公开(公告)号：JP2011075855A

公开(公告)日：2011-04-14

申请号：JP2009227527

申请日：2009-09-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAMOTO TAKANORI ,  YAMANAKA TAKAYUKI ,  WADA OSAMU ,  IWAMATSU TADASHI

IPC: G03G9/113 ,  G03G9/09 ,  G03G9/107

Abstract: PROBLEM TO BE SOLVED: To provide a carrier for forming a high-quality image while simplifying the manufacturing process and reducing the manufacturing cost.
SOLUTION: This carrier 2 is a carrier 2 for a two-component developer. The carrier 2 includes a carrier core material 2a having a volume average particle diameter of 25 μm or larger and 50 μm or smaller and a coating 2b that contains silicone resin having the average molecular weight of 5,000 or smaller as the principal component and covers the carrier core material 2a. The coating 2b is formed by applying heat and impact force to a mixture of resin composition containing silicone resin and the carrier core material 2a.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供用于形成高质量图像的载体，同时简化制造过程并降低制造成本。 解决方案：该载体2是用于双组分显影剂的载体2。 载体2包括体积平均粒径为25μm以上且50μm以下的载体芯材2a和含有平均分子量为5000以下的硅酮树脂作为主要成分并覆盖载体的涂层2b 芯材2a。 涂层2b通过对含有硅树脂的树脂组合物和载体芯材2a的混合物施加热和冲击力而形成。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011064916A

公开(公告)日：2011-03-31

申请号：JP2009214982

申请日：2009-09-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMANAKA TAKAYUKI ,  KAMOTO TAKANORI ,  WADA OSAMU ,  IWAMATSU TADASHI

IPC: G03G9/113

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a resin-coated carrier, in which a carrier core material comprising a porous material having voids therein is used, and a resin-coated carrier having no resin in the voids can be obtained with a smaller amount of the resin.
SOLUTION: The method for producing a resin-coated carrier comprising a carrier core material and a resin coating layer formed on the surface of the carrier core material includes an immersion step and heat-drying step. In the immersion step, the carrier core material comprising a porous material having voids therein is immersed in an immersion liquid containing a resin and a foaming agent dissolved or dispersed in a solvent so as to obtain an impregnated carrier core material having the voids impregnated with the immersion liquid. In the heat-drying step, the impregnated carrier core material is heated while agitated at a temperature equal to or higher than the boiling point of the solvent and equal to or higher than the decomposition temperature of the foaming agent to form a film of the resin on the surface of the carrier core material, thereby obtaining the resin-coated carrier having a resin coating layer on the surface of the carrier core material.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制备树脂涂布载体的方法，其中使用包含其中具有空隙的多孔材料的载体芯材料，并且在空隙中不具有树脂的树脂涂布载体可以是 用较少量的树脂获得。 解决方案：在载体芯材表面上形成载体芯材和树脂涂层的树脂涂布载体的制造方法包括浸渍工序和加热干燥工序。 在浸渍步骤中，将包含其中具有空隙的多孔材料的载体芯材浸渍在含有溶解或分散在溶剂中的树脂和发泡剂的浸渍液中，以获得浸渍的载体芯材料，其浸渍有空隙 浸液 在加热干燥步骤中，将浸渍的载体芯材料在等于或高于溶剂沸点的温度下搅拌加热等于或高于发泡剂的分解温度以形成树脂膜 在载体芯材的表面上，由此获得在载体芯材表面上具有树脂涂层的树脂涂布载体。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010276678A

公开(公告)日：2010-12-09

申请号：JP2009126403

申请日：2009-05-26

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMANAKA TAKAYUKI ,  TORIYAMA KOICHI ,  FUKUSHIMA KOTARO ,  MATSUMOTO MASANORI

IPC: G03G5/06

CPC classification number: G03G5/0696 ,  G03G15/75

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus which is less apt to produce optical deterioration due to long-time use, and enables printing for stable high printing resolution.
SOLUTION: The image forming apparatus includes a photoreceptor containing titanyl phthalocyanine, having absorption in a wavelength region of 380-420 nm and in a wavelength region of 600-850 nm as a charge generating material; an exposure means whose exposure light has a wavelength of 380-420 nm; and a static eliminating means whose static eliminating light has a wavelength of 600-850 nm.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种由于长时间使用而不易产生光学劣化的图像形成装置，并且能够进行印刷以获得稳定的高印刷分辨率。 解决方案：图像形成装置包括在380-420nm的波长区域和600-850nm的波长范围内具有吸收的氧钛酞菁作为电荷产生材料的感光体; 曝光装置，其曝光光的波长为380-420nm; 以及静电消除装置，其静电消除光的波长为600-850nm。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010164945A

