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    Image forming apparatus and image forming method characterized by a particular nip time
    1.
    发明授权
    Image forming apparatus and image forming method characterized by a particular nip time 失效
    特征在于具有特定的夹持时间的图像形成装置和图像形成方法

    公开(公告)号：US07613419B2

    公开(公告)日：2009-11-03

    申请号：US11511380

    申请日：2006-08-29

    申请人： Kazumi Suzuki ,  Takashi Fujita ,  Hideki Kosugi ,  Ichiro Kadota ,  Atsushi Nakafuji ,  Hiromitsu Takagaki

    发明人： Kazumi Suzuki ,  Takashi Fujita ,  Hideki Kosugi ,  Ichiro Kadota ,  Atsushi Nakafuji ,  Hiromitsu Takagaki

    IPC分类号： G03G15/16

    CPC分类号： G03G15/2064 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/16 ,  G03G2215/0602 ,  G03G2215/1685

    摘要： An image forming apparatus equipped with an image bearing member, a latent electrostatic image forming unit which forms a latent electrostatic image on the image bearing member, a developing unit which develops the latent electrostatic image by using a toner to form a toner image, a transfer fixing member which is roll shaped or belt shaped and bears the toner image , a heating unit which heats the toner image on the transfer fixing member; and a pressurizing member which is roll shaped and forms a transfer fixing nip with the transfer fixing member. The toner image on the transfer fixing member is transferred and fixed simultaneously to a recording medium which passes through the transfer fixing nip to record an image on the recording medium. At this time, the nip time, the time it takes for the recording medium to pass through the transfer fixing nip is set at 30 ms or less, the toner contains at least a binder, the binder has a main peak in an area of 5,000 to 15,000 molecular weight in a molecular weight distribution measured by GPC, the component of 30,000 or more molecular weight is 0.05% or less and a value of weight-average molecular weight (Mw) / number average molecular weight (Mn), Mw/Mn is 2 to 6.

    摘要翻译： 具有图像承载部件的图像形成装置，在图像承载部件上形成静电潜像的静电潜像形成部，通过使用调色剂显影静电潜像以形成调色剂图像的显影单元，转印 固定构件，其为辊状或带状并承载调色剂图像;加热单元，其加热转印固定构件上的调色剂图像; 以及加压构件，其是辊状的并与转印固定构件形成转印定影辊隙。 传送固定​​部件上的调色剂图像被转印并同时固定到通过传送定影辊隙的记录介质上，以在记录介质上记录图像。 此时，记录介质通过转印定影辊隙所需的时间设定为30ms以下，调色剂至少含有粘合剂，粘合剂的主峰面积为5,000 通过GPC测定的分子量分布为15000分子量，30,000以上分子量的成分为0.05％以下，重均分子量（Mw）/数均分子量（Mn），Mw / Mn 是2到6。

    Image forming apparatus and image forming method
    2.
    发明申请
    Image forming apparatus and image forming method 失效
    图像形成装置及图像形成方法

    公开(公告)号：US20070071511A1

    公开(公告)日：2007-03-29

    申请号：US11511380

    申请日：2006-08-29

    申请人： Kazumi Suzuki ,  Takashi Fujita ,  Hideki Kosugi ,  Ichiro Kadota ,  Atsushi Nakafuji ,  Hiromitsu Takagaki

    发明人： Kazumi Suzuki ,  Takashi Fujita ,  Hideki Kosugi ,  Ichiro Kadota ,  Atsushi Nakafuji ,  Hiromitsu Takagaki

    IPC分类号： G03G15/16

    CPC分类号： G03G15/2064 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/16 ,  G03G2215/0602 ,  G03G2215/1685

    摘要： An image forming apparatus equipped with an image bearing member, a latent electrostatic image forming unit which forms a latent electrostatic image on the image bearing member, a developing unit which develops the latent electrostatic image by using a toner to form a toner image, a transfer fixing member 13 which is roll shaped or belt shaped and bears the toner image T, a heating unit 15 which heats the toner image on the transfer fixing member; and a pressurizing member 14 which is roll shaped and forms a transfer fixing nip N with the transfer fixing member. And the toner image T on the transfer fixing member is transferred and fixed simultaneously to a recording medium P which passes through the transfer fixing nip to record an image on the recording medium. At this time, the nip time, the time it takes for the recording medium to pass through the transfer fixing nip is set at 30 ms or less, the toner contains at least a binder, the binder has a main peak in an area of 5,000 to 15,000 molecular weight in a molecular weight distribution measured by GPC, the component of 30,000 or more molecular weight is 0.05% or less and a value of weight-average molecular weight (Mw)/number average molecular weight (Mn), Mw/Mn is 2 to 6.

