Developer regulating member and developing apparatus
    21.
    发明授权
    Developer regulating member and developing apparatus 失效
    显影剂调节构件和显影装置

    公开(公告)号:US5893013A

    公开(公告)日:1999-04-06

    申请号:US859479

    申请日:1997-05-20

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0812

    摘要: A developer regulating member includes a thin plate having a spring property and a polyamide-containing rubber layer disposed on the thin plate. The polyamide-containing rubber layer contains a polyamide having the Shore D hardness between 25 and 65 both inclusive. A developing apparatus includes a developer container for containing a monocomponent developer of negative charging property, a developer carrying member provided in an opening portion of the developer container, for carrying the developer, and a regulating member for forming a nip together with the developer carrying member and regulating a thickness of a developer layer on the developer carrying member. A surface of the regulating member forming the nip is comprised of a polyamide-containing rubber layer containing a polyamide having the Shore D hardness between 25 and 65 both inclusive.

    摘要翻译: 显影剂调节构件包括具有弹性的薄板和设置在薄板上的含聚酰胺的橡胶层。 含聚酰胺的橡胶层含有肖氏D硬度为25〜65的聚酰胺。 显影装置包括用于容纳负带电性的单组分显影剂的显影剂容器,设置在显影剂容器的开口部分中的用于承载显影剂的显影剂承载构件和用于与显影剂承载构件一起形成辊隙的调节构件 并调节显影剂承载构件上的显影剂层的厚度。 形成辊隙的调节构件的表面由含聚酰胺的含聚酰胺的橡胶层组成,其中包含肖氏D硬度在25和65之间。

    Fixing device and fixing heater for use in the same
    23.
    发明授权
    Fixing device and fixing heater for use in the same 失效
    固定装置和定影加热器用于其中

    公开(公告)号:US5083168A

    公开(公告)日:1992-01-21

    申请号:US430437

    申请日:1989-11-02

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2064 G03G15/2039

    摘要: A fixing device includes a heating element fixedly supported during a fixing procedure, a film, apparatus enabling the film to slide against the heating element, and a pressurizing roller for pressing a recording material on which a toner image is supported against the film. The heating element has a substrate, a heat generating layer provided on the substrate, and a heat-melting portion provided on the substrate. The heat-melting portion melts at a temperature higher than the fixing temperature and lower than the withstanding temperature of the substrate and thereby disconnects the heat generating layer from its power source.

    摘要翻译: 定影装置包括在固定过程期间固定地支撑的加热元件,能够使膜抵靠加热元件滑动的胶片,装置,以及用于将调色剂图像被支撑在胶片上的记录材料按压的加压辊。 加热元件具有基板,设置在基板上的发热层和设置在基板上的加热熔融部。 加热熔融部分在高于定影温度的温度下熔化并且低于基板的耐受温度,从而使发热层与其电源断开。

    Developing apparatus using magnetic particles and toner particles
    24.
    发明授权
    Developing apparatus using magnetic particles and toner particles 失效
    使用磁性颗粒和调色剂颗粒的显影装置

    公开(公告)号:US4887131A

    公开(公告)日:1989-12-12

    申请号:US168517

    申请日:1988-03-15

    IPC分类号: G03G15/09

    CPC分类号: G03G15/09

    摘要: A developing apparatus for developing an electrostatic latent image on an electrostatic latent image bearing member includes a container for containing a developer which contains toner particles and magnetic particles, a developer carrying member, opposed to the electrostatic latent image bearing member, for forming a developing position for supplying the toner particles to the latent image bearing member and for carrying the developer from the container to the developing position, magnetic field generating magnet disposed across the developer carrying member from the latent image bearing member for generating a magentic field, developer regulating member for regulating the developer which contains the toner particles and carrier particles and which is carried to the developing position, wherein the magnetic field generating magnet includes one magnetic pole adjacent an upstream side of the regulating member with respect to a movement direction of the developer carrying member, and wherein a magnetic flux density downstream of the one pole less steeply decreases the increase thereof at an upstream side.

