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31. 发明申请

US20060171749A1 Fixing method, a fixing apparatus, an image formation method, and an image formation apparatus 失效
公开(公告)号：US20060171749A1
公开(公告)日：2006-08-03
申请号：US11333435
申请日：2006-01-18
申请人： Kunihiko Tomita , Naoki Iwata
发明人： Kunihiko Tomita , Naoki Iwata
IPC分类号： G03G15/20
CPC分类号： G03G15/205 , G03G2215/20 , G03G2215/2032
摘要： An energy-saving fixing apparatus for use in image formation apparatuses such as a copying machine is disclosed. A recording medium is sandwiched by a pair of belts, having belt tension between 0.001 and 5.4N/mm, for a period between 50 and 1000 ms. The recording medium is pressurized at pressure between 0.007 and 2.7 Ns/mm by a nip constituted by a heating roller and a pressurizing roller. The recording medium is conveyed with its toner image carrying side being adhered to one of the belts without being cooled.

32. 发明授权

US07046949B2 Image fixing apparatus using pulsating power for heating 有权
标题翻译：图像定影装置使用脉动电加热
公开(公告)号：US07046949B2
公开(公告)日：2006-05-16
申请号：US10247631
申请日：2002-09-20
申请人： Kunihiko Tomita , Naoki Iwata
发明人： Kunihiko Tomita , Naoki Iwata
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053 , G03G2215/2016 , G03G2215/2032
摘要： An image fixing apparatus having a linear heating body with an endless belt entrained around thereon, using an electrical power supply to provide pulsating power to the linear heating body. Additionally, a pressure body interposes the subject to be fixed containing an image on the endless belt, and the image is heated by the linear heating body through the endless belt. The subject is thereafter cooled and removed from the endless belt. The image is formed by using a toner containing a binder which contains a resin as a main component. Either the softening point or the melting point of the toner is between 50° C. to 160° C., and the viscosity of the toner is between 10 to 1013 centi-poise at a temperature greater than either the softening point or the melting point of the toner.
摘要翻译：一种图像定影装置，其具有线状加热体，该线性加热体带有环带，该环形带夹在其上，使用电源向线状加热体提供脉动功率。此外，压力体将待固定的被摄体包含在环形带上的图像，并且图像被线状加热体通过环形带加热。然后将受试者冷却并从环形带中取出。通过使用含有以树脂为主要成分的粘合剂的调色剂形成图像。调色剂的软化点或熔点在50℃至160℃之间，并且调色剂的粘度在大于10℃至10℃的温度下在10至10℃之间。调色剂的软化点或熔点。

33. 发明授权

US06941099B2 Developing device having plurality of biased magnetic sleeves 失效
标题翻译：显影装置具有多个偏置的磁性套筒
公开(公告)号：US06941099B2
公开(公告)日：2005-09-06
申请号：US10289315
申请日：2002-11-07
申请人： Naoki Iwata
发明人： Naoki Iwata
IPC分类号： G03G15/06 , G03G15/09
CPC分类号： G03G15/0907 , G03G2215/0648
摘要： A developing device having a plurality of sleeves is provided for high-speed development and the prevention of an abnormal image, for example, thinning of a line image. An AC bias is effectively applied, so that the base contamination is suppressed to obtain a smooth image without obvious grains. Among the plural sleeves, a bias towards the photoreceptor side is applied to an upstream-side sleeve, and a bias in the reverse direction is applied to a downstream-side sleeve. Alternatively, an AC bias with a low frequency is applied to the upstream-side sleeve and an AC bias with a high frequency is applied to the downstream-side sleeve. In addition, an AC bias with a large amplitude is applied to the upstream-side sleeve, and an AC bias with a small amplitude is applied to the downstream-side sleeve.
摘要翻译：提供具有多个套筒的显影装置用于高速显影和防止异常图像，例如线形图像的变薄。有效地施加AC偏压，从而抑制基底污染以获得没有明显晶粒的平滑图像。在多个套筒中，朝向感光体侧的偏压被施加到上游侧套筒，并且向下游侧套筒施加相反方向的偏压。或者，将低频的AC偏压施加到上游侧套筒，并将高频的AC偏压施加到下游侧套筒。此外，向上游侧套筒施加具有大幅度的AC偏压，并且向下游侧套筒施加具有小振幅的AC偏压。

