公开(公告)号：JP2010271426A

公开(公告)日：2010-12-02

申请号：JP2009121463

申请日：2009-05-19

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO ,  IWAMATSU TADASHI ,  HIRAKAWA HIROYUKI ,  NAGAOKA AYAE ,  IMURA YASURO

IPC: G03G15/20

Abstract: PROBLEM TO BE SOLVED: To provide a fixing device capable of preventing electrostatic offset by reducing a potential difference due to triboelectrification of a pair of rotors by perfectly ozone-less and simple constitution and control. SOLUTION: A potential adjusting device 15e of the fixing device 15 includes: an electron emitting element 15h having an electron acceleration layer 303h held between an electrode substrate 301 and a thin film electrode 302; a first power supply V1 applying voltage between the electrode substrate 301 and the thin film electrode 302 so as to accelerate electron in the electron acceleration layer 303h and emit it from the thin film electrode 302; and a second power supply V2 applying voltage between the thin film electrode 302 and a fixing roller 15a. The thin film electrode 302 is arranged to be opposed to the fixing roller 15a, and the electron acceleration layer 303h includes a particulate layer containing insulation particulates. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够通过完全无臭氧，简单的结构和控制，减少由于一对转子的摩擦带电造成的电位差而能够防止静电偏移的固定装置。 解决方案：定影装置15的电位调节装置15e包括：电子发射元件15h，其具有保持在电极基板301和薄膜电极302之间的电子加速层303h; 第一电源V1在电极基板301和薄膜电极302之间施加电压，以加速电子加速层303h中的电子，并从薄膜电极302发射电子; 以及在薄膜电极302和定影辊15a之间施加电压的第二电源V2。 薄膜电极302被布置成与定影辊15a相对，并且电子加速层303h包括含有绝缘微粒的颗粒层。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010267493A

公开(公告)日：2010-11-25

申请号：JP2009117867

申请日：2009-05-14

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NAGAOKA AYAE ,  HIRAKAWA HIROYUKI ,  IMURA YASURO ,  IWAMATSU TADASHI

IPC: H01J9/02 ,  B01J19/12 ,  F25D23/00 ,  G03G15/02 ,  H01J1/312 ,  H01J31/12 ,  H01J63/02

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing an electron emitting element for making a small amount of conductive particulates exist uniformly in a desired region, simply and at a low cost, and for making stable and excellent electron emission. SOLUTION: The forming process of an electron acceleration layer 4 of the electron emitting element 1 includes a particulate layer forming process in which a particulate layer containing insulator particulates 5 is formed by coating a dispersion liquid in which the insulator particulates 5 are dispersed, and a conductive particulate coating process in which a dispersion liquid of conductive particulates 6 is coated on the particulate layer by an inkjet method. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造少量导电颗粒的电子发射元件的方法，其在所需区域中以简单且低成本均匀地存在，并且用于使电子发射稳定和优异。 解决方案：电子发射元件1的电子加速层4的形成过程包括通过涂覆其中分散有绝缘体颗粒5的分散液形成含有绝缘体微粒5的颗粒层的颗粒层形成工艺 和通过喷墨法将导电性粒子6的分散液涂布在粒状层上的导电性粒状涂布法。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010230941A

公开(公告)日：2010-10-14

申请号：JP2009077765

申请日：2009-03-26

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YOSHIOKA NOBUYUKI ,  KAMOTO TAKANORI ,  WADA OSAMU ,  IWAMATSU TADASHI

