Fixing device and image forming apparatus including the same

    公开(公告)号:US09632462B2

    公开(公告)日:2017-04-25

    申请号:US15132537

    申请日:2016-04-19

    Inventor: Shinji Yamane

    CPC classification number: G03G15/2017

    Abstract: An electricity removing unit 50 includes a rotating roller part 51, a brush part 52, a driving part, and a restraint member. The brush part 52 includes a plurality of conductive fiber bristles 52a having base end portions connected to a peripheral surface of the rotating roller part 51. The driving part rotationally drives the rotating roller part 51. The restraint member abuts the brush part 52 from a rotation downstream side, thereby inclining the plurality of conductive fiber bristles 52a to an upstream side from a downstream side of a rotational direction toward a radial outside and thus reforming them. In this way, the restraint member restrains a distance between a front end of each conductive fiber bristle 52a and the peripheral surface of the rotating roller part 51 to a setting distance set in advance.

    Transfer device and image forming apparatus comprising the same
    2.
    发明授权
    Transfer device and image forming apparatus comprising the same 有权
    转印装置和包括该装置的图像形成装置

    公开(公告)号:US09046828B2

    公开(公告)日:2015-06-02

    申请号:US13956594

    申请日:2013-08-01

    CPC classification number: G03G15/1665 G03G15/1675 G03G15/168

    Abstract: An image forming apparatus includes an image carrying member, a transport belt, a driving roller, a transferring member, a nip portion, and an applying portion. The transferring member makes contact with the inner circumferential surface of the transport belt to press the transport belt against the image carrying member. The nip portion is formed between the transport belt and the image carrying member by the pressure of the transferring member. The applying portion applies a bias to the transferring member. Application of the bias to the transferring member causes, at the nip portion, the toner image carried on the image carrying member to be transferred to the recording medium carried on the transport belt. Near the nip portion, a pair of support members are arranged which keeps both width-direction end parts of the transport belt in contact with the image carrying member.

    Abstract translation: 图像形成装置包括图像承载构件,输送带,驱动辊,转印构件,夹持部和施加部。 传送构件与传送带的内圆周表面接触以将传送带压靠在图像承载构件上。 夹持部分通过转印部件的压力形成在输送带和图像承载部件之间。 施加部分向转印构件施加偏压。 将偏压施加到转印部件上会使承载在图像承载部件上的调色剂图像转印到传送带上的记录介质上。 在压合部附近,布置有保持传送带的宽度方向端部与图像承载部件接触的一对支撑部件。

    DEVELOPING DEVICE, IMAGE FORMING APPARATUS, MAGNETIC POLE POSITION CORRECTING METHOD

    公开(公告)号:US20180173157A1

    公开(公告)日:2018-06-21

    申请号:US15838128

    申请日:2017-12-11

    CPC classification number: G03G21/1676 G03G15/0921 G03G21/1604 G03G2215/0619

    Abstract: A developing device includes a developing roller and a developing magnetic pole. The developing roller is disposed to face an image carrier across a predetermined gap. The developing magnetic pole is provided in the developing roller so as to be displaced between first and second magnetic pole positions. When the developing magnetic pole is at the first magnetic pole position, a magnetic field is generated at a first position in the gap. When the developing magnetic pole is at the second magnetic pole position, a magnetic field is generated at a second position in the gap. When a circumferential speed ratio of the developing roller to the image carrier is increased, the developing magnetic pole is displaced toward the second magnetic pole position, and when the circumferential speed ratio is decreased, the developing magnetic pole is displaced toward the first magnetic pole position.

    IMAGE FORMING APPARATUS CAPABLE OF PREVENTING FINE PARTICLES FROM FLOWING OUT OF APPARATUS, IMAGE FORMING METHOD

    公开(公告)号:US20190163122A1

    公开(公告)日:2019-05-30

    申请号:US16174047

    申请日:2018-10-29

    Inventor: Shinji Yamane

    CPC classification number: G03G21/206 B65H29/125 B65H37/00 G03G15/2028

    Abstract: An image forming apparatus includes a fixing portion, a sheet conveying portion, a first airflow generating portion, a setting processing portion, and a first drive processing portion. The fixing portion heats a sheet on which a toner image has been transferred to fix the toner image to the sheet. The sheet conveying portion conveys a sheet along a conveyance path that leads to a sheet discharge port via the fixing portion. The first airflow generating portion includes a first fan and generates an airflow flowing upstream from the fixing portion in a conveyance direction of the sheet. The setting processing portion sets a drive speed of the first fan based on either or both of a sheet size, and a conveyance interval at which the sheet conveying portion conveys the sheet. The first drive processing portion drives the first fan at the drive speed set by the setting processing portion.

    Developing device, image forming apparatus, magnetic pole position correcting method

    公开(公告)号:US10082764B2

    公开(公告)日:2018-09-25

    申请号:US15838128

    申请日:2017-12-11

    CPC classification number: G03G21/1676 G03G15/0921 G03G21/1604 G03G2215/0619

    Abstract: A developing device includes a developing roller and a developing magnetic pole. The developing roller is disposed to face an image carrier across a predetermined gap. The developing magnetic pole is provided in the developing roller so as to be displaced between first and second magnetic pole positions. When the developing magnetic pole is at the first magnetic pole position, a magnetic field is generated at a first position in the gap. When the developing magnetic pole is at the second magnetic pole position, a magnetic field is generated at a second position in the gap. When a circumferential speed ratio of the developing roller to the image carrier is increased, the developing magnetic pole is displaced toward the second magnetic pole position, and when the circumferential speed ratio is decreased, the developing magnetic pole is displaced toward the first magnetic pole position.

