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1.发明授权公开(公告)号：US12045004B2
公开(公告)日：2024-07-23
申请号：US18461819
申请日：2023-09-06
发明人： Toshiaki Takeuchi , Koichi Ooishi , Hiroki Shimizu
CPC分类号： G03G21/1676 , G03G15/0808 , G03G21/1821 , G03G21/1828 , G03G2221/163 , G03G2221/1861
摘要： A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.
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公开(公告)号：US11846909B2
公开(公告)日：2023-12-19
申请号：US17816623
申请日：2022-08-01
发明人： Shougo Sato
CPC分类号： G03G21/1676 , G03G21/1623 , G03G21/1633 , G03G21/1647 , G03G21/1666 , G03G21/18 , G03G2221/163
摘要： An image forming apparatus includes: a main casing; a drum cartridge; and a developing cartridge. The drum cartridge includes a photosensitive drum having a rotational axis. The drum cartridge is drawable from the main casing in a first direction where the axis of the photosensitive drum extends. The developing cartridge is drawable from the main casing in the first direction. The developing cartridge includes: a developing roller; a front wall; and a first developing-device frame. The front wall is disposed at a downstream end of the developing cartridge in the first direction. The front wall has a first hole. The first developing-device frame supports the developing roller. The first developing-device frame includes a first boss extending in the first direction. The first boss goes through the first hole of the front wall.
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公开(公告)号：US11815842B2
公开(公告)日：2023-11-14
申请号：US17484297
申请日：2021-09-24
发明人： Masahiro Ishii , Fumio Morita
CPC分类号： G03G15/80 , G03G15/0865 , G03G15/55 , G03G21/1652 , G03G2221/163 , G03G2221/1823
摘要： A developer cartridge according to one aspect is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a main body having an opening, the main body comprising an electric circuit, a front cover configured to move to an opening position in which the opening of the main body is exposed and to a closing position in which the opening of the main body is closed, a first terminal electrically connected to the electric circuit, a photosensitive drum, and a developer cartridge comprising a developing roller, developing frame having a pressed portion, memory unit and second terminal. The front cover may include a pressing portion configured to press the pressed portion of the developing frame in a direction from the developing roller toward the photosensitive drum, and wherein the second terminal faces to the front cover when the front cover is in the closed position.
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公开(公告)号：US20230315004A1
公开(公告)日：2023-10-05
申请号：US18332064
申请日：2023-06-09
发明人： Masao ICHIYANAGI , Keita SHIMIZU
CPC分类号： G03G21/1676 , G03G15/751 , G03G21/1633 , G03G2221/163
摘要： An image forming apparatus includes a drum cartridge and developing cartridge. The drum cartridge may include a photosensitive drum rotatable about a first axis extending in an axial direction. The developing cartridge may include a developing roller rotatable about a second axis extending in the axial direction. The image forming apparatus may include a main casing including a slot extending in the axial direction. The image forming apparatus may include a first inner surface positioned inside of the slot, and a second inner surface positioned inside of the slot farther from the cover in the axial direction than the first inner surface from the cover in the axial direction. The first and second inner surfaces may be configured to press the developing roller toward the photosensitive drum.
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5.发明公开公开(公告)号：US20230305485A1
公开(公告)日：2023-09-28
申请号：US18314234
申请日：2023-05-09
发明人： Motoaki Mushika , Shougo Sato
IPC分类号： G03G21/16
CPC分类号： G03G21/1676 , G03G21/1623 , G03G21/1604 , G03G21/1619 , G03G2221/163 , G03G2221/1654 , G03G2221/1684 , G03G2221/1815
摘要： An image-forming device includes a main casing, a belt accommodated in the main casing, developing units arranged along the belt, a drawer configured to detachably support the developing units, the drawer configured to move to a position inside the main casing and to a position outside the main casing, and the drawer having a leading end and a trailing end in a pulling direction from the inside position to the outside position; and a guide configured to guide the drawer and to move between a first position and a second position when the drawer is at the inside position, the second position being farther from the belt than the first position from the belt. When the guide is at the second position, the guide is configured to be tilted downward relative to a horizontal direction such that the leading end is lower than the trailing end.
