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公开(公告)号：US12105441B2
公开(公告)日：2024-10-01
申请号：US18207819
申请日：2023-06-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroyuki Munetsugu , Hiroshi Takarada , Mitsuhiro Sato
IPC: G03G15/08
CPC classification number: G03G15/0865 , G03G15/0822 , G03G15/0874 , G03G15/0877 , G03G15/0879 , G03G15/0886 , G03G15/0887 , G03G15/0891 , G03G15/0896 , G03G2215/066 , G03G2215/0682 , G03G2215/0692 , G03G2215/08
Abstract: A toner container includes a storage portion configured to store toner and a communicating member including a receiving port, a discharge port, and a passage. The passage includes a first inclined surface and a second inclined surface connecting the first inclined surface and the discharge port to each other. When viewed in a third direction perpendicularly intersecting with both of a first direction and a second direction, the first inclined surface is inclined with respect to the second direction such that a more downstream portion of the first inclined surface in the first direction is closer to the discharge port in the second direction, and the second inclined surface is inclined with respect to the second direction such that a more downstream portion of the second inclined surface in the first direction is closer to the discharge port in the second direction.
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公开(公告)号：US12092972B2
公开(公告)日：2024-09-17
申请号：US18133037
申请日：2023-04-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Katsuya Murakami , Toshiaki Nagashima , Fumio Tazawa , Ayatomo Okino , Yusuke Yamada
IPC: G03G15/08
CPC classification number: G03G15/0867 , G03G15/0865 , G03G15/0872 , G03G15/0877 , G03G2215/0685
Abstract: A toner cartridge includes a chamber containing toner, a feeding portion configured to feed the toner toward an opening in the toner cartridge, and a pump configured to discharge the toner through the opening to outside of the toner cartridge, the pump being configured to move the toner by changing pressure inside of the toner cartridge relative to pressure outside of the toner cartridge. A rotatable coupling is configured to receive a rotational force from outside of the toner cartridge, the coupling being operatively connected to the feeding portion and the pump so as to transmit the rotational force to the feeding portion and the pump to thereby rotate the feeding portion and drive the pump.
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公开(公告)号：US12078952B2
公开(公告)日：2024-09-03
申请号：US18124675
申请日：2023-03-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yosuke Kashiide , Takashi Kimura
CPC classification number: G03G21/1647 , G03G15/08 , G03G15/0877 , G03G15/0886 , G03G21/1676 , G03G21/1832 , G03G2215/067 , G03G2215/0692
Abstract: According to a first aspect of the present invention, there is provided a toner cartridge detachably mountable to a receiving device, the toner cartridge comprising a container including a accommodating portion for accommodating the toner and a discharge opening for discharging the toner from the accommodating portion into the receiving device; and an open/close member including a closing portion for closing the discharge opening and an engaging portion movable relative to the closing portion, the open/close member being rotatable relative to the container between (a) an opening position for causing the closing portion to open the discharge opening and (b) a closing position for causing the closing portion to close the discharge opening, wherein the engaging portion is movable relative to the closing portion between (c) a engaging position for engagement with the receiving device to receive a force for moving the open/close member from the opening position to the closing position when the toner cartridge is dismounted from the receiving device and (d) a retracted position retracted from the engaging position, and wherein the engaging portion is movable from the retracted position to the engaging position with rotation of the open/close member from the closing position to the opening position.
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公开(公告)号：US12050431B2
公开(公告)日：2024-07-30
申请号：US18304564
申请日：2023-04-21
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Shougo Sato , Miho Ishida
CPC classification number: G03G21/1803 , G03G15/0877 , G03G21/1633 , G03G21/1676 , G03G2221/163 , G03G2221/1654
Abstract: An image forming apparatus includes a housing, a top cover having an opening, a process cartridge attachable to the housing, a toner cartridge attachable to the process cartridge, and an interlocking mechanism. The top cover is pivotally movable between a first position closing the opening and a second position opening the opening. In a state where the toner cartridge is attached to the process cartridge, the toner cartridge is pivotally movable between an attachment/detachment position where the toner cartridge is attachable to and detachable from the process cartridge; and a fixed position where the toner cartridge is fixed to the process cartridge. The interlocking mechanism is configured to pivotally move the toner cartridge to the attachment/detachment position when the top cover is moved to the second position, and to pivotally move the toner cartridge to the fixed position when the top cover is moved to the first position.
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公开(公告)号：US20240142908A1
公开(公告)日：2024-05-02
申请号：US18495877
申请日：2023-10-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： KENTA SHIBUKAWA , GO SHINDO
CPC classification number: G03G21/0011 , G03G15/0877 , G03G21/0088 , G03G2215/00679 , G03G2215/00729 , G03G2215/025
Abstract: An image forming apparatus includes an image bearing member, a developing device, a cleaning member, a collecting container having a discharge port for collecting a developer, and a control portion that can execute a supply mode in which a region of the image bearing member that is supplied with the developer from the developing device passes through the contact region with rotation of the image bearing member to allow the cleaning member to supply the developer into the collecting container. The discharge port is provided between a first end portion and a second end portion of the image bearing member in a direction of a rotation axis line of the image bearing member. The control portion performs control such that a portion of the region supplied with the developer in the supply mode overlaps, in the direction of the rotation axis line, a position where the discharge port is provided.
