公开(公告)号：US06990309B2

公开(公告)日：2006-01-24

申请号：US10464537

申请日：2003-06-19

申请人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

发明人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G21/0005 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0174 ,  G03G2215/0177 ,  G03G2215/1661 ,  G03G2221/0005

摘要： An image forming apparatus includes an image carrying member, an intermediate transfer member, a charging member, a transfer mechanism, a discharging member, a direct current voltage source, and a direct current voltage controller. The intermediate transfer member is deposited at a position facing and in contact with the image carrying member rotatably carrying a toner image on a rotating surface, and receives the toner image therefrom during a first transfer operation. The charging member applies a charge to the intermediate transfer member to cause an electric field around a region where the image carrying member and the intermediate transfer member contact with each other, where the electric field generates a force for initiating the first transfer operation. The transfer mechanism performs a second transfer operation for transferring the toner image from the intermediate transfer member to a transfer sheet. The discharging member performs a discharging operation for discharging the charge remaining on the intermediate transfer member with contacting the intermediate transfer member after a completion of the second transfer operation. The direct current voltage source applies a direct current voltage to the discharging member to cause the discharging member to perform the discharging operation. The direct current voltage controller controls the direct current voltage in accordance with a volume resistivity of the intermediate transfer member.

公开(公告)号：US06654574B2

公开(公告)日：2003-11-25

申请号：US10279883

申请日：2002-10-25

申请人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

发明人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

IPC分类号： G03G1516

CPC分类号： G03G21/0005 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0174 ,  G03G2215/0177 ,  G03G2215/1661 ,  G03G2221/0005

摘要： An image forming apparatus includes an image carrying member, an intermediate transfer member, a charger, a transfer mechanism, a discharger, a direct current (d.c.) voltage source, and a d.c. voltage controller. The intermediate transfer member faces and contacts the image carrying member carrying a toner image, and receives the toner image therefrom during a first transfer. The charger charges the intermediate transfer member to cause an electric field around where the image carrying member and the intermediate transfer member contact each other, the electric field initiating the first transfer. The transfer mechanism transfers the toner image from the intermediate transfer member to a transfer sheet. The discharger discharges charge remaining on the intermediate transfer member. The d.c. voltage source applies a d.c. voltage to the discharger to cause the discharging. The d.c. voltage controller controls the d.c. voltage in accordance with a volume resistivity of the intermediate transfer member.

摘要翻译： 图像形成装置包括图像承载构件，中间转印构件，充电器，转印机构，放电器，直流（直流）电压源和直流电。 电压控制器 中间转印构件面向并接触承载调色剂图像的图像承载构件，并且在第一次转印期间从其接收调色剂图像。 充电器对中间转印部件充电，在图像承载部件和中间转印部件相互接触的地方引起电场，电场开始第一次转印。 转印机构将调色剂图像从中间转印部件转印到转印纸上。 放电器对剩余在中间转印部件上的电荷进行放电。 直径 电压源应用直流 电压到放电器引起放电。 直径 电压控制器控制直流 电压根据中间转印部件的体积电阻率。

公开(公告)号：US06701118B2

公开(公告)日：2004-03-02

申请号：US10279890

申请日：2002-10-25

申请人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

发明人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

IPC分类号： G03G1516

CPC分类号： G03G21/0005 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0174 ,  G03G2215/0177 ,  G03G2215/1661 ,  G03G2221/0005

摘要： An image forming apparatus includes an image carrying member, an intermediate transfer member, a charging member, a transfer mechanism, a discharging member, a direct current voltage source, and a direct current voltage controller. The intermediate transfer member is deposited at a position facing and in contact with the image carrying member rotatably carrying a toner image on a rotating surface, and receives the toner image therefrom during a first transfer operation. The charging member applies a charge to the intermediate transfer member to cause an electric field around a region where the image carrying member and the intermediate transfer member contact with each other, where the electric field generates a force for initiating the first transfer operation. The transfer mechanism performs a second transfer operation for transferring the toner image from the intermediate transfer member to a transfer sheet. The discharging member performs a discharging operation for discharging the charge remaining on the intermediate transfer member with contacting the intermediate transfer member after a completion of the second transfer operation. The direct current voltage source applies a direct current voltage to the discharging member to cause the discharging member to perform the discharging operation. The direct current voltage controller controls the direct current voltage in accordance with a volume resistivity of the intermediate transfer member.

