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公开(公告)号：US20190260894A1
公开(公告)日：2019-08-22
申请号：US16243729
申请日：2019-01-09
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Yoshihiro OYAMA
Abstract: An image forming device includes a casing, an image forming unit, a first board, and an operational button. The image forming unit and the first board are disposed in the casing. The first board has a first opening extending through the first board, and a loop antenna disposed around the first opening. The operational button is located in the casing through the first opening. The operational button has a top surface exposed to an exterior of the casing.
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公开(公告)号：US20170277101A1
公开(公告)日：2017-09-28
申请号：US15469788
申请日：2017-03-27
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yoshihiro OYAMA
IPC: G03G15/00
CPC classification number: G03G15/65 , B65H5/06 , B65H85/00 , G03G15/232 , G03G15/234 , G03G15/6529 , G03G15/6573 , G03G15/6579
Abstract: A sheet conveyer, comprising: a 1st conveying roller; a 1st support part to support the 1st conveying roller; a 1st helical gear to rotate together with the 1st conveying roller and to generate thrust in a particular direction; a 2nd conveying roller; a 2nd support part to support the 2nd conveying roller; a 2nd helical gear to generate thrust in the particular direction; a 3rd helical gear to engage with the 1st helical gear; a 4th helical gear to engage with the 2nd helical gear; and a clutch to connect or disconnect transmission of a driving force between the 3rd helical gear and the 4th helical gear, wherein: when the clutch is disconnected, the 1st and 2nd conveying rollers are disposed at an initial position, and when the clutch is connected, the 1st and 2nd conveying rollers move from the initial position in the particular direction.
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公开(公告)号：US20230176362A1
公开(公告)日：2023-06-08
申请号：US18061061
申请日：2022-12-02
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Koji ABE , Yoshihiro OYAMA , Junichi YOKOI
CPC classification number: G02B26/123 , G02B26/124 , H01S5/40 , H01S5/0071
Abstract: A scanning optical device proposed herein includes first and second semiconductor lasers, first and second coupling lenses, a polygon mirror, and first and second holders. The first and second coupling lenses convert light emitted by the first and second semiconductor lasers into light beams, respectively. The polygon mirror deflects the light beams received from the first and second coupling lenses. The first holder has a seating surface on which the first coupling lens is fixed by a photo-curable resin. The second holder is configured to hold the second coupling lens in such a position that the first and second coupling lenses are arranged in a line parallel to a rotation axis of the polygon mirror. The second holder is fixed to the first holder by a photo-curable resin.
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公开(公告)号：US20170227899A1
公开(公告)日：2017-08-10
申请号：US15417271
申请日：2017-01-27
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yoshihiro OYAMA , Tomoya YAMAMOTO
IPC: G03G15/20
CPC classification number: G03G15/2028 , G03G15/234 , G03G21/1647 , G03G21/1685 , G03G21/1695 , G03G2215/00438 , G03G2215/00565 , G03G2215/00586
Abstract: An image forming apparatus includes a photosensitive drum, a fixing unit including a fixing roller, a sheet ejection tray, a switchback roller, a re-feeding roller, a first frame, a second frame, a first motor, a first transmission mechanism, a second motor, and a second transmission mechanism. The switchback roller is configured to rotate in a forward direction to convey a sheet to the tray and in a reverse direction to convey the sheet back toward the photosensitive drum. The first motor and the first transmission mechanism are disposed to the first frame. The first transmission mechanism is configured to transmit the drive force from the first motor to the fixing roller. The second motor and the second transmission mechanism are disposed to the second frame. The second transmission mechanism is includes a clutch mechanism configured to intermittently transmit the drive force from the second motor to the re-feeding roller.
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公开(公告)号：US20170168445A1
公开(公告)日：2017-06-15
申请号：US15370407
申请日：2016-12-06
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Yoshihiro OYAMA
IPC: G03G15/00
CPC classification number: G03G15/6579 , G03G15/234 , G03G15/6529 , G03G2215/00586
Abstract: An image forming apparatus includes a process unit to form an image onto a sheet. A fixer fixes the image to the sheet. A reverse roller makes a positive rotation to convey the sheet in a forward direction from the fixer, and makes an opposite rotation to convey the sheet in an opposite direction. A returner returns the sheet to the process unit. A branching member guides the sheet from the reverse roller to the returner. A first sensor detects the sheet. The controller controls the reverse roller to make the positive rotation at a circumferential speed higher than a speed of the sheet conveyed by the fixer, controls the reverse roller to wait for predetermined waiting time after the first sensor has detected a rear end of the sheet, and makes the waiting time shorter as a length of the sheet is greater.
