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21. 发明专利

JP2013152302A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2013152302A
公开(公告)日：2013-08-08
申请号：JP2012012438
申请日：2012-01-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： NAKATSUHARA SEIYA , YAMAURA MASAAKI , NAKAJIMA TAKAHARU , HARASHIMA YASUMITSU
IPC分类号： G03G21/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To prevent a back side of a recording sheet from being contaminated with toner, in forming an image on the whole surface of the recording sheet.SOLUTION: An image forming device includes: an intermediate transfer belt 25 on which toner images on a photoreceptor drum 15 are transferred in an overlapped manner; a secondary transfer roll 33 for transferring the toner images on the intermediate transfer belt 25 to a recording sheet 34; a cleaning blade 51 and a brush 52 for removing toner adhered on the secondary transfer roll 33; and a CPU 51 that controls image formation so as to set a first peripheral speed of the secondary transfer roll 33 when a first image formation mode is selected to form an image with margins formed in the recording sheet 34, and to set a second peripheral speed lower than the first speed when a second image formation mode is selected to form an image on the whole surface of the recording sheet 34.
摘要翻译：要解决的问题：为了防止记录纸的背面被调色剂污染，在记录纸的整个表面上形成图像。解决方案：图像形成装置包括：中间转印带25，调色剂图像在感光鼓15上以重叠的方式传送; 用于将中间转印带25上的调色剂图像转印到记录片材34上的二次转印辊33; 用于除去附着在二次转印辊33上的调色剂的清洁刮板51和刷52; 以及CPU51，当选择第一图像形成模式以形成具有在记录纸张34中形成的边缘的图像时，控制图像形成以设定二次转印辊33的第一圆周速度，并且设定第二圆周速度当选择第二图像形成模式以在记录片材34的整个表面上形成图像时低于第一速度。

22. 发明专利

JP2007286403A Electrifying roll and image forming apparatus 有权
标题翻译：电动滚筒和图像形成装置
公开(公告)号：JP2007286403A
公开(公告)日：2007-11-01
申请号：JP2006114372
申请日：2006-04-18
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NAGAMORI YOSHITAKA
IPC分类号： G03G15/02 , F16C13/00
CPC分类号： G03G15/0233
摘要： PROBLEM TO BE SOLVED: To grasp the life of an electrifying roll before the occurrence of the defective electrification of the electrifying roll.
SOLUTION: The electrifying roll 14 has a rubber layer 14B and an outermost surface layer 14C formed around a conductive core material 14A. A surface thin layer part 151 is provided at the axial end of the electrifying roll 14. On the lower layer of the surface thin layer part 151, a projection 150 projects from the rubber layer 14B. When the projection part 150 appears on the outermost surface with the wearing of the outermost surface layer 14C of the electrifying roll 14, the surface of the photoreceptor drum 12 is not electrified by the part with the projection part 150 of the electrifying roll, and after a toner patch is formed at a fixed cycle, the life of the electrifying roll 14 is detected by a detection part.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在通电辊的故障通电发生之前，要掌握充电辊的使用寿命。
解决方案：充电辊14具有橡胶层14B和形成在导电芯材14A周围的最外表面层14C。表面薄层部分151设置在带电辊14的轴向端部。在表面薄层部分151的下层，突起150从橡胶层14B突出。当凸起部分150出现在最外表面上时，带电辊14的最外表面层14C的磨损，感光鼓12的表面没有被带电辊的突起部分150的部分带电，并且之后以固定的周期形成调色剂贴片，通过检测部检测带电辊14的寿命。版权所有（C）2008，JPO＆INPIT

