公开(公告)号：US20070212129A1

公开(公告)日：2007-09-13

申请号：US11683086

申请日：2007-03-07

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

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

IPC分类号： G03G15/16

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。

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。

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。

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。

公开(公告)号：US20080069610A1

公开(公告)日：2008-03-20

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。

公开(公告)号：US20070212126A1

公开(公告)日：2007-09-13

申请号：US11681739

申请日：2007-03-02

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

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

IPC分类号： G03G15/01

CPC分类号： G03G15/167 ,  G03G2215/0119 ,  G03G2215/1695

摘要： A transfer unit for use in an image forming apparatus includes a transfer belt, and a counter member. The transfer belt, having a given circumferential length, receives an un-fixed image, formed of an image developer, from an image carrier at a first nip, which is defined between the transfer belt and the image carrier. The counter member faces the transfer belt to form a second nip with the transfer belt. The un-fixed image is transferred from the transfer belt to a recording medium passing through the second nip. A slack portion is generated in the transfer belt, when a front edge of the recording medium passes through the second nip. The slack portion of the transfer belt being generated in a first portion of the transfer belt returning from the second nip to the first nip.

摘要翻译： 用于图像形成装置的转印单元包括转印带和计数器构件。 具有给定圆周长度的转印带在由转印带和图像载体之间限定的第一辊隙处从图像载体接收由图像显影剂形成的未固定图像。 相对构件面向转印带以与转印带形成第二辊隙。 未固定的图像从转印带传送到通过第二辊隙的记录介质。 当记录介质的前边缘通过第二压区时，在转印带中产生松弛部分。 转印带的松弛部分在转印带的第一部分中从第二辊隙返回到第一辊隙。

公开(公告)号：US07643767B2

公开(公告)日：2010-01-05

申请号：US11681739

申请日：2007-03-02

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

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

IPC分类号： G03G15/01

CPC分类号： G03G15/167 ,  G03G2215/0119 ,  G03G2215/1695

摘要： A transfer unit for use in an image forming apparatus includes a transfer belt, and a counter member. The transfer belt, having a given circumferential length, receives an un-fixed image, formed of an image developer, from an image carrier at a first nip, which is defined between the transfer belt and the image carrier. The counter member faces the transfer belt to form a second nip with the transfer belt. The un-fixed image is transferred from the transfer belt to a recording medium passing through the second nip. A slack portion is generated in the transfer belt, when a front edge of the recording medium passes through the second nip. The slack portion of the transfer belt being generated in a first portion of the transfer belt returning from the second nip to the first nip.

摘要翻译： 用于图像形成装置的转印单元包括转印带和计数器构件。 具有给定圆周长度的转印带在由转印带和图像载体之间限定的第一辊隙处从图像载体接收由图像显影剂形成的未固定图像。 相对构件面向转印带以与转印带形成第二辊隙。 未固定的图像从转印带传送到通过第二辊隙的记录介质。 当记录介质的前边缘通过第二压区时，在转印带中产生松弛部分。 转印带的松弛部分在转印带的第一部分中从第二辊隙返回到第一辊隙。

公开(公告)号：US08200135B2

公开(公告)日：2012-06-12

申请号：US12071070

申请日：2008-02-15

申请人： Takashi Fujita ,  Shin Kayahara ,  Hiromitsu Takagaki ,  Takashi Seto ,  Takeshi Takemoto ,  Hirohmi Tamura

发明人： Takashi Fujita ,  Shin Kayahara ,  Hiromitsu Takagaki ,  Takashi Seto ,  Takeshi Takemoto ,  Hirohmi Tamura

IPC分类号： G03G15/00

CPC分类号： G03G15/161 ,  G03G15/2042 ,  G03G2215/1671 ,  G03G2215/1695

摘要： A transfer-fixing device includes a transfer-fixing member, a pressing member, a heating device, and a temperature equalizer. The transfer-fixing member carries the toner image. The pressing member presses against the transfer-fixing member to form a nip portion to which the recording medium is conveyed. The heating device heats the transfer-fixing surface of the recording medium conveyed toward the nip portion. The temperature equalizer equalizes a temperature distribution of a surface of the transfer-fixing member in a width direction of the transfer-fixing member after the surface of the transfer-fixing member passes through the nip portion.