    摘要翻译: 用于在静电潜像承载部件上显影静电潜像的显影装置包括容纳包含调色剂颗粒和磁性颗粒的显影剂的容器,与静电潜像承载部件相对的用于形成显影位置的显影剂承载部件 用于将调色剂颗粒供应到潜像承载构件并将显影剂从容器运送到显影位置,磁场产生磁体设置在显影剂承载构件的两侧,用于产生磁场,用于产生磁场,用于产生磁场的显影剂调节构件 调节含有调色剂颗粒和载体颗粒并且被运送到显影位置的显影剂,其中磁场产生磁体包括相对于显影剂承载构件的移动方向与调节构件的上游侧相邻的一个磁极, 并且 控制一极下游的磁通密度不太急剧地减小其在上游侧的增加。

    Developing apparatus using magnetic carrier under AC field
    25.
    发明授权
    Developing apparatus using magnetic carrier under AC field 失效
    在AC场下使用磁性载体的显影装置

    公开(公告)号:US4873551A

    公开(公告)日:1989-10-10

    申请号:US168434

    申请日:1988-03-15

    IPC分类号: G03G9/107 G03G13/09

    CPC分类号: G03G13/09 G03G9/1075

    摘要: The present invention relates to a developing apparatus using magnetic carrier particles and toner particles under the influence of an alternating current. One embodiment of the present invention includes a developer which is a mixture of toner particles and resin coated magnetic particles. An alternating electric field is formed between a latent image bearing member and developer carrying member to form a toner image corresponding to an electrostatic latent image. An electric resistivity curve of the magnetic particles on a coordinate graph, where the abscissa represents an electric field E (V/cm) applied to the magnetic particles and the ordinate represents an electric resistivity R (ohm-cm) of the magnetic particles, crosses a zone defined by lines, AB, BD, DC and CA, whereA is a point with coordinates (0.2.times.10.sup.3, 10.sup.11);B is a point with coordinates (2.times.10.sup.3, 3.times.10.sup.9);C is a point with coordinates (0.2.times.103, 10.sup.8); andD is a point with coordinates (2.times.10.sup.3, 2.times.10.sup.7).The resistivity R is measured by a sandwich type cell having electrodes with a clearance of 0.4 cm and an electrode area of 4 cm.sup.2, in which 1 kg wt. is applied to one of the electrodes, and a voltage is applied across the electrodes.

    摘要翻译: 本发明涉及一种在交流电影响下使用磁性载体颗粒和调色剂颗粒的显影装置。 本发明的一个实施方案包括显影剂,其是调色剂颗粒和涂覆有树脂的磁性颗粒的混合物。 在潜像承载部件和显影剂承载部件之间形成交替电场,以形成对应于静电潜像的调色剂图像。 磁性粒子在坐标图上的电阻率曲线,其中横坐标表示施加到磁性颗粒的电场E(V / cm)和纵坐标表示磁性颗粒的电阻率R(ohm-cm), 由线AB,BD,DC和CA定义的区域,其中A是具有坐标(0.2×103,1011)的点; B是坐标(2×103,3×10 9)的点; C是坐标(0.2x103,108)的点; D是坐标(2×103,2×10 7)的点。 电阻率R通过具有间隙为0.4cm,电极面积为4cm 2的电极的夹心型电池测量,其中1kg重量。 施加到一个电极,并且在电极之间施加电压。

    DEVELOPING APPARATUS
    26.
    发明申请
    DEVELOPING APPARATUS 有权
    开发设备

    公开(公告)号:US20080193171A1

    公开(公告)日:2008-08-14

    申请号:US12022273

    申请日:2008-01-30

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0896 G03G2215/085

    摘要: A developing apparatus includes a developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with a developer; a developer feeding member, contactable to the carrying member, for supplying the developer to the carrying member, the developer feeding member is rotatable in a direction of peripheral movement opposite a peripheral movement of the carrying member at a contact portion relative to the developer feeding member, wherein a direction the peripheral movement of the developer feeding member at the contact portion is substantially upward; and a regulating member for regulating an amount of the developer carried on the carrying member, the regulating member having a free end portion contacted to the carrying member; wherein the developer feeding member is supplied with a voltage which is different from a potential of the developer member toward a regular charging polarity of the developer, and wherein the carrying member is provided with a surface facing substantially downward, in a range from a downstreammost point of the developer member in the contact portion with respect to a rotational direction of the carrying member to a contact portion between the carrying member and the regulating member.

