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71. 发明申请

US20210181669A1 CLEANING ROD FOR OPTICAL PRINT HEAD INCLUDED IN IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210181669A1
公开(公告)日：2021-06-17
申请号：US17119072
申请日：2020-12-11
申请人： Canon Kabushiki Kaisha
发明人： Yuta Okada , Shinichiro Hosoi , Takehiro Ishidate , Toshiki Momoka , Ryota Fukumoto
IPC分类号： G03G21/00 , G03G15/04
摘要： A cleaning rod includes a rod-like member, a slidable portion which is provided on a free end side of the rod-like member with respect to a direction in which the cleaning rod is inserted and which is slidable on a light emergent surface of a lens of an image forming apparatus, and a restricting portion configured to restrict movement of the slidable portion in a direction away from the light emergent surface with respect to an optical axis direction by contacting the holder at each of free ends of opposing wall portions of a holder of the image forming apparatus from a side opposite from a side where a photosensitive member of the image forming apparatus is provided with respect to the optical axis direction in a state in which the slidable portion contacts the light emergent surface.

72. 发明申请

US20210173323A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210173323A1
公开(公告)日：2021-06-10
申请号：US17108639
申请日：2020-12-01
申请人： SHARP KABUSHIKI KAISHA
发明人： MANABU MATSUO , TAKAHARU MOTOYAMA
IPC分类号： G03G15/04 , G02B26/12
摘要： An optical scanning device includes a light source and a beam detector for taking a main scanning start time of a light beam emitted from the light source and deflection-scanned by a deflection-scanning component to a predetermined main scanning direction. On the light source and the beam detector, the emission side of the light source and the light receiving side of the beam detector face the light-incident side of an fθ lens, which is longer in the main scanning direction. The light source is arranged on the upstream side in the main scanning direction and the beam detector is arranged on the downstream side in the main scanning direction, or the beam detector is arranged on the upstream side in the main scanning direction and the light source is arranged on the downstream side in the main scanning direction.

73. 发明申请

US20210173322A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME 有权
公开(公告)号：US20210173322A1
公开(公告)日：2021-06-10
申请号：US17097954
申请日：2020-11-13
申请人： SHARP KABUSHIKI KAISHA
发明人： MANABU MATSUO , TAKAHARU MOTOYAMA
IPC分类号： G03G15/04 , G02B7/02 , G02B3/06
摘要： An optical scanning device includes a light source that emits a light beam, a lens member, and a housing that supports the lens member. The housing and the lens member are provided with a housing-side engagement and a lens member-side engagement respectively that engage with each other. The housing-side engagement and the lens member-side engagement are capable of pivoting the lens member around an axis along an optical axis direction of the light beam passing through a contact contacted through concavo-convex engagement with each other.

74. 发明授权

US11029638B2 Image forming apparatus 有权
公开(公告)号：US11029638B2
公开(公告)日：2021-06-08
申请号：US17000618
申请日：2020-08-24
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Shougo Sato
IPC分类号： G03G15/04 , G03G21/16
摘要： An image forming apparatus includes: a drawer movable between an inside position and an outside position; a drum cartridge including a photoconductive drum rotatable about a first axis; and a developing cartridge including a developing roller rotatable about a second axis. The drum cartridge includes a first developing-roller guide pivotable between a first position where the first developing-roller guide guides the developing roller when the developing cartridge is mounted on the drawer with the drum cartridge being mounted on the drawer, and a second position where the first developing-roller guide guides the developing roller with the drum cartridge and the developing cartridge being mounted on the drawer. The second axis is located below the first axis in a state in which the drum cartridge and the developing cartridge are mounted on the drawer, and the first developing-roller guide is located at the second position.

75. 发明授权

US11016408B2 Image forming apparatus with reduced height 有权
公开(公告)号：US11016408B2
公开(公告)日：2021-05-25
申请号：US16907030
申请日：2020-06-19
申请人： CANON KABUSHIKI KAISHA
发明人： Taku Murotani , Mitsuhiro Obara , Hiroyuki Fukuhara , Yoji Misao
IPC分类号： G03G15/04 , G03G15/043 , G02B5/09 , G02B26/10
摘要： An image forming apparatus is provided which forms an image on a recording medium. The image forming apparatus includes a housing; a plurality of photosensitive members which bear respective toner images; a scanning unit which scans surfaces of the plurality of photosensitive members by laser light in accordance with image information; and a recording medium container which contains the recording medium and is detachably mounted in the housing. The scanning unit is disposed under the plurality of photosensitive members and over the recording medium container in the vertical direction, and other components are not interposed between the scanning unit and the recording medium container in the vertical direction.

