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公开(公告)号：US11906916B2
公开(公告)日：2024-02-20
申请号：US17739509
申请日：2022-05-09
申请人： Yuusuke Furuichi , Hiroshi Seo , Tomoya Adachi , Daisuke Hirano
发明人： Yuusuke Furuichi , Hiroshi Seo , Tomoya Adachi , Daisuke Hirano
IPC分类号： G03G15/20
CPC分类号： G03G15/2053
摘要： A heating device includes a planar heater, a rotator, a pressure rotator, a heating device frame, a resistor, and a discharger. The pressure rotator has a conductive outer surface and presses the rotator. The heating device frame holds the pressure rotator. The discharger is in contact with the conductive outer surface of the pressure rotator and grounded via the resistor and the heating device frame.
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公开(公告)号：US20220091558A1
公开(公告)日：2022-03-24
申请号：US17480154
申请日：2021-09-21
申请人： Kei SAITO , Tomoya ADACHI , Yuusuke FURUICHI
发明人： Kei SAITO , Tomoya ADACHI , Yuusuke FURUICHI
IPC分类号： G03G21/20
摘要： An image forming apparatus includes a heating device including a heater, a developing device, and an airflow generation device. The heater includes a base, a heat generator, an electrode portion, and conductive portions. The conductive portions are disposed on one side and another side in a longitudinal direction in a heat generation region and spaced apart in a lateral direction intersecting the longitudinal direction. A maximum total value among total values of squares of current flowing in the conductive portions at longitudinal positions on the one side is larger than that on said another side. The developing device includes a rotating member and sliding portions. A sliding portion having highest temperature in operation is disposed on one side of the developing device being same as the one side of the heater in the longitudinal direction. The airflow generation device generates an airflow toward the one side of the developing device.
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公开(公告)号：US11054772B2
公开(公告)日：2021-07-06
申请号：US16535350
申请日：2019-08-08
摘要： A heater for being attached to a heating device includes a base layer, a heat generator mounted on the base layer, an electrode mounted on the base layer, and a feeder mounted on the base layer. The feeder is interposed between the electrode and the heat generator. The feeder is configured to electrically connect the electrode to the heat generator. A positioner is configured to engage a counterpart of the heating device. The positioner is configured to position the heater in a longitudinal direction of the heater when the heater is attached to the heating device.
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公开(公告)号：US10969717B2
公开(公告)日：2021-04-06
申请号：US16736995
申请日：2020-01-08
IPC分类号： G03G15/20
摘要： A heating device includes an endless rotator that rotates in a rotation direction and a heater that contacts an inner circumferential surface of the endless rotator and extends in an axial direction of the endless rotator. An elastic body contacts the inner circumferential surface of the endless rotator and is disposed downstream from the heater in the rotation direction of the endless rotator. A holder holds the heater and the elastic body. A pressure rotator is disposed opposite the heater and the elastic body via the endless rotator to form a nip between the endless rotator and the pressure rotator. A motion restrictor is mounted on the holder. The motion restrictor restricts motion of the heater downstream in the rotation direction of the endless rotator.
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公开(公告)号：US10809652B2
公开(公告)日：2020-10-20
申请号：US16520409
申请日：2019-07-24
摘要： A fixing device includes a first rotator, a second rotator disposed opposite the first rotator to form a nip with the first rotator, a heater including a base and a heat generator, and a non-contact temperature detector to detect a temperature of the heater. The heater contacts an inner circumferential surface of the first rotator. The non-contact temperature detector is disposed opposite the inner circumferential surface of the first rotator via the base and disposed at a predetermined distance from the heater.
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公开(公告)号：US20200249602A1
公开(公告)日：2020-08-06
申请号：US16715348
申请日：2019-12-16
申请人： Daisuke Inoue , Tomoya ADACHI , Yuusuke FURUICHI
发明人： Daisuke Inoue , Tomoya ADACHI , Yuusuke FURUICHI
摘要： A fixing device includes an endless belt that rotates and a pressure rotator that rotates and presses against the endless belt to form a fixing nip between the endless belt and the pressure rotator, through which a recording medium bearing an image is conveyed. A heater is disposed inside a loop formed by the endless belt. The heater heats the endless belt. A conductor is disposed upstream from the pressure rotator in a recording medium conveyance direction and grounded. The conductor contacts and detects the recording medium.
