公开(公告)号：US5429898A

公开(公告)日：1995-07-04

申请号：US149278

申请日：1993-11-09

申请人： Yutaka Sugizaki ,  Yasuo Yamamoto ,  Taichi Yamada ,  Masaki Nakamura ,  Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yasuhiro Oda

发明人： Yutaka Sugizaki ,  Yasuo Yamamoto ,  Taichi Yamada ,  Masaki Nakamura ,  Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yasuhiro Oda

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G15/00 ,  G03G15/01 ,  G03G15/20 ,  G03G9/08

CPC分类号： G03G9/08791 ,  G03G9/08755

摘要： A method for forming an image with a copying machine capable of both color copying and black-and-white copying is disclosed, in which a black toner contains at least a colorant and a resinous component having a weight average molecular weight (Mw) of from 25,000 to 80,000 and a number average molecular weight (Mn) of from 2,000 to 8,000, with a Mw/Mn ratio being not less than 10, and having an apparent melt viscosity of 1.times.10.sup.4 poise at a temperature between 115.degree. C. and 140.degree. C. as measured by a flow tester method, and the quantity of heat of fixing is varied between a B/W mode and a color mode.

摘要翻译： 公开了一种能够进行彩色复印和黑白复印的复印机形成图像的方法，其中黑色调色剂至少含有着色剂和重均分子量（Mw）为 25,000至80,000，数均分子量（Mn）为2,000至8,000，Mw / Mn比不小于10，并且在115℃和140℃之间的表观熔体粘度为1×104泊。 C.通过流量测量仪测量，固定热量在B / W模式和彩色模式之间变化。

公开(公告)号：US5546175A

公开(公告)日：1996-08-13

申请号：US528012

申请日：1995-09-14

申请人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yoshio Kanesawa ,  Toru Inoue

发明人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yoshio Kanesawa ,  Toru Inoue

IPC分类号： G03G15/20

CPC分类号： G03G15/2064

摘要： The present invention provides an image fixing device for fixing toner on a transfer member comprises a heat roller which is a hollow cylindrical member rotatably supported at both end portions and having heating means inside thereof, pressure means press-contacted to the heat roller for pressing the transfer member passing between the heat roller and the pressure means against to a peripheral surface of the heat roller, and the pressure means is a pressure roller disposed approximately parallel to the heat roller and supported rotatably, at least one of the heat roller and the pressure roller has a layer of elastic material on its peripheral surface, and a value A/B is set to be within a range from 0.7 to 0.8 wherein A represents a nip width at an approximate central portion of an area between the heat roller and the pressure roller where the transfer member passes through and B represents a nip width at end portions of the area.

摘要翻译： 本发明提供了一种用于将调色剂定影在转印部件上的图像定影装置，包括：加热辊，该加热辊是在两端部可旋转地支撑并且在其内部具有加热装置的中空圆柱形部件，压力装置与加热辊压接， 传递构件在加热辊和加压装置之间穿过加热辊的外周表面，并且压力装置是设置成大致平行于加热辊并且可旋转地支撑的加压辊，加热辊和压力中的至少一个 辊在其外周表面上具有一层弹性材料，并且值A / B设定在0.7至0.8的范围内，其中A表示加热辊与压力之间的区域的大致中心部分处的压区宽度 转印部件通过的辊，B表示该区域的端部处的辊隙宽度。

公开(公告)号：US5485259A

公开(公告)日：1996-01-16

申请号：US276329

申请日：1994-07-18

申请人： Yasuhiro Uehara ,  Yasuhiro Kusumoto

发明人： Yasuhiro Uehara ,  Yasuhiro Kusumoto

IPC分类号： G03G15/20 ,  H05B3/00

CPC分类号： G03G15/2025 ,  G03G15/206 ,  G03G2215/2093 ,  G03G2215/2096

摘要： A fusing device for fusing a toner image by passing a recording sheet carrying an unfused toner image by means of the torque of a heating roll through a nip portion between the rotating heating roll and a heat-resistant solid elastic member which is forced to contact the outer peripheral surface of the heating roll to form the nip portion. In the fusing device, the heat-resistant solid elastic member includes an elastic body penetrated with a liquid release agent, and a lease-agent penetration control film whose region which is used for covering the surface of the elastic body and corresponds to at least the nip portion is formed of a porous film.

