Image forming apparatus and cleaning method for contact-charging member
    1.
    发明授权
    Image forming apparatus and cleaning method for contact-charging member 失效
    接触充电元件的成像设备和清洁方法

    公开(公告)号:US5999773A

    公开(公告)日:1999-12-07

    申请号:US96467

    申请日:1998-06-12

    IPC分类号: G03G15/02 G03G21/00

    摘要: An image forming apparatus includes a rotatable image bearing member and a contact-charging member which contacts a surface of the image bearing member. The contact-charging member can charge the image bearing member by applying a predetermined voltage to the contact-charging member so that a potential of the contact-charging member is changed to a required potential for transferring a residual toner that is stuck on a surface of the contact-charging member facing the image bearing member onto the image bearing member while the image bearing member stops rotating. A method for removing residual toner sticking onto a contact-charging member that contacts a surface of the image bearing member changes a potential of the contact charging member to a required cleaning potential for transferring the residual toner sticking to a surface of the contact-charging member facing the image bearing member onto the contact-charging member while the image bearing member stops rotating. The residual toner is then transferred from the surface of the contact-charging member facing the image bearing member onto the image bearing member, and the residual toner sticking to the surface of the contact-charging member facing the image bearing member is then removed.

    摘要翻译: 图像形成装置包括可旋转图像承载部件和与图像承载部件的表面接触的接触充电部件。 接触充电部件可以通过向接触充电部件施加预定的电压来对图像承载部件进行充电,使得接触充电部件的电位变为所需的电位,用于转移粘附在接触充电部件的表面上的残留调色剂 所述接触充电构件在图像承载构件停止旋转的同时面向图像承载构件到图像承载构件上。 粘附在与图像承载部件的表面接触的接触充电部件上的残留调色剂的方法将接触充电部件的电位改变为所需的清洁电位,以将残留调色剂粘附到接触充电部件的表面上 当图像承载部件停止旋转时,将图像承载部件朝向接触充电部件。 然后将残留的调色剂从面向图像承载部件的接触充电部件的表面转印到图像承载部件上,然后除去粘附到面向图像承载部件的接触充电部件的表面的残留调色剂。

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08699096B2

    公开(公告)日:2014-04-15

    申请号:US12326473

    申请日:2008-12-02

    IPC分类号: H04N1/04 G02B26/08

    摘要: A deflector deflects a light beam from a light source. A scanning optical system focuses the light beam deflected by the deflector. An image carrying member is located at a focal position of the light beam and includes a surface that is scanned in a main scanning direction with the light beam focused by the scanning optical system. One pixel of an image is formed by a plurality of light spots having different focal positions in at least a sub-scanning direction. At least one light spot from among the light spots is formed on the surface of the image carrying member at a scan timing different from those of rest of the light spots.

    摘要翻译: 偏转器偏转来自光源的光束。 扫描光学系统对偏转器偏转的光束进行聚焦。 图像承载构件位于光束的焦点位置处,并且包括在主扫描方向上被扫描光学系统聚焦的光束扫描的表面。 图像的一个像素在至少副扫描方向上由具有不同焦点位置的多个光点形成。 在与其余的光点不同的扫描定时,在图像承载部件的表面上形成有来自光斑的至少一个光点。

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

    公开(公告)号:US20090141316A1

    公开(公告)日:2009-06-04

    申请号:US12326473

    申请日:2008-12-02

    IPC分类号: H04N1/04

    摘要: A deflector deflects a light beam from a light source. A scanning optical system focuses the light beam deflected by the deflector. An image carrying member is located at a focal position of the light beam and includes a surface that is scanned in a main scanning direction with the light beam focused by the scanning optical system. One pixel of an image is formed by a plurality of light spots having different focal positions in at least a sub-scanning direction. At least one light spot from among the light spots is formed on the surface of the image carrying member at a scan timing different from those of rest of the light spots.

    摘要翻译: 偏转器偏转来自光源的光束。 扫描光学系统对偏转器偏转的光束进行聚焦。 图像承载构件位于光束的焦点位置处,并且包括在主扫描方向上被扫描光学系统聚焦的光束扫描的表面。 图像的一个像素在至少副扫描方向上由具有不同焦点位置的多个光点形成。 在与其余的光点不同的扫描定时,在图像承载部件的表面上形成有来自光斑的至少一个光点。

    Image forming apparatus for reducing toner scatter
    6.
    发明授权
    Image forming apparatus for reducing toner scatter 失效
    用于减少调色剂散射的图像形成装置

    公开(公告)号:US06947682B2

    公开(公告)日:2005-09-20

    申请号:US10625521

    申请日:2003-07-24

    IPC分类号: G03G15/01 G03G15/00 G03G15/16

    摘要: An image forming apparatus of the present invention includes an image carrier on which a toner image is to be formed, and a sheet support member for conveying a sheet, carrying the toner image thereon, in cooperation with the image carrier. The image carrier and sheet support member are driven such that their surfaces move in the same direction, as seen at a contact position where the two surfaces face each other via the sheet. An electric field, forcing the toner image toward the image carrier, and an electric field, forcing it toward the sheet, are formed between the surface of the image carrier and that of the sheet at positions upstream and downstream, respectively, of the contact position in the direction of movement of the sheet.

