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

    公开(公告)号:US6016418A

    公开(公告)日:2000-01-18

    申请号:US934136

    申请日:1997-09-19

    CPC分类号: G03G15/1675 G03G2215/0177

    摘要: An image forming apparatus includes an image bearing member for electrostatically bearing a toner image; a dielectric member movable along an endless path through a transfer position of the image bearing member; an electroconductive member in contact with the dielectric member at a side remote from the image bearing member, wherein the electroconductive member is supplied with a voltage having a polarity opposite from that of a charge polarity of the toner image to transfer the toner image from the image bearing member onto the dielectric member at the transfer position; wherein the electroconductive member is electrically grounded to generate an electric field for transferring the toner from the dielectric member to the image bearing member at the transfer position.

    摘要翻译: 图像形成装置包括用于静电承载调色剂图像的图像承载部件; 电介质构件,其沿着环形路径移动通过图像承载构件的转移位置; 与远离图像承载部件的一侧与电介质部件接触的导电部件,其中导电部件被提供具有与调色剂图像的极性相反的极性的电压,以从图像转印调色剂图像 承载构件在所述转移位置处到所述电介质构件上; 其中所述导电构件被电接地以产生电场,用于在所述转移位置将所述调色剂从所述电介质构件转印到所述图像承载构件。

    Image forming apparatus including a transfer medium bearing member
having a sheet member for bearing a transfer medium thereon
    3.
    发明授权
    Image forming apparatus including a transfer medium bearing member having a sheet member for bearing a transfer medium thereon 失效
    图像形成装置包括具有用于在其上承载转印介质的片状部件的转印介质承载部件

    公开(公告)号:US5600423A

    公开(公告)日:1997-02-04

    申请号:US426836

    申请日:1995-04-24

    IPC分类号: G03G15/01 G03G15/16

    CPC分类号: G03G15/1685

    摘要: An image forming apparatus has an image bearing member bearing images thereon and movable, and a transfer medium bearing member provided in pressure contact with the image bearing member and bearing a transfer medium thereon and rotatable. The transfer medium bearing member has a sheet member for bearing the transfer medium thereon, and an elastic layer supporting that area of the sheet member bearing the transfer medium thereon from the inside of the sheet member. A voltage is applied to the transfer medium bearing member to transfer the images on the image bearing member to the transfer medium born on the sheet member. The sheet member has an area not fixed to the elastic layer. The transfer medium bearing member is rotated with a potential difference created between the image bearing member and the sheet member before the operation of transferring the images on the image bearing member to the transfer medium born on the sheet member is started.

    摘要翻译: 图像形成装置具有在其上可运动的图像的图像承载部件和与图像承载部件压力接触并且可转动地设置有转印介质的转印介质承载部件。 转印介质承载构件具有用于在其上承载转印介质的片状构件,以及从板构件的内部支撑其上承载有转印介质的片状构件的区域的弹性层。 向转印介质承载部件施加电压,将图像承载部件上的图像转印到片材上的转印介质上。 片材具有未固定到弹性层的区域。 在将图像承载部件上的图像转印到片状部件上的转印介质的操作开始之前,转印介质承载部件在图像承载部件和片材部件之间产生的电位差旋转。

    Image forming apparatus comprising a mechanism for positioning a
rotatable member and a transfer drum
    4.
    发明授权
    Image forming apparatus comprising a mechanism for positioning a rotatable member and a transfer drum 失效
    图像形成装置包括用于定位可旋转构件和转印鼓的机构

    公开(公告)号:US5715506A

    公开(公告)日:1998-02-03

    申请号:US412120

    申请日:1995-03-28

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

    CPC分类号: G03G15/167 G03G15/0131

    摘要: An image forming apparatus has a recording medium bearing member bearing a recording medium thereon and rotatable, the recording medium bearing member having in the surface thereof a recess extending in the direction of the rotary shaft thereof, image formation being effected on the recording medium born on the recording medium bearing member, and a rotatable member abutted against the recording medium bearing member, the rotatable member being provided with a abutting portion abutted against the recording medium bearing member, and a regulating portion adapted to abut against the recording medium bearing member when the recess and the rotatable member become opposed to each other. Thus, the distance between the recess and the bearing portion, is regulated the rotatable member being movable between a first position in which the abutting portion abuts against the recording medium bearing member and a second position in which the regulating portion abuts against the recording medium bearing member. The regulating portion is spaced apart from the recording medium bearing member when the abutting portion is abutted against the recording medium bearing member.

    摘要翻译: 图像形成装置具有记录介质承载部件,该记录介质承载部件在其上可旋转地承载有记录介质,记录介质承载部件在其表面上具有沿其旋转轴的方向延伸的凹部,图像形成是在记录介质上生成的 所述记录介质承载部件和与所述记录介质承载部件抵接的可旋转部件,所述可旋转部件设置有抵靠所述记录介质承载部件的抵接部,以及限制部,其适于在所述记录介质承载部件 并且可旋转构件彼此相对。 因此,所述凹部与所述支承部之间的距离被调节,所述可旋转构件可在第一位置和第二位置之间移动,所述第一位置与所述抵接部抵靠在所述记录介质支承构件之间,所述第二位置中所述限制部分抵靠在所述记录介质轴承 会员。 当邻接部分抵靠记录介质承载部件时,调节部分与记录介质承载部件间隔开。

    Fixating device
    5.
    发明授权
    Fixating device 失效
    固定装置

    公开(公告)号:US5543904A

    公开(公告)日:1996-08-06

    申请号:US429240

    申请日:1995-04-25

    IPC分类号: G03G15/20 G05D23/19

    CPC分类号: G03G15/2039 G03G15/205

    摘要: A fixating device has a first rotatable member in contact with an unfixated image borne on a recording medium, a second rotatable member forming a nip together with the second rotatable member, a first heater for heating the first rotatable member, a second heater for heating the second rotatable member, and power supply controlling means for controlling the supply of electric power to the first heater and the second heater. The power supply controlling means is adapted to control the supply of electric power so that when the electric power supplied to the first heater is Wa and the electric power supplied to the second heater is Wb and the ratio when the recording medium is nipped between and conveyed by the first rotatable member and the second rotatable member is Dp=Wa/Wb and the ratio during standby is Ds=Wa/Wb, there may be established Dp>Ds.

    摘要翻译: 固定装置具有与承载在记录介质上的未分离图像接触的第一可旋转构件,与第二可旋转构件一起形成压区的第二可旋转构件,用于加热第一可旋转构件的第一加热器,用于加热第一可旋转构件的第二加热器 第二可旋转构件和用于控制向第一加热器和第二加热器供电的电源控制装置。 电源控制装置适于控制电力供应,使得当提供给第一加热器的电力为Wa并且供应给第二加热器的电力为Wb时,以及当记录介质被夹持并传送时的比率 通过第一可旋转构件和第二可旋转构件是Dp = Wa / Wb,并且待机期间的比例是Ds = Wa / Wb,可以建立Dp> Ds。