Developing device and image forming apparatus
    1.
    发明授权
    Developing device and image forming apparatus 有权
    显影装置和图像形成装置

    公开(公告)号:US09134652B2

    公开(公告)日:2015-09-15

    申请号:US13584019

    申请日:2012-08-13

    摘要: A developing device includes a developer carrying member, rotatable while carrying a developer, for supplying developer to an image bearing member, a developer supplying member, which is provided with a foam layer at its surface and is rotatable in contact with the developer carrying member, for supplying the developer to the developer carrying member, and a first gear for transmitting a driving force to the developer supplying member. The first gear is movable to a first position where the driving force is not transmitted to the developer supplying member and to a second position where the driving force is transmitted to the developer supplying member. During initial drive of the developer carrying member, the developer supplying member is rotated by a frictional force generated between the developer supplying member and the developer carrying member, with the first gear to be moved from the first position to the second position.

    摘要翻译: 显影装置包括显影剂承载构件,其可携带显影剂可旋转,用于向图像承载构件供应显影剂;显影剂供应构件,其在其表面处设置有泡沫层并且可旋转地与显影剂承载构件接触; 用于将显影剂供应到显影剂承载构件,以及用于将驱动力传递到显影剂供应构件的第一齿轮。 第一齿轮可移动到驱动力不传递到显影剂供应构件的第一位置和驱动力传递到显影剂供应构件的第二位置。 在显影剂承载构件的初始驱动期间,显影剂供应构件通过在显影剂供应构件和显影剂承载构件之间产生的摩擦力而旋转,第一齿轮将从第一位置移动到第二位置。

    Image forming apparatus
    2.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08532515B2

    公开(公告)日:2013-09-10

    申请号:US13371680

    申请日:2012-02-13

    IPC分类号: G03G15/16

    摘要: An image forming apparatus is operable in a mode in which a speed of an intermediary transfer belt is changed after all of the toner images are primary-transferred onto the intermediary transfer belt, and the toner image primary-transferred on the intermediary transfer belt is passed through a secondary transfer position and primary transfer position in this order to reach the secondary transfer position, where the toner image is secondary transferred onto the transfer material, and a controller for making, before the image forming apparatus is operated in the mode to change the speed of the intermediary transfer belt, a potential difference between the intermediary transfer belt and the photosensitive member at the primary transfer position smaller than a potential difference between the intermediary transfer belt and the photosensitive member when the toner image is primary transferred from the photosensitive member onto the intermediary transfer belt.

    摘要翻译: 图像形成装置可以在将所有调色剂图像初次转印到中间转印带上之后改变中间转印带的速度的方式操作,并且在中间转印带上一次转印的调色剂图像通过 通过二次转印位置和一次转印位置以达到二次转印位置,其中调色剂图像二次转印到转印材料上,以及控制器,用于在图像形成装置以改变方式进行操作之前, 中间转印带的速度,当将调色剂图像从感光构件初次转印到中间转印带和感光构件之间的中间转印带和感光构件之间的电位差小于中间转印带和感光构件之间的电位差时的电位差, 中间转印带。

    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
    3.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权
    开发设备和图像形成装置

    公开(公告)号:US20130045030A1

    公开(公告)日:2013-02-21

    申请号:US13584019

    申请日:2012-08-13

    IPC分类号: G03G15/08

    摘要: A developing device includes: a developer carrying member, rotatable while carrying a developer, for supplying the developer to an image bearing member; a developer supplying member, which is provided with a foam layer at its surface and is rotatable in contact to the developer carrying member, for supplying the developer to the developer carrying member; a first gear for transmitting a driving force to the developer supplying member; and a pressing member for pressing the first gear so that the first gear is, during initial drive of the developer carrying member, moved from a first position where the driving force is not transmitted to the developer supplying member to a second position where the driving force is transmitted to the developer supplying member.