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Patent Agency Ranking
公开(公告)号：US11951746B2
公开(公告)日：2024-04-09
申请号：US17429748
申请日：2020-03-06
Applicant: James R. Pryde , Mark Smith , Robert Hargreaves
Inventor： James R. Pryde , Mark Smith , Robert Hargreaves
CPC classification number: B41J2/17523 , G03G15/0877
Abstract: A device (1) for controlling user access to at least one container (4) for dispensing printing material housed by a printing apparatus (5), the device (1) comprising an openable and closable barrier (2) corresponding to the container (4) and a lock for locking the barrier (2) in a closed position. The lock is overlapped by at least a portion of the barrier (2) both when the barrier (2) is in the closed position and when the barrier (2) is in an open position.
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公开(公告)号：US11822266B2
公开(公告)日：2023-11-21
申请号：US17542529
申请日：2021-12-06
Inventor： Tsutomu Sato
CPC classification number: G03G15/0889 , G03G15/087 , G03G15/0863 , G03G15/0865 , G03G15/0875 , G03G15/0877 , G03G21/1647 , G03G21/1676 , G03G2215/0695 , G03G2221/163 , G03G2221/1657
Abstract: A toner cartridge comprises a toner container which contains toner, a driving member which rotationally drives a conveying member, an agitating member which agitates a toner in the toner container while being rotated, a driven member which rotates in association with the driving member which is for rotationally driving the agitating member, and a rotational body which rotates according to rotation of the driven member, has a plurality of slits in rotational circumference for identifying a type of the toner cartridge, and has 1/K or more of the slits when a ratio of a rotational speed R1 (rad/s) of the driving member and a rotational speed R2 (rad/s) of the driven member is K=R2/R1.
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公开(公告)号：US20230367239A1
公开(公告)日：2023-11-16
申请号：US18225206
申请日：2023-07-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Naoya Asanuma , Takatoshi Hamada , Masato Tanabe , Tomofumi Kawamura , Yusuke Atsu
CPC classification number: G03G15/0865 , G03G15/0877 , G03G15/0889 , G03G15/0875 , G03G21/206 , G03G21/1647 , G03G2221/1657
Abstract: A toner cartridge includes a toner accommodation chamber containing toner, a toner discharging chamber having a discharge opening for discharging the toner, and a passage for fluid communication between the toner accommodation chamber and the toner discharging chamber. The toner cartridge also includes a screw, with at least a part of the screw being positioned in the passage. In a first cross-sectional plane perpendicular to a toner feeding direction of the screw, a minimum cross-sectional area of the passage is Asmin, and in a second cross-sectional plane perpendicular to the toner feeding direction, the toner accommodation chamber has a cross-sectional area Cs that is larger than Asmin.
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公开(公告)号：US20230333500A1
公开(公告)日：2023-10-19
申请号：US18027833
申请日：2020-09-28
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jinhwa HONG , Jiwon MOON , Byeongno JEONG , Shinhyup KANG , Sungchul AHN , Seung il KIM
IPC: G03G15/08
CPC classification number: G03G15/0877 , G03G15/0894
Abstract: A toner refill cartridge includes a body to contain toner and having a toner discharge port provided at a first end portion of the body, a memory unit including an external electric contact which faces away from the body, a piston disposed in the body to be movable in a longitudinal direction of the body from a top dead position adjacent to a second end portion of the body to a bottom dead position adjacent to the first end portion to push the toner to the toner discharge port, and a plunger to push the piston in the longitudinal direction and movable to a folded position in which the plunger is parallel with the body and covers the external electric contact and to an extended position in which the plunger is aligned with the piston in the longitudinal direction.
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公开(公告)号：US20230305409A1
公开(公告)日：2023-09-28
申请号：US17940112
申请日：2022-09-08
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Atsushi Sugawara , Shinya Sakamoto
CPC classification number: G03G9/0804 , G03G9/0819 , G03G9/08711 , G03G9/08755 , G03G9/09708 , G03G9/0975 , G03G9/09364 , G03G9/09371 , G03G9/09328 , G03G15/0877
Abstract: A method for producing a toner for developing an electrostatic charge image includes preparing a dispersion that contains first resin particles; forming first aggregated particles at a pH of less than 7.0 by adding an aggregating agent to the dispersion so as to aggregate the first resin particles; forming second aggregated particles by adding second resin particles to the dispersion that has undergone the forming of the first aggregated particles so as to aggregate the second resin particles onto the first aggregated particles; adjusting a pH of the dispersion that has undergone the forming of the second aggregated particles to 7.0 or more so as to prepare a dispersion of aggregated particles in which aggregation of the resin particles has been terminated; adding an anionic surfactant to the dispersion having a pH adjusted to 7.0 or more; and forming core-shell toner particles by heating the dispersion containing the anionic surfactant so as to fuse and coalesce the aggregated particles in which aggregation of the resin particles has been terminated. Releasing agent particles are added to the dispersion during the preparing of the dispersion or during the forming of the second aggregated particles, or during both the preparing of the dispersion and the forming of the second aggregated particles.
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