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1. 发明授权

US5995797A Image forming apparatus which conveys unfixed toner images to a fixing device in an undisturbed and stable manner so that images may be formed on both sides of a sheet 失效
标题翻译：图像形成装置，其以未受干扰且稳定的方式将未定影的调色剂图像传送到定影装置，使得可以在片材的两面上形成图像
公开(公告)号：US5995797A
公开(公告)日：1999-11-30
申请号：US81513
申请日：1998-05-20
申请人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
发明人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
IPC分类号： G03G15/00 , G03G15/20
CPC分类号： G03G15/657 , G03G15/2028 , G03G2215/00413 , G03G2215/00586 , G03G2215/2083
摘要： In an image forming apparatus provided with a first image carrying member; a belt-shaped second image carrying member onto which a toner image is transferred from the first image carrying member; a pair of rotatable fixing members forming a nip region for fixing the toner images transferred on the both sides of the sheet; a conveying device for guiding the sheet separated from an end of the belt-shaped second image carrying member to the pair of rotatable fixing members, when the sheet is nipped and conveyed through the nip region of the pair of rotatable fixing members, the belt-shaped second image carrying member and the pair of rotatable fixing members are arranged such that the sheet is conveyed so as to form a loop protruding from a line connecting the entrance of the nip region and the end of the belt-shaped second image carrying member.
摘要翻译：在具有第一图像承载部件的图像形成装置中，带状的第二图像承载构件，其上从第一图像承载构件转印调色剂图像; 一对可旋转的固定构件，形成用于固定转印在纸张两侧的调色剂图像的辊隙区域; 所述输送装置用于将所述片材从所述带状第二图像承载构件的一端分离到所述一对可旋转固定构件时，当所述片材被夹持并输送通过所述一对可旋转固定构件的所述夹持区域时，所述一对可旋转固定构件被布置成使得所述片材被输送以形成从连接所述夹持区域的入口和所述带状第二图像承载构件的端部的线突出的环。

2. 发明授权

US5970277A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5970277A
公开(公告)日：1999-10-19
申请号：US248081
申请日：1999-02-10
申请人： Kunio Shigeta , Yotaro Sato , Satoshi Haneda , Hisayoshi Nagase
发明人： Kunio Shigeta , Yotaro Sato , Satoshi Haneda , Hisayoshi Nagase
IPC分类号： G03G21/00 , G03G15/00 , G03G15/14 , G03G15/23
CPC分类号： G03G15/6535 , G03G15/231 , G03G2215/017 , G03G2215/1623
摘要： The present invention relates to an image forming apparatus which forms images on both surfaces of a sheet-shaped medium using the electrophotographic method. There is described a double-sided image forming apparatus, which includes a first and a second image bearing elements to bear toner images, a first and a second transfer units for transferring the toner images to the sheet-shaped medium from the first and the second image bearing elements, a fixing unit for fixing the toner images transferred to the sheet-shaped medium, a discharger to discharge electric charges residing on the sheet-shaped medium, a detector to detect thickness and/or stiffness data of the sheet-shaped medium, and a controller to control a first image forming mode which enables to form images on both surfaces of the sheet-shaped medium, and to control a second image forming mode which enables to form an image on only a single surface of the sheet-shaped medium.
摘要翻译：本发明涉及使用电子照相法在片状介质的两个表面上形成图像的图像形成装置。描述了一种双面图像形成装置，其包括用于承载调色剂图像的第一和第二图像承载元件，用于将调色剂图像从第一和第二图像转印到片状介质的第一和第二转印单元图像承载元件，用于固定转印到片状介质的调色剂图像的定影单元，放电器，以排出驻留在片状介质上的电荷;检测器，用于检测片状介质的厚度和/或刚度数据以及控制器，用于控制能够在片状介质的两个表面上形成图像的第一图像形成模式，并且控制能够仅在片状介质的单个表面上形成图像的第二图像形成模式中。