    摘要翻译: 显影装置包括用于承载显影剂以显影形成在图像承载部件上的静电图像的显影剂承载部件; 显影剂供给构件,其可接触到承载构件,用于将显影剂供应到承载构件,显影剂供给构件可以在相对于显影剂供给构件的接触部分处沿与运送构件的周边运动相反的周向运动方向旋转; 其中,所述显影剂供给构件在所述接触部分处的周边运动大致向上的方向; 以及调节构件,用于调节携带在所述承载构件上的显影剂的量,所述调节构件具有与所述承载构件接触的自由端部; 其中向显影剂供给部件提供与显影剂部件的电位不同于朝向显影剂的规则充电极性的电压,并且其中,所述承载部件设置有从下游位置的大致向下的表面, 所述显影剂构件在所述接触部分中相对于所述承载构件的旋转方向到所述承载构件和所述调节构件之间的接触部分。

    Image forming apparatus with reciprocating dispersing feature
    27.
    发明授权
    Image forming apparatus with reciprocating dispersing feature 失效
    具有往复分散特征的成像装置

    公开(公告)号:US07058338B2

    公开(公告)日:2006-06-06

    申请号:US11149541

    申请日:2005-06-10

    IPC分类号: G03G21/00

    CPC分类号: G03G21/0064

    摘要: An image forming apparatus includes a photosensitive drum, a charging roller, a transfer roller, and a toner charging brush, wherein the toner charging brush reciprocates in a longitudinal direction of the photosensitive drum. In the image forming apparatus, when a number of rotations per a unit time of the image bearing member is assumed to be “a” and a number of times of reciprocation per unit time of the toner charging brush is assumed to be “b” assuming that R=b/a, R is set to be in a range of 1/25≦R≦3. However, R=m/n (m and n are integers of 5 or less) is excluded. Consequently, generation of a periodic attachment pattern appearing on the photosensitive drum is eliminated.

    摘要翻译: 图像形成装置包括感光鼓,充电辊,转印辊和调色剂充电刷,其中调色剂充电刷在感光鼓的纵向方向上往复运动。 在图像形成装置中,当将图像承载部件的每单位时间的转数假设为“a”,并且假设调色剂充电刷的每单位时间的往复次数假定为“b” R = b / a,R设定在1/25 <= R <3的范围内。 然而,排除R = m / n(m和n为5以下的整数)。 因此,消除了出现在感光鼓上的周期性附着图案的产生。

    Image forming apparatus and method of controlling same
    28.
    发明授权
    Image forming apparatus and method of controlling same 失效
    图像形成装置及其控制方法

    公开(公告)号:US06999689B2

    公开(公告)日:2006-02-14

    申请号:US10898961

    申请日:2004-07-27

    IPC分类号: G03G15/00 G03G15/08

    摘要: Provided are an image forming apparatus and method of controlling same in which when toner replenishment from a toner accommodating unit has been performed satisfactorily, a no-toner indication can be cancelled without taking more time than necessary, and in which the status of the toner accommodating unit can be reported to the user earlier even if a toner accommodating unit that has no toner or that has malfunctioned has been installed. Whether a toner accommodating unit (5) has toner is determined based upon a detection signal from a toner density sensor (46) that detects the toner density of a developer in a developing unit (4). If it is determined that there is no toner in the toner accommodating unit (5) and the toner accommodating unit (5) is replaced, this is detected and a toner density restoration sequence for restoring the density of toner in the developing unit (4) is executed. The toner density restoration sequence is controlled based upon a predetermined target value relating to toner density restoration and a toner density restoration decision value (V1) that is different from said predetermined target value.

    摘要翻译: 提供了一种图像形成装置和方法,其中当从调色剂容纳单元进行调色剂补充已经令人满意地执行时,可以消除无调色剂指示,而不需要花费更多的时间,并且其中调色剂容纳的状态 即使已经安装了没有调色剂或已经发生故障的调色剂容纳单元,也可以提前向用户报告单元。 基于来自检测显影单元(4)中的显影剂的调色剂浓度的调色剂浓度传感器(46)的检测信号来确定调色剂容纳单元(5)是否具有调色剂。 如果确定调色剂容纳单元(5)中没有调色剂和调色剂容纳单元(5)被更换,则检测该调色剂容纳单元(5)中的调色剂浓度恢复顺序,以恢复显影单元(4)中调色剂的浓度, 被执行。 基于与调色剂浓度恢复相关的预定目标值和与所述预定目标值不同的调色剂浓度恢复判定值(V 1)来控制调色剂浓度恢复顺序。

