公开(公告)号：JP2011081344A

公开(公告)日：2011-04-21

申请号：JP2010157330

申请日：2010-07-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  HARA TAKASHI ,  MUTO YOSHINORI ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI

IPC: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09371 ,  G03G9/09392

Abstract: PROBLEM TO BE SOLVED: To provide a capsule toner, a two-component developer, and a method for producing the capsule toner, in which a resin coating layer composed of fine release-agent particles and resin fine particles is formed on the surfaces of toner base particles, and thus excellent offset resistance is provided without impairing blocking resistance. SOLUTION: The capsule toner comprises: toner base particles containing a binder resin and a colorant; and a resin coating layer made of fine release-agent particles and fine resin particles, for covering the surfaces of toner base particles. The fine release-agent particles are dispersed in the resin coating layer. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种胶囊调色剂，双组分显影剂及其制造方法，其中在该微胶囊调色剂上形成由微细的脱模剂颗粒和树脂细颗粒组成的树脂涂层 调色剂基础颗粒的表面，因此具有优异的抗粘附性而不损害耐粘连性。 胶囊调色剂包括：含有粘合剂树脂和着色剂的调色剂基础颗粒; 以及用于覆盖调色剂基础颗粒的表面的由微细的脱模剂颗粒和细小树脂颗粒制成的树脂涂层。 细分离剂颗粒分散在树脂涂层中。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011013388A

公开(公告)日：2011-01-20

申请号：JP2009156333

申请日：2009-06-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TSUBAKI YORIHISA ,  KAWASE NORITAKA ,  KIKAWA KEIICHI ,  MUTO YOSHINORI ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a capsule toner having a uniform thickness of a coating layer, for improving image stability, fixability of the toner and high temperature stability of a developer.SOLUTION: The method for producing a capsule toner includes: a particulate mixture deposition step of mixing resin fine particles with silica fine particles and depositing the obtained particulate mixture on surfaces of toner base particles; a spraying step of spraying a liquid that plasticizes the particles on the toner base particles and the particulate mixture in a fluidized state; and a film-forming step of softening the resin fine particles depositing on the toner base particles to form a film. The particulate mixture contains silica fine particles having a particle diameter of 50% or more and 100% or smaller of the particle diameter of the resin fine particles, by 10 wt.% or more and 30 wt.% or smaller with respect to the resin fine particles.

Abstract translation: 要解决的问题：提供一种制备具有均匀涂层厚度的胶囊调色剂的方法，用于改善图像稳定性，调色剂的定影性和显影剂的高温稳定性。解决方案：胶囊调色剂的制备方法包括 ：将树脂细颗粒与二氧化硅细颗粒混合并将所得颗粒混合物沉积在调色剂基础颗粒的表面上的颗粒状混合物沉积步骤; 喷射步骤，其以流化状态喷洒将颗粒塑化在调色剂基础颗粒和颗粒混合物上的液体; 以及使沉积在调色剂基础颗粒上的树脂微粒软化以形成膜的成膜步骤。 颗粒状混合物含有相对于树脂为10重量％以上且30重量％以下的粒径为树脂微粒的直径为50％以上且100％以下的二氧化硅微粒 细颗粒。

公开(公告)号：JP2010230733A

公开(公告)日：2010-10-14

申请号：JP2009075235

申请日：2009-03-25

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  KAWASE NORITAKA ,  AKAZAWA YOSHIAKI ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI ,  HARA TAKASHI

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/10 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a toner manufacturing method that prevents an external additive from being separated from a toner surface and has excellent transfer efficiency for a long time, and to provide the toner produced by the method, a two-component developer which includes the toner and whose charge amount is hardly reduced, a developing device using the two-component developer, and an image forming device. SOLUTION: Surfaces of toner mother particles are coated with resin particles of 0.05 to 1 μm, impact force is applied while a plasticizing liquid is sprayed to form a coated layer comprising the resin particles while concave parts remain on the surface, and then fixed impact force is applied to spacer particles of 40 to 300 nm toward the surface concave parts while the plasticizing liquid is sprayed, to fix the spacer particles to the coated layer in a semi-buried state. The two-component developer including the toner thus produced is filled in the developing device of the image forming device to form an image. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种调色剂制造方法，其防止外部添加剂与调色剂表面分离并且长时间具有优异的转印效率，并且提供通过该方法生产的调色剂，二组分 包含调色剂并且其电荷量几乎不减少的显影剂，使用双组分显影剂的显影装置和图像形成装置。

解决方案：调色剂母粒子的表面涂覆有0.05至1μm的树脂颗粒，当喷塑塑化液体形成包含树脂颗粒的涂层同时凹面保留在表面上时施加冲击力，然后 在喷塑塑化液的同时，将固定的冲击力施加到表面凹部40〜300nm的间隔物颗粒，以将半导体层间隔物粒子固定在半埋层状态。 包括如此生产的调色剂的双组分显影剂被填充在图像形成装置的显影装置中以形成图像。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010204215A

