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公开(公告)号：US20190094776A1
公开(公告)日：2019-03-28
申请号：US16048567
申请日：2018-07-30
申请人： TAKUMA NISHIO , Yoshinobu Sakaue , Susumu Narita , Ryo Sato , Koichi Murota , Masashi Suzuki , Hiroaki Nishina
发明人： TAKUMA NISHIO , Yoshinobu Sakaue , Susumu Narita , Ryo Sato , Koichi Murota , Masashi Suzuki , Hiroaki Nishina
摘要： An image forming apparatus includes an image reading device; an image forming device including a photoconductor, a charger, an exposure device including a light-emitting element, a memory to store a first correction value for correction a light emission amount of the light-emitting element, and a driver to drive the light-emitting element, a developing device, a transfer device, and a fixing device. The image forming apparatus further includes a processor to calculate a second correction value for correcting the light emission amount, based on density data of image data of a predetermined pattern on a recording medium; calculate a third correction value for correcting the light emission amount, based on the first correction value and the second correction value; and determine, before calculating the third correction value, whether placement of the recording medium on the reading table is correct based on the density data.
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公开(公告)号：US10514646B2
公开(公告)日：2019-12-24
申请号：US15990317
申请日：2018-05-25
申请人： Susumu Narita , Yoshinobu Sakaue , Ryo Sato , Koichi Murota , Masashi Suzuki , Takuma Nishio , Hiroaki Nishina
发明人： Susumu Narita , Yoshinobu Sakaue , Ryo Sato , Koichi Murota , Masashi Suzuki , Takuma Nishio , Hiroaki Nishina
IPC分类号： G03G15/00 , G03G15/043
摘要： An image forming apparatus includes a latent image bearer, a latent image writing device, a developing device, a conveyance unit to convey a recording medium, a transfer device, a length data acquisition unit to obtain a length of the recording medium in a conveyance direction of the recording medium, an image forming processor to form a test pattern, and a light quantity correction calculator that acquires image density data of the test pattern and calculates a light quantity correction value to correct a light quantity. The image forming processor sets a position of the test pattern on the recording medium in the conveyance direction of the recording medium and a length of the test pattern in the conveyance direction of the recording medium based on the length of the recording medium in the conveyance direction of the recording medium obtained by the length data acquisition unit.
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公开(公告)号：US10437188B2
公开(公告)日：2019-10-08
申请号：US16048567
申请日：2018-07-30
申请人： Takuma Nishio , Yoshinobu Sakaue , Susumu Narita , Ryo Sato , Koichi Murota , Masashi Suzuki , Hiroaki Nishina
发明人： Takuma Nishio , Yoshinobu Sakaue , Susumu Narita , Ryo Sato , Koichi Murota , Masashi Suzuki , Hiroaki Nishina
摘要： An image forming apparatus includes an image reading device; an image forming device including a photoconductor, a charger, an exposure device including a light-emitting element, a memory to store a first correction value for correction a light emission amount of the light-emitting element, and a driver to drive the light-emitting element, a developing device, a transfer device, and a fixing device. The image forming apparatus further includes a processor to calculate a second correction value for correcting the light emission amount, based on density data of image data of a predetermined pattern on a recording medium; calculate a third correction value for correcting the light emission amount, based on the first correction value and the second correction value; and determine, before calculating the third correction value, whether placement of the recording medium on the reading table is correct based on the density data.
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公开(公告)号：US20180356759A1
公开(公告)日：2018-12-13
申请号：US15990317
申请日：2018-05-25
申请人： Susumu Narita , Yoshinobu Sakaue , Ryo Sato , Koichi Murota , Masashi Suzuki , Takuma Nishio , Hiroaki Nishina
发明人： Susumu Narita , Yoshinobu Sakaue , Ryo Sato , Koichi Murota , Masashi Suzuki , Takuma Nishio , Hiroaki Nishina
IPC分类号： G03G15/00 , G03G15/043
CPC分类号： G03G15/5062 , G03G15/043 , G03G15/6529 , G03G2215/00042
摘要： An image forming apparatus includes a latent image bearer, a latent image writing device, a developing device, a conveyance unit to convey a recording medium, a transfer device, a length data acquisition unit to obtain a length of the recording medium in a conveyance direction of the recording medium, an image forming processor to form a test pattern, and a light quantity correction calculator that acquires image density data of the test pattern and calculates a light quantity correction value to correct a light quantity. The image forming processor sets a position of the test pattern on the recording medium in the conveyance direction of the recording medium and a length of the test pattern in the conveyance direction of the recording medium based on the length of the recording medium in the conveyance direction of the recording medium obtained by the length data acquisition unit.
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公开(公告)号：US10082761B2
公开(公告)日：2018-09-25
申请号：US15630059
申请日：2017-06-22
申请人： Susumu Narita , Takeshi Yamakawa , Yoshinobu Sakaue , Kazunori Watanabe , Tomoya Fujii , Ryo Sato
发明人： Susumu Narita , Takeshi Yamakawa , Yoshinobu Sakaue , Kazunori Watanabe , Tomoya Fujii , Ryo Sato
CPC分类号： G03G21/00 , G03G15/04 , G03G15/0409 , G03G21/1666 , G03G2221/0005 , G03G2221/0026 , G03G2221/0089
摘要： An image forming apparatus includes an image bearer, an exposure device, a drive device, a cleaning body, and an exposure device holder. The exposure device is disposed on a motion trajectory between an exposure position and a retracted position and emits light to the image bearer via a lens having a lens surface at the exposure position. The drive device causes the exposure device to move between the exposure position and the retracted position. The cleaning body disposed on the motion trajectory of the exposure device tilts a cleaning surface when contacting with the lens surface of the exposure device. The exposure device holder supports the exposure device while changing an attitude of the exposure device such that the lens surface remains in contact with the cleaning surface of the cleaning body when the exposure device moves from the retracted position to the exposure position.
