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1.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
申请人： Akihiko Takeuchi , Toshihiko Ochiai , Motoi Kato , Toshiaki Miyashiro , Akira Ito , Nobuaki Kabeya , Takao Kume , Takehiko Suzuki
发明人： Akihiko Takeuchi , Toshihiko Ochiai , Motoi Kato , Toshiaki Miyashiro , Akira Ito , Nobuaki Kabeya , Takao Kume , Takehiko Suzuki
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。
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公开(公告)号：US5543904A
公开(公告)日：1996-08-06
申请号：US429240
申请日：1995-04-25
申请人： Motoi Kato , Akihiko Takeuchi , Toshihiko Ochiai , Toshiaki Miyashiro , Nobuaki Kabeya , Takehiko Suzuki , Takao Kume
发明人： Motoi Kato , Akihiko Takeuchi , Toshihiko Ochiai , Toshiaki Miyashiro , Nobuaki Kabeya , Takehiko Suzuki , Takao Kume
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。
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公开(公告)号：US06385409B2
公开(公告)日：2002-05-07
申请号：US09793613
申请日：2001-02-27
IPC分类号： G03G1501
CPC分类号： G03G15/0131 , G03G15/162 , G03G2215/0119 , G03G2215/0177 , G03G2215/021
摘要： An image forming apparatus includes an image bearing member, image forming device for forming a toner image on the image bearing member, the image forming device including a charging member for electrically charging the image bearing member, an intermediary transfer member, voltage applying device for applying a voltage to send intermediary transfer member to electrically transfer the toner image on the image bearing member formed by the image forming device onto the intermediary transfer member, wherein the toner image on the intermediary transfer member is transferred onto a transfer material, and a controller for controlling the voltage applied to send intermediary transfer member by the voltage applying device in accordance with the voltage applied to the charging member when the voltage applied to the charging member is controlled to change a surface potential of the image bearing member.
摘要翻译： 图像形成装置包括图像承载部件，用于在图像承载部件上形成调色剂图像的图像形成装置，图像形成装置包括用于对图像承载部件充电的充电部件，中间转印部件，施加电压的施加装置 发送中间转印部件以将由图像形成装置形成的图像承载部件上的调色剂图像电转印到中间转印部件上的电压，其中中间转印部件上的调色剂图像被转印到转印材料上，以及控制器 当施加到充电部件的电压被控制以改变图像承载部件的表面电位时，根据施加到充电部件的电压来控制施加到电压施加装置发送中间转印部件的电压。
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公开(公告)号：US5999760A
公开(公告)日：1999-12-07
申请号：US32028
申请日：1998-02-27
CPC分类号： G03G15/1675 , G03G2215/00734 , G03G2215/0177
摘要： The present invention provides a control method for controlling of output of a constant voltage power source so that a current value detected by a current detect means becomes to a predetermined current value, by applying voltage from the constant voltage power source to a voltage applied member and by detecting current flowing the voltage applied member by the current detect means and by changing the voltage applied to the voltage applied member every certain voltage width, wherein the voltage width can be varied with a difference between the predetermined current value and the current value detected by the current detect means.
摘要翻译： 本发明提供一种控制方法，用于控制恒压电源的输出，使得由电流检测装置检测的电流值变为预定电流值，通过将电压从恒压电源施加到施加电压的部件，以及 通过检测由电流检测装置流过施加电压部件的电流，并且每隔一定电压宽度改变施加到施加电压部件的电压，其中电压宽度可以随着预定电流值与由 电流检测装置。
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公开(公告)号：US5539507A
公开(公告)日：1996-07-23
申请号：US167141
申请日：1993-12-16
CPC分类号： G03G15/1685 , G03G15/0131 , G03G2215/0174 , G03G2215/1619
摘要： The present invention provides an image forming apparatus with an image bearing member for bearing an image, and a transfer material bearing member rotatable for bearing a transfer material. The image on the image bearing member is transferred onto the transfer material born by the transfer material bearing member at a transfer position, and a voltage is applied to the transfer material bearing member during the transferring of the transfer material. When a distance between the transfer position and a separation position where the transfer material is separated from the transfer material bearing member along a peripheral surface of the transfer material bearing member in a rotational direction of the transfer material bearing member is L, a whole circumferential length of the transfer material bearing member is L1 and a maximum length of the transfer material usable in the image forming apparatus in the rotational direction of the transfer material bearing member is Hmax, a relation L.ltoreq.(L1-Hmax) is satisfied.
