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51. 发明申请

US20080069610A1 IMAGE FORMING APPARATUS 失效
标题翻译：图像形成装置
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。

52. 发明授权

US07107681B2 Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller 有权
公开(公告)号：US07107681B2
公开(公告)日：2006-09-19
申请号：US10624573
申请日：2003-07-23
申请人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
发明人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
IPC分类号： B21K1/02
CPC分类号： G03G15/2053 , H05B3/0095 , Y10T29/49472 , Y10T29/4956 , Y10T29/49565
摘要： A heating roller including a core of hollow cylinder form and wherein a thickness of the core is thicker in a center portion thereof than in both end portions thereof. Further, a heating device may have the heating roller, a fixing device may have the heating roller and the heating device, and an image forming apparatus may have the heating roller, the heating device and the fixing device.

53. 发明申请

US20070218386A1 PROCESS, TONER, PROCESS CARTRIDGE AND APPARATUS FOR DEVELOPING A TONER IMAGE 有权
标题翻译：过程，调色剂，过程盒和开发图像的设备
公开(公告)号：US20070218386A1
公开(公告)日：2007-09-20
申请号：US11669817
申请日：2007-01-31
申请人： Kazumi Suzuki , Hiromitsu Takagaki , Takashi Fujita , Atsushi Nakafuji , Hiromi Tamura , Shin Kayahara , Tsuyoshi Sugimoto , Takashi Seto , Katsuaki Miyawaki
发明人： Kazumi Suzuki , Hiromitsu Takagaki , Takashi Fujita , Atsushi Nakafuji , Hiromi Tamura , Shin Kayahara , Tsuyoshi Sugimoto , Takashi Seto , Katsuaki Miyawaki
IPC分类号： G03G9/08
CPC分类号： G03G9/08755 , G03G9/0806 , G03G9/0819 , G03G9/0821 , G03G9/0823 , G03G9/08782 , G03G9/08795 , G03G9/08797 , G03G9/09733 , G03G15/1665 , G03G2215/1695
摘要： A process includes developing toner images on a photoconductor, transferring to an intermediate transfer belt and a transferring-and-fixing roller. The toner images are transferred to and fixed to a paper simultaneously while the paper moves between the transferring-and-fixing roller and a pressure roller which is pressed against the transferring-and-fixing roller. After transfer process to the paper, residual toner particles remaining on the transferring-and-fixing roller are removed by a cleaning roller. In order to achieve a cleanability from the transferring-and-fixing roller and prevent the intermediate belt from becoming too high temperature, the elastic modulus of the toner particles measured when the toner particles are heated is greater than the elastic modulus of the toner particles when cooled in a temperature range where the glass transition temperature and 10° C. lower than the melting temperature of the toner particles.
摘要翻译：一种方法包括在光电导体上显影调色剂图像，转移到中间转印带和转印定影辊。当纸张在转印定影辊与被压靠在转印辊之间的压力辊之间移动时，调色剂图像被同时转印并固定在纸上。在转印到纸上之后，残留在转印辊上的调色剂颗粒被清洁辊除去。为了从转印定影辊获得可清洁性并防止中间带变得太高温度，当调色剂颗粒被加热时测量的调色剂颗粒的弹性模量大于调色剂颗粒的弹性模量在玻璃化转变温度和比调色剂颗粒的熔融温度低10℃的温度范围内冷却。

54. 发明申请

US20070212126A1 TRANSFER-FIXING UNIT AND IMAGE FORMING APPARATUS FOR ENHANCED IMAGE QUALITY 失效
标题翻译：传输固定单元和图像形成装置，用于增强图像质量
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。

55. 发明授权

US06636718B2 Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller 有权
公开(公告)号：US06636718B2
公开(公告)日：2003-10-21
申请号：US09874990
申请日：2001-06-07
申请人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
发明人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
IPC分类号： G03G1520
CPC分类号： G03G15/2053 , H05B3/0095 , Y10T29/49472 , Y10T29/4956 , Y10T29/49565
摘要： A heating roller including a core of hollow cylinder form and wherein a thickness of the core is thicker in a center portion thereof than in both end portions thereof. Further, a heating device may have the heating roller, a fixing device may have the heating roller and the heating device, and an image forming apparatus may have the heating roller, the heating device and the fixing device.