3. 发明授权

US06347200B1 Duplex image forming apparatus 失效
标题翻译：双面成像装置
公开(公告)号：US06347200B1
公开(公告)日：2002-02-12
申请号：US09698951
申请日：2000-10-27
申请人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda
发明人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda
IPC分类号： G03G1516
CPC分类号： G03G15/238 , G03G15/232
摘要： The present invention concerns a duplex image forming apparatus, which can form images on both sides of a transfer sheet by employing an intermediate transfer element. The duplex image forming apparatus includes an image bearing member; a toner image forming section to form a toner image on the image bearing member; an intermediate transfer element, shaped like a belt, to bear the toner image transferred from the image bearing member and to convey a transfer sheet; a transfer sheet charging device to apply a bias voltage onto the transfer sheet at the charging position, so that the transfer sheet adheres onto the intermediate transfer element; a first transfer device to transfer the toner image onto the transfer sheet or the intermediate transfer element; a second transfer device to transfer the toner image borne on the intermediate transfer element onto the transfer sheet; and a control section to control a transfer current or a transfer voltage applied to the first transfer device.
摘要翻译：本发明涉及一种双面图像形成装置，其可以通过采用中间转印元件在转印纸的两面上形成图像。双面成像设备包括图像承载部件; 调色剂图像形成部分，用于在图像承载部件上形成调色剂图像; 中间转印元件，形状类似于带，以承载从图像承载部件转印的调色剂图像并输送转印纸; 转印片材充电装置，用于在充电位置向转印片施加偏压，使得转印片粘附到中间转印元件上; 用于将调色剂图像转印到转印片或中间转印元件上的第一转印装置; 第二转印装置，将承载在中间转印元件上的调色剂图像转印到转印纸上; 以及控制部分，用于控制施加到第一转印装置的转印电流或转印电压。

4. 发明授权

US06205301B1 Two-sided image forming apparatus 有权
标题翻译：双面成像装置
公开(公告)号：US06205301B1
公开(公告)日：2001-03-20
申请号：US09468500
申请日：1999-12-21
申请人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda
发明人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda
IPC分类号： G03G1516
CPC分类号： G03G15/232 , G03G2215/017 , G03G2215/0497
摘要： A two-sided image forming apparatus includes: an image carrying member; a toner image forming device for forming a toner image on the image carrying member; a belt-shaped intermediate transfer body for conveying a transfer material, having a volume resistivity R (&OHgr;·cm) wherein the following expression is satisfied, 109≦R
摘要翻译：双面图像形成装置包括：图像承载部件; 调色剂图像形成装置，用于在图像承载部件上形成调色剂图像; 用于输送转印材料的带状中间转印体，其具有体积电阻率R（OMEGA.cm），其中满足以下表达式：109 <= R 1012; 用于将图像承载构件上的调色剂图像转印到转印材料的中间转印体或前表面上的主转印装置; 以及用于将中间转印体上的调色剂图像转印到转印材料的后表面上的二次转印装置。满足以下表达式：0.2≤I（1B）/ V <= 0.7和0.6×I（1B）<= I（2）<= 1.4×I（1B），其中I（1B）（muA）表示绝对值当图像承载部件上的调色剂图像通过一次转印装置转印到转印材料的正面时，一次转印电流I（2）（μA）表示当调色剂图像的二次转印电流的绝对值中间转印体通过二次转印装置转印到转印材料的背面，V（mm / sec）表示中间转印体的移动速度。

5. 发明授权

US6058287A Image forming apparatus having sheet conveyance device 失效
标题翻译：具有片材输送装置的图像形成装置
公开(公告)号：US6058287A
公开(公告)日：2000-05-02
申请号：US923804
申请日：1997-09-04
申请人： Satoshi Haneda , Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Shuta Hamada
发明人： Satoshi Haneda , Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Shuta Hamada
IPC分类号： G03G15/00
CPC分类号： G03G15/657 , G03G2215/00586
摘要： An image forming apparatus includes a first image carrier for carrying a toner image formed thereon; a second image carrier for carrying the toner image transferred from the first image carrier and for conveying a recording sheet; a first transfer device for transferring the toner image carried on the first image carrier onto the second image carrier or an obverse side of the recording sheet; a second transfer device for transferring the toner image carried on the second image carrier onto a reverse side of the recording sheet and a fixing device for fixing the toner image transferred on the recording sheet. The second image carrier is provided with a curved portion at an end on a side of the fixing device, at which the recording sheet conveyed by the second image carrier is bent toward the reverse side of the recording sheet so as to separate the recording sheet from the second image carrier. A conveyor is provided between the curved portion and the fixing device, having rotatable spurred wheels each equipped with a plurality of protrusions on a circumferential surface thereof for conveying the separated recording sheet to the fixing device, wherein the spurred wheels contact to guide the obverse or reverse side of the recording sheet so that a moving direction of the recording sheet is changed toward a side which is opposite to the side where the spurred wheels contact the recording sheet.
摘要翻译：图像形成装置包括用于承载形成在其上的调色剂图像的第一图像载体; 第二图像载体，用于承载从第一图像载体转印并用于输送记录片材的调色剂图像; 用于将承载在第一图像载体上的调色剂图像转印到第二图像载体上或记录片材的正面的第一转印装置; 用于将承载在第二图像载体上的调色剂图像转印到记录纸张的反面上的第二转印装置和用于固定转印在记录纸上的调色剂图像的定影装置。第二图像载体在定影装置的一侧的端部设置有弯曲部分，由第二图像载体传送的记录片材朝向记录片材的相反侧弯曲，从而将记录片材从第二个图像载体。在弯曲部分和定影装置之间设置有一个输送机，它具有可旋转的驱动轮，每个齿轮在其圆周表面上装有多个突起，用于将分离的记录纸传送到定影装置，其中，激励的轮接触以引导正面或使得记录纸的移动方向朝向与被驱动的轮与记录纸接触的一侧相反的一侧改变。