摘要翻译： 一种定影装置，其通过使加热辊的扭矩通过旋转加热辊与被强制接触的旋转加热辊与耐热固体弹性部件之间的压合部分的夹持部分通过携带未熔融的调色剂图像的记录片材来定影调色剂图像， 加热辊的外周表面以形成夹持部。 在定影装置中，耐热性固体弹性构件包括穿透了脱液剂的弹性体和用于覆盖弹性体表面的区域，并且至少与 压区部分由多孔膜形成。

公开(公告)号：US5622805A

公开(公告)日：1997-04-22

申请号：US522541

申请日：1995-09-01

申请人： Yasuhiro Uehara ,  Masahiro Sato ,  Yuji Kobayashi ,  Yasuhiro Kusumoto ,  Tsutomu Sugimoto ,  Yoshio Shoji

发明人： Yasuhiro Uehara ,  Masahiro Sato ,  Yuji Kobayashi ,  Yasuhiro Kusumoto ,  Tsutomu Sugimoto ,  Yoshio Shoji

IPC分类号： G03G15/10 ,  G03G9/12 ,  G03G13/10 ,  G03G15/11 ,  G03G9/00 ,  B41J2/01 ,  B41J2/06

CPC分类号： B82Y15/00 ,  G03G15/101 ,  G03G15/102 ,  G03G9/12

摘要： The present invention provides a non-contact ink developing method for developing an electrostatic latent image formed on an electrostatic latent image formation member with ink, characterized by employing a conductive ink as the ink and a conductive developing roller disposed close to the electrostatic latent image formation member and whose surface has a water-repellent finish for producing very small ink droplets which are substantially spherical. The method comprising the steps of supplying the conductive ink to the surface of the conductive roller to produce a large number of very small ink droplets, and ejecting the ink droplets toward the electrostatic latent image in a developing area facing the electrostatic latent image formation member by an electrostatic induction force generated by charges of the electrostatic latent image and charges of opposite polarity induced in the ink droplets by the electrostatic latent image, and attaching the droplets to the electrostatic latent image.

摘要翻译： 本发明提供了一种非接触式油墨显影方法，用于利用油墨将形成在静电潜像形成部件上的静电潜像显影，其特征在于使用导电油墨作为油墨，以及靠近静电潜像形成设置的导电显影辊 并且其表面具有防水整理剂，用于产生基本上为球形的非常小的墨滴。 该方法包括以下步骤：将导电油墨供应到导电辊的表面以产生大量非常小的墨滴，并且通过在静电潜像形成部件的面向静电潜像形成部件的显影区域中将墨滴喷射到静电潜像 通过静电潜像的电荷产生的静电感应力和由静电潜像在墨滴中感应的相反极性的电荷，以及将液滴附着到静电潜像上。

公开(公告)号：US5345300A

公开(公告)日：1994-09-06

申请号：US28704

申请日：1993-02-09

申请人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Hiroshi Kato ,  Hiroyasu Kikukawa

发明人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Hiroshi Kato ,  Hiroyasu Kikukawa

IPC分类号： B29D29/00 ,  B29K21/00 ,  B29K105/04 ,  G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009

摘要： A fixing unit has a fixing roller and an endless belt. When a recording sheet bearing a toner image not yet fixed passes between the fixing roller and the endless belt, the fixing unit fixes the toner image onto the recording sheet in the nip area. The endless belt is a film-like belt consisting of a base film and a layer on the base film, the layer being made of a composite material containing porous material and elastomer. A fixing unit is thus provided which is free from the problems of image offset and lifetime shortening, and can realize the increase of fixing speed and/or size reduction.