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公开(公告)号：US20180341193A1
公开(公告)日：2018-11-29
申请号：US15986263
申请日：2018-05-22
CPC分类号： G03G15/0812 , G03G15/095 , G03G21/1647 , G03G2221/163
摘要： A force for warping a regulating blade is imparted to the regulating blade in such a manner that a gap between a developer bearing member supported by a development frame member and the regulating blade attached to an attaching portion of the development frame member falls within a predetermined range over a longitudinal direction of the developer bearing member. The regulating blade is fixed to the attaching portion in a state in which the regulating blade is warped by the force imparted to the regulating blade and the gap is within the predetermined range over the longitudinal direction of the developer bearing member.
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公开(公告)号：US09933750B2
公开(公告)日：2018-04-03
申请号：US15473920
申请日：2017-03-30
发明人： Shougo Sato
CPC分类号： G03G21/1676 , G03G21/1623 , G03G21/1633 , G03G21/1647 , G03G21/1666 , G03G21/18 , G03G2221/163
摘要： An image forming apparatus includes: a casing; photosensitive drums juxtaposed with each other in a juxtaposed direction; developing units each including a developing roller; an opening-closing member; and a first contacting-separating member. The opening-closing member is movable between an open position and a closed position. The first contacting-separating member is provided at the opening-closing member and movable relative to the casing in the juxtaposed direction for moving, in a state where the opening-closing member is at the closed position, the developing roller between an adjacent position adjacent to or in contact with the corresponding photosensitive drums and a separated position spaced apart from the corresponding photosensitive drums.
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公开(公告)号：US20170176925A1
公开(公告)日：2017-06-22
申请号：US15381200
申请日：2016-12-16
发明人： Yuichi Sakakibara
IPC分类号： G03G15/04
CPC分类号： G03G21/1676 , G03G21/1609 , G03G21/1821 , G03G21/1853 , G03G2221/163 , G03G2221/1684 , G03G2221/1869
摘要： An image forming apparatus includes a main assembly; a rotatable photosensitive member; and a cartridge detachably mounted in the main assembly, the cartridge including a rotatable developer carrying sleeve for carrying a developer to be supplied to the photosensitive member and a developer accommodating portion for accommodating the developer to be supplied to the sleeve, wherein with respect to a mounting direction of the cartridge, the developer accommodating portion is disposed downstream of a rotation axis of the sleeve, and a developing portion where a surface of the sleeve is in contact with or closest to the photosensitive member is disposed downstream of the rotation axis of the sleeve or at the same position as the rotation axis of the sleeve.
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公开(公告)号：US20170131659A1
公开(公告)日：2017-05-11
申请号：US15404583
申请日：2017-01-12
发明人： Tsutomu SATO
IPC分类号： G03G15/08
CPC分类号： G03G15/0889 , G03G15/0863 , G03G15/0865 , G03G15/087 , G03G15/0875 , G03G15/0877 , G03G21/1647 , G03G21/1676 , G03G2215/0695 , G03G2221/163 , G03G2221/1657
摘要： 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：US09606497B2
公开(公告)日：2017-03-28
申请号：US14738252
申请日：2015-06-12
发明人： Masahiro Ishii , Fumio Morita
CPC分类号： G03G15/80 , G03G15/0865 , G03G15/55 , G03G21/1652 , G03G2221/163 , G03G2221/1823
摘要： A developer cartridge according to one aspect described herein is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a main body having an opening, the main body comprising an electric circuit, a front cover configured to move to an opening position in which the opening of the main body is exposed and to a closing position in which the opening of the main body is closed, a first terminal electrically connected to the electric circuit, a photosensitive drum, and a developer cartridge comprising a developing roller, developing frame having a pressed portion, memory unit and second terminal. The front cover may include a pressing portion configured to press the pressed portion of the developing frame in a direction from the developing roller toward the photosensitive drum, and wherein the second terminal faces to the front cover when the front cover is in the closed position.
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