    摘要翻译： 具有图像承载部件的图像形成装置，在图像承载部件上形成静电潜像的静电潜像形成部，通过使用调色剂显影静电潜像以形成调色剂图像的显影单元，转印 固定构件13，其为辊状或带状并承载调色剂图像T;加热单元15，其加热转印固定构件上的调色剂图像; 以及加压构件14，该加压构件14是辊状的，并且与转印固定构件形成转印定影辊隙N. 并且转印固定构件上的调色剂图像T被同时转印并固定到通过转印定影辊隙的记录介质P上，以在记录介质上记录图像。 此时，将记录介质通过转印定影辊隙所需的时间设定为30ms以下，调色剂至少含有粘合剂，粘合剂的主峰面积为5,000 通过GPC测定的分子量分布为15000分子量，30,000以上分子量的成分为0.05％以下，重均分子量（Mw）/数均分子量（Mn），Mw / Mn 是2到6。

    Image forming apparatus
    5.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US07711300B2

    公开(公告)日：2010-05-04

    申请号：US11857579

    申请日：2007-09-19

    申请人： Atsushi Nakafuji ,  Takashi Fujita ,  Shin Kayahara ,  Hiromitsu Takagaki ,  Takashi Seto ,  Katsuaki Miyawaki ,  Kazumi Suzuki ,  Hirohmi Tamura

    发明人： Atsushi Nakafuji ,  Takashi Fujita ,  Shin Kayahara ,  Hiromitsu Takagaki ,  Takashi Seto ,  Katsuaki Miyawaki ,  Kazumi Suzuki ,  Hirohmi Tamura

    IPC分类号： G03G15/20

    CPC分类号： G03G15/24 ,  G03G2215/1695

    摘要： An image forming apparatus includes an image carrier for bearing a visible image thereon, an endless transfer-fixing belt stretchedly disposed between a plurality of spanning members, a pressure member for pressing the transfer-fixing belt to the image carrier while contacting a backside of the transfer-fixing belt at the transfer nip, and a heater for heating the visible image. The visible image on the image carrier is transferred onto the front surface of the transfer-fixing belt at the transfer nip and is transported to the transfer-fixing nip while heated by the heater, where the visible image is transferred and fixed on a recording member. The transfer-fixing belt is stretchedly arranged such that the transfer-fixing belt travels in a direction substantially perpendicular to a pressure direction of the pressure member in the proximity of the transfer nip.

    摘要翻译： 图像形成装置包括用于在其上承载可见图像的图像载体，张紧地设置在多个跨越构件之间的环形转印定影带，用于将转印固定带按压到图像载体的压力构件，同时接触 在转印辊隙处的转印定影带，以及用于加热可见图像的加热器。 图像载体上的可见图像在转印辊隙处转印到转印固定带的前表面上，并且在可见图像被转印并固定在记录元件上的同时被加热器传送到转印定影辊隙 。 转印定影带被拉伸布置成使得转印定影带在与转印辊隙附近的压力构件的压力方向基本上垂直的方向上行进。

    Image transfer device for image forming apparatus
    6.
    发明授权
    Image transfer device for image forming apparatus 有权
    图像形成装置用图像转印装置

    公开(公告)号：US07711301B2

    公开(公告)日：2010-05-04

    申请号：US11683086

    申请日：2007-03-07

    申请人： Takeshi Takemoto ,  Takashi Seto ,  Katsuaki Miyawaki ,  Takashi Fujita ,  Hiromitsu Takagaki ,  Atsushi Nakafuji ,  Shin Kayahara ,  Hirohmi Tamura ,  Kazumi Suzuki

    发明人： Takeshi Takemoto ,  Takashi Seto ,  Katsuaki Miyawaki ,  Takashi Fujita ,  Hiromitsu Takagaki ,  Atsushi Nakafuji ,  Shin Kayahara ,  Hirohmi Tamura ,  Kazumi Suzuki

    IPC分类号： G03G15/20

    CPC分类号： G03G15/162 ,  G03G15/161

    摘要： An image transfer device provided in an image forming apparatus in which, employing an endless belt as an intermediate transfer member, image transfer is performed at nip positions of a primary transfer portion and secondary transfer portion. Generation of warp in the transferred image resulting from transmission of fluctuations in load and torque of the endless belt generated at the nip position of one transfer portion nip to the nip position of the other transfer portion is prevented. The endless belt is turned between rollers and the endless belt is individually driven at the primary transfer portion and secondary transfer portion by drive sources to generate deflection between the primary transfer portion and the secondary transfer portion.