摘要翻译： 定影单元具有定影辊和环形带。 当定影辊和环形带之间承载尚未固定的调色剂图像的记录纸通过定影单元将调色剂图像固定在辊隙区域中的记录片材上。 环形带是由基膜和基膜上的层组成的膜状带，该层由包含多孔材料和弹性体的复合材料制成。 因此提供了一种没有图像偏移和寿命缩短的问题的定影单元，并且可以实现定影速度和/或尺寸减小的增加。

公开(公告)号：US06175713B1

公开(公告)日：2001-01-16

申请号：US09299006

申请日：1999-04-26

申请人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yoshio Kanesawa

发明人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yoshio Kanesawa

IPC分类号： G03G1516

CPC分类号： H05B6/145 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0119 ,  G03G2215/1695

摘要： In an image recording apparatus in which a toner image on a toner image holding and conveying member is transferred onto a recording member and is fixed at the same time, the change of charging characteristics or the like by accumulation of heat in the apparatus is prevented, the toner image is certainly transferred and fixed onto the recording member with small consumed energy, and high speed print can be made. An intermediate transfer material on which a toner image is primarily transferred is disposed at a position facing a photosensitive drum, and a pressing roller for pressing the toner image against the recording member is disposed at the downstream side in the conveying direction of the transferred toner image. At the upstream side of the secondary transfer portion where the pressing roller is pressed, an electromagnetic induction heating unit for melting the toner image on the intermediate transfer material is disposed. The intermediate transfer material includes a conductive layer therein, and when the electromagnetic induction heating unit generates fluctuating magnetic field, the conductive layer is heated by eddy current. The toner is heated up to a temperature not less than the softening point temperature by this heat, and is instantly transferred by press contact with the recording member. The toner is cooled while it passes through the secondary transfer portion.

摘要翻译： 在其中调色剂图像保持和传送部件上的调色剂图像被转印到记录部件上并同时固定的图像记录装置中，防止了装置中的热累积引起的充电特性等的改变， 调色剂图像肯定地以小的消耗能量转印并固定到记录部件上，并且可以进行高速打印。 将调色剂图像主要转印到其上的中间转印材料设置在面向感光鼓的位置，并且用于将调色剂图像压靠在记录部件上的加压辊设置在转印的调色剂图像的输送方向的下游侧 。 在按压滚筒的二次转印部分的上游侧，设置用于熔化中间转印材料上的调色剂图像的电磁感应加热单元。 中间转印材料在其中包括导电层，并且当电磁感应加热单元产生波动的磁场时，导电层被涡流加热。 通过该加热将调色剂加热至不低于软化点温度的温度，并通过与记录部件的压接而立即转印。 调色剂在通过二次转印部分时被冷却。

公开(公告)号：US5621512A

公开(公告)日：1997-04-15

申请号：US573374

申请日：1995-12-15

申请人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yoshio Kanesawa

发明人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Yoshio Kanesawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/206

摘要： The present invention provides an image fixing device including a heat fusing roller with heating means inside and an elastic material layer on a peripheral surface of the heat fusing roller, the heat fusing roller being rotatably mounted, an endless belt movable in contact with the heat fusing roller, and a pressure applying member fixed and contacting the endless belt on the heat fusing roller and applying pressure to form a belt nip portion between the endless belt and the heat fusing roller.

摘要翻译： 本发明提供了一种图像定影装置，其包括具有加热装置的热定影辊和在热定影辊的外周表面上的弹性材料层，热定影辊可旋转地安装，可与热熔接器接触的环形带 辊和压力施加构件固定并接触热定影辊上的环形带并施加压力以在环形带和热定影辊之间形成带夹部。

公开(公告)号：US5619315A

公开(公告)日：1997-04-08

申请号：US365544

申请日：1994-12-28

申请人： Yasuhiro Kusumoto ,  Yasuhiro Uehara ,  Yoshio Kanesawa ,  Tohru Inoue ,  Hiroshi Kato ,  Hiroyasu Kikukawa

发明人： Yasuhiro Kusumoto ,  Yasuhiro Uehara ,  Yoshio Kanesawa ,  Tohru Inoue ,  Hiroshi Kato ,  Hiroyasu Kikukawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/206 ,  G03G2215/2093 ,  G03G2215/2096

摘要： A fixing apparatus for an image forming apparatus of the present invention includes: a rotatable heat roll; a heat-resistant elastic member fixedly disposed to form a nip section in contact with an outer circumferential surface of the heat roll, the heat-resistant elastic member being impregnated with a liquid release agent which is supplied to the nip section; and a porous fluororesin film formed by sintering a fluororesin powder for coating a surface of the heat-resistant elastic member coming in contact with the heat roll so that the release agent can be supplied by a predetermined amount while permeating through the film. The porous fluororesin film may include: a film formed by using metal fibers, glass fibers, or the like as a supporting member thereof, and a film formed by applying a gelled dimethyl silicone oil at least to a single surface of the film.

