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公开(公告)号：US20190163087A1
公开(公告)日：2019-05-30
申请号：US16200962
申请日：2018-11-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Satoshi Ishida , Takeshi Shimba , Tatsuya Hotogi
IPC: G03G15/043
Abstract: In a photosensitive member and a developing portion are in a separation state and in a start-up period, a first light emission is performed in an image region and a non-image region; when light is detected at least twice during a period when the first light emission is being performed, a second light emission is performed in the non-image region; when a prescribed period of time has elapsed from the start of the second light emission, a third light emission is performed in the image region in a third light emission amount that is smaller than a second light emission amount during a period in which the photosensitive member makes at least one revolution; and, after the third light emission is performed, the photosensitive member and the developing portion are switched to a contact state.
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公开(公告)号：US11693347B2
公开(公告)日：2023-07-04
申请号：US17836512
申请日：2022-06-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Atsunobu Mori , Yohei Suzuki , Seiji Hara , Yasuhisa Matsumoto , Junya Azami , Masafumi Monde , Hirotaka Shiomichi , Tatsuya Hotogi
CPC classification number: G03G15/55 , G03G15/5029 , H04N1/00029 , H04N1/00042 , H04N1/00079 , G03G2215/00637
Abstract: An image forming apparatus includes a first detector detecting an operation sound based on a sound wave received by a receiver; a second detector detecting basis weight of recording material based on an ultrasonic wave transmitted from a transmitter and received by the receiver; a switching unit that switches destination of a reception signal from the receiver between a first path to the first detector and a second path to the second detector; and a controller that controls the switching unit such that the reception signal is output to the first path at a first timing and to the second path at a second timing. When a predetermined condition is satisfied, the controller controls the switching unit such that the reception signal is output to the second path at the first timing or to the first path at the second timing.
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公开(公告)号：US10027837B2
公开(公告)日：2018-07-17
申请号：US15335280
申请日：2016-10-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yasuhiro Shimura , Tatsuya Hotogi , Yuki Nakajima
Abstract: An apparatus includes a calculation unit configured to calculate information about power using a first signal and a second signal, a first communication unit configured to transmit a calculation result of the calculation unit, and a second communication unit configured to receive a plurality of pieces of setting information stored in a storage unit, wherein the calculation apparatus is capable of switching calculation processing of the calculation unit based on the plurality of pieces of setting information received via the second communication unit.
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4.发明申请公开(公告)号：US20180024461A1
公开(公告)日：2018-01-25
申请号：US15634889
申请日：2017-06-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tatsuya Hotogi , Fumiaki Mizuno
IPC: B41J2/385
CPC classification number: G03G15/043 , G03G15/04036
Abstract: An apparatus has a detection unit, a rotating polygonal mirror and a generation unit. The rotating polygonal mirror has reflecting surfaces and configured to deflect light. The detection unit outputs a first signal in accordance with detecting the light. The generation unit, based on the first signal, generates a second signal which is a main scanning synchronization signal for controlling a write start in a main scanning direction. The second signal has a first waveform and a second waveform. The first waveform does not correspond to a reference reflection surface. The second waveform corresponds to the reference reflection surface and is different to the first waveform.
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公开(公告)号：US20170126918A1
公开(公告)日：2017-05-04
申请号：US15335280
申请日：2016-10-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yasuhiro Shimura , Tatsuya Hotogi , Yuki Nakajima
IPC: G03G15/20
CPC classification number: H04N1/00899 , G03G15/2039 , G03G15/80 , G03G2215/2035 , H04N1/00058 , H04N1/00068 , H04N2201/0094
Abstract: An apparatus includes a calculation unit configured to calculate information about power using a first signal and a second signal, a first communication unit configured to transmit a calculation result of the calculation unit, and a second communication unit configured to receive a plurality of pieces of setting information stored in a storage unit, wherein the calculation apparatus is capable of switching calculation processing of the calculation unit based on the plurality of pieces of setting information received via the second communication unit.
