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公开(公告)号：US20210389706A1
公开(公告)日：2021-12-16
申请号：US17348673
申请日：2021-06-15
Applicant: KYOCERA Document Solutions Inc.
Inventor： Ryohei Tokunaga , Yuta Kitabayashi , Shunsaku Fujii
IPC: G03G15/20
Abstract: A sliding member is a tubular member surrounding a base member, and allows, by rotation, its lubricant-coated inner surface to slide in a sheet conveyance direction with respect to a surface of the base member. A heater heats the sliding member. A pressure roller forms a nip between the pressure roller and the sliding member and makes, by rotation, the sliding member rotate following the rotation. A temperature sensor measures a temperature of the base member or the sliding member. A roller driving device rotates the pressure roller at a preset initial speed and subsequently at a normal speed higher than the initial speed, in a temperature-rise process in which the temperature measured by the temperature sensor is raised to a target temperature by operation of the heater.
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公开(公告)号：US11644772B2
公开(公告)日：2023-05-09
申请号：US17680755
申请日：2022-02-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takashi Eiki , Akihiro Kondo , Ryohei Tokunaga , Yuta Kitabayashi , Hiroki Kawasaki , Shunsaku Fujii , Tei To , Rina Kikugawa
CPC classification number: G03G15/205 , G03G15/2064 , G03G15/5045
Abstract: A duration measuring section measures a plurality of times. A temperature measuring section measures a temperature of a heater at each of the times. A temperature information outputting section outputs heater temperature information. A temperature tendency computing section outputs temperature tendency information of the heater. A drive controller outputs linear velocity information for controlling the linear velocity of a pressure roller. A pressure roller drive section drives the pressure roller.
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公开(公告)号：US10416596B2
公开(公告)日：2019-09-17
申请号：US16100238
申请日：2018-08-10
Applicant: KYOCERA Document Solutions Inc.
Inventor： Ryohei Tokunaga , Taro Kurahashi
Abstract: A fixing device includes a fixing member, a pressuring member, a temperature sensing part and an air blow controlling part. The fixing member heated by a heat source heats a toner image on the recording medium. The temperature sensing part includes an infrared sensing element sensing infrared rays from the fixing member and a condensing member condensing the infrared rays to the infrared sensing element. The air blow controlling part executes and stops the air blow to the temperature sensing part. Detection temperature of the fixing member is calculated with a sensing value by the infrared sensing element. The detection temperature or control temperature of the heat source is corrected with air blow condition by the air blow controlling part and temperature deference between the infrared sensing element and the condensing member. Heating of the fixing member is controlled with the corrected detection temperature or the corrected control temperature.
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公开(公告)号：US10248056B2
公开(公告)日：2019-04-02
申请号：US16107224
申请日：2018-08-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Eriko Hayashi , Ryohei Tokunaga , Tatsuya Yamanaka , Takashi Kainuma
IPC: G03G15/20
Abstract: A fixing device includes a fixing member, a pressuring member and a temperature sensing part. The fixing member heated by a heat source contacts with a recording medium to heat a toner image on the recording medium. The pressuring member pressures the recording medium to the fixing member. The temperature sensing part in non-contact with the fixing member includes an infrared sensing element sensing infrared rays from the fixing member and a condensing member condensing the infrared rays to the infrared sensing element. Detection temperature of the fixing member is calculated with a sensing value by the infrared sensing element. The detection temperature or control temperature of the heat source is corrected with temperature deference between the infrared sensing element and the condensing member. Heating of the fixing member is controlled with the corrected detection temperature and the control temperature or the detection temperature and the corrected control temperature.
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公开(公告)号：US12013654B2
公开(公告)日：2024-06-18
申请号：US18059741
申请日：2022-11-29
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroki Kawasaki , Takashi Eiki , Ryohei Tokunaga , Yuta Kitabayashi , Rina Kikugawa , Shunsaku Fujii , Tei To
IPC: G03G15/20
CPC classification number: G03G15/2053
Abstract: A fixing device includes a first fixing member, a second fixing member, a pressing member, and a heating device. The first fixing member is in an ungrounded state and comes into contact with a toner image on a sheet. The second fixing member is arranged opposite the first fixing member. The pressing member presses the first fixing member against the second fixing member so as to form, at the contact portion between the first fixing member and the second fixing member, a nip portion through which the sheet passes. The heating device heats the first fixing member.