摘要翻译： 本发明的图像形成装置的定影装置包括：可旋转的热辊; 固定地设置成形成与所述加热辊的外周面接触的辊隙部的耐热弹性部件，所述耐热弹性部件浸渍有供给到所述辊隙部的液体脱模剂; 以及通过烧结氟树脂粉末形成的多孔氟树脂膜，所述氟树脂粉末用于涂覆与所述热辊接触的所述耐热弹性部件的表面，使得在渗透所述膜的同时可以以预定量提供所述脱模剂。 多孔氟树脂膜可以包括：通过使用金属纤维，玻璃纤维等作为其支撑构件形成的膜，以及通过至少对膜的单个表面施加胶凝的二甲基硅油而形成的膜。

公开(公告)号：US5359401A

公开(公告)日：1994-10-25

申请号：US139770

申请日：1993-10-22

申请人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Shohzoh Yamamoto

发明人： Yasuhiro Uehara ,  Yasuhiro Kusumoto ,  Shohzoh Yamamoto

IPC分类号： B65H5/02 ,  G03G15/20

CPC分类号： G03G15/2064

摘要： A fixing device includes a contact portion formed by making a part of an endless belt supported by a plurality of tension rollers contact a fixing roller having an elastic body applied thereon. The contact portion includes a contact point formed by making a pressure roller inside the endless belt bear against the fixing roller under pressure through the endless belt at an exit point of the contact portion. The fixing device also includes a braking device which brakes the transport of the endless belt at the contact point such that the endless belt at the point where the pressure roller bears against the fixing roller moves at a speed greater than the remaining portions of the endless belt.

摘要翻译： 定影装置包括通过使由多个张力辊支撑的环形带的一部分与其上施加有弹性体的定影辊接触而形成的接触部。 接触部分包括通过使环形带内的压力辊在压力下通过环形带在接触部分的出口处抵靠定影辊而形成的接触点。 固定装置还包括制动装置，其在接触点处制动环形带的传送，使得在压力辊承受定影辊的点处的环形带以大于环形带的剩余部分的速度移动 。

公开(公告)号：US5999788A

公开(公告)日：1999-12-07

申请号：US181614

申请日：1998-10-28

申请人： Yoshio Kanesawa ,  Hirotaka Matsuoka ,  Yasuhiro Kusumoto ,  Yasuhiro Uehara

发明人： Yoshio Kanesawa ,  Hirotaka Matsuoka ,  Yasuhiro Kusumoto ,  Yasuhiro Uehara

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/09 ,  G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009 ,  G03G2215/2012 ,  G03G2215/2035

摘要： A fixing device comprises a heat fixing roller in which a heat resistant elastic layer is formed on a cylindrical metal core and, further, a heat resistant resin layer is coated on the surface thereof, an endless belt, a pressure member disposed in the inside of the endless belt, wherein the endless belt is wound around the heat fixing roller for a predetermined angle to form a nip area between the endless belt and the heat fixing roller for allowing a recording sheet to pass therethrough, the pressure member is pressed by way of the endless belt to the heat fixing roller at the nip area thereby forming distortion in the heat resistant elastic layer of the heat fixing roller. An image forming apparatus using the fixing device can satisfy improved image quality, extended working life, energy saving and high speed operation altogether.

摘要翻译： 固定装置包括热定影辊，其中在圆筒形金属芯上形成耐热弹性层，并且在其表面上涂覆耐热树脂层，环形带，设置在其内侧的压力构件 环形带，其中环形带围绕热定影辊缠绕预定角度以在环形带和热定影辊之间形成夹持区域，以允许记录片材通过，压力构件通过 在辊隙区域处的热定影辊的环形带，从而在热定影辊的耐热弹性层中形成变形。 使用该定影装置的图像形成装置可以满足改善的图像质量，延长的使用寿命，节能和高速操作。