23. 发明专利

JP2006064729A Developing device and image forming apparatus using the same 审中-公开
标题翻译：使用它的开发装置和图像形成装置
公开(公告)号：JP2006064729A
公开(公告)日：2006-03-09
申请号：JP2004243592
申请日：2004-08-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OBA SHOTA , NODA AKIHIKO , OZAKI YOSHIFUMI , YAMAURA MASAAKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable of obtaining an image of satisfactory quality with a reduced fluctuation in toner density even during continuous formation of high-density images by preventing the two component developer flowing via a toner replenishing path into a developer container from hindering the toner replenishment from a toner container to permit the quick toner replenishment. SOLUTION: In the development device which has a developer carrier 32, the developer container 33, the toner container 35, a developer retreating section 34, a developer separating means, and a partition member 39, and in which the two component developer G introduced by the partition member 39 into the developer retreating section 34 according to the toner density of the developer container 33 flows into the developer container 33 while capturing the toner replenished from the toner container 35, the partition member 39 is formed with a bypass 45 for prolonging the stagnation time of the two component developer flowing on the surface 39s thereof. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题：为了提供一种显影装置，即使在连续形成高密度图像的同时，通过防止二色成分显影剂经由调色剂补充路径流动，也能够以减小的调色剂浓度的波动获得令人满意的质量的图像显影剂容器妨碍调色剂容器的调色剂补充，以允许快速调色剂补充。解决方案：在具有显影剂载体32，显影剂容器33，调色剂容器35，显影剂退回部分34，显影剂分离装置和分隔部件39的显影装置中，其中双组分显影剂根据显影剂容器33的调色剂浓度，由分隔构件39引入显影剂退回部分34中的G流入显影剂容器33中，同时捕获从调色剂容器35补充的调色剂，分隔构件39形成有旁路45 用于延长在其表面39s上流动的双组分显影剂的停滞时间。版权所有（C）2006，JPO＆NCIPI

24. 发明专利

JP2006047715A Developing device and image forming apparatus using the same 审中-公开
标题翻译：使用它的开发装置和图像形成装置
公开(公告)号：JP2006047715A
公开(公告)日：2006-02-16
申请号：JP2004228950
申请日：2004-08-05
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NODA AKIHIKO , OZAKI YOSHIFUMI , OBA SHOTA
IPC分类号： G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus by which the direct supply of a two-component developer in an insufficiently agitated state of a replenished toner and the developer to a developer carrier is prevented and uniform images reduced in image density unevenness, such as haze unevenness, within the formed images can be obtained even if the high density images are continuously formed, and an image forming apparatus using the same.
SOLUTION: The developing device is equipped with the developer carrier 32, a developer housing section 33, a toner housing section 35, a developer retreating section 34, a developer separating section 38, and an agitating and rotating member 36, wherein the developer separated to the developer retreating section 34 flows into the developer housing section 33 while capturing the toner from the toner housing section 35. The developing device is equipped with a regulation section 39e for regulating the flow of the two-component developer G passing the region on the toner housing section 35 side nearer the upper side in the gravity direction than the rotation shaft of the agitating and rotating member 36in extreme proximity to the developer carrier 32 from the toner housing section 35 toward the developer carrier 32 side.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，通过该图像形成装置防止补充调色剂和显影剂在显影剂载体上的不充分搅拌状态的双组分显影剂直接供应到显影剂载体，并且均匀的图像降低了图像密度即使连续形成高密度图像，也可以获得形成图像内的不均匀性，例如雾度不均匀的图像形成装置。解决方案：显影装置配备有显影剂载体32，显影剂容纳部分33，调色剂容纳部分35，显影剂退回部分34，显影剂分离部分38和搅拌和旋转部件36，其中分离到显影剂退回部分34的显影剂在从调色剂容纳部分35捕获调色剂的同时流入显影剂容纳部分33.显影装置配备有调节部分39e，调节部分39e用于调节通过该区域的双组分显影剂G的流动在调色剂容纳部分35侧，在重力方向上的上侧比搅拌和旋转部件36的旋转轴更靠近显影剂载体32从调色剂容纳部分35朝向显影剂载体32侧。版权所有（C）2006，JPO＆NCIPI