摘要翻译： 图像形成装置包括图像承载构件，中间转印构件，充电构件，转印机构，放电构件，直流电压源和直流电压控制器。 中间转印部件在与图像承载部件相对并接触的位置处沉积，所述图像承载部件可旋转地承载调色剂图像在旋转表面上，并且在第一转印操作期间从其接收调色剂图像。 充电部件向中间转印部件施加电荷，以在电场产生用于启动第一转印操作的力的情况下在图像承载部件和中间转印部件相互接触的区域周围引起电场。 转印机构执行用于将调色剂图像从中间转印部件转印到转印纸上的第二转印操作。 排出构件在第二转印操作完成之后，通过接触中间转印构件进行排出残留在中间转印部件上的电荷的放电操作。 直流电压源对放电部件施加直流电压，使放电部件进行放电动作。 直流电压控制器根据中间转印部件的体积电阻率来控制直流电压。

公开(公告)号：US06505024B2

公开(公告)日：2003-01-07

申请号：US09828851

申请日：2001-04-10

申请人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

发明人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

IPC分类号： G03G1501

CPC分类号： G03G21/0005 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0174 ,  G03G2215/0177 ,  G03G2215/1661 ,  G03G2221/0005

摘要： An image forming apparatus includes an image carrying member, intermediate transfer member, charger, transfer mechanism, discharger, direct current voltage source, and direct current voltage controller. The intermediate transfer member contacts the image carrying member and receives a toner image therefrom during a first transfer operation. The charger charges the intermediate transfer member to generate an electric field where the image carrying member and the intermediate transfer member contact each other for initiating the first transfer operation. The transfer mechanism performs a second transfer operation to transfer the toner image from the intermediate transfer member to a transfer sheet. The discharger discharges a charge remaining on the intermediate transfer member after completing the second transfer operation by the direct current voltage source applying a direct current voltage to the discharger. The direct current voltage controller controls the direct current voltage based on a volume resistivity of the intermediate transfer member.

公开(公告)号：US06269228B1

公开(公告)日：2001-07-31

申请号：US09448760

申请日：1999-11-24

申请人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

发明人： Shin Kayahara ,  Hideo Yu ,  Mitsuru Takahashi ,  Takeshi Shintani

IPC分类号： G03G1500

CPC分类号： G03G21/0005 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0174 ,  G03G2215/0177 ,  G03G2215/1661 ,  G03G2221/0005

摘要： An image forming apparatus includes an image carrying member, an intermediate transfer member, a charging member, a transfer mechanism, a discharging member, a direct current voltage source, and a direct current voltage controller. The intermediate transfer member is deposited at a position facing and in contact with the image carrying member rotatably carrying a toner image on a rotating surface, and receives the toner image therefrom during a first transfer operation. The charging member applies a charge to the intermediate transfer member to cause an electric field around a region where the image carrying member and the intermediate transfer member contact with each other, where the electric field generates a force for initiating the first transfer operation. The transfer mechanism performs a second transfer operation for transferring the toner image from the intermediate transfer member to a transfer sheet. The discharging member performs a discharging operation for discharging the charge remaining on the intermediate transfer member with contacting the intermediate transfer member after a completion of the second transfer operation. The direct current voltage source applies a direct current voltage to the discharging member to cause the discharging member to perform the discharging operation. The direct current voltage controller controls the direct current voltage in accordance with a volume resistivity of the intermediate transfer member.