公开(公告)日：2010-07-29

申请号：JP2009234379

申请日：2009-10-08

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OBATA TAKATSUGU ,  KONDO AKIHIRO ,  YAMANAKA TAKAYUKI

IPC: G03G5/00 ,  G03G5/047 ,  G03G5/06 ,  G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide a highly reliable electrophotographic photosensitive member reducing a load in environment in a photosensitive member manufacturing process, achieving high stability in production, preventing the occurrence of fluctuation of sensitivity depending on environment, and providing a high quality image without defect in image such as memory image, and also to provide an image forming device equipped with it. SOLUTION: In this electrophotographic photosensitive member, an intermediate layer is provided between an electrical conductive support body and a photosensitive layer and is formed after it is heat hardened from a coating liquid for the intermediate layer including a block isocyanate compound, a resin having two groups containing active hydrogen reacting with isocyanate group in the block isocyanate compound or more, inorganic oxide particulates, and an aqueous medium. The photosensitive layer is a monolayer photosensitive layer containing at least an electric charge generating substance and an electric charge transport substance or a laminated photosensitive layer constituted by laminating an electric charge generating layer containing the electric charge generating substance and an electric charge transport layer containing the electric charge transport substance in this order or in the reverse order. The electric charge generating substance is oxotitanium phthalocyanine having a crystal structure. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供在感光构件制造工艺中减小环境中的负载的高度可靠的电子照相感光构件，实现高生产稳定性，防止根据环境的灵敏度的波动的发生，并且提供高质量 图像中没有缺陷的图像，例如存储器图像，并且还提供配备有它的图像形成装置。 解决方案：在该电子照相感光构件中，在导电性支撑体和感光层之间设置中间层，并且在从包含嵌段异氰酸酯化合物的中间层用涂布液热固化后形成树脂 具有在嵌段异氰酸酯化合物中含有与异氰酸酯基反应的活性氢的两个以上的基团，无机氧化物微粒和水性介质。 感光层是至少含有电荷产生物质和电荷输送物质的单层感光层，或者是层叠含有电荷产生物质的电荷产生层和含有电荷输送物质的电荷输送层构成的层叠感光层 电荷运输物质按此顺序或相反的顺序。 电荷产生物质是具有晶体结构的氧钛酞菁。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010113005A

公开(公告)日：2010-05-20

申请号：JP2008283261

申请日：2008-11-04

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OBATA TAKATSUGU ,  KONDO AKIHIRO ,  YAMANAKA TAKAYUKI

IPC: G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide a coating solution for the intermediate layer of a photosensitive body having an organic photosensitive layer using water having the smallest environmental load as a solvent and also having excellent stability of liquid physical properties with the lapse of time also in production, to provide a photosensitive body having the intermediate layer formed using the same and having excellent repeating properties and environmental stability, and to provide an image forming apparatus provided therewith. SOLUTION: The coating solution for the intermediate layer of an electrophotographic photosensitive body having an organic photosensitive layer includes: a block isocyanate compound; a resin having two or more active hydrogen-containing groups capable of reacting with an isocyanate group in the block isocyanate compound; and a water base medium. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了使用具有最小环境负荷的水作为溶剂的具有有机感光层的感光体的中间层的涂布溶液，并且随着时间的流逝也具有优异的液体物理性质的稳定性 也在生产中提供具有使用该中间层形成的中间层并且具有优异的重复性和环境稳定性的感光体，并且提供了一种提供其的图像形成装置。 解决方案：具有有机感光层的电子照相感光体的中间层用涂布液包括：嵌段异氰酸酯化合物; 具有能够与嵌段异氰酸酯化合物中的异氰酸酯基反应的具有两个以上的含活性氢基团的树脂; 和水基介质。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009204993A