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus efficiently collecting a carrier sticking to the surface of a photoreceptor, on which a toner image is formed, without deteriorating image quality. SOLUTION: The image forming apparatus 1 includes the photoreceptor 10 carrying an electrostatic latent image, and a development means 20 developing the electrostatic latent image by a two-component developer containing the carrier and a toner. In the development means 20, a developing roller 21 supplies the toner to the electrostatic latent image, a carrier collection roller 23, to which a bias voltage with polarity equal to the charging polarity of the toner is applied by a carrier collection bias power supply 24, collects the carrier sticking to the photoreceptor 10. In this process, a vibration means 25 applies mechanical vibration to the carrier collection roller 23. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种图像形成装置，其有效地收集粘附到其上形成有调色剂图像的感光体的表面的载体，而不会降低图像质量。 解决方案：图像形成装置1包括承载静电潜像的感光体10和显影装置20，其通过含有载体的二组分显影剂和调色剂显影静电潜像。 在显影装置20中，显影辊21将调色剂供给到静电潜像，载体收集辊23通过载体收集偏压电源24施加极性等于调色剂的充电极性的偏置电压 收集承载在感光体10上的载体。在此过程中，振动装置25对载体收集辊23施加机械振动。版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010182522A

公开(公告)日：2010-08-19

申请号：JP2009024596

申请日：2009-02-05

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： IWAMATSU TADASHI ,  HIRAKAWA HIROYUKI ,  NAGAOKA AYAE ,  IMURA YASURO

IPC: H01J1/312 ,  G03G15/02 ,  H01J31/12 ,  H01J63/06

Abstract: PROBLEM TO BE SOLVED: To provide an electron emitting element which can stably emit ballistic electrons emitted from an electrode at an electron emitting side by optimizing the thickness of the electrode at the electron emitting side in consideration of sizes of insulator particles, by securing electrical conduction and by making a sufficient current flow in the element. SOLUTION: The electron emitting element 1 includes a particulate layer 4 between a substrate 2 and an upper electrode 3, and the particulate layer 4 includes metal particulates 6 and insulator particulates 5 each having an average particulate diameter which is greater than that of the metal particulate 6. Then, when the average particulate diameter of the insulator particulate 5 is x (nm), and the thickness of the upper electrode 3 is y (nm), a relational expression of 0.3x+3.9≤y≤75 is satisfied. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种电子发射元件，其可以考虑到绝缘体颗粒的尺寸，通过优化电子发射侧的电极的厚度来稳定地发射从电子发射侧的电极发射的弹道电子，通过 确保电气传导并通过在元件中产生足够的电流。 解决方案：电子发射元件1包括在基板2和上电极3之间的颗粒层4，并且颗粒层4包括金属颗粒6和绝缘子颗粒5，每个平均颗粒直径大于 然后，当绝缘体颗粒5的平均粒径为x（nm），上电极3的厚度为y（nm）时，0.3x +3.9≤y≤75的关系式为 满意。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010139742A

公开(公告)日：2010-06-24

申请号：JP2008315748

申请日：2008-12-11

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： IMURA YASURO ,  HIRAKAWA HIROYUKI ,  NAGAOKA AYAE ,  IWAMATSU TADASHI

IPC: G03G15/20

Abstract: PROBLEM TO BE SOLVED: To provide a fixing apparatus imparting a suitable gloss to an image while preventing a hot offset more effectively than a conventional one by performing efficient non-contact cooling of a fixing belt heated in fixing.
SOLUTION: An electron emitting device 15e for cooling the fixing belt 15c includes: an electron emitting element 15h; a first power source V1 applying voltage between an electrode substrate 301 and a thin-film electrode 302 so that electrons are accelerated in an electron accelerating layer 303 of the electron emitting element 15h and emitted from the thin-film electrode 302; and a second power source V2 applying voltage between the thin-film electrode 302 and the fixing belt 15c. The thin-film electrode 302 is disposed facing the fixing belt 15c, and the electron accelerating layer 303 includes metal particles 307 of high antioxidant power, and insulator particles 306 larger than the size of the metal particles 307.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：通过对定影加热的定影带进行有效的非接触式冷却，提供一种赋予图像适当光泽的定影装置，同时防止热偏移比常规偏移更有效。 解决方案：用于冷却定影带15c的电子发射器件15e包括：电子发射元件15h; 在电极基板301和薄膜电极302之间施加电压的第一电源V1，使得电子在电子发射元件15h的电子加速层303中被加速并从薄膜电极302发射; 以及在薄膜电极302和定影带15c之间施加电压的第二电源V2。 薄膜电极302配置成面对定影带15c，并且电子加速层303包括高抗氧化力的金属颗粒307和大于金属颗粒307的尺寸的绝缘体颗粒306.权利要求（C ）2010，JPO＆INPIT

