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公开(公告)号：US12066766B2
公开(公告)日：2024-08-20
申请号：US18175736
申请日：2023-02-28
IPC分类号： G03G15/04 , B41J2/00 , B41J2/447 , B41J29/377 , G03G21/00 , G03G21/20 , G03G15/08 , G03G21/16
CPC分类号： G03G15/04054 , B41J2/4473 , B41J29/377 , G03G15/04063 , G03G21/206 , G03G15/087 , G03G15/0879 , G03G21/1676 , G03G2215/0407 , G03G2215/0412 , G03G2221/1645
摘要： An image forming apparatus includes: a rotatable photoconductor; an exposure portion including a substrate on which a plurality of chips each including a plurality of light emitting portions that emit light for exposing the photoconductor is mounted, and a support portion configured to support the substrate; a fan configured to generate an airflow for cooling the exposure portion; and a duct configured to communicate with the fan and to communicate with the support portion to guide the airflow generated by the fan to the substrate.
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公开(公告)号：US12055869B2
公开(公告)日：2024-08-06
申请号：US18175612
申请日：2023-02-28
IPC分类号： G03G15/04 , B41J2/00 , B41J2/447 , B41J29/377 , G03G21/00 , G03G21/20 , G03G15/02 , G03G21/16
CPC分类号： G03G15/04063 , B41J2/4473 , B41J29/377 , G03G15/04054 , G03G21/206 , G03G15/0266 , G03G21/1676 , G03G2215/0407 , G03G2215/0412 , G03G2221/1645
摘要： An image forming apparatus includes: a photoconductor; a charging portion that charges a surface of the photoconductor; an exposure portion including a substrate including a plurality of light emitting portions for exposing the photoconductor; a developing portion that develops a latent image formed on the surface of the photoconductor with toner; a fan that generates an airflow for cooling the exposure portion; and a duct that communicates with the fan and communicates with the support portion, the duct guiding the airflow generated by the fan to the substrate; in which a part of the duct is formed by a charging support portion that supports the charging portion, a developing support portion that supports the development, and a duct portion, and a space between the duct portion and the charging support portion and a space between the duct portion and the developing support portion are sealed by a sealing member.
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公开(公告)号：US20220143988A1
公开(公告)日：2022-05-12
申请号：US17492150
申请日：2021-10-01
发明人： Takehiro Ishidate
摘要： There is provided an optical print head including: a substrate on which a plurality of light emitting elements is mounted on one surface, and a plurality of electronic components including a driver IC that drives the plurality of light emitting elements is mounted on the other surface opposite to the one surface; and a lens array including a plurality of lenses that respectively condenses light emitted from the plurality of light emitting elements to a photosensitive drum. The substrate includes a plurality of connecting pieces obtained by cutting a connecting portion with another substrate in a longitudinal direction of the substrate, and at least one of the connecting pieces is provided at a position corresponding to a region of the substrate where the driver IC is to be mounted in the longitudinal direction of the substrate.
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公开(公告)号：US11249434B2
公开(公告)日：2022-02-15
申请号：US16398952
申请日：2019-04-30
发明人： Yuya Tamura , Hitoshi Iwai , Takehiro Ishidate , Shinichiro Hosoi , Toshiki Momoka , Daisuke Aruga
摘要： In an image forming apparatus including an optical print head, a length of a cable from a regulating portion to a connecting portion in a state where the connecting portion is connected to a connector is set to a length that enables the connector to be located on a front side of an opening when the optical print head moves to a pull-out position in the state where the connecting portion is connected to the connector.
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公开(公告)号：US10895818B2
公开(公告)日：2021-01-19
申请号：US16713852
申请日：2019-12-13
发明人： Yoshitaka Otsubo , Yasuaki Otoguro , Yuta Okada , Daisuke Aruga , Hitoshi Iwai , Shinichiro Hosoi , Yuichiro Imai , Toshiki Momoka , Saimon Gokyu , Takehiro Ishidate
IPC分类号： G03G15/04
摘要： An image forming apparatus includes a third link portion which is rotatably connected to said first link portion at a position between said first connecting portion and said first moving portion so that said first moving portion and said second moving portion are moved toward said drum unit by rotation of said first link portion about said first connecting portion as a rotation shaft and by rotation of said second link portion about said second connecting portion as a rotation shaft in interrelation with slide of said slidable portion, and which is rotatable relative to the apparatus main assembly. The third link portion is out of contact with the optical print head at a portion corresponding to an end portion on the optical print head side.