公开(公告)日：2009-09-10

申请号：JP2008048513

申请日：2008-02-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NARIMATSU MASAYASU ,  KIDO EIICHI ,  NISHIMITSU EIJI ,  SAITO JUNICHI ,  YAMANAKA TAKAYUKI

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a developing device which prevents stay of toner on the supply roller surface and image unevenness without enlargement. SOLUTION: An air pump 33a is expanded and contracted by a cam 33b rotated interlocking with rotation of a developing roller 21, a toner supply roller 22 or a toner agitating conveying member 28 and forcibly feeds air to a blow pipe 32b. The air is fed through the blow pipe 32b to an air blow nozzle 31, blown off from each air blow hole 31a of the air blow nozzle 31, and blown to the toner in the vicinity of the toner supply roller 22, the developing roller 21, and the curved tip part 23a of a toner layer thickness regulating member 23. Thereby, the toner is efficiently loosened and favorably circulated by increase of the flowability, and stay of the toner in the vicinity of the toner layer thickness regulating member 23a of the toner layer thickness regulating member 23 is prevented. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种防止调色剂在供应辊表面上停留的显影装置和图像不均匀性，而不会增大。 解决方案：空气泵33a由与显影辊21，调色剂供应辊22或调色剂搅拌输送构件28的旋转互锁旋转的凸轮33b膨胀和收缩，并将空气强制送入吹塑管32b。 空气通过吹塑管32b被供给到吹气喷嘴31，从吹气喷嘴31的每个吹气孔31a吹出，吹送到调色剂供给辊22附近的调色剂，显影辊21 ，以及调色剂层厚度限制部件23的弯曲的尖端部分23a。由此，通过增加流动性，调色剂有效地松动和有利地循环，并且调色剂在调色剂层厚度限制部件23a附近的停留 调色剂层厚调节件23被防止。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009036805A

公开(公告)日：2009-02-19

申请号：JP2007198639

申请日：2007-07-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NARIMATSU MASAYASU ,  KIDO EIICHI ,  NISHIMITSU EIJI ,  YAMANAKA TAKAYUKI ,  SAITO JUNICHI

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a developing device using a monocomponent developer, having a fine developing characteristic, without generating filming in a developing device and filming onto a photoreceptor drum, and to provide an image forming device that uses the same. SOLUTION: In this developing device 10 for visualization of an electrostatic latent image formed on the photoreceptor drum 30 by toner as a toner image, a rib 40 for guiding conveyance of the toner conveyed inside a developing case 20 is formed to project inside the developing case 20, along the conveying direction of the toner conveyed by a toner supply roller 22, on an inner wall face 20c of the developing case 20 storing the toner. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种使用单组分显影剂的显影装置，具有良好的显影特性，而不会在显影装置中产生成膜并对感光鼓进行成膜，并提供使用该显影装置的图像形成装置。 解决方案：在用于通过调色剂作为调色剂图像在感光鼓30上形成的静电潜像的可视化的显影装置10中，形成用于引导在显影盒20内传送的调色剂的输送的肋40向内突出 显影盒20沿着由调色剂供应辊22输送的调色剂的输送方向在存储调色剂的显影盒20的内壁面20c上。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008145885A

公开(公告)日：2008-06-26

申请号：JP2006335048

申请日：2006-12-12

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NARIMATSU MASAYASU ,  NISHIMITSU EIJI ,  YAMANAKA TAKAYUKI ,  KIDO EIICHI

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To form a high quality image in which the generation of image defects such as white stripes and uneven image and the generation of filming are extremely reduced and high and uniform image density is maintained by preventing the fusion of toner to a layer thickness regulating blade in a non-magnetic one-component developing device. SOLUTION: In the developing device 1 comprising a developer tank 5, a developing roller 6, a feed roller 7, an agitation member 8, and a layer thickness regulating member 9 provided with a layer thickness regulating blade 10 and using an one-component developer 3; the surface hardness of the developing roller 6 is set to 55 to 60° (JIS-A hardness) and the abutting pressure of the layer thickness regulating blade 10 on the developing roller 6 is set to 0.290 to 0.985 N/cm in linear pressure. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了形成高质量图像，其中产生诸如白条纹和不均匀图像的图像缺陷以及成膜的产生极大地减少，并且通过防止调色剂的熔化来保持高且均匀的图像浓度 涉及非磁性单组分显影装置中的层厚度调节片。 解决方案：在包括显影剂罐5，显影辊6，进料辊7，搅拌构件8以及设置有层厚度调节刮刀10并使用一层的厚度限制构件9的层厚限制构件9的显影装置1中 组件开发商3; 显影辊6的表面硬度设定为55〜60°（JIS-A硬度），并且显影辊6上的层厚限制刮板10的对接压力在线性压力下设定为0.290〜0.985N / cm。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008145884A