6. 发明授权

US5991563A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5991563A
公开(公告)日：1999-11-23
申请号：US123215
申请日：1998-07-27
申请人： Satoshi Haneda , Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase
发明人： Satoshi Haneda , Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase
IPC分类号： G03G15/23 , G03G15/20
CPC分类号： G03G15/231 , G03G15/2046 , G03G2215/2083
摘要： In an image forming apparatus provided with an image carrying member, a toner image forming device, an intermediate image carrying member, a first transfer member, and a second transfer member, toner images are formed on both sides of a sheet. The toner images on the both sides of the sheet is fixed by a fixing device having a heater and a pair of fixing rollers. A detecting device detects at least one of a temperature of the fixing members, a material of the sheet and a size of the sheet, and a controller changes an image forming interval in accordance with at least one of the temperature of the fixing members, the material of the sheet and the size of the sheet detected by the detecting device.
摘要翻译：在具有图像承载构件，调色剂图像形成装置，中间图像承载构件，第一转印构件和第二转印构件的图像形成装置中，在片材的两侧形成调色剂图像。片材两侧的调色剂图像由具有加热器和一对定影辊的定影装置固定。检测装置检测固定构件的温度，片材的材料和片材的尺寸中的至少一个，并且控制器根据固定构件的温度中的至少一个来改变图像形成间隔，片材的材料和由检测装置检测到的片材的尺寸。

7. 发明授权

US5978644A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5978644A
公开(公告)日：1999-11-02
申请号：US123210
申请日：1998-07-27
申请人： Yotaro Sato , Kunio Shigeta , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
发明人： Yotaro Sato , Kunio Shigeta , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
IPC分类号： G03G15/00 , G03G15/23 , G03G21/00
CPC分类号： G03G15/657 , G03G15/231
摘要： An image forming apparatus includes: a first image bearer for bearing a toner image formed by a toner image forming device; a second image bearer for bearing the toner image which is transferred from the first image bearer; a first transferring device for transferring the toner image borne on the first image bearer onto the second image bearer or a front side of a transfer material; a second transferring device for transferring the toner image borne on the second image bearer onto a back side of the transfer material; a fixing device for fixing toner images transferred on both sides of the transfer material which is conveyed on the second image bearer and separated therefrom; and a separating claw for separating the transfer material from the second image bearer. The separating claw is provided facing a curvature portion provided at an end portion of the second image bearer on a side of the fixing device, and provided on a side of the second image bearer with respect to a tangential plane of the curvature portion passing an entrance of a nip portion for nipping the transfer material of the fixing device.
摘要翻译：图像形成装置包括：第一图像载体，用于承载由调色剂图像形成装置形成的调色剂图像; 用于承载从第一图像载体传送的调色剂图像的第二图像载体; 第一转印装置，用于将承载在第一图像载体上的调色剂图像转印到第二图像载体上或转印材料的正面; 第二转印装置，用于将承载在第二图像载体上的调色剂图像转印到转印材料的背面上; 用于定影转印在转印材料两侧的调色剂图像的定影装置，该转印材料在第二图像载体上传送并分离; 以及用于从第二图像承载件分离转印材料的分离爪。分离爪被设置成面对设置在第二图像承载体的固定装置一侧的端部处的曲率部分，并且设置在第二图像承载件相对于通过入口的曲率部分的切平面的一侧用于夹持固定装置的转印材料的辊隙部分。

8. 发明授权

US06360063B1 Image forming apparatus wherein writing of an image is conducted before feeding of a transfer material is started 失效
标题翻译：图像形成装置，其中开始在转印材料的供给之前进行图像的写入
公开(公告)号：US06360063B1
公开(公告)日：2002-03-19
申请号：US09610294
申请日：2000-07-05
申请人： Satoshi Haneda , Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase
发明人： Satoshi Haneda , Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase
IPC分类号： G03G1516
CPC分类号： H04N1/00578 , G03G15/232 , G03G2215/1623 , H04N1/00572 , H04N1/0058 , H04N1/00602 , H04N1/00931 , H04N1/29
摘要： In an image forming apparatus, in which toner images formed on an image forming body are formed on double sides of a transfer material, a writing of an image on the image forming body by a writing device according to image data for an intermediate transfer body is conducted before a feeding of the transfer material is started.
摘要翻译：在图像形成装置中，形成在图像形成体上的调色剂图像形成在转印材料的双面上，通过根据中间转印体的图像数据的书写装置将图像写入图像形成体上，在转印材料的进料开始之前进行。