    Developing apparatus, process cartridge, and electrophotographic image forming apparatus including an elastic member preventing a gap between a developing agent carrier and a layer thickness limiter from changing, and an electrophotographic image forming apparatus detachably mounting such process cartridge
    29.
    发明授权
    Developing apparatus, process cartridge, and electrophotographic image forming apparatus including an elastic member preventing a gap between a developing agent carrier and a layer thickness limiter from changing, and an electrophotographic image forming apparatus detachably mounting such process cartridge 有权
    显影装置,处理盒和电子照相图像形成装置,包括防止显影剂载体和层厚度限制器之间的间隙改变的弹性构件,以及可拆卸地安装这种处理盒

    公开(公告)号:US06978099B2

    公开(公告)日:2005-12-20

    申请号:US10654909

    申请日:2003-09-05

    IPC分类号: G03G15/08 G03G15/09

    CPC分类号: G03G15/0942

    摘要: The present invention relates to a developing apparatus for developing an electrostatic latent image formed on an electrophotographic photosensitive drum using a developing agent, including a developing agent carrier for supplying the developing agent to the photosensitive drum to develop the electrostatic latent image formed on the photosensitive drum, a layer thickness limiting member for limiting the layer thickness of the developing agent carried on a surface of the developing agent carrier, the layer thickness limiting member being disposed with a gap to the developing agent carrier, a sealing member for restricting the developing agent from leaking out of an end in a longitudinal direction of the developing agent carrier, and an elastic member arranged in contact with the developing agent carrier to prevent the gap between the developing agent carrier and the layer thickness limiting member from changing upon bending of the developing agent carrier. The elastic member is in contact with the developing agent carrier at an outer position with respect to a position at which the sealing member is disposed.

    摘要翻译: 本发明涉及一种用于使用显影剂在静电复印感光鼓上形成的静电潜像显影的显影装置,该显影剂包括用于将显影剂供应到感光鼓的显影剂载体,以显影形成在感光鼓上的静电潜像 ,用于限制承载在显影剂载体的表面上的显影剂的层厚度的层厚限制构件,与显影剂载体间隔设置的层厚限制构件,用于限制显影剂的显影剂的密封构件 在显影剂载体的纵向方向上从一端开始泄漏;以及弹性构件,其布置成与显影剂载体接触,以防止显影剂载体和层厚度限制构件之间的间隙在显影剂弯曲时发生变化 载体 弹性构件在相对于设置密封构件的位置的外部位置与显影剂载体接触。

    Image forming apparatus
    30.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US20050271416A1

    公开(公告)日:2005-12-08

    申请号:US11199121

    申请日:2005-08-09

    IPC分类号: G03G15/08 G03G15/02 G03G21/00

    CPC分类号: G03G15/0216 G03G2215/021

    摘要: An image forming apparatus includes a photosensitive drum, a charge roller for charging the photosensitive drum, a developing device for developing an electrostatic latent image formed on the charged photosensitive drum with a developer, a first auxiliary charging brush which is located upstream from the charge roller in a movement direction of a surface of the photosensitive drum and applies a voltage of a polarity opposite to a normal polarity of a polarity opposite to a normal polarity of the developer, and a second auxiliary charging brush which is located downstream from the first auxiliary charging brush and upstream from the charge roller and applies a voltage of a polarity identical to the normal polarity of the developer. In the image forming apparatus, the first auxiliary charging brush is supplied with an AC voltage to be improved in recovery performance of a transfer residual developer, and contamination of charging means can be prevented.

    摘要翻译: 图像形成装置包括感光鼓,用于对感光鼓充电的充电辊,用显影剂使形成在带电感光鼓上的静电潜像显影的显影装置,位于充电辊上游的第一辅助充电刷 在感光鼓的表面的移动方向上施加极性与显影剂的正常极性相反的电压,以及位于第一辅助充电刷的下游和充电辊上游的第二辅助充电刷, 施加极性与显影剂的正常极性相同的电压。 在图像形成装置中,向第一辅助充电刷供给交流电压,以提高转印残留显影剂的回收性能,并且可以防止充电装置的污染。