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公开(公告)号：US20220294926A1
公开(公告)日：2022-09-15
申请号：US17669348
申请日：2022-02-10
申请人： Susumu Narita , Takeshi Yamakawa , Yoshinobu Sakaue , Ryo Sato , Makoto Noda
发明人： Susumu Narita , Takeshi Yamakawa , Yoshinobu Sakaue , Ryo Sato , Makoto Noda
摘要： A housing includes a body having an opening. The body includes a peripheral portion that abuts on the opening. A cover covers at least a part of the opening. A seal is sandwiched between the cover and the peripheral portion of the body. At least one of the cover and the peripheral portion of the body includes a corner portion and a linear portion. The corner portion has a first shape that defines one of a gap between the cover and the peripheral portion of the body and a width of the seal. The linear portion abuts on the corner portion. The linear portion has a second shape that defines the one of the gap between the cover and the peripheral portion of the body and the width of the seal. The second shape is different from the first shape of the corner portion.
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公开(公告)号：US09471028B2
公开(公告)日：2016-10-18
申请号：US15046468
申请日：2016-02-18
CPC分类号： G03G21/1619 , B41J2/385 , G02B26/12 , G03G15/04 , G10K11/002
摘要： An optical scanning device includes a light source configured to emit a light beam; a rotary deflector configured to perform optical scanning by reflecting and deflecting the light beam emitted from the light source while rotating; an optical system forming member configured to form a path of the light beam; and a resonator having a resonance frequency corresponding to a sound generated by rotational drive of the rotary deflector. The rotary deflector is installed in a closed space. The resonator is installed so that the sound within the closed space is absorbed.
摘要翻译： 光学扫描装置包括配置为发射光束的光源; 旋转偏转器，被配置为通过在旋转时反射和偏转从光源发射的光束来执行光学扫描; 构造成形成光束路径的光学系统形成部件; 以及具有对应于由旋转偏转器的旋转驱动产生的声音的共振频率的谐振器。 旋转偏转器安装在封闭的空间。 安装谐振器使得封闭空间内的声音被吸收。
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公开(公告)号：US09360790B2
公开(公告)日：2016-06-07
申请号：US14708343
申请日：2015-05-11
摘要： An optical scanning device that performs optical scanning across an object to be scanned with a light deflected, comprises: a deflection unit that causes a deflection mirror driven by a driving source to deflect the travel direction of light emitted from a light source and generates the light deflected; a resonator that includes a resonance space for reducing sound emitted from the deflection unit and a resonance passage communicating with the resonance space to direct sound from outside to inside the resonance space; a housing that accommodates the deflection unit and the resonator, and a partition wall that partitions a deflection unit accommodating space acting as a space for accommodating the deflection unit in the housing and a resonator accommodating space acting as a space for accommodating the resonator in the housing.
摘要翻译： 一种光学扫描装置，其以偏转的光进行扫描对象的光学扫描，包括：偏转单元，其使由驱动源驱动的偏转镜偏转从光源发出的光的行进方向，并产生光 偏转 谐振器，其包括用于减少从所述偏转单元发出的声音的共振空间和与所述共振空间连通的谐振通道，以将声音从所述谐振空间的外部引导到内部; 容纳偏转单元和谐振器的壳体以及将作为用于容纳偏转单元的空间的偏转单元容纳空间分隔在壳体中的分隔壁和用作将谐振器容纳在壳体中的空间的谐振器容纳空间 。
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公开(公告)号：US09298121B2
公开(公告)日：2016-03-29
申请号：US14720022
申请日：2015-05-22
CPC分类号： G03G21/1619 , B41J2/385 , G02B26/12 , G03G15/04 , G10K11/002
摘要： An optical scanning device includes a light source configured to emit a light beam; a rotary deflector configured to perform optical scanning by reflecting and deflecting the light beam emitted from the light source while rotating; an optical system forming member configured to form a path of the light beam; and a resonator having a resonance frequency corresponding to a sound generated by rotational drive of the rotary deflector. The rotary deflector is installed in a closed space. The resonator is installed so that the sound within the closed space is absorbed.
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公开(公告)号：US09864296B2
公开(公告)日：2018-01-09
申请号：US14643122
申请日：2015-03-10
申请人： Tomoya Fujii , Tadashi Nakamura , Nobuyuki Arai , Yoshinobu Sakaue , Noboru Kusunose , Daisuke Imaki
发明人： Tomoya Fujii , Tadashi Nakamura , Nobuyuki Arai , Yoshinobu Sakaue , Noboru Kusunose , Daisuke Imaki
IPC分类号： G03G15/043 , G02B26/12 , G03G15/04
CPC分类号： G03G15/0435 , G02B26/124 , G02B26/127 , G03G15/04045
摘要： An optical scanner includes a light source including a plurality of light emitting elements, a polygon mirror which deflects light from the light source for scanning a surface of a subject, an optical element arranged between the light source and the polygon mirror, having optical power in a sub scanning direction, a synchronous detector which detects the light deflected by the polygon mirror for synchronous detection and generates a signal for controlling a timing at which the scanning of the surface is started, and a fixing element which secures one end of the optical element. The light emitting elements of the light source are aligned with a certain tilt angle relative to the sub scanning direction. Light from one of the light emitting elements disposed closest to the fixing element in a main scanning direction is used for synchronous detection.
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