Developing device and image forming apparatus

    公开(公告)号:US09989891B2

    公开(公告)日:2018-06-05

    申请号:US15218231

    申请日:2016-07-25

    CPC classification number: G03G15/0893 G03G15/0865

    Abstract: A developing device includes a storage unit that stores developer to be used to form a developer image on an image carrier, the developer containing toner and carrier, an auxiliary storage unit that stores the developer and is connected to the storage unit via a first opening from which the developer is supplied into the storage unit and a second opening from which the developer in the storage unit is taken in, a first transport member provided at the first opening to transport the developer in the auxiliary storage unit into the storage unit, a second transport member provided at the second opening to transport the developer in the storage unit into the auxiliary storage unit, and a supply unit that has an opening opposed to the first transport member and supplies toner to the developer transported from the auxiliary storage unit into the storage unit.

    Developing device and image forming apparatus

    公开(公告)号:US09989890B2

    公开(公告)日:2018-06-05

    申请号:US15397308

    申请日:2017-01-03

    Inventor: Hiroki Mori

    CPC classification number: G03G15/0889 G03G15/0812 G03G15/0865

    Abstract: A developing device and an image forming apparatus including the developing device are provided. The developing device includes a housing, a developer carrier which is rotatably supported by the housing, and which carries developer on a circumferential surface thereof, a layer thickness regulating member which includes, a blade contacting the circumferential surface of the developer carrier along a rotational axial direction of the developer carrier, and a support member supporting the blade, the layer thickness regulating member for regulating a layer thickness of the developer on the circumferential surface of the developer carrier. The support member includes: a contact part which contacts the blade; and a pair of attachment parts which are attached to the housing. The attachment parts are provide at both sides of the contact part in the rotational axial direction and are further protruded than the contact part in a direction away from the developer carrier.

    Image forming apparatus having reverse developer feeding

    公开(公告)号:US09983511B2

    公开(公告)日:2018-05-29

    申请号:US15298402

    申请日:2016-10-20

    Abstract: A developing apparatus for developing an electrostatic latent image formed on an image bearing member includes a developer carrying member, first and second accommodation chambers to accommodate developer, and a feeding screw provided in the first accommodation chamber to feed the developer. In addition, a developer accommodation portion accommodates the developer to be supplied to the first accommodation chamber and is sealed by a sealing member. A controller executes an operation in a mode in which after the developer accommodating portion starts to be unsealed at the sealing member, the feeding screw is initially rotated for a predetermined period in a direction opposite to a normal direction in which the feeding screw is rotated during the image forming operation, and after elapse of the predetermined period, the feeding screw is rotated in the normal direction.

    Toner container including joint coupled with image forming apparatus

    公开(公告)号:US09964895B2

    公开(公告)日:2018-05-08

    申请号:US15393031

    申请日:2016-12-28

    Inventor: Masaki Murashima

    Abstract: A toner container includes a container main body, a first conveyance member rotatably provided in the container main body, a first bearing hole rotatably supports a rotation shaft of the first conveyance member in a state where the rotation shaft of the first conveyance member passes through the first bearing hole and extends outside, and a first input joint provided on an end portion of a rotation shaft of the first conveyance member in an attachment portion side, and coupled with a first drive coupling portion of the attachment portion. The first drive coupling portion includes a plurality of engaging pieces. The first input joint includes a plurality of projection pieces configured to be respectively coupled with the plurality of engaging pieces. Among the plurality of projection pieces, at least one first piece is longer than the other second piece(s) in a projection direction of the projection shaft.

    IMAGE FORMING APPARATUS
    75.
    发明申请

    公开(公告)号:US20180120763A1

    公开(公告)日:2018-05-03

    申请号:US15794284

    申请日:2017-10-26

    Abstract: An apparatus includes an opening/closing member that opens/closes space which is provided in an apparatus body and in which a first unit and a second unit are accommodated; a first guide portion that guides the first unit in the space; a second guide portion that guides the second unit in the space; and a slope member that is capable of guiding the first unit to the first guide portion provided at a position higher than a position of the second guide portion in a height direction orthogonal to an inserting/extracting direction of the space when the opening/closing member is put in an open position, the slope member being coupled between the apparatus body and the opening/closing member so as to be positioned in the space when the opening/closing member is put in a closed position to close the space.

    TONER CASE AND IMAGE FORMING APPARATUS
    76.
    发明申请

    公开(公告)号:US20180120760A1

    公开(公告)日:2018-05-03

    申请号:US15791468

    申请日:2017-10-24

    CPC classification number: G03G21/1647 G03G15/0865 G03G21/1652 G03G2215/0827

    Abstract: A toner case includes a case main body, a rotator, a transmitter and a turner. The rotator is stored in the case main body and rotates around a rotation axis. The transmitter transmits rotation to the rotator. A part of the transmitter is exposed to an outside of the case main body. The turner is provided at an outside of the case main body in a rotation axis direction. The turner is turnable between a first posture and a second posture. At least a part of the turner is moved to an outside in the rotation axis direction as the turner turns from the first posture to the second posture. The transmitter moves from a first position to a second position which is arranged at an outside of the first position in the rotation axis direction as the turner turns from the first posture to the second posture.

    IMAGE FORMING APPARATUS
    78.
    发明申请

    公开(公告)号:US20180107143A1

    公开(公告)日:2018-04-19

    申请号:US15729950

    申请日:2017-10-11

    Abstract: Provided is an image forming apparatus, including: a developer containing unit configured to contain developer; a developer bearing member, which is rotatably provided in the developer containing unit, and is configured to bear the developer; a driving unit configured to drive the developer bearing member; and a control unit configured to control the driving unit so that, when rotation of the developer bearing member is stopped after an image forming operation is terminated, drive transmission to the developer bearing member is turned off after a rotational speed of the developer bearing member is reduced to a set rotational speed lower than a rotational speed of the developer bearing member during the image formation while performing the drive transmission to the developer bearing member.

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