25. 发明专利

JP2005338237A Developing device 有权
标题翻译：开发设备
公开(公告)号：JP2005338237A
公开(公告)日：2005-12-08
申请号：JP2004154503
申请日：2004-05-25
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OZAKI YOSHIFUMI , NODA AKIHIKO , OBA SHOTA , YAMAURA MASAAKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device which is capable of obtaining images of high quality having less image fogging and unevenness of image density by suppressing the occurrence of a toner density difference in an axial direction even when being arranged at an angle to the axial direction, and to provide an image forming device using the same. SOLUTION: In the developing device, end parts in the axial direction of a developer storage part 33 and a toner storage part 35 are mutually shielded so as to prevent a two-component developer G from circulating between them, and the two-component developer G separated into a developer retreat part 34 is supplied to the developer storage part 33 through a toner supply part 37 which is provided in a partial area in the axial direction of the toner storage part 35 and connects to the developer storage part 33. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种显影装置，其能够通过抑制在轴向方向上的调色剂浓度差异的发生而获得具有较少图像雾化和图像浓度不均匀的高质量图像，即使当被布置在并且提供使用该图像形成装置的图像形成装置。解决方案：在显影装置中，显影剂存储部分33和调色剂存储部分35的轴向方向上的端部相互被屏蔽，以防止双组分显影剂G在它们之间循环，分离成显影剂退回部分34的部件显影剂G通过设置在调色剂存储部分35的轴向方向上的部分区域中并连接到显影剂储存部分33的调色剂供应部分37提供给显影剂储存部分33。版权所有（C）2006，JPO＆NCIPI

26. 发明专利

JP2005257998A Development device and image forming apparatus using it 有权
标题翻译：使用它的开发设备和图像形成设备
公开(公告)号：JP2005257998A
公开(公告)日：2005-09-22
申请号：JP2004068710
申请日：2004-03-11
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NODA AKIHIKO , OZAKI YOSHIFUMI , OBA SHOTA , UEMATSU RYOSUKE , WATANABE TAKEAKI , SOGA HIROO , HAGIWARA YOSHIHIRO , ISHIBASHI JUNICHI , IWAMURA TAKUYA
IPC分类号： G03G9/10 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a development device capable of sufficiently assuring the alternativeness of a two-component developer on a developer carrier and the two-component developer in a developer container and maintaining the stable image quality to prevent an image history from occurring. SOLUTION: The development device is equipped with the developer carrier 3, the developer container 4, a toner container 5, a developer retreating section 7, and a developer separating means 8. The developer container 4 is further equipped with a developer peeling and supplying means 13 formed freely rotatably opposite to the image carrier 3. The developer peeling and supplying means 13 forms a magnetic field in the spacing near the portion opposite to the developer carrier 3, once peels the two component developer 2 on the image carrier 3 near the opposing section and supplies the fresh two component developer in the developer container 4 to the developer carrier 3. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够充分确保显影剂载体上的双组分显影剂和显影剂容器中的双组分显影剂的交替性并保持稳定的图像质量以防止图像历史的显影装置从发生。解决方案：显影装置配有显影剂载体3，显影剂容器4，调色剂容器5，显影剂后退部分7和显影剂分离装置8.显影剂容器4还装有显影剂剥离以及与图像载体3相对地自由旋转地形成的供给装置13.显影剂剥离和供给装置13在与显影剂载体3相对的部分附近的间隔处形成磁场，一旦将图像载体3上的双组分显影剂2剥离靠近相对的部分并将新鲜的双组分显影剂供应到显影剂载体3中。（C）2005年，JPO和NCIPI