9. 发明授权

US6085064A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US6085064A
公开(公告)日：2000-07-04
申请号：US158472
申请日：1998-09-22
申请人： Hisayoshi Nagase , Kunio Shigeta , Satoshi Haneda , Yotaro Sato , Toshihide Miura
发明人： Hisayoshi Nagase , Kunio Shigeta , Satoshi Haneda , Yotaro Sato , Toshihide Miura
IPC分类号： G03G15/00 , G03G15/14
CPC分类号： G03G15/657 , G03G2215/00586
摘要： An image forming apparatus includes: a first image carrier for carrying a toner image formed by an toner image forming device; a second image carrier for carrying thereon the toner image transferred from the first image carrier, and for transferring a transfer sheet thereon; a first transfer device for transferring the toner image carried on the first image carrier onto the second image carrier or a front side of the transfer sheet; a second transfer device for transferring the toner image carried on the second image carrier onto a back side of the transfer sheet; a fixing device for fixing the toner image transferred on the transfer sheet, wherein the second image carrier has a curvature portion at an edge thereof facing the fixing device; and a conveyance section provided between the curvature portion and the fixing device, having a claw member provided adjacent to the curvature portion for lifting a leading edge of the transfer sheet conveyed along the curvature portion. The claw member is separated from the curvature portion, interlocking with retreat of the conveyance section.
摘要翻译：图像形成装置包括：第一图像载体，用于承载由调色剂图像形成装置形成的调色剂图像; 用于在其上承载从第一图像载体转印的调色剂图像并在其上转印转印纸的第二图像载体; 第一转印装置，用于将承载在第一图像载体上的调色剂图像转印到第二图像载体上或转印片材的前侧; 第二转印装置，用于将承载在第二图像载体上的调色剂图像转印到转印纸的背面上; 用于固定转印在转印纸上的调色剂图像的定影装置，其中第二图像载体在其面向定影装置的边缘处具有曲率部分; 以及设置在所述曲率部和所述定影装置之间的输送部，具有与所述曲率部相邻设置的用于提升沿着所述曲率部输送的转印纸的前端的爪部件。爪部件与曲率部分分离，与传送部分的后退互锁。

10. 发明授权

US6021301A Image forming apparatus which is equipped with an intermediate transfer body and which prevents toner from sticking to a transfer unit 失效
标题翻译：图像形成装置配备有中间转印体并防止调色剂粘附到转印单元上
公开(公告)号：US6021301A
公开(公告)日：2000-02-01
申请号：US154764
申请日：1998-09-17
申请人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
发明人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
IPC分类号： G03G21/00 , G03G15/00 , G03G15/01 , G03G15/14 , G03G15/16
CPC分类号： G03G15/1635 , G03G15/1605 , G03G2215/017
摘要： An image forming apparatus includes: an image forming body; an intermediate transfer body for carrying a toner image transferred from the image forming body and conveying a transfer material thereon; a first transfer device for transferring the toner image on the image forming body onto the intermediate transfer body or a front side of the transfer material; a second transfer device for transferring the toner image on the intermediate transfer body onto a back side of the transfer material; and a fixing device for fixing the toner image transferred on the transfer material. The second transfer device includes a corona discharger having a discharging electrode and a shielding member for shielding an electric field when the discharging electrode discharges, and the shielding member has a circulation hole through which air flows along an outer circumferential surface of the intermediate transfer body in a conveyance direction from upstream to downstream of the transfer material.
摘要翻译：图像形成装置包括：图像形成体; 中间转印体，用于承载从图像形成体转印的调色剂图像并在其上输送转印材料; 用于将图像形成体上的调色剂图像转印到转印材料的中间转印体或前侧上的第一转印装置; 用于将中间转印体上的调色剂图像转印到转印材料的背面上的第二转印装置; 以及用于固定转印在转印材料上的调色剂图像的定影装置。第二转印装置包括具有放电电极的电晕放电器和用于在放电电极放电时屏蔽电场的屏蔽部件，并且屏蔽部件具有循环孔，空气沿着中间转印体的外周面流过从转移材料的上游到下游的输送方向。

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