    摘要翻译： 在图像形成装置中设置有图像转印装置，其中采用环形带作为中间转印部件，在一次转印部分和二次转印部分的夹持位置进行图像转印。 防止了在一个传送部分夹持部的夹持位置处产生的环形带的传递波动的传递和另一传送部的夹持位置处产生的转印图像中的翘曲的产生。 环形带在辊之间转动，环形带在一次转印部分和二次转印部分由驱动源单独驱动，以在一次转印部分和二次转印部分之间产生偏转。

    Image forming apparatus equipping improved transfer fixing apparatus
    9.
    发明授权
    Image forming apparatus equipping improved transfer fixing apparatus 失效
    图像形成装置配备改进的转印定影装置

    公开(公告)号：US07551882B2

    公开(公告)日：2009-06-23

    申请号：US11757150

    申请日：2007-06-01

    申请人： Takashi Seto ,  Takashi Fujita ,  Katsuaki Miyawaki ,  Shin Kayahara ,  Atsushi Nakafuji ,  Kazumi Suzuki ,  Hirohmi Tamura ,  Hiromitsu Takagaki

    发明人： Takashi Seto ,  Takashi Fujita ,  Katsuaki Miyawaki ,  Shin Kayahara ,  Atsushi Nakafuji ,  Kazumi Suzuki ,  Hirohmi Tamura ,  Hiromitsu Takagaki

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1605 ,  G03G15/2064 ,  G03G2215/0119 ,  G03G2215/1695

    摘要： An image forming apparatus includes an image bearing member, a latent electrostatic image forming unit, a developing unit, an intermediate transferring unit which has an intermediate transfer belt and a plurality of rollers supporting the intermediate transfer belt, and a transfer fixing unit. The transfer fixing unit has a transfer fixing belt, a plurality of rollers supporting the transfer fixing belt, a heating member, and a pressurizing member forming a transfer fixing nip with the transfer fixing belt. A first roller, which is one of the plurality of rollers supporting the intermediate transferring belt, is opposite to a second roller, which is one of the plurality of rollers supporting the fixing transfer belt. The first roller and the second roller form a transfer nip between the intermediate transferring belt and the fixing transfer belt. The diameter of the first roller is smaller than the diameter of the second roller.

    摘要翻译： 图像形成装置包括图像承载部件，静电潜像形成单元，显影单元，具有中间转印带的中间转印单元和支撑中间转印带的多个辊以及转印固定单元。 转印定影单元具有转印定影带，支撑转印定影带的多个辊，加热构件和与转印定影带形成转印定影辊隙的加压构件。 作为支撑中间转印带的多个辊之一的第一辊与支撑固定转印带的多个辊之一的第二辊相反。 第一辊和第二辊在中间转印带和固定转印带之间形成转印辊隙。 第一辊的直径小于第二辊的直径。

    IMAGE FORMING APPARATUS EQUIPPING IMPROVED TRANSFER FIXING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS EQUIPPING IMPROVED TRANSFER FIXING APPARATUS 失效
    图像形成装置改进的传送固定装置

    公开(公告)号：US20080008505A1

    公开(公告)日：2008-01-10

    申请号：US11757150

    申请日：2007-06-01

    申请人： Takashi SETO ,  Takashi Fujita ,  Katsuaki Miyawaki ,  Shin Kayahara ,  Atsushi Nakafuji ,  Kazumi Suzuki ,  Hirohmi Tamura ,  Hiromitsu Takagaki

    发明人： Takashi SETO ,  Takashi Fujita ,  Katsuaki Miyawaki ,  Shin Kayahara ,  Atsushi Nakafuji ,  Kazumi Suzuki ,  Hirohmi Tamura ,  Hiromitsu Takagaki

    IPC分类号： G03G15/16 ,  G03G15/20

    CPC分类号： G03G15/1605 ,  G03G15/2064 ,  G03G2215/0119 ,  G03G2215/1695

    摘要： An image forming apparatus includes an image bearing member, a latent electrostatic image forming unit, a developing unit, an intermediate transferring unit which has an intermediate transfer belt and a plurality of rollers supporting the intermediate transfer belt, and a transfer fixing unit. The transfer fixing unit has a transfer fixing belt, a plurality of rollers supporting the transfer fixing belt, a heating member, and a pressurizing member forming a transfer fixing nip with the transfer fixing belt. A first roller, which is one of the plurality of rollers supporting the intermediate transferring belt, is opposite to a second roller, which is one of the plurality of rollers supporting the fixing transfer belt. The first roller and the second roller form a transfer nip between the intermediate transferring belt and the fixing transfer belt. The diameter of the first roller is smaller than the diameter of the second roller.

    摘要翻译： 图像形成装置包括图像承载部件，静电潜像形成单元，显影单元，具有中间转印带的中间转印单元和支撑中间转印带的多个辊以及转印固定单元。 转印定影单元具有转印定影带，支撑转印定影带的多个辊，加热构件和与转印定影带形成转印定影辊隙的加压构件。 作为支撑中间转印带的多个辊之一的第一辊与支撑固定转印带的多个辊之一的第二辊相反。 第一辊和第二辊在中间转印带和固定转印带之间形成转印辊隙。 第一辊的直径小于第二辊的直径。