27. 发明专利

JP2004198661A Development device and image forming apparatus using it 有权
公开(公告)号：JP2004198661A
公开(公告)日：2004-07-15
申请号：JP2002365817
申请日：2002-12-17
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OZAKI YOSHIFUMI , NODA AKIHIKO , OBA SHOTA , YAMAURA MASAAKI
IPC分类号： G03G15/09 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To improve the response of the autonomous control of the electrostatic charge and toner concentration of developer and to obtain uniform development characteristics free from uneven concentration. SOLUTION: The development device includes: a developer storage part 3 which is adjacent to a developer carrier 1 and stores the developer G upstream a regulating member 2; a toner storage part 4 which is provided communicating with the developer carrier 1 via the developer storage part 3 and stores toner T so that the toner can be supplied; and a rotary member 5 which is disposed in the developer storage part 3, rotates in contact with or close to the developer carrier 1, and takes the toner T from the toner storage part 4 into the developer storage part 3 with the rotating force applied to the developer G in the developer storage part 3. Among the magnetic poles 11 of an electric field generation means 10, the magnetic force pattern of the electrode 11 (e.g., 11c) that is closest to the rotary member 5 is disposed downstream the developer transport direction on the developer carrier 1 with respect to the facing part Q of the developer carrier 1 and rotary member 5. COPYRIGHT: (C)2004,JPO&NCIPI

28. 发明专利

JP2003270975A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2003270975A
公开(公告)日：2003-09-25
申请号：JP2002074679
申请日：2002-03-18
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NODA AKIHIKO , OBA SHOTA
IPC分类号： G03G15/02 , G03G15/05 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To prolong the service life of a latent image carrier by eliminating a cleaning member for the latent image carrier. SOLUTION: A latent image forming apparatus 1 having the latent image carrier 4, a contact type electrifying member 5 and an exposure device 6 is incorporated in an endless intermediate transfer body 2. Accordingly, the latent image carrier 4 is thoroughly separated from a developer. The intermediate transfer body 2 is formed of a sheet which has resistivity of 10 10 Ω/cm and a relationship between thickness t (μm) and relative permittivity ε of t/ε≤50, or an anisotropic electrically conductive sheet having higher resistivity in a direction along a surface compared to a direction vertical to the surface. Accordingly, the diffusion and the attenuation of a development field is prevented. A charge injection layer 10 such as a semi-conducting layer or an anisotropic electrically conductive layer is provided on the surface of the photoconductive layer 9 of the latent image carrier 4. Accordingly, an electric charge is applied to the surface of the latent image carrier 4 while preventing the flow of an electrostatic latent image and the diffusion of a photo carrier. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过消除潜像载体的清洁部件来延长潜像载体的使用寿命。解决方案：将具有潜像载体4，接触型充电构件5和曝光装置6的潜像形成装置1并入到环形中间转印体2中。因此，潜像载体4从一个开发者中间转印体2由具有10 10Ω/ cm的电阻率和t /ε≤50的厚度t（μm）和相对介电常数ε之间的关系的片材或各向异性电导电片在垂直于表面的方向上沿着表面的方向具有较高的电阻率。因此，防止了显影场的扩散和衰减。在潜像载体4的光电导层9的表面上设置诸如半导体层或各向异性导电层的电荷注入层10.因此，在潜像载体的表面上施加电荷同时防止静电潜像的流动和光载体的扩散。版权所有（C）2003，JPO