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公开(公告)号：US20200033766A1
公开(公告)日：2020-01-30
申请号：US16391959
申请日：2019-04-23
申请人： Takamasa Hase , Tomoya Adachi , Yuusuke Furuichi , Yukimichi Someya , Masahiro Samei , Daisuke Inoue
发明人： Takamasa Hase , Tomoya Adachi , Yuusuke Furuichi , Yukimichi Someya , Masahiro Samei , Daisuke Inoue
IPC分类号： G03G15/20
摘要： An image forming apparatus includes a power controller that starts an examination mode by an external operation. The examination mode detects a temperature-resistance property of a resistive heat generator. The power controller supplies power at a predetermined power duty cycle to the resistive heat generator, The power controller obtains the power supplied to the resistive heat generator and a change in a temperature of the resistive heat generator, that is detected by a temperature detector, while the power controller supplies the power at the predetermined power duty cycle to the resistive heat generator. The power controller calculates the temperature-resistance property of the resistive heat generator based on the power and the change in the temperature that are obtained. The power controller adjusts a power duty cycle at which the power is supplied to the resistive heat generator based on the temperature-resistance property.
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公开(公告)号：US20190278206A1
公开(公告)日：2019-09-12
申请号：US16269616
申请日：2019-02-07
摘要： A heater includes a plurality of resistive heat generators electrically connected to each other in parallel. A power supply supplies power to the resistive heat generators. An electric current detector detects an electric current that flows through the resistive heat generators. A voltage detector detects a voltage applied to the resistive heat generators. An electric current controller controls the electric current that flows through the resistive heat generators based on the electric current detected by the electric current detector and the voltage detected by the voltage detector. The electric current detector detects the electric current in a state in which, after the power supply starts supplying the power to the resistive heat generators, an identical waveform of an alternating current supplied to the resistive heat generators continues for a predetermined time period or longer taken for the electric current detector to detect the electric current.
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公开(公告)号：US20160378028A1
公开(公告)日：2016-12-29
申请号：US15158391
申请日：2016-05-18
申请人： Hitoshi Fujiwara , Tomoya Adachi , Tomohiko Fujii , Masahiro Samei , Yutaka Naitoh , Yoshiharu Takahashi , Yasuharu Kawarasaki , Kenta Kashiwagi , Kohta Sakaya
发明人： Hitoshi Fujiwara , Tomoya Adachi , Tomohiko Fujii , Masahiro Samei , Yutaka Naitoh , Yoshiharu Takahashi , Yasuharu Kawarasaki , Kenta Kashiwagi , Kohta Sakaya
IPC分类号： G03G15/20
CPC分类号： G03G15/2028
摘要： A separator for separating a recording medium from a fixing rotator includes a separation body including a front end and a conveyance path side face. The front end is disposed in proximity to an outer circumferential surface of the fixing rotator. The conveyance path side face faces a conveyance path where the recording medium is conveyed. At least one rotary separation aid projects beyond the conveyance path side face of the separation body toward the conveyance path. The rotary separation aid is rotated by the recording medium as the recording medium comes into contact with the rotary separation aid.
摘要翻译： 用于从定影旋转器分离记录介质的分离器包括：分离体，其包括前端和输送路侧面。 前端设置在固定旋转体的外周面附近。 输送路侧面面向输送记录介质的输送路径。 至少一个旋转分离助剂超过分离体的输送路侧面朝向输送路径突出。 当记录介质与旋转分离助剂接触时，旋转分离助剂由记录介质旋转。
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公开(公告)号：US20150346662A1
公开(公告)日：2015-12-03
申请号：US14719506
申请日：2015-05-22
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A fixing device includes an endless belt rotatable in a given direction of rotation and a thermal conductor to conduct heat from a heater to the endless belt. A pressure rotator is pressed against the endless belt to form a fixing nip therebetween. An abutment contacts the endless belt to restrict a trajectory of the endless belt to bring the endless belt into contact with the thermal conductor in a particular circumferential span spanning from a particular position upstream from the fixing nip to the fixing nip in the direction of rotation of the endless belt and to separate the endless belt from the thermal conductor in at least a part of an outboard circumferential span outboard from the particular circumferential span in the direction of rotation of the endless belt.
摘要翻译： 定影装置包括沿给定旋转方向旋转的环形带和用于将热量从加热器传导到环形带的热导体。 压力旋转器被压靠在环形带上，以在它们之间形成一个定影辊隙。 支座接触环形带以限制环形带的轨迹，以使环形带与特定圆周跨度的热导体接触，该特定圆周跨度从跨过定影辊隙上游的特定位置到定影辊隙的旋转方向 环形带并且在环形带的旋转方向上的特定圆周跨度的外侧圆周跨度的至少一部分中将环形带与热导体分离。
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