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Patent Agency Ranking
6.发明授权公开(公告)号：US09229384B2
公开(公告)日：2016-01-05
申请号：US14637969
申请日：2015-03-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yasuhiro Shimura , Tatsuya Hotogi , Yuki Nakajima
CPC classification number: G03G15/2039 , G03G15/80 , G03G2215/2035 , H02H5/041
Abstract: An image forming apparatus includes a fixing unit having a heater and fixing a toner image formed on a recording material onto this recording material. The heater includes a first heat-generating member and a second heat-generating member, a first driving element provided on a power supply path to the first heat-generating member; a second driving element provided on a power supply path to the second heat-generating member, a control unit controlling the first driving element and the second driving element respectively, first detection unit for detecting current flowing through the first heat-generating member, a second detection unit of detecting current flowing through the second heat-generating member, and a safety circuit receiving a first output of the first detection unit and a second output of the second detection unit.
Abstract translation: 图像形成装置包括具有加热器的定影单元和将形成在记录材料上的调色剂图像定影到该记录材料上。 加热器包括第一发热元件和第二发热元件，第一驱动元件，设置在到第一发热元件的电源通路上; 第二驱动元件，设置在到第二发热元件的电源路径上;控制单元，分别控制第一驱动元件和第二驱动元件;第一检测单元，用于检测流过第一发热元件的电流;第二驱动元件， 检测流过第二发热元件的电流的检测单元，以及接收第一检测单元的第一输出和第二检测单元的第二输出的安全电路。
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公开(公告)号：US20230288861A1
公开(公告)日：2023-09-14
申请号：US18319309
申请日：2023-05-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Atsunobu Mori , Yohei Suzuki , Seiji Hara , Yasuhisa Matsumoto , Junya Azami , Masafumi Monde , Hirotaka Shiomichi , Tatsuya Hotogi
CPC classification number: G03G15/55 , H04N1/00079 , H04N1/00029 , H04N1/00042 , G03G15/5029 , G03G2215/00637
Abstract: An image forming apparatus includes a first detector detecting an operation sound based on a sound wave received by a receiver; a second detector detecting basis weight of recording material based on an ultrasonic wave transmitted from a transmitter and received by the receiver; a switching unit that switches destination of a reception signal from the receiver between a first path to the first detector and a second path to the second detector; and a controller that controls the switching unit such that the reception signal is output to the first path at a first timing and to the second path at a second timing. When a predetermined condition is satisfied, the controller controls the switching unit such that the reception signal is output to the second path at the first timing or to the first path at the second timing.
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8.发明申请公开(公告)号：US20190354034A1
公开(公告)日：2019-11-21
申请号：US16410968
申请日：2019-05-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Atsunobu Mori , Tatsuya Hotogi
IPC: G03G15/043
Abstract: The scanning apparatus and the image forming apparatus include a semiconductor laser emitting laser light for forming an electrostatic latent image according to image data on a photosensitive drum, a rotary polygon mirror scanning the laser light emitted from the semiconductor laser by rotation, a horizontal synchronization sensor arranged in a non-image area, and outputting a signal in response to the laser light being emitted, and a CPU performing intermittent emission control that causes the semiconductor laser to be emitted in an area in which the laser light is emitted to the horizontal synchronization sensor based on a BD cycle, the CPU switches the intermittent emission control based on the BD signal by a time the rotary polygon mirror reaches a target rotation speed.
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公开(公告)号：US20190196354A1
公开(公告)日：2019-06-27
申请号：US16226352
申请日：2018-12-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tatsuya Hotogi
IPC: G03G15/043 , G03G15/04
CPC classification number: G03G15/043 , G03G15/04072
Abstract: A control unit performs first control for outputting a second signal based on a first signal in a case where a cycle of the first signal is within a predetermined cycle, and performs second control for outputting a second signal based on a predicted cycle of the first signal in a case where the cycle of the first signal is out of the predetermined cycle.
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10.发明授权公开(公告)号：US10095155B2
公开(公告)日：2018-10-09
申请号：US15634889
申请日：2017-06-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tatsuya Hotogi , Fumiaki Mizuno
IPC: G03G15/04 , G03G15/043
Abstract: An apparatus has a detection unit, a rotating polygonal mirror and a generation unit. The rotating polygonal mirror has reflecting surfaces and configured to deflect light. The detection unit outputs a first signal in accordance with detecting the light. The generation unit, based on the first signal, generates a second signal which is a main scanning synchronization signal for controlling a write start in a main scanning direction. The second signal has a first waveform and a second waveform. The first waveform does not correspond to a reference reflection surface. The second waveform corresponds to the reference reflection surface and is different to the first waveform.
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