公开(公告)号：JP2009025794A

公开(公告)日：2009-02-05

申请号：JP2008107336

申请日：2008-04-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NAGAOKA AYAE ,  ARIYOSHI SATOSHI ,  IWAMATSU TADASHI ,  MATSUMOTO KATSURU

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

Abstract: PROBLEM TO BE SOLVED: To provide a toner composed of small particles which excels in a cleaning property, a transferring property and charge uniformity, a method of manufacturing the toner, a two-component developer, a developing device, and an image forming apparatus.
SOLUTION: The toner contains a binder resin and a colorant, and the outline of a projected image in which the external shape is projected on a plane surface has one or more and three or less bending points. Consequently the toner has a non-spherical external shape, and therefore it is caught easily by a cleaning blade. Further it comes into point contact with an object to be transferred, it achieves both of cleaning property and transferring property.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供由清洁性，转印性和电荷均匀性优异的小颗粒构成的调色剂的制造方法，双组分显影剂，显影装置和图像 成型装置。 调色剂含有粘合剂树脂和着色剂，外观形状投影在平面上的投影图像的轮廓具有一个或多个和三个或更少的弯曲点。 因此，调色剂具有非球形的外部形状，因此易于被清洁刮板卡住。 此外，它与要转移的物体形成点接触，它实现了清洁性能和转印性能。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009002941A

公开(公告)日：2009-01-08

申请号：JP2008131911

申请日：2008-05-20

Applicant: Kyoto Univ ,  Sharp Corp ,  シャープ株式会社 ,  国立大学法人京都大学

Inventor： MATSUZAKA SHUJI ,  MASUDA HIROAKI ,  IWAMATSU TADASHI

IPC: G01N27/60

Abstract: PROBLEM TO BE SOLVED: To provide a charged quantity distribution measuring device and a charged quantity distribution measuring method, capable of sampling a charged particulate without disturbing an air current of a charged quantity distribution measuring part, in charged quantity distribution measurement of a gravitational precipitation type.
SOLUTION: This charged quantity distribution measuring device 1 has a charged quantity distribution measuring part 100, a particulate sampling part 200 and a particulate dispersing part 600. The charged quantity distribution measuring part 100 measures a distribution characteristic of a charged quantity of the introduced charged corpuscle. The particulate sampling part 200 is arranged on the charging quantity distribution measuring part 100. The particulate sampling part 200 introduces the charged particulate into the charged quantity distribution measuring part 100 while collecting the charged particulate. The particulate dispersing part 600 is arranged on the particulate sampling part 200. The particulate dispersing part 600 supplies the charged particulate to the particulate sampling part 200 by dispersing the charged particulate by ultrasonic vibration.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种能够对带电粒子进行取样而不干扰充电量分布测量部分的气流的带电量分布测量装置和充电量分布测量方法， 重力降水型。 该充电量分布测量装置1具有充电量分布测量部件100，颗粒取样部件200和颗粒分散部件600.充电量分布测量部件100测量该充电量分布测量部件100的充电量的分布特性。 引入带电微粒。 微粒取样部200配置在充电量分布测定部100上。微粒取样部200在收集带电粒子的同时将带电粒子引入充电量分布测定部100。 颗粒分散部600布置在颗粒状取样部200上。颗粒分散部600通过超声波振动分散带电粒子而将带电粒子供给到微粒取样部200。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008298890A

公开(公告)日：2008-12-11

申请号：JP2007142620

申请日：2007-05-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  IWAMATSU TADASHI ,  KAMOTO TAKANORI ,  YOSHIOKA NOBUYUKI ,  HIRAKAWA HIROYUKI ,  HARA TAKASHI

IPC: G03G9/097 ,  G03G9/08 ,  G03G9/113 ,  G03G15/08

CPC classification number: G03G9/097 ,  G03G9/08 ,  G03G9/113 ,  G03G9/1132 ,  G03G9/1136 ,  G03G9/1138 ,  G03G9/1139