摘要翻译： 图像形成装置包括图像承载构件，中间转印构件，充电构件，转印机构，放电构件，直流电压源和直流电压控制器。 中间转印部件在与图像承载部件相对并接触的位置处沉积，所述图像承载部件可旋转地承载调色剂图像在旋转表面上，并且在第一转印操作期间从其接收调色剂图像。 充电部件向中间转印部件施加电荷，以在电场产生用于启动第一转印操作的力的情况下在图像承载部件和中间转印部件相互接触的区域周围引起电场。 转印机构执行用于将调色剂图像从中间转印部件转印到转印纸上的第二转印操作。 排出构件在第二转印操作完成之后，通过接触中间转印构件进行排出残留在中间转印部件上的电荷的放电操作。 直流电压源对放电部件施加直流电压，使放电部件进行放电动作。 直流电压控制器根据中间转印部件的体积电阻率来控制直流电压。

公开(公告)号：USRE38206E1

公开(公告)日：2003-07-29

申请号：US09471021

申请日：1999-12-23

申请人： Takashi Bisaiji ,  Hideo Yu ,  Yasunori Kawaishi ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Hideki Kamiyama

发明人： Takashi Bisaiji ,  Hideo Yu ,  Yasunori Kawaishi ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Hideki Kamiyama

IPC分类号： G03G1501

CPC分类号： G03G15/1605

摘要： A device incorporated in an image forming apparatus for transferring a toner image from a photoconductive element to an intermediate transfer belt and then from the intermediate transfer belt to a sheet or similar recording medium. An electrode member is implemented as a belt drive roller and located at the rear of a portion of the intermediate transfer belt which lies in a position for transferring the toner image from the belt to a sheet. The electrode member has a specific volume resistance of 107 &OHgr;cm to 1012 &OHgr;cm.

公开(公告)号：US5701566A

公开(公告)日：1997-12-23

申请号：US523208

申请日：1995-09-05

申请人： Takashi Bisaiji ,  Hideo Yu ,  Yasunori Kawaishi ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Hideki Kamiyama

发明人： Takashi Bisaiji ,  Hideo Yu ,  Yasunori Kawaishi ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Hideki Kamiyama

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1605

摘要： A device incorporated in an image forming apparatus for transferring a toner image from a photoconductive element to an intermediate transfer belt and then from the intermediate transfer belt to a sheet or similar recording medium. An electrode member is implemented as a belt drive roller and located at the rear of a portion of the intermediate transfer belt which lies in a position for transferring the toner image from the belt to a sheet. The electrode member has a specific volume resistance of 10.sup.7 .OMEGA.cm to 10.sup.12 .OMEGA.cm.

摘要翻译： 一种结合在图像形成装置中的装置，用于将调色剂图像从感光元件转印到中间转印带，然后从中间转印带转印到片状或类似的记录介质。 电极构件被实施为带驱动辊并且位于位于用于将调色剂图像从带传送到片材的位置的中间转印带的一部分的后部。 电极部件的比体积电阻为107欧姆 - 厘米至1012欧米AC。

公开(公告)号：US5666622A

公开(公告)日：1997-09-09

申请号：US459422

申请日：1995-06-02

申请人： Yuko Harasawa ,  Itaru Matsuda ,  Satoshi Takano ,  Hideo Yu ,  Yasunori Kawaishi ,  Hideki Kamiyama ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Takashi Bisaiji

发明人： Yuko Harasawa ,  Itaru Matsuda ,  Satoshi Takano ,  Hideo Yu ,  Yasunori Kawaishi ,  Hideki Kamiyama ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Takashi Bisaiji

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/6535 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/1685 ,  G03G2215/1623 ,  G03G2215/1661

摘要： The apparatus includes a photoconductive element and a transfer belt, with an electrode or bias applicator located downstream from a nip formed between the photoconductive element and the transfer belt. Upstream from the nip, a roller is provided which can also act as an electrode, or which can be held in an electrically floating state. A bias voltage can be provided to the roller upstream from the nip, with the voltage equal to or less than the voltage applied to the downstream electrode so as form a potential gradient. In addition, the applied voltages can be varied based upon the position of a sheet of paper, or in response to changes in humidity.

