes a nip-side face disposed opposite the endless belt. A thermal conduction aid covers the nip-side face of the nip formation pad and the nip-side face of the contact heater and conducts heat applied to the endless belt in the axial direction of the endless belt.

57. 发明申请

US20160223963A1 FIXING DEVICE, IMAGE FORMING APPARATUS, AND FIXING METHOD 有权
标题翻译：固定装置，图像形成装置和固定方法
公开(公告)号：US20160223963A1
公开(公告)日：2016-08-04
申请号：US15010012
申请日：2016-01-29
申请人： Hiroshi YOSHINAGA , Kenji Ishii , Kazuhito Kishi , Takashi Seto , Takayuki Seki , Ippei Fujimoto , Kazunari Sawada , Susumu Matsusaka , Yasuhiko Ogino , Shohta Kobashigawa
发明人： Hiroshi YOSHINAGA , Kenji Ishii , Kazuhito Kishi , Takashi Seto , Takayuki Seki , Ippei Fujimoto , Kazunari Sawada , Susumu Matsusaka , Yasuhiko Ogino , Shohta Kobashigawa
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G15/205 , G03G2215/2035
摘要： A fixing device includes a fixing rotator and an opposed rotator pressed against the fixing rotator to form a fixing nip therebetween. A primary heater is disposed opposite the fixing rotator in a circumferential span of the fixing rotator other than the fixing nip in a circumferential direction of the fixing rotator to heat the fixing rotator. A heat shield is interposed between the primary heater and the fixing rotator and disposed outboard from at least a decreased size recording medium conveyance span of the fixing rotator spanning in an axial direction of the fixing rotator where a recording medium having a decreased size in the axial direction of the fixing rotator is conveyed. The heat shield shields the fixing rotator from the primary heater. A secondary heater is mounted on the heat shield to heat the fixing rotator.
摘要翻译：定影装置包括固定旋转器和压靠固定旋转器的相对旋转体，以在它们之间形成定影辊隙。在固定旋转器的圆周方向上，除了定影夹持部之外，在固定旋转体的周向跨度中，一次加热器与固定旋转体相对设置，以加热定影旋转体。隔热板设置在主加热器和定影旋转器之间，并且设置在定影旋转器的轴向方向上至少缩小尺寸的记录介质传送跨度的外侧，其中定影旋转器的轴向尺寸减小的记录介质传送定影旋转器的方向。隔热罩将固定旋转器从主加热器屏蔽。二次加热器安装在隔热罩上以加热定影旋转器。

58. 发明申请

US20180157198A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180157198A1
公开(公告)日：2018-06-07
申请号：US15804459
申请日：2017-11-06
申请人： Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Ippei FUJIMOTO , Hiroyuki SHIMADA , Kazunari SAWADA , Ryohei MATSUDA
发明人： Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Ippei FUJIMOTO , Hiroyuki SHIMADA , Kazunari SAWADA , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G15/2028 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a belt, a pressure rotator disposed opposite the belt, and a nip formation unit that forms a fixing nip between the belt and the pressure rotator. The nip formation unit includes a guide face disposed upstream from the fixing nip in a rotation direction of the belt and contoured to separate from the pressure rotator in a direction opposite the rotation direction of the belt. The guide face is adhered with a lubricant moved from an inner circumferential surface of the belt. The belt rotates in the rotation direction when an outer circumferential surface of the belt has a temperature lower than a fixing temperature at which the belt fixes a toner image on a recording medium. The belt rotating in the rotation direction brings the lubricant adhered to the guide face into contact with the belt.

59. 发明申请

US20180017910A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180017910A1
公开(公告)日：2018-01-18
申请号：US15627704
申请日：2017-06-20
申请人： Kazunari SAWADA , Ippei FUJIMOTO , Kenji ISHII , Takashi SETO , Hiroshi YOSHINAGA , Takayuki SEKI
发明人： Kazunari SAWADA , Ippei FUJIMOTO , Kenji ISHII , Takashi SETO , Hiroshi YOSHINAGA , Takayuki SEKI
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G15/2032 , G03G15/2053 , G03G2215/025 , G03G2215/2035
摘要： A fixing device includes a nip former including a first face to form a fixing nip, a second face being disposed upstream from the first face in a rotation direction of a rotator and defining a predetermined angle relative to the first face, and a bent portion coupling the first face to the second face. An inner circumferential surface of the rotator slides over the first face. A lateral end accumulation portion and a center accumulation portion are defined by the second face and the bent portion of the nip former and the inner circumferential surface of the rotator. The lateral end accumulation portion is accumulated with a lubricant in a first amount. The center accumulation portion is disposed inboard from the lateral end accumulation portion in an axial direction of the rotator and accumulated with the lubricant in a second amount greater than the first amount.

60. 发明申请

US20180173138A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180173138A1
公开(公告)日：2018-06-21
申请号：US15827085
申请日：2017-11-30
申请人： Takayuki SEKI , Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Kazunari SAWADA , Hiroyuki SHIMADA
发明人： Takayuki SEKI , Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Kazunari SAWADA , Hiroyuki SHIMADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G15/0189 , G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要： A fixing device includes a lateral end heater, disposed opposite a lateral end of an inner circumferential surface of a fixing rotator in an axial direction thereof, to heat the fixing rotator and a thermal conduction aid contacting the fixing rotator and the lateral end heater to conduct heat. The lateral end heater includes a power supply portion disposed outboard from a lateral end of the thermal conduction aid in a longitudinal direction thereof and disposed opposite the inner circumferential surface of the fixing rotator. The power supply portion includes an electrode. A cover covers the power supply portion and includes a cover face disposed opposite the inner circumferential surface of the fixing rotator. A height adjuster adjusts a height of the cover face of the cover and causes the cover face to define an identical plane with a fixing rotator side face of the thermal conduction aid.

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