56. 发明授权

US06559421B1 Image forming apparatus and fixing device therefor 有权
标题翻译：图像形成装置及其固定装置
公开(公告)号：US06559421B1
公开(公告)日：2003-05-06
申请号：US09698035
申请日：2000-10-30
申请人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
发明人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
IPC分类号： G03G1520
CPC分类号： G03G15/2053
摘要： A fixing device for forming a toner image formed on a recording medium includes a heat roller accommodating a halogen heater. The halogen heater includes a glass tube formed of transparent quartz and provided with a wall thickness of 0.8 mm or below to increase transmission thereof. The increased transmission reduces a heat loss ascribable to the glass tube at the time of warm-up of the fixing device. The heat roller has such a thermal capacity that it can be warmed up in 10 seconds or loss. The glass tube is filled with inactive gas whose major component is krypton or xenon. A tungsten filament accommodated in the glass tube has its diameter reduced in order to implement a color temperature of 2,500 K or above. An image forming apparatus using the fixing device is also disclosed.
摘要翻译：用于形成在记录介质上形成的调色剂图像的定影装置包括容纳卤素加热器的加热辊。卤素加热器包括由透明石英形成并且具有0.8mm或更小的壁厚以增加其透射率的玻璃管。增加的传输减少了在定影装置预热时归因于玻璃管的热损失。加热辊具有这样的热容量，其可以在10秒钟内被加热或损失。玻璃管填充有主要成分是氪或氙的惰性气体。容纳在玻璃管中的钨丝的直径减小，以实现2500K或更高的色温。还公开了一种使用该定影装置的图像形成装置。

57. 发明授权

US07711301B2 Image transfer device for image forming apparatus 有权
标题翻译：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。

58. 发明授权

US07613419B2 Image forming apparatus and image forming method characterized by a particular nip time 失效
标题翻译：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。

59. 发明授权

US06897409B2 Image forming apparatus and fixing device therefor 有权
标题翻译：图像形成装置及其固定装置
公开(公告)号：US06897409B2
公开(公告)日：2005-05-24
申请号：US10452289
申请日：2003-06-03
申请人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
发明人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
IPC分类号： G03G15/20
CPC分类号： G03G15/2053
摘要： A fixing device for forming a toner image formed on a recording medium includes a heat roller accommodating a halogen heater. The halogen heater includes a glass tube formed of transparent quartz and provided with a wall thickness of 0.8 mm or below to increase transmission thereof. The increased transmission reduces a heat loss ascribable to the glass tube at the time of warm-up of the fixing device. The heat roller has such a thermal capacity that it can be warmed up in 10 seconds or less. The glass tube is filled with inactive gas whose major component is krypton or xenon. A tungsten filament accommodated in the glass tube has its diameter reduced in order to implement a color temperature of 2,500 K or above. An image forming apparatus using the fixing device is also disclosed.
摘要翻译：用于形成在记录介质上形成的调色剂图像的定影装置包括容纳卤素加热器的加热辊。卤素加热器包括由透明石英形成并且具有0.8mm或更小的壁厚以增加其透射率的玻璃管。增加的传输减少了在定影装置预热时归因于玻璃管的热损失。加热辊具有这样的热容量，可以在10秒以内加热。玻璃管填充有主要成分是氪或氙的惰性气体。容纳在玻璃管中的钨丝的直径减小，以实现2500K或更高的色温。还公开了一种使用该定影装置的图像形成装置。

60. 发明授权

US06631253B2 Fixing device and image forming apparatus using the same 有权
公开(公告)号：US06631253B2
公开(公告)日：2003-10-07
申请号：US10021503
申请日：2001-12-19
申请人： Atsushi Nakafuji , Takashi Fujita , Hirokazu Ikenoue , Jun Yura
发明人： Atsushi Nakafuji , Takashi Fujita , Hirokazu Ikenoue , Jun Yura
IPC分类号： G03G1520
CPC分类号： G03G15/2064 , G03G15/2057 , G03G2215/2016 , G03G2215/2029 , G03G2215/2032 , G03G2215/2041
摘要： A fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation of the present invention includes a rotary body, a stationary heating member not forming the nip, a fixing belt passed over the rotary body and heating member, and a pressing member held in contact with the fixing belt. A resistance heating body is formed on the heating member with the intermediary of an electric insulation layer.

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