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.

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.

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.

公开(公告)号：US20200033777A1

公开(公告)日：2020-01-30

申请号：US16419068

申请日：2019-05-22

申请人： Ippei FUJIMOTO ,  Hiroyuki SHIMADA ,  Yoshiki YAMAGUCHI ,  Takashi SETO ,  Takayuki SEKI

发明人： Ippei FUJIMOTO ,  Hiroyuki SHIMADA ,  Yoshiki YAMAGUCHI ,  Takashi SETO ,  Takayuki SEKI

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator and a pressure rotator that is disposed opposite the fixing rotator. A nip former is disposed inside a loop formed by the fixing rotator and disposed opposite the pressure rotator via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The fixing rotator slides over the nip former. A flange supports the fixing rotator at both lateral ends of the fixing rotator in a longitudinal direction of the fixing rotator. The nip former includes a base and a thermal conductor that has a thermal conductivity greater than a thermal conductivity of the base. The base is greater than the thermal conductor in the longitudinal direction of the fixing rotator. The base includes a groove that is disposed outboard at least from the thermal conductor in the longitudinal direction of the fixing rotator.

公开(公告)号：US20190286025A1

公开(公告)日：2019-09-19

申请号：US16239948

申请日：2019-01-04

申请人： Yoshiki YAMAGUCHI ,  lppei FUJIMOTO ,  Hiroyuki SHIMADA ,  Takayuki SEKI ,  Takashi SETO ,  Yoshiyuki FUKUDA ,  Hiroshi YOSHINAGA

发明人： Yoshiki YAMAGUCHI ,  lppei FUJIMOTO ,  Hiroyuki SHIMADA ,  Takayuki SEKI ,  Takashi SETO ,  Yoshiyuki FUKUDA ,  Hiroshi YOSHINAGA

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator that is flexible, endless, and rotatable. A heater heats the fixing rotator. A pressure rotator is disposed opposite the fixing rotator. A nip former defines a fixing nip between the fixing rotator and the pressure rotator. A support supports the nip former. The nip former includes a back face that contacts the support and has a nonlinear shape in a longitudinal direction of the nip former.

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.

公开(公告)号：US20200341419A1

公开(公告)日：2020-10-29

申请号：US16845756

申请日：2020-04-10

申请人： Hiroyuki SHIMADA ,  Hiroshi YOSHINAGA ,  Hitoshi FUJIWARA

发明人： Hiroyuki SHIMADA ,  Hiroshi YOSHINAGA ,  Hitoshi FUJIWARA

IPC分类号： G03G15/20 ,  G03G21/16

摘要： A fixing device includes a rotator that rotates and a fixing device cover. The fixing device cover includes an interior face that is disposed opposite the rotator, a first aperture that is disposed opposite the rotator, and a recess that surrounds the first aperture and extends in a gravity direction. A frame is interposed between the interior face of the fixing device cover and the rotator. The frame includes a second aperture that is disposed opposite the rotator and the first aperture. A rib is mounted on the frame and extends from the second aperture toward the interior face of the fixing device cover.

公开(公告)号：US20240319640A1

公开(公告)日：2024-09-26

申请号：US18603301

申请日：2024-03-13

申请人： Toshiyuki KABATA ,  Takayuki ANDOH ,  Masahiro SAMEI ,  Kota SHIODERA ,  Hiroshi YOSHINAGA ,  Tomoyuki NISHIKAWA ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Arinobu YOSHIURA

发明人： Toshiyuki KABATA ,  Takayuki ANDOH ,  Masahiro SAMEI ,  Kota SHIODERA ,  Hiroshi YOSHINAGA ,  Tomoyuki NISHIKAWA ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Arinobu YOSHIURA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G15/2064 ,  G03G2215/2025

摘要： A heating device includes a rotator having an internal space, a heater heating the rotator, lubricant applied to the rotator, a rotator support supporting the rotator, and a cover. The rotator support has a first opening communicating with the internal space of the rotator, penetrating through the rotator support, and extending in the longitudinal direction. The cover covers the first opening and has a face facing the first opening and a second opening communicating with the internal space of the rotator and an exterior of the cover. The cover maintains a temperature of the face of the cover at 40° C. or higher.

公开(公告)号：US20240319642A1

公开(公告)日：2024-09-26

申请号：US18607588

申请日：2024-03-18

申请人： Masahiro SAMEI ,  Takayuki ANDOH ,  Kota SHIODERA ,  Hiroshi YOSHINAGA ,  Toshiyuki KABATA ,  Tomoyuki NISHIKAWA ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Arinobu YOSHIURA

发明人： Masahiro SAMEI ,  Takayuki ANDOH ,  Kota SHIODERA ,  Hiroshi YOSHINAGA ,  Toshiyuki KABATA ,  Tomoyuki NISHIKAWA ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Arinobu YOSHIURA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064

摘要： A heating device includes a rotator, a heater, lubricant, a rotator support, and a cover. The rotator has an internal space inside a loop of the rotator. The rotator has an internal space inside a loop of the rotator. The heater heats the rotator. The lubricant is applied to an inner circumferential surface of the rotator. The rotator support supports an end of the rotator in a longitudinal direction of the rotator. The rotator support has a first opening communicating with the internal space of the rotator and penetrating through the rotator support to extend in the longitudinal direction. The cover covers the first opening and has a second opening communicating between the internal space of the rotator and an external space outside the cover.

公开(公告)号：US20230288855A1

公开(公告)日：2023-09-14

申请号：US18151091

申请日：2023-01-06

申请人： Hiroyuki SHIMADA ,  Tomoya Adachi ,  Yukimichi Someya ,  Yuusuke Furuichi

发明人： Hiroyuki SHIMADA ,  Tomoya Adachi ,  Yukimichi Someya ,  Yuusuke Furuichi

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/2064 ,  G03G15/2053 ,  G03G15/5004 ,  G03G2215/2025

摘要： A nip forming device includes an endless film and a pressure rotator that presses against a heater via the endless film. A driver drives and rotates the pressure rotator to cause the pressure rotator to drive and rotate the endless film. A controller controls the driver to drive and rotate the pressure rotator, based on a temperature of the pressure rotator, that is detected by a detector, in a forward direction to convey a conveyed object and to interrupt forward rotation of the pressure rotator. In response to a determination that the temperature of the pressure rotator is higher than a predetermined temperature when a job of the nip forming device is finished, the controller controls the driver to drive and rotate the pressure rotator for a predetermined time in a backward direction opposite to the forward direction and to interrupt backward rotation of the pressure rotator.