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Patent Agency Ranking
公开(公告)号：US20210389705A1
公开(公告)日：2021-12-16
申请号：US17348650
申请日：2021-06-15
Applicant: KYOCERA Document Solutions Inc.
Inventor： Ryohei Tokunaga , Yoshiyuki Odaka
Abstract: An image forming apparatus is provided with a sheet conveying device, a transfer device, a fixing device, a temperature sensor, a temperature control portion, and a conveyance control portion. The temperature control portion regulates power supplied to the heater by comparing between a temperature measured by the temperature sensor and a preset target temperature. The temperature control portion sets the target temperature to a first target temperature when an operation mode is a normal mode, and to a second target temperature lower than the first target temperature when the operation mode is a special mode. In a case in which the sequential printing process is performed, the conveyance control portion makes the sheet conveying device convey sheets at a longer interval when the operation mode is the special mode than when the operation mode is the normal mode.
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公开(公告)号：US09557691B2
公开(公告)日：2017-01-31
申请号：US14962189
申请日：2015-12-08
Applicant: KYOCERA Document Solutions Inc.
Inventor： Ryohei Tokunaga , Tatsuya Yamanaka
CPC classification number: G03G15/2039 , G03G15/2064
Abstract: The fixing unit has a housing that has a heating roller and a pressing roller accommodated therein. A temperature detection sensor and a sensor board are provided outside the housing. An image forming apparatus includes a sensor protection tube. The sensor protection tube includes a hollow cylindrical body passing through a side wall portion of the housing. One end of the sensor protection tube abuts a mounting surface of the temperature detection sensor in the sensor board so as to surround a periphery of the temperature detection sensor. The other end of the sensor protection tube is positioned in the housing.
Abstract translation: 定影单元具有容纳在其中的加热辊和加压辊的壳体。 温度检测传感器和传感器板设置在壳体外部。 图像形成装置包括传感器保护管。 传感器保护管包括穿过壳体的侧壁部分的中空圆筒体。 传感器保护管的一端与传感器板中的温度检测传感器的安装表面邻接，以便围绕温度检测传感器的周围。 传感器保护管的另一端位于外壳中。
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公开(公告)号：US11768455B2
公开(公告)日：2023-09-26
申请号：US17704207
申请日：2022-03-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Rina Kikugawa , Takashi Eiki , Akihiro Kondo , Ryohei Tokunaga , Yuta Kitabayashi , Hiroki Kawasaki , Shunsaku Fujii , Tei To
CPC classification number: G03G15/2053 , H05B3/0095
Abstract: A heater includes electrodes and heating element pieces. The electrodes energize the heating element pieces with electricity. The heating element pieces are connected to the electrodes and arranged through a gap portion in the heater in a main scanning direction. A ratio of a second surface area of the gap portion to a first surface area of the heating element pieces is 0
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公开(公告)号：US11614701B2
公开(公告)日：2023-03-28
申请号：US17656402
申请日：2022-03-24
Applicant: KYOCERA Document Solutions Inc.
Inventor： Akihiro Kondo , Takashi Eiki , Ryohei Tokunaga , Yuta Kitabayashi , Rina Kikugawa , Hiroki Kawasaki , Shunsaku Fujii , Tei To
Abstract: A fixing belt heats and fixes a toner image. A pressure roller rotates the fixing belt while in contact with the fixing belt. A heater heats the fixing belt. A lubricating oil forms an oil film between the heater and an inner peripheral surface of the fixing belt. A pressure roller driver rotates the pressure roller so that the lubricating oil causes the fixing belt to be out of contact with the heater.
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公开(公告)号：US10514639B2
公开(公告)日：2019-12-24
申请号：US16183915
申请日：2018-11-08
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroki Kawasaki , Takashi Eiki , Kotatsu Kawaguchi , Ryohei Tokunaga , Atsushi Kohama , Yuhiro Sakai , Sadanori Nakae , Yuta Kitabayashi , Shunsaku Fujii
Abstract: A heating unit includes a circuit board, a plurality of heating parts, and a plurality of wiring parts. The heating parts are arranged in a first direction on a surface of the circuit board. The wiring parts are provided on the surface of the circuit board and electrically connect the heating parts and a power source to feed the heating parts. The wiring parts respectively include electrode terminal parts electrically connected to the power source outside the heating parts in the first direction. Sizes in a second direction orthogonal to the first direction of the heating parts are set to decrease gradually or stepwisely with separating in the first direction from the electrode terminal parts.
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