    摘要翻译: 显影装置包括:显影剂承载构件,可携带显影剂可旋转,用于将显影剂供应到图像承载构件; 显影剂供应构件,其在其表面处设置有泡沫层并且可旋转地与显影剂承载构件接触,用于将显影剂供应到显影剂承载构件; 用于将驱动力传递到显影剂供应构件的第一齿轮; 以及用于按压所述第一齿轮的按压构件,使得所述第一齿轮在所述显影剂承载构件的初始驱动期间从所述驱动力未传递到所述显影剂供应构件的第一位置移动到所述驱动力的第二位置 被传送到显影剂供应构件。

    IMAGE FORMING APPARATUS
    4.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20120155903A1

    公开(公告)日:2012-06-21

    申请号:US13371680

    申请日:2012-02-13

    IPC分类号: G03G15/16

    摘要: An image forming apparatus is operable in a mode in which a speed of an intermediary transfer belt is changed after all of the toner images are primary-transferred onto the intermediary transfer belt, and the toner image primary-transferred on the intermediary transfer belt is passed through a secondary transfer position and primary transfer position in this order to reach the secondary transfer position, where the toner image is secondary transferred onto the transfer material, and a controller for making, before the image forming apparatus is operated in the mode to change the speed of the intermediary transfer belt, a potential difference between the intermediary transfer belt and the photosensitive member at the primary transfer position smaller than a potential difference between the intermediary transfer belt and the photosensitive member when the toner image is primary transferred from the photosensitive member onto the intermediary transfer belt.

    摘要翻译: 图像形成装置可以在将所有调色剂图像初次转印到中间转印带上之后改变中间转印带的速度的方式操作,并且在中间转印带上一次转印的调色剂图像通过 通过二次转印位置和一次转印位置以达到二次转印位置,其中调色剂图像二次转印到转印材料上,以及控制器,用于在图像形成装置以改变方式进行操作之前, 中间转印带的速度,当将调色剂图像从感光构件初次转印到中间转印带和感光构件之间的中间转印带和感光构件之间的电位差小于中间转印带和感光构件之间的电位差时的电位差, 中间转印带。

    IMAGE FORMING APPARATUS
    5.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20120045225A1

    公开(公告)日:2012-02-23

    申请号:US13211193

    申请日:2011-08-16

    IPC分类号: G03G15/08 G03G15/01

    摘要: In a rotary-type image forming apparatus in which detection of electrostatic capacitance is performed when a developing apparatus is in a posture less affected by a toner density within the developing apparatus, a toner in the developing apparatus, which is located at a development position during the detection of the electrostatic capacitance, is avoided from being uselessly consumed. The image forming apparatus has a remaining amount detection mode of detecting a toner remaining amount on condition that a developing roller of one developing apparatus positioned opposite to another developing apparatus, for which the toner remaining amount is to be detected, stands by in a state spaced from a drum.

    摘要翻译: 在显影装置处于不受显影装置内的调色剂密度影响的姿势下进行静电电容检测的旋转型图像形成装置中,在显影装置中位于显影位置的调色剂 防止静电电容的检测被无用地消耗。 图像形成装置具有检测调色剂剩余量的剩余量检测模式,其条件是,与要检测调色剂剩余量的另一显影装置相对的一个显影装置的显影辊处于间隔的状态 从鼓。

    Image forming apparatus
    6.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08699894B2

    公开(公告)日:2014-04-15

    申请号:US13211193

    申请日:2011-08-16

    IPC分类号: G03G15/08

    摘要: In a rotary-type image forming apparatus in which detection of electrostatic capacitance is performed when a developing apparatus is in a posture less affected by a toner density within the developing apparatus, a toner in the developing apparatus, which is located at a development position during the detection of the electrostatic capacitance, is avoided from being uselessly consumed. The image forming apparatus has a remaining amount detection mode of detecting a toner remaining amount on condition that a developing roller of one developing apparatus positioned opposite to another developing apparatus, for which the toner remaining amount is to be detected, stands by in a state spaced from a drum.

    摘要翻译: 在显影装置处于不受显影装置内的调色剂密度影响的姿势下进行静电电容检测的旋转型图像形成装置中,在显影装置中位于显影位置的调色剂 防止静电电容的检测被无用地消耗。 图像形成装置具有检测调色剂剩余量的剩余量检测模式,其条件是,与要检测调色剂剩余量的另一显影装置相对的一个显影装置的显影辊处于间隔的状态 从鼓。

    IMAGE FORMING APPARATUS
    7.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20100239289A1

    公开(公告)日:2010-09-23

    申请号:US12722975

    申请日:2010-03-12

    IPC分类号: G03G15/08

    摘要: In an image forming apparatus of a rotary type, when a pause is made during continuous image formation, the time taken to restart image formation after the pause is shortened so as to reduce stress on the user. In the image forming apparatus, it is determined beforehand whether the next image formation mode is a color mode or a mono mode, and a developing device to be first used in the next image formation mode is moved to a developing standby position.