摘要翻译： 本发明提供一种图像形成装置，具有用于承载图像的图像承载部件和可转动地承载转印材料的转印材料轴承部件。 图像承载部件上的图像在转印位置被转印到由转印材料承载部件承载的转印材料上，并且在转印材料的转印期间将电压施加到转印材料承载部件。 当转印位置与转印材料沿着转印材料承载部件的周面沿转印材料承载部件的旋转方向与转印材料承载部件分离的分离位置之间的距离为L时，整个周长 转印材料承载部件的转印材料的最大长度为Lmax，转印材料承载部件的旋转方向上可用于转印材料的转印材料的最大长度为Hmax，满足关系式L <=（L1-Hmax）。
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公开(公告)号：US6151476A
公开(公告)日：2000-11-21
申请号：US300522
申请日：1999-04-28
CPC分类号： G03G15/0131 , G03G2215/0177
摘要： An image forming apparatus has an image bearing member, an intermediary member and a voltage applicator to electrostatically to transfer the toner image from the image bearing member onto the intermediary transfer member and then transfer the image onto a transfer material. The apparatus is operable selectively in a first mode in which toner images of different colors are sequentially and superposedly transferred from the image bearing member onto the intermediary transfer member by the voltage application, and in a second mode in which only a toner image of a first color of the different colors is transferred onto the intermediary transfer member from the image bearing member. An absolute value of the voltage applied to the intermediary transfer member by the voltage applicator is larger when the second mode is selected than when the first mode is selected, when the toner image of the first color is transferred from the image bearing member onto the intermediary transfer member.
摘要翻译： 图像形成装置具有图像承载部件，中间部件和电压施加器，以静电将调色剂图像从图像承载部件转印到中间转印部件上，然后将图像转印到转印材料上。 该设备可选择性地在第一模式中可操作，其中不同颜色的调色剂图像通过施加电压从图像承载部件顺序地并重叠地转印到中间转印部件上，并且在第二模式中，其中只有第一 不同颜色的颜色从图像承载部件转印到中间转印部件上。 当选择第二模式时，与选择第一模式相比，当第一种颜色的调色剂图像从图像承载部件转印到中间体上时，由施加电压施加到中间转印部件的电压的绝对值较大 转移成员。
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公开(公告)号：US5761571A
公开(公告)日：1998-06-02
申请号：US728850
申请日：1996-10-10
CPC分类号： G03G15/167 , G03G2215/1619
摘要： An image forming apparatus has an image bearing member, a transfer material bearing member for bearing a transfer material onto which an image can be transferred from the image bearing member, an attract member for electrostatically attracting the transfer material to the transfer material bearing member, and a constant voltage control for effecting constant voltage control of the attract member with predetermined voltage. The total impedance of an attract circuit including the attract member and the constant voltage control means is 10.sup.6 .OMEGA. to 10.sup.10 .OMEGA..
摘要翻译： 图像形成装置具有图像承载部件，用于承载转印材料的转印材料承载部件，能够从图像承载部件转印图像，用于将转印材料静电吸引到转印材料承载部件的吸引部件，以及 用于以预定电压对吸引构件进行恒定电压控制的恒定电压控制。 包括吸引构件和恒定电压控制装置的吸引电路的总阻抗为106欧姆至1010欧米加。
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公开(公告)号：US06226469B1
公开(公告)日：2001-05-01
申请号：US09128539
申请日：1998-08-04
IPC分类号： G03G1500
CPC分类号： G03G15/0131 , G03G15/162 , G03G2215/0119 , G03G2215/0177 , G03G2215/021
摘要： An image forming apparatus includes an image bearing member, an image forming device for sequentially forming toner images of different colors on the image bearing member, the image forming device including a charging member for electrically charging the image bearing member to a polarity which is the same as a regular charging polarity of the toner. The apparatus also includes an intermediary transfer member having a volume resistivity of 1010-1016&OHgr;·cm, an image transferring device for applying a voltage to the intermediary transfer member to transfer electrostatically, sequentially, and superimposedly the toner images of the different colors formed on the image bearing member by the image forming means onto the intermediary transfer member, wherein toner images on the intermediary transfer member are transferred onto a transfer material, and a control device for controlling a voltage applied to the charging member, the control device controlling the voltage applied to the intermediary transfer member by the image transferring device in accordance with the voltage applied to the charging member.