    摘要翻译: 本发明的图像形成装置包括:要在其上形成调色剂图像的图像载体和用于输送片材的片材支撑构件,用于与图像载体协作地携带调色剂图像。 驱动图像载体和片材支撑构件使得它们的表面沿着相同的方向移动,如在两个表面经由片材彼此面对的接触位置所看到的。 在图像载体的表面和分别在接触位置的上游和下游的位置的片材的表面之间形成有朝向图像载体强制调色剂图像的电场和迫使其朝向片材的电场 在片材的移动方向上。

    Configured to enhance toner collecting efficiency and toner redepositing
efficiency
    7.
    发明授权
    Configured to enhance toner collecting efficiency and toner redepositing efficiency 失效
    图像形成装置被配置为增强调色剂收集效率和调色剂再沉积效率

    公开(公告)号:US5740494A

    公开(公告)日:1998-04-14

    申请号:US699922

    申请日:1996-08-20

    IPC分类号: G03G21/00

    CPC分类号: G03G21/0064 G03G21/0005

    摘要: An image forming apparatus includes a cleaning member for collecting toner left on an image carrier after image transfer, and then redepositing it on the carrier, so that a developing unit can collect the redeposited toner to reuse it. Even when the frictional charging ability of the cleaning member falls due to aging or varying environment, the charge of the toner left on the image carrier is regulated to preselected polarity before the toner reaches the cleaning member, thereby enhancing a toner collecting efficiency and a toner redepositing efficiency. The charge of the toner redeposited on the image carrier and moved away from the cleaning member is regulated to preselected polarity while being increased, thereby reducing a load to act on the developing unit. The toner is redeposited on the image carrier efficiently without regard to the polarity of the toner collected by the cleaning member. The developing unit is allowed to collect all the toner redeposited on the image carrier, thereby freeing the background of an image from contamination. When the cleaning member collects the toner from the image carrier, the toner is prevented from being transferred from the cleaning member to the image carrier, thereby obviating defective cleaning. An image forming speed is increased by reducing the interval between consecutive image forming areas. A pressure is caused to act uniformly between the cleaning member and the image carrier in the axial direction of the roller, further enhancing the toner collecting efficiency and toner redepositing efficiency while obviating background contamination.

    摘要翻译: 图像形成装置包括用于在图像转印之后收集在图像载体上的调色剂的清洁部件,然后将其重新沉积在载体上,使得显影单元可以收集再沉积的调色剂以重新使用。 即使当清洁部件的摩擦带电能力由于老化或环境变化而降低时,在调色剂到达清洁部件之前,留在图像载体上的调色剂的电荷被调节为预选的极性,从而提高调色剂收集效率和调色剂 重新沉积效率。 再次沉积在图像载体上并移动离开清洁部件的调色剂的电荷在增加时被调节到预选的极性,从而减少作用于显影单元的负载。 调色剂有效地再沉积在图像载体上,而不考虑由清洁部件收集的调色剂的极性。 允许显影单元收集重新沉积在图像载体上的所有调色剂,从而释放图像的背景污染。 当清洁构件从图像载体收集调色剂时,防止调色剂从清洁构件转移到图像载体,从而避免了有缺陷的清洁。 通过减小连续的图像形成区域之间的间隔来增加图像形成速度。 导致压力在辊的轴向上在清洁构件和图像载体之间均匀地作用,进一步提高调色剂收集效率和调色剂再沉积效率,同时避免背景污染。

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

    公开(公告)号:US08275275B2

    公开(公告)日:2012-09-25

    申请号:US12582890

    申请日:2009-10-21

    IPC分类号: G03G15/00

    CPC分类号: G03G15/169

    摘要: An image forming apparatus including a latent image carrier, a charger to evenly charge a surface of the latent image carrier, a writing device to irradiate a charged surface of the latent image carrier to form an electrostatic latent image, a writing device control unit to control the writing device, a developing device to develop the electrostatic latent image to form a toner image, a transfer device to transfer the toner image onto a transferred member, and a pre-transfer irradiating device to irradiate the charged surface of the latent image carrier during a period after development and before transfer. The writing device control unit controls the writing device based on a target image signal A and an image signal B output a single rotation of the latent image carrier after output of the target image signal A in a sub-scanning direction.

    摘要翻译: 一种图像形成装置,包括潜像载体,对潜像载体的表面均匀充电的充电器,照射潜像载体的带电表面以形成静电潜像的写入装置,用于控制潜像载体的写入装置控制单元 书写装置,用于显影静电潜像以形成调色剂图像的显影装置,将调色剂图像转印到转印部件上的转印装置和用于在潜像载体的带电表面照射的预转印照射装置 发展后和转让前的一段时间。 写入装置控制单元基于目标图像信号A和在副扫描方向上输出目标图像信号A之后输出潜像载体的单次旋转的图像信号B来控制写入装置。

    IMAGE FORMING APPARATUS
    9.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20100098446A1

    公开(公告)日:2010-04-22

    申请号:US12582890

    申请日:2009-10-21

    IPC分类号: G03G15/043

    CPC分类号: G03G15/169

    摘要: An image forming apparatus including a latent image carrier, a charger to evenly charge a surface of the latent image carrier, a writing device to irradiate a charged surface of the latent image carrier to form an electrostatic latent image, a writing device control unit to control the writing device, a developing device to develop the electrostatic latent image to form a toner image, a transfer device to transfer the toner image onto a transferred member, and a pre-transfer irradiating device to irradiate the charged surface of the latent image carrier during a period after development and before transfer. The writing device control unit controls the writing device based on a target image signal A and an image signal B output a single rotation of the latent image carrier after output of the target image signal A in a sub-scanning direction.

    摘要翻译: 一种图像形成装置,包括潜像载体,对潜像载体的表面均匀充电的充电器,照射潜像载体的带电表面以形成静电潜像的写入装置,用于控制潜像载体的写入装置控制单元 书写装置,用于显影静电潜像以形成调色剂图像的显影装置,将调色剂图像转印到转印部件上的转印装置和用于在潜像载体的带电表面照射的预转印照射装置 发展后和转让前的一段时间。 写入装置控制单元基于目标图像信号A和在副扫描方向上输出目标图像信号A之后输出潜像载体的单次旋转的图像信号B来控制写入装置。