摘要翻译： 转印固定装置包括转印固定构件，按压构件，加热装置和温度均衡器。 转印固定构件承载调色剂图像。 按压构件压靠转印固定构件以形成传送记录介质的夹持部分。 加热装置加热向夹持部输送的记录介质的转印固定面。 温度均衡器在转印 - 固定部件的表面经过夹持部分之后，使转印 - 固定部件的表面在转印 - 固定部件的宽度方向上的温度分布相等。

公开(公告)号：US07912412B2

公开(公告)日：2011-03-22

申请号：US12073501

申请日：2008-03-06

申请人： Takashi Fujita ,  Shin Kayahara ,  Takeshi Takemoto ,  Hiromitsu Takagaki ,  Takashi Seto ,  Hirohmi Tamura

发明人： Takashi Fujita ,  Shin Kayahara ,  Takeshi Takemoto ,  Hiromitsu Takagaki ,  Takashi Seto ,  Hirohmi Tamura

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/2064 ,  G03G2215/0129 ,  G03G2215/1685 ,  G03G2215/2074

摘要： A transfer-fixing device transfers and fixes a toner image onto a transfer-fixing surface of a recording medium, and includes a transfer-fixing member, a pressing member, a heating member, and a temperature equalization member. The transfer-fixing member carries the toner image. The pressing member pressingly contacts the transfer-fixing member to form a nip between the pressing member and the transfer-fixing member through which the recording medium passes. The heating member heats the transfer-fixing surface of the recording medium conveyed toward the nip so that the recording medium reaches the nip before a temperature of a back surface opposite the transfer-fixing surface of the recording medium increases. The temperature equalization member equalizes temperature distribution on a surface of the transfer-fixing member in a width direction of the transfer-fixing member perpendicular to a conveyance direction of the recording medium, after the surface of the transfer-fixing member passes the nip.

摘要翻译： 转印固定装置将调色剂图像转印并固定到记录介质的转印固定表面上，并且包括转印固定构件，按压构件，加热构件和温度均衡构件。 转印固定构件承载调色剂图像。 按压构件按压接触转印固定构件，以在按压构件和记录介质通过的转印固定构件之间形成辊隙。 加热构件加热朝向辊隙传送的记录介质的转印固定表面，使得记录介质在与记录介质的转印固定表面相对的背面的温度增加之前到达辊隙。 所述温度均衡部件在所述转印固定部件的表面经过所述辊隙之后，使所述转印固定部件的表面上的转印固定部件的表面上的温度分布与所述记录介质的输送方向垂直的方向相等。

公开(公告)号：US07907881B2

公开(公告)日：2011-03-15

申请号：US12042143

申请日：2008-03-04

申请人： Shin Kayahara ,  Takashi Fujita ,  Takeshi Takemoto ,  Hiromitsu Takagaki ,  Takashi Seto ,  Hirohmi Tamura

发明人： Shin Kayahara ,  Takashi Fujita ,  Takeshi Takemoto ,  Hiromitsu Takagaki ,  Takashi Seto ,  Hirohmi Tamura

IPC分类号： G03G15/16 ,  G03G15/11 ,  G03G15/20

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G15/2064 ,  G03G2215/0129 ,  G03G2215/1695 ,  G03G2215/2074

摘要： The transfer-fixing device includes an image carrier, a pressing member, a heater, and an electrical field generator. The image carrier carries a toner image. The pressing member presses against the image carrier to form a transfer-fixing nip between the pressing member and the image carrier. The heater heats the toner image carried by the image carrier so that a temperature of the toner image is not higher than Tm +10 degrees centigrade when a toner softening point is Tm degrees centigrade. The electrical field generator forms a transfer electrical field at the transfer-fixing nip.

摘要翻译： 转印固定装置包括图像载体，按压部件，加热器和电场发生器。 图像载体携带调色剂图像。 按压构件压靠图像载体，以在按压构件和图像载体之间形成转印定影辊隙。 当调色剂软化点为Tm摄氏度时，加热器加热由载体承载的调色剂图像，使得调色剂图像的温度不高于Tm + 10摄氏度。 电场发生器在转印定影辊隙处形成转印电场。