公开(公告)日：2008-06-26

申请号：JP2006335047

申请日：2006-12-12

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NISHIMITSU EIJI ,  NARIMATSU MASAYASU ,  YAMANAKA TAKAYUKI ,  KIDO EIICHI

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To form a high quality image preventing image defects such as white stripes and uneven image and filming with high and uniform image density by removing toner aggregation, foreign substances, or the like stored in a press-contact part between a layer thickness regulating blade and a developing roller and preventing the fusion of toner to the layer thickness regulating blade in a non-magnetic one-component developing device. SOLUTION: In the developing device 1 comprising a developing vessel 5, a developing roller 6, a feed roller 7, an agitation member 8, a layer thickness regulating member 9, a motor 15, a power supply 16, and a control means 17; the control means 17 controls the rotational speed of the feed roller 7 through the motor 15 and the power supply 16 to increase the rotational speed of the feed roller 7 when not developed as compared with when developed so that the thickness of a developer layer on the surface of the developing roller 6 is increased when not developed as compared with when developed, while rotating, the developing roller 6. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：通过去除存储在压接部分中的调色剂聚集，异物等形成高质量图像，防止诸如白色条纹和不均匀图像的图像缺陷和具有高和均匀图像密度的成像 在层厚度调节片和显影辊之间，并且防止调色剂在非磁性单组分显影装置中与层厚度调节片熔合。 解决方案：在包括显影容器5的显影装置1中，显影辊6，进料辊7，搅拌构件8，层厚调节构件9，马达15，电源16和控制 手段17 控制装置17通过马达15和电源16控制进给辊7的旋转速度，以便在不显影时增加进给辊7的旋转速度，与显影时相比，显影剂层的厚度 显影辊6的表面在显影辊6的旋转时与显影时相比不显影时增加。（C）2008，JPO＆INPIT

公开(公告)号：JP2007240772A

公开(公告)日：2007-09-20

申请号：JP2006061708

申请日：2006-03-07

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAZAKI YUICHI ,  NISHIMITSU EIJI ,  YAMANAKA TAKAYUKI ,  NAKAYA HIROAKI

IPC: G03G15/08 ,  G03G21/14

Abstract: PROBLEM TO BE SOLVED: To provide a developing device that forms an image of high picture quality free of an image defect such as a white stripe by preventing toner from being fused on a doctor blade by a simple mechanical structure requiring no electric control. SOLUTION: The developing device 1 including a development roller 3, the doctor blade, and a rotational driving means 11 for driving the development roller 3 to rotate has a driving force transmitting means 12, including a spring member 17, interposed between the development roller 3 and rotational driving means 11. The developing device 1 performs developing operation by transmitting rotational driving force to the development roller 3 through the spring member 17, makes the spring member 17 absorb part of the rotational driving force to shrink, and rotates the development roller 3 reversely to the rotation in the developing operation by using the restoring force of the spring member 17 in the shrinking state when the developing operation ends and no rotational driving force is applied, thereby removing a toner aggregation sticking on the doctor blade. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种显影装置，其通过防止调色剂通过不需要电气控制的简单的机械结构而在刮刀上熔合而形成没有诸如白色条纹的图像缺陷的高图像质量的图像 。 解决方案：包括显影辊3，刮刀和用于驱动显影辊3旋转的旋转驱动装置11的显影装置1具有驱动力传递装置12，驱动力传递装置12包括弹簧构件17， 显影辊3和旋转驱动装置11.显影装置1通过弹簧构件17将旋转驱动力传递到显影辊3，进行显影操作，使得弹簧构件17吸收旋转驱动力的一部分收缩，并使 显影辊3与显影操作中的旋转相反，当显影操作结束并且没有施加旋转驱动力时，通过使用处于收缩状态的弹性构件17的恢复力，从而去除在刮刀上粘附的调色剂聚集体。 版权所有（C）2007，JPO＆INPIT