摘要翻译： 图像形成装置包括图像承载部件，用于在图像承载部件上顺序地形成不同颜色的调色剂图像的图像形成装置，该图像形成装置包括用于将图像承载部件充电至相同极性的充电部件 作为调色剂的常规充电极性。 该装置还包括具有体积电阻率为1010-1016OMEGA.cm的中间转印构件，用于向中间转印构件施加电压以静电，顺序地和叠加地形成在其上的不同颜色的调色剂图像的图像转印装置 图像承载部件通过图像形成装置到中间转印部件上，其中中间转印部件上的调色剂图像被转印到转印材料上，以及用于控制施加到充电部件的电压的控制装置，控制装置控制施加的电压 通过图像传送装置根据施加到充电部件的电压到中间转印部件。
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公开(公告)号：US5608505A
公开(公告)日：1997-03-04
申请号：US640000
申请日：1996-04-30
CPC分类号： G03G15/1685 , G03G15/0131
摘要： An image forming apparatus includes an electrophotographic photosensitive member; a charger for charging the photosensitive member to form an electrostatic latent image on the photosensitive member; an exposure device for exposing the photosensitive member to image light; a developing device for developing the latent image with toner; a transfer member contactable to the photosensitive member at a transfer position, the transfer member comprising an electrically conductive base, a high resistance surface layer, and a low resistance or intermediate resistance conductive layer between the conductive base and the surface layer; and transfer voltage applying device for applying a transfer voltage to the transfer member; wherein Ws>Wt>Wp>W1 is satisfied, where Ws is a width of a photosensitive layer measured in a direction perpendicular to a movement direction of the photosensitive member, W1 is an image exposure width of the exposure device, Wp is a width of a transfer material usable with the image forming apparatus, and Wt is an overlapping width between a charging width of the charger and the width of the conductive layer of the transfer member.
摘要翻译： 图像形成装置包括电子照相感光构件; 用于对感光构件充电以在感光构件上形成静电潜像的充电器; 曝光装置，用于将感光构件曝光成图像光; 用调色剂显影潜像的显影装置; 所述转印构件在转印位置处与所述感光构件接触，所述转印构件包括在所述导电基底和所述表面层之间的导电基底，高电阻表面层和低电阻或中间电阻导电层; 以及用于向转印部件施加转印电压的转印电压施加装置; 其中Ws> Wt> Wp> W1，其中Ws是在与感光构件的移动方向垂直的方向上测量的感光层的宽度，W1是曝光装置的图像曝光宽度，Wp是 可与图像形成装置一起使用的转印材料，并且Wt是充电器的充电宽度与转印部件的导电层的宽度之间的重叠宽度。
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10.发明授权Image forming apparatus with a changeable transfer bias for transferring a toner patch image 失效具有用于转印调色剂贴片图像的可变转印偏压的图像形成装置公开(公告)号：US07035562B1
公开(公告)日：2006-04-25
申请号：US09597210
申请日：2000-06-20
申请人： Takehiko Suzuki , Akihiko Takeuchi , Toshihiko Ochiai , Motoi Katoh , Toshiaki Miyashiro , Takao Kume
发明人： Takehiko Suzuki , Akihiko Takeuchi , Toshihiko Ochiai , Motoi Katoh , Toshiaki Miyashiro , Takao Kume
IPC分类号： G03G15/00
CPC分类号： G03G15/1675 , G03G15/5058 , G03G2215/00042
摘要： An image forming apparatus includes an image bearing member for carrying a toner image; an image forming unit for forming a toner image on the image bearing member; a transfer material carrying member, for carrying a transfer material, wherein the toner image is transferred onto a transfer material carried on the transfer material carrying member or onto the transfer material carrying member; a density detecting unit for detecting a density of the toner image transferred to the transfer material carrying member; wherein a transfer intensity is smaller when the toner image for density detection is transferred onto the transfer material carrying member than when the toner image is transferred onto the transfer material carried on the transfer material carrying member.
摘要翻译： 图像形成装置包括用于承载调色剂图像的图像承载部件; 图像形成单元，用于在图像承载部件上形成调色剂图像; 用于承载转印材料的转印材料承载构件，其中调色剂图像被转印到承载在转印材料承载构件上的转印材料上或转印材料承载构件上; 密度检测单元，用于检测转印到转印材料承载构件上的调色剂图像的浓度; 其中当用于密度检测的调色剂图像转印到转印材料承载构件上时，与将调色剂图像转印到承载在转印材料承载构件上的转印材料上相比，转印强度较小。
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