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公开(公告)号：US20200292984A1
公开(公告)日：2020-09-17
申请号：US16810673
申请日：2020-03-05
发明人： Hitoshi Iwai , Shinichiro Hosoi , Takehiro Ishidate , Toshiki Momoka , Daisuke Aruga , Ryota Fukumoto
摘要： A cleaning member for use in an image forming apparatus and configured to be inserted into the apparatus, the apparatus comprising a holding body that holds a substrate and lenses, the cleaning member comprising a rod, a cleaning portion provided in the rod to clean a light emission surface of each lens, a magnet attached to the rod, the magnet emitting a magnetic field to generates a magnetic force to draw the holding body thereto so that the cleaning portion maintains contact with the light emission surface, a yoke member attached to the rod and in contact with the magnet. The yoke member is configured to protrude, with respect to the magnet, towards a side on which the holding body is disposed, and a contact portion that is configured to contact the holding body and that to protrude, with respect to the yoke member, towards the above side.
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公开(公告)号：US10747137B2
公开(公告)日：2020-08-18
申请号：US16460248
申请日：2019-07-02
发明人： Takehiro Ishidate , Daisuke Aruga , Toshiki Momoka
IPC分类号： G03G15/04 , G03G21/16 , G03G15/043
摘要： An image forming apparatus includes a print head to expose a drum to light, a first supporting unit supporting the print head and to move to mounting and extraction positions, a cable to supply a print head driving signal, an abutting portion, and a second supporting unit having a holding unit to hold the cable and to support the first supporting member. When the print head moves to the mounting position from the extraction position in a state where the cable is connected to the print head, the abutting portion abuts on the cable in one area between a holding unit held portion and a print head connected portion and moves the one area in a direction in which the first supporting unit moves to the mounting position to form in the one area a curved area that is warped and curved toward the mounting position from the extraction position.
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公开(公告)号：US10656594B2
公开(公告)日：2020-05-19
申请号：US16400999
申请日：2019-05-01
摘要： When an optical print head is positioned at an evacuation position, at least a part of a region where a first member and a third link member overlap with each other in the direction of a pivotal axis of the third link member rotating relative to the first link member overlaps with a sliding portion in the pivotal axis direction.
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公开(公告)号：US10551786B2
公开(公告)日：2020-02-04
申请号：US16211713
申请日：2018-12-06
发明人： Hitoshi Iwai , Daisuke Aruga , Shinichiro Hosoi , Toshiki Momoka , Takehiro Ishidate , Yuya Tamura , Shinichiro Kaikawa
摘要： An image forming apparatus includes a main assembly, a photosensitive drum, an optical print head, a receiving portion, a portion-to-be-engaged, and a guiding portion. The guiding portion is provided between the portion-to-be-engaged and the receiving portion with an interval from both the portion-to-be-engaged and the receiving portion. The guiding portion guides movement of a cleaning member in a direction from the receiving portion toward the portion-to-be-engaged while limiting movement of the cleaning member in a direction different from the longitudinal direction of the cleaning member to engage the engaging portion with the portion-to-be-engaged.
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公开(公告)号：US20200019083A1
公开(公告)日：2020-01-16
申请号：US16460248
申请日：2019-07-02
发明人： Takehiro Ishidate , Daisuke Aruga , Toshiki Momoka
IPC分类号： G03G15/04 , G03G15/043 , G03G21/16
摘要： An image forming apparatus includes a print head to expose a drum to light, a first supporting unit supporting the print head and to move to mounting and extraction positions, a cable to supply a print head driving signal, an abutting portion, and a second supporting unit having a holding unit to hold the cable and to support the first supporting member. When the print head moves to the mounting position from the extraction position in a state where the cable is connected to the print head, the abutting portion abuts on the cable in one area between a holding unit held portion and a print head connected portion and moves the one area in a direction in which the first supporting unit moves to the mounting position to form in the one area a curved area that is warped and curved toward the mounting position from the extraction position.
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