34. 发明授权

US5557392A Multicolor image forming apparatus with pulse voltage and DC voltage applied to a developing unit 失效
标题翻译：具有施加到显影单元的脉冲电压和DC电压的多色图像形成装置
公开(公告)号：US5557392A
公开(公告)日：1996-09-17
申请号：US169078
申请日：1993-12-20
申请人： Naoki Iwata
发明人： Naoki Iwata
IPC分类号： G03G15/01
CPC分类号： G03G15/0121
摘要： In an image forming apparatus of the type forming a multicolor toner image on an image carrier and then transferring it to a transfer medium at a time, a first developing unit develops a latent image with a developer of first color while a second developing unit develops a latent image with a developer of second color. The second developing unit has a developer carrier for depositing the developer of second color thereon, and a bias power source for applying to the developer carrier a bias voltage for development which changes periodically and has one period made up of a first and a second period of time. During the first period of time, the bias power source applies to the developer carrier a first voltage generating an electric field which causes the developer to fly toward the image area and non-image area of the image carrier in a gap between the image carrier and the developer carrier. During the second period of time, the power source applies a second voltage generating, in the gap, an electric field returning the developer having flied toward the non-image area during the first period of time to the developer carrier while preventing the developer of first color existing on the image carrier from leaving the image carrier. The first period of time is selected such that the developer of second color does not reach the non-image area and the developer of first color existing on the image carrier does not fly to the developer carrier.
摘要翻译：在图像载体上形成多色调色剂图像，然后一次将其转印到转印介质的图像形成装置中，第一显影单元用第一显影单元显影的显影剂显影潜象，具有第二种颜色的显影剂的潜像。第二显影单元具有用于将第二颜色的显影剂沉积在其上的显影剂载体，以及用于向显影剂载体施加用于显影变化的偏压，偏置电压周期性变化并具有由第一和第二周期构成的一个周期的偏置电源时间。在第一时间段期间，偏置电源施加到显影剂载体上，产生电场的第一电压使得显影剂在图像载体和图像载体之间的间隙中朝向图像区域和图像载体的非图像区域飞行开发商承运人。在第二时间段期间，电源施加第二电压，在间隙中产生使在第一时间段期间向非图像区域飞行的显影剂返回到显影剂载体的电场，同时防止显影剂的第一图像载体上存在的颜色离开图像载体。选择第一时间段使得第二颜色的显影剂不到达非图像区域，并且存在于图像载体上的第一颜色的显影剂不飞到显影剂载体。

35. 发明授权

US5541029A Multicolor image forming method preventing mixing of colors 失效
标题翻译：防止颜色混合的多色图像形成方法
公开(公告)号：US5541029A
公开(公告)日：1996-07-30
申请号：US302466
申请日：1994-09-12
申请人： Naoki Iwata , Tomotoshi Nakahara , Hisao Murayama , Ichiro Komuro
发明人： Naoki Iwata , Tomotoshi Nakahara , Hisao Murayama , Ichiro Komuro
IPC分类号： G03G9/097 , G03G13/01
CPC分类号： G03G9/09725 , G03G13/013
摘要： A multicolor image forming method of the kind sequentially developing a plurality of latent images formed on an image carrier by toners of respective colors and transferring the resulting toner images to a recording medium at the same time. Development in the second color and successive colors is implemented as noncontact type development using a thin layer of nonmagnetic toner. This toner layer satisfies a condition of dt/.epsilon.t
摘要翻译：一种多色图像形成方法，其通过各种颜色的调色剂顺序显影形成在图像载体上的多个潜像，并将所得到的调色剂图像同时转印到记录介质上。第二种颜色和连续颜色的发展被实现为使用非磁性调色剂的薄层的非接触型显影。该调色剂层满足dt /εt<590（μm）2的条件，其中dt和εt分别是该层的厚度和平均体积电感率。用于第二颜色和连续颜色显影的调色剂通过聚合产生，并且具有10μm或更小的平均体积粒径。第一种颜色的显影通过具有相对较大的粒度分布的调色剂来实现，该调色剂不包括具有尖锐的电荷量分布的较大颗粒，并且不产生低电荷的颗粒。用于第一种颜色显影的调色剂具有比用于第二种和连续颜色显影的调色剂更小的平均粒度。

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