76. 发明授权

US11003130B1 Exposure device and image forming apparatus 有权
公开(公告)号：US11003130B1
公开(公告)日：2021-05-11
申请号：US16992178
申请日：2020-08-13
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Takuya Otsuka
IPC分类号： G03G21/16 , G03G15/04
摘要： According to one embodiment, the exposure device includes an exposure head, a holder, a biasing member, a lifting mechanism, a support member, a harness, and a protrusion. The holder supports the exposure head movably in a first direction of approaching the photosensitive drum and a second direction of being spaced from the photosensitive drum. The harness has one end portion connected to the exposure head. The harness is positioned with respect to the support member in a positioning location having a length direction position different from that of the one end portion. The harness has a folding portion formed between the one end portion and the positioning location. The protrusion enters inside of the folding portion to regulate movement of the folding portion of the harness in the first direction or the second direction. The protrusion protrudes from the holder in a third direction intersecting the first direction.

77. 发明授权

US10996584B2 Drum unit 有权
公开(公告)号：US10996584B2
公开(公告)日：2021-05-04
申请号：US16727546
申请日：2019-12-26
申请人： Brother Kogyo Kabushiki Kaisha
发明人： Takamasa Tsukada , Junichi Yokoi
IPC分类号： G03G21/16 , G03G15/04
摘要： An image forming apparatus, having a photosensitive drum assembly, an exposure head, and a bearing, is provided. The photosensitive drum assembly includes a photosensitive drum and a flange disposed at an end of the photosensitive drum in an axial direction of an axis of the photosensitive drum. The flange contacts an inner surface of the photosensitive drum. The exposure head includes a plurality of light emitters aligned along the axial direction of the photosensitive drum, a lens array focusing light from the light emitters on the photosensitive drum, and a head frame to support the light emitters and the lens array. The bearing has a first contact face to contact the exposure head to define a distance between the lens array and the photosensitive drum along a direction of an optical axis of the light.

78. 发明授权

US10990030B2 Shading correction signal generation device, multifunction apparatus, and shading correction signal generation method for generating shading correction signal having desired level 有权
公开(公告)号：US10990030B2
公开(公告)日：2021-04-27
申请号：US16841027
申请日：2020-04-06
申请人： SHARP KABUSHIKI KAISHA
发明人： Kazutaka Matsumoto
IPC分类号： G03G15/04 , G03G15/043
摘要： To provide a shading correction signal generation device including a correction amount setting signal generator that generates a correction amount setting signal, a modulator that modulates the correction amount setting signal by a predetermined modulation scheme and outputs the modulation signal, and a filter circuit that filters the modulation signal to generate a shading correction signal. During a transition period, the correction amount setting signal generator generates the correction amount setting signal in which a difference between a level at an end of a predetermined period and an average level during the transition period is larger than a difference between the level at the end of the predetermined period and a level at a start of a shading correction period.

79. 发明授权

US10976682B2 Method for controlling electrophotographic apparatus 有权
公开(公告)号：US10976682B2
公开(公告)日：2021-04-13
申请号：US16801057
申请日：2020-02-25
申请人： CANON KABUSHIKI KAISHA
发明人： Yukihiro Abe , Motoya Yamada , Toshiyasu Shirasuna , Hironori Owaki , Jun Ohira , Yuu Nishimura
IPC分类号： G03G15/04 , G03G15/00
摘要： There is provided a method for controlling an electrophotographic apparatus including forming a first measurement image by performing first halftone processing on image data, forming a second measurement image by performing second halftone processing different from the first halftone processing on the image data, measuring densities of the first measurement image and the second measurement image, calculating a density difference between each of densities of the measurement images, determining whether the density difference satisfies a predetermined reference value, and applying a surface treatment on an electrophotographic photosensitive member if the density difference does not satisfy the reference value, during a non-image formation period.

80. 发明授权

US10955766B2 Image forming apparatus including optical scanning apparatus 有权
公开(公告)号：US10955766B2
公开(公告)日：2021-03-23
申请号：US16890399
申请日：2020-06-02
申请人： CANON KABUSHIKI KAISHA
发明人： Yuichiro Imai , Yasuaki Otoguro , Yuta Okada
IPC分类号： G03G15/04 , G03G21/00 , G03G15/00 , G03G21/16
摘要： An arrangement is therefore employed in which a flexible flat cable is guided by a guide member situated at a position facing a metal rear plate and the flexible flat cable extending from a connector to the metal rear plate is brought into contact with a wall portion of the metal rear plate so that the flexible flat cable is grounded.

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