    Image forming apparatus capable of preventing fine particles from flowing out of apparatus and image forming method

    公开(公告)号:US10338523B2

    公开(公告)日:2019-07-02

    申请号:US16174047

    申请日:2018-10-29

    Inventor: Shinji Yamane

    Abstract: An image forming apparatus includes a fixing portion, a sheet conveying portion, a first airflow generating portion, a setting processing portion, and a first drive processing portion. The fixing portion heats a sheet on which a toner image has been transferred to fix the toner image to the sheet. The sheet conveying portion conveys a sheet along a conveyance path that leads to a sheet discharge port via the fixing portion. The first airflow generating portion includes a first fan and generates an airflow flowing upstream from the fixing portion in a conveyance direction of the sheet. The setting processing portion sets a drive speed of the first fan based on either or both of a sheet size, and a conveyance interval at which the sheet conveying portion conveys the sheet. The first drive processing portion drives the first fan at the drive speed set by the setting processing portion.

    Fixing device and image forming apparatus
    7.
    发明授权
    Fixing device and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号:US09310732B2

    公开(公告)日:2016-04-12

    申请号:US14737228

    申请日:2015-06-11

    Inventor: Shinji Yamane

    Abstract: The fixing device includes a fixing member heated from inside; and a pressing member forming a fixing nip with the fixing member. A toner image transferred on a sheet is heated and pressed so as to be fixed on the sheet at the fixing nip through which the sheet is nipped and conveyed. The fixing member includes, on an inner circumferential surface thereof, a heat absorbing layer containing heat-conductive fillers oriented in a direction intersecting with a conveying direction of the sheet.

    Abstract translation: 固定装置包括从内部加热的固定构件; 以及与固定构件形成定影辊隙的按压构件。 将转印在片材上的调色剂图像加热并按压以固定在片材被夹持并输送的定影夹持部分的片材上。 固定构件在其内周面上包括在与片材的输送方向相交的方向上取向的导热性填料的吸热层。

    Image forming apparatus having a suction device and a duct with ports having ventilation areas dependent on proximity to the suction device
    8.
    发明授权
    Image forming apparatus having a suction device and a duct with ports having ventilation areas dependent on proximity to the suction device 有权
    具有抽吸装置和管道的图像形成装置,其具有取决于与吸引装置接近的通气区域的端口

    公开(公告)号:US08831465B2

    公开(公告)日:2014-09-09

    申请号:US13762738

    申请日:2013-02-08

    CPC classification number: G03G21/10 G03G15/0898 G03G21/105 G03G21/206

    Abstract: The present application discloses an image forming apparatus for forming an image by means of toner. The image forming apparatus includes an image carrier including an image carrying surface to form an electrostatic latent image; a developing device which supplies the toner to the image carrying surface to form a toner image; and a suction device configured to create airflow for suctioning the toner scattered from the developing device. The developing device includes a duct configured to guide the airflow to the suction device. The duct includes a connection surface, to which the suction device is connected, and a suction surface provided with suction ports into which the toner flows. The suction ports aligned in a direction apart from the connection surface include different suction ports in ventilation area.

    Abstract translation: 本申请公开了一种通过调色剂形成图像的图像形成装置。 图像形成装置包括:图像载体,其包括图像承载表面以形成静电潜像; 显影装置,其将调色剂供应到图像承载表面以形成调色剂图像; 以及构造成产生用于吸引从显影装置散落的调色剂的气流的抽吸装置。 显影装置包括被配置为将气流引导到抽吸装置的管道。 所述管道包括连接所述抽吸装置的连接表面,以及设置有所述调色剂流入的吸入口的抽吸表面。 在与连接表面分离的方向上排列的吸入口在通气区域中包括不同的吸入口。

    IMAGE FORMING APPARATUS HAVING FUNCTIONS FOR SUCTIONING TONER
    9.
    发明申请
    IMAGE FORMING APPARATUS HAVING FUNCTIONS FOR SUCTIONING TONER 有权
    具有吸收功能的图像形成装置

    公开(公告)号:US20130216255A1

    公开(公告)日:2013-08-22

    申请号:US13762738

    申请日:2013-02-08

    CPC classification number: G03G21/10 G03G15/0898 G03G21/105 G03G21/206

    Abstract: The present application discloses an image forming apparatus for forming an image by means of toner. The image forming apparatus includes an image carrier including an image carrying surface to form an electrostatic latent image; a developing device which supplies the toner to the image carrying surface to form a toner image; and a suction device configured to create airflow for suctioning the toner scattered from the developing device. The developing device includes a duct configured to guide the airflow to the suction device. The duct includes a connection surface, to which the suction device is connected, and a suction surface provided with suction ports into which the toner flows. The suction ports aligned in a direction apart from the connection surface include different suction ports in ventilation area.

    Abstract translation: 本申请公开了一种通过调色剂形成图像的图像形成装置。 图像形成装置包括:图像载体,其包括图像承载表面以形成静电潜像; 显影装置,其将调色剂供应到图像承载表面以形成调色剂图像; 以及构造成产生用于吸引从显影装置散落的调色剂的气流的抽吸装置。 显影装置包括被配置为将气流引导到抽吸装置的管道。 所述管道包括连接所述抽吸装置的连接表面,以及设置有所述调色剂流入的吸入口的抽吸表面。 在与连接表面分离的方向上排列的吸入口在通气区域中包括不同的吸入口。

Patent Agency Ranking