29. 发明专利

JP2014238454A 画像形成装置有权
标题翻译：图像形成装置
公开(公告)号：JP2014238454A
公开(公告)日：2014-12-18
申请号：JP2013120051
申请日：2013-06-06
申请人：富士ゼロックス株式会社 , Fuji Xerox Co Ltd
发明人： YAMAURA MASAAKI , NAKAO YOSHIAKI , SHIMADA YASUHIRO , TOMINAGA YOSHIYUKI
IPC分类号： G03G15/14 , G03G15/16
摘要：【課題】転写域下流側における記録材の詰まり現象を有効に防止する。【解決手段】記録材Sに対向する対向部材1aを有し、画像Gを保持して移動する移動体1と、移動体1に接触した状態で対向部材1aに対向して配置され、移動体1との間の接触域nで記録材Sを挟持搬送し、当該移動体1に保持された画像Gを記録材Sに転写する転写部材2と、接触域nよりも記録材Sの搬送方向の下流側に設けられ、記録材Sの搬送方向に交差する幅方向に沿って延び、記録材Sの転写部材2側である裏面との間に対し記録材S剥離のための剥離用電界Ehを形成する剥離電極3と、移動体1と転写部材2との接触域nを通過する記録材Sとの幅方向における排出姿勢の変化を考慮し、記録材Sの幅方向の中央部と端部とに作用する剥離電極3により形成される電界強度の差を小さくするように、剥離電極3と記録材Sとの間に形成される剥離用電界Ehを、剥離電極3の長手方向の中央部と端部とで異ならせるように調整する調整装置5と、を備える。【選択図】図1
摘要翻译：要解决的问题：有效地防止传送区域的下游侧的记录材料卡住。图像形成装置包括：移动体1，其具有面向记录材料S的面向构件1a并与图像G一起移动举行; 与移动体1接触并与相对构件1a相对配置的传送构件2将记录材料S与移动体1保持在接触区域n以传送它，并且传送保持在移动体上的图像G 1到记录材料S; 分离电极3，其沿着与记录材料S的输送方向交叉的宽度方向延伸设置在记录材料S的输送方向上的接触区域n的下游，形成用于将记录材料S分离的分离电场Eh，记录材料S的面向传送构件2的后表面; 并且调整装置5将分离电极3和记录材料S之间形成的分离电场Eh调整为在分离电极3的中心部分和纵向方向上的端部之间不同的分离电场Eh，以减小分离电极3和记录材料S之间的差异考虑到在记录材料S通过接触面积n时在宽度方向上的放电姿态的变化，由分离电极3形成并施加到记录材料S的宽度方向的中心部分和端部的场强形成在移动体1和转印体2之间。

30. 发明专利

JP2014085577A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2014085577A
公开(公告)日：2014-05-12
申请号：JP2012235480
申请日：2012-10-25
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NAKATSUHARA SEIYA , WATANABE SHO
IPC分类号： G03G15/14 , G03G21/00 , G03G21/10
CPC分类号： G03G15/168 , G03G2215/0129 , G03G2215/1661
摘要： PROBLEM TO BE SOLVED: To suppress stains generated on a rear face of a recording medium on which a toner image is transferred.SOLUTION: An image forming apparatus estimates the transfer toner amount in which a toner of a transfer target image formed between transfer images to be transferred to a recording medium is transferred to a secondary transfer belt 28, at a secondary transfer position 30 where a toner image formed by transferring a toner onto a latent image with the use of a difference between electrostatic potentials from an intermediate transfer belt 20 to the recording medium. The image forming apparatus calculates a potential difference generated at the second transfer position when the transfer target image reaches the second transfer position after the transfer bias voltage is switched from a first bias voltage value to be applied at the time of passing of the transfer images to a second bias voltage value to be applied at the time of passing of the transfer target image, and estimates the transfer toner amount on the basis of the potential difference. The image forming apparatus applies a bias voltage for cleaning between a first cleaning member 31 provided to be in contact with the secondary transfer belt and a secondary transfer roll 26, and controls the bias voltage value for cleaning on the basis of the transfer toner amount.
摘要翻译：要解决的问题：抑制在其上转印有调色剂图像的记录介质的背面上产生的污渍。图像形成装置估计在转印图像之间形成的转印目标图像的调色剂转印到转印到记录介质上的二次转印带28转印到二次转印位置30，在二次转印位置30处，通过使用中间转印带20的静电电位差转印调色剂到潜像而形成的调色剂图像，记录介质。图像形成装置计算在从传送图像经过时施加的第一偏置电压值切换到转印偏压之后转印目标图像到达第二转印位置时在第二转印位置处产生的电位差，在转印目标图像通过时施加的第二偏置电压值，并且基于该电位差来估计转印调色剂量。图像形成装置在设置成与二次转印带接触的第一清洁构件31和二次转印辊26之间施加用于清洁的偏置电压，并且基于转印调色剂量来控制用于清洁的偏置电压值。

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