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Patent Agency Ranking
公开(公告)号：US20240168404A1
公开(公告)日：2024-05-23
申请号：US18494452
申请日：2023-10-25
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Junichi YOKOI , Yoshihiro OYAMA
CPC classification number: G03G15/04036 , G02B26/124
Abstract: A light source device includes: a semiconductor laser configured to emit light; a coupling lens configured to convert the light from the semiconductor laser into light beam; and a holder supporting the coupling lens. The coupling lens has: an optical surface defining an optical axis; and a flange portion protruding outward in a radial direction orthogonal to the optical axis. The flange portion includes: a first flange portion having an arcuate surface centered on the optical axis; and a second flange portion having a flat surface extending along the optical axis. The holder has: a first positioning part opposing the arcuate surface in the radial direction for positioning of the coupling lens; and a first notch through which a part of the flat surface is exposed in the radial direction. At least a part of the first flange portion is bonded to the holder.
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公开(公告)号：US20230176365A1
公开(公告)日：2023-06-08
申请号：US18061441
申请日：2022-12-03
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Koji ABE , Yoshihiro OYAMA , Junichi YOKOI
IPC: G02B26/12
CPC classification number: G02B26/125 , G02B26/124
Abstract: A scanning optical device includes a semiconductor laser, a coupling lens, a condenser lens, a deflector, a scanning optical system, a frame, and a first cover. The coupling lens converts light emitted by the first semiconductor laser to a light beam. The light beam received from the coupling lens is concentrated through the condenser lens. The deflector includes a polygon mirror configured to deflect the light beam received from the condenser lens. The scanning optical system directs the light beam deflected by the deflector toward an image plane. The deflector and the scanning optical system are fixed to the frame. The first cover covers at least a portion of the frame on which the deflector is located. The frame includes a wall having an opening through which a light beam traveling toward the polygon mirror passes. The condenser lens closes the opening.
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公开(公告)号：US20220210286A1
公开(公告)日：2022-06-30
申请号：US17563683
申请日：2021-12-28
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Toshiki MOTOYAMA , Yoshihiro OYAMA , Yoshihiro OKAMOTO , Kazushi SHUMIYA , Kentaro AOYAMA
Abstract: In a reading device, a light transmissive member has a front surface on which an original is placed. A peripheral member is adjacent to the light transmissive member, and includes a back surface in which a reference hole is formed. The reference hole includes a first edge and a second edge intersecting with each other. A reading sensor faces the back surface of the light transmissive member and the back surface of the peripheral member. The controller controls the reading sensor to read a reading range including the reference hole to obtain a read image, and determines a reference position in the reading range based on the read image. The reference position is determined to an intersection between the first edge and the second edge. The controller sets a reading start position based on the reference position.
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公开(公告)号：US20200314272A1
公开(公告)日：2020-10-01
申请号：US16829138
申请日：2020-03-25
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yoshihiro OYAMA
IPC: H04N1/00
Abstract: An image forming apparatus includes a printer having a sheet discharge tray, a scanning device disposed above the printer, a resin-made support member supporting the scanning device on the printer and defining a sheet discharge space above the sheet discharge tray between the printer and the scanning device, a metal-made first reinforcement plate fixed to the printer and the support member, and a metal-made second reinforcement plate fixed to the scanning device and the support member. The support member has a notched part formed to communicate the sheet discharge space with an outside in a direction intersecting a sheet discharge direction on the sheet discharge tray. The first reinforcement plate extends at least in a vertical direction along the notched part. The second reinforcement plate, which is not coupled with the first reinforcement plate, extends at least in the vertical direction along the notched part.
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公开(公告)号：US20180257883A1
公开(公告)日：2018-09-13
申请号：US15910075
申请日：2018-03-02
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yoshihiro OYAMA
IPC: B65H3/06
CPC classification number: B65H3/0653 , B65H2402/64 , B65H2405/121 , G03G21/1628 , G03G21/1633 , G03G21/1647 , H04N1/00551 , H04N1/00554 , H04N1/0066 , H04N2201/0063
Abstract: An image forming apparatus includes a first casing, a pivotable second casing, a pivotable document cover, and a lock mechanism including a movable hook and a fixed hook. The second casing has a document support surface. When the second casing is at a first position in which the second casing covers an upper surface of the first casing, and the document cover is at a fourth position in which the document cover reveals the document support surface, the movable hook is engaged with the fixed hook. When the second casing is at the first position, and the document cover is at a third position in which the document cover covers the document support surface, the movable hook is disengaged from the fixed hook.
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