    摘要翻译: 在旋转型的图像形成装置中,当在连续图像形成期间进行暂停时,缩短在暂停之后重新开始成像所花费的时间,从而减轻对用户的压力。 在图像形成装置中,预先确定下一图像形成模式是彩色模式还是单声道模式,并且将在下一图像形成模式中首先使用的显影装置移动到显影待机位置。

    Image forming apparatus
    8.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08811833B2

    公开(公告)日:2014-08-19

    申请号:US13395845

    申请日:2010-10-18

    IPC分类号: G03G15/08

    摘要: An image forming apparatus includes a developing device, a detection mode execution unit, and a notice signal generating unit. The developing device supplies a toner bearing member with toner in a container by rotating a toner supply member in a contact manner with the toner bearing member. The detection mode execution unit executes a detection mode in which a predetermined period for changing a toner amount in the foam layer by rotating the toner supply member is provided, a capacitance C1 between the first and second electrode members is detected before the predetermined period, and a capacitance C2 between the first and second electrode members is detected after the predetermined period. The notice signal generating unit generates a low toner amount notice signal in response to an absolute value |C1−C2| of a difference between the capacitances C1 and C2 being smaller than a predetermined threshold.

    摘要翻译: 图像形成装置包括显影装置,检测模式执行单元和通知信号生成单元。 显影装置通过使调色剂供给构件以与调色剂承载构件接触的方式旋转而向容器中的调色剂承载构件提供调色剂。 检测模式执行单元执行检测模式,其中提供用于通过旋转调色剂供应构件来改变泡沫层中的调色剂量的预定周期,在预定时段之前检测第一和第二电极构件之间的电容C1, 在预定时间段之后检测第一和第二电极部件之间的电容C2。 通知信号发生单元响应于绝对值| C1-C2 |产生低调色剂量通知信号 电容C1和C2之间的差小于预定阈值。

    Image forming apparatus controlling standby positions of developing devices
    9.
    发明授权
    Image forming apparatus controlling standby positions of developing devices 有权
    图像形成装置控制显影装置的待机位置

    公开(公告)号:US08488997B2

    公开(公告)日:2013-07-16

    申请号:US12722975

    申请日:2010-03-12

    IPC分类号: G03G15/01

    摘要: In an image forming apparatus of a rotary type, when a pause is made during continuous image formation, the time taken to restart image formation after the pause is shortened so as to reduce stress on the user. In the image forming apparatus, it is determined beforehand whether the next image formation mode is a color mode or a mono mode, and a developing device to be first used in the next image formation mode is moved to a developing standby position.

    摘要翻译: 在旋转型的图像形成装置中,当在连续图像形成期间进行暂停时,缩短在暂停之后重新开始成像所花费的时间,从而减轻对用户的压力。 在图像形成装置中,预先确定下一图像形成模式是彩色模式还是单声道模式,并且将在下一图像形成模式中首先使用的显影装置移动到显影待机位置。

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20110268468A1

    公开(公告)日:2011-11-03

    申请号:US13087871

    申请日:2011-04-15

    IPC分类号: G03G15/16

    CPC分类号: G03G15/161 G03G21/0011

    摘要: The image forming apparatus includes an image bearing member; a transfer belt used to transfer a toner image from the image bearing member to a transfer material; a transfer unit adapted to form a transfer nip in conjunction with the image bearing member through the transfer belt; and a control part adapted to control a rotation direction of the transfer belt, wherein in a cleaning mode, the control part rotates the transfer belt in a direction opposite to the rotation direction of the transfer belt during image formation at least by an amount equal to or larger than width of the transfer nip in the rotation direction of the transfer belt. This prevents foreign material from being trapped between the transfer belt such as an intermediate transfer belt or transfer material conveyance belt and a sheet member and thereby reduces density irregularities in a longitudinal direction of the belt.

    摘要翻译: 图像形成装置包括图像承载部件; 用于将调色剂图像从图像承载部件转印到转印材料的转印带; 转印单元,其适于通过转印带与图像承载部件一起形成转印辊隙; 以及适于控制转印带的旋转方向的控制部件,其中在清洁模式中,控制部件在图像形成期间沿与转印带的旋转方向相反的方向旋转至少等于 或大于转印带旋转方向上转印辊隙的宽度。 这样可以防止异物被中间转印带或转印材料输送带等转印带和纸张片之间的捕获,从而降低带的长度方向的密度不均匀。