摘要翻译： 该装置包括光电导元件和转印带，其中电极或偏置施加器位于形成在感光元件和转印带之间的辊隙的下游。 在辊隙的上游设置有也可以用作电极的辊子，或者可以保持在电浮动状态。 可以向辊隙上游的辊子提供偏置电压，其中电压等于或小于施加到下游电极的电压，从而形成电位梯度。 此外，所施加的电压可以基于一张纸的位置或响应于湿度变化而变化。

公开(公告)号：US5461461A

公开(公告)日：1995-10-24

申请号：US44032

申请日：1993-04-08

申请人： Yuko Harasawa ,  Itaru Matsuda ,  Satoshi Takano ,  Hideo Yu ,  Yasunori Kawaishi ,  Hideki Kamiyama ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Takashi Bisaiji

发明人： Yuko Harasawa ,  Itaru Matsuda ,  Satoshi Takano ,  Hideo Yu ,  Yasunori Kawaishi ,  Hideki Kamiyama ,  Toshiaki Motohashi ,  Mitsuru Takahashi ,  Takashi Bisaiji

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G21/00

CPC分类号： G03G15/6535 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/1685 ,  G03G2215/1623 ,  G03G2215/1661

摘要： An image forming apparatus includes a photoconductive element and a transfer belt, with an electrode or bias applicator located downstream from a nip formed between the photoconductive element and the transfer belt. Upstream from the nip, a roller is provided which can also act as an electrode, or which can be held in an electrically floating state. A bias voltage can also be provided to the roller upstream from the nip, with the voltage equal to or less than the voltage applied to the downstream electrode. In addition, the applied voltages can be varied based upon the position of a sheet of paper, or in response to changes in humidity.

摘要翻译： 图像形成装置包括光电导元件和转印带，其中电极或偏置施加器位于形成在感光元件和转印带之间的辊隙的下游。 在辊隙的上游设置有也可以用作电极的辊子，或者可以保持在电浮动状态。 也可以在辊隙上游向辊子提供偏置电压，其电压等于或小于施加到下游电极的电压。 此外，所施加的电压可以基于一张纸的位置或响应于湿度变化而变化。

公开(公告)号：US5442428A

公开(公告)日：1995-08-15

申请号：US246499

申请日：1994-05-20

申请人： Mitsuru Takahashi ,  Yasunori Kawaishi ,  Hideo Yu ,  Toshiaki Motohashi ,  Katsuya Kawagoe ,  Hideki Kamiyama

发明人： Mitsuru Takahashi ,  Yasunori Kawaishi ,  Hideo Yu ,  Toshiaki Motohashi ,  Katsuya Kawagoe ,  Hideki Kamiyama

IPC分类号： B41J2/525 ,  B41J29/46 ,  G03G15/01 ,  G03G15/16 ,  G03G13/16

CPC分类号： G03G15/1605 ,  G03G15/0131

摘要： An image recording apparatus is disclosed which includes an intermediate transfer belt rotatable in a reciprocating motion. Before the belt is rotated back and forth for forming a composite toner image, it is rotated in the opposite direction to the image forming direction. This provides the belt with substantially the same deviation in both the forward movement and the reverse movement. Hence, the apparatus insures desirable images by preventing the individual toner images from being brought out of register due to the deviation of the belt.

摘要翻译： 公开了一种图像记录装置，其包括可以往复运动地旋转的中间转印带。 在皮带前后旋转以形成复合调色剂图像之前，其沿与图像形成方向相反的方向旋转。 这为皮带在向前运动和反向运动中提供了基本上相同的偏差。 因此，该装置通过防止各个调色剂图像由于带的偏离而脱离对准，从而确保期望的图像。