Abstract: PROBLEM TO BE SOLVED: To provide a developer that stabilizes and maintains a charge amount of toner, and outputs an image of high picture quality for a long period of time. SOLUTION: The developer 1 contains a carrier 2 and a toner 3, wherein the toner 3 contains a charge control agent, the carrier 2 has a coating layer 2b on the surface to which a charge control agent and conductive particles are added, and the entire structural elements in either the charge control agent of the toner 3 or in the charge control agent of the carrier 2 are included in the structural elements of the other. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供稳定并保持调色剂的电荷量的显影剂，并且长时间输出高图像质量的图像。 解决方案：显影剂1含有载体2和调色剂3，其中调色剂3含有电荷控制剂，载体2在添加电荷控制剂和导电颗粒的表面上具有涂层2b， 并且调色剂3的电荷控制剂或载体2的电荷控制剂中的整个结构元素包括在另一个的结构元件中。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008256868A

公开(公告)日：2008-10-23

申请号：JP2007097862

申请日：2007-04-03

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NISHIO SHIGERU ,  KANDA HIROFUMI ,  IWAMATSU TADASHI

IPC: G03G15/02 ,  H01T19/04

Abstract: PROBLEM TO BE SOLVED: To provide an electrifying unit for an image forming apparatus obtaining a stable electrifying property by suppressing deterioration in the electrifying unit or components of periphery of the electrifying unit, etc, caused by ozone and NOx generated when an electrostatic latent body carrier is electrified and furthermore suppressing adhesion of foreign matter to a discharge electrode.
SOLUTION: The electrifying unit 1 includes the discharge electrode 2 and a case 3 for storing the discharge electrode 2. The case 3 is provided with a first opening 10 and the area of the opening surface of the first opening 10 is smaller than the area of a section of the case 3 going through the discharge electrode 2 and being in a direction which is in parallel to the opening surface. The case 3 further includes a second opening 11 in a position different from the first opening 10.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种图像形成装置的通电单元​​，其通过抑制由静电中产生的臭氧和NOx引起的通电单元​​的充电单元或周边的部件的劣化而获得稳定的通电性能 潜体载体带电，并且进一步抑制异物与放电电极的粘附。

解决方案：充电单元1包括放电电极2和用于存放放电电极2的壳体3.壳体3设置有第一开口10，并且第一开口10的开口表面的面积小于 壳体3的通过放电电极2并且与开口表面平行的方向的区域的面积。 壳体3还包括与第一开口10不同的位置的第二开口11.版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007004206A

公开(公告)日：2007-01-11

申请号：JP2006265332

申请日：2006-09-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： FURUKAWA KAZUHIKO ,  IWAMATSU TADASHI ,  HIRAKAWA HIROYUKI ,  TOYOSHIMA TETSURO

IPC: G03G15/08 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a developing method by which even in high-resolution image formation, stable gradation is realized by stably forming smaller dots without granularity in a low density portion, and enhancement of image quality and stability of development are achieved by obtaining sufficient density in a high density portion, and to provide an image forming apparatus. SOLUTION: Development is performed with such developing characteristics that the rate of increase of development density to increase of potential difference between a photoreceptor 1 and a developing roller 41 varies between a region where the potential difference is small and a region where the potential difference is large, the rate of increase of development density in the region where the potential difference is small is lower than that in the region where the potential difference is large, and the upper limit of development density in the region where the rate of increase of development density is lower is ≥0.3. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了提供即使在高分辨率图像形成中，通过在低密度部分中稳定地形成更小的颗粒度而实现稳定的灰度，并且提高图像质量和显影稳定性的显影方法 通过在高密度部分获得足够的密度来实现，并且提供图像形成装置。 解决方案：以这样的显影特性进行显影，即显影密度增加到感光体1和显影辊41之间的电位差增加的速率在电位差小的区域和电位差的区域之间变化 差异很大，电位差小的区域的发展密度增加率低于电位差大的地区，发电密度增加幅度上限 发育密度较低≥0.3。 版权所有（C）2007，JPO＆INPIT