公开(公告)日：2010-09-16

申请号：JP2009047310

申请日：2009-02-27

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI ,  HARA TAKASHI

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a toner producing method which forms resin microparticle layers uniform in layer thickness, on the surfaces of toner base particles, and prevents generation of aggregates caused by the toner base particles and the resin microparticles, and also prevents the toner base particles and the resin microparticles from adhering to the inner wall face of a toner-producing device; and to provide a toner produced by the method concerned, a two-component developer, a developing device, and an image-forming device. SOLUTION: A powder-flowing process S3 and a spraying process S4 are performed by using a toner-producing device 201 so that the following equations may be satisfied: 12≤(Fa+Fb)/Fc≤100 and 440≤Wt/Fc≤3,300, wherein Fa [L/min] represents the amount of a carrier gas supplied from a rotary shaft part 218, Fb [L/min] represents the amount of the carrier gas supplied from a spraying part 203, Fc [mL/min] represents the amount of a volatile liquid sprayed from the spraying part 203, and Wt [g] represents the total weight of powder. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种调色剂生产方法，其形成层厚度均匀的树脂微粒层，在调色剂基础颗粒的表面上，并且防止由调色剂基础颗粒和树脂微粒引起的聚集体的产生，以及 防止调色剂基础颗粒和树脂微粒粘附到调色剂生产装置的内壁面上; 并提供通过所述方法生产的调色剂，双组分显影剂，显影装置和图像形成装置。

解决方案：通过使用调色剂生成装置201进行粉末流动方法S3和喷射方法S4，使得可以满足以下等式：12≤（Fa + Fb）/Fc≤100和440≤Wt /Fc≤3,300，其中Fa [L / min]表示从旋转轴部218供给的载气量，Fb [L / min]表示从喷雾部203供给的载气量，Fc [mL / min]表示从喷射部203喷射的挥发性液体的量，Wt [g]表示粉末的总重量。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010145755A

公开(公告)日：2010-07-01

申请号：JP2008322968

申请日：2008-12-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI ,  HARA TAKASHI

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/0815 ,  G03G9/0825 ,  G03G9/09733

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing toner in high yield by coating surfaces of toner base particles with a resin layer while maintaining a fluidized state of the powder particles, and suppressing aggregation deposition of particles in an apparatus, and also to provide the toner obtained by the method, a developer containing the toner, and a developing device and an image forming apparatus using the developer. SOLUTION: The method for manufacturing the toner includes a premixing step and a coating film forming step. In the premixing step, toner base particles and resin fine particles are mixed and stirred so as to crush secondary aggregates of the resin fine particles by using a rotary stirring device equipped with a rotary stirring means, a temperature controlling means, a circulating means, and a spraying means, and the crushed resin fine particles are fixed to the surfaces of the toner base particles to obtain a toner with fixed resin fine particles. In the coating film forming step, a coating film of the resin fine particles is formed by using the rotary stirring device, by spraying a liquid to the toner with fixed resin fine particles by the spraying means. Temperatures are controlled by the temperature controlling means in the premixing step and the coating film forming step. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过在保持粉末颗粒的流化状态的同时用树脂层涂覆调色剂基础颗粒的表面并且抑制颗粒在装置中的聚集沉积而以高产率制造调色剂的方法，以及 还提供通过该方法获得的调色剂，含有调色剂的显影剂和显影装置以及使用该显影剂的图像形成装置。 调色剂的制造方法包括预混合步骤和涂膜形成步骤。 在预混合步骤中，通过使用配有旋转搅拌装置，温度控制装置，循环装置和旋转搅拌装置的旋转搅拌装置，将调色剂基础颗粒和树脂细颗粒混合并搅拌，从而粉碎树脂细颗粒的二次聚集体 喷涂装置，并且将破碎的树脂细颗粒固定到调色剂基础颗粒的表面，以获得具有固定树脂细颗粒的调色剂。 在涂膜形成步骤中，通过使用旋转搅拌装置，通过喷涂装置将具有固定树脂微粒的液体喷射到调色剂上来形成树脂细颗粒的涂膜。 在预混合步骤和涂膜形成步骤中，温度由温度控制装置控制。 版权所有（C）2010，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：JP2007292802A

公开(公告)日：2007-11-08

申请号：JP2006117170

申请日：2006-04-20

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI

IPC: G03G15/08 ,  G03G9/097 ,  G03G9/10 ,  G03G15/00

CPC classification number: G03G15/0848 ,  G03G9/0823 ,  G03G15/09 ,  G03G2215/0607

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of forming a high-quality image by preventing carrier deposition on an image carrier caused by peeling of a resin layer which coats the carrier due to long-term use of a developer resulting in decrease in the volume resistivity of the carrier. SOLUTION: The image forming apparatus is equipped with: a resistance detecting unit 14 which detects the volume resistivity of a two-component developer 11 held on the surface of a developer carrier 12; a resistance memory unit 16 which stores a preliminarily determined volume resistivity; a resistance comparing unit 15 which compares the volume resistivity of the two-component developer 11 detected by the resistance detecting unit 14 with a determined volume resistivity stored in the resistance memory unit 16; and a control unit 17 which executes a process of exchanging the two-component developer or the carrier when the volume resistivity of the two-component developer 11 decreases lower than the determined volume resistivity. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种图像形成装置，其能够通过防止由于长期使用显影剂而涂覆载体的树脂层的剥离引起的载体沉积在图像载体上而形成高质量图像 导致载体的体积电阻率降低。 解决方案：图像形成装置配备有：电阻检测单元14，其检测保持在显影剂载体12的表面上的双组分显影剂11的体积电阻率; 存储预先确定的体积电阻率的电阻存储单元16; 电阻比较单元15，其将由电阻检测单元14检测的双组分显影剂11的体积电阻率与存储在电阻存储单元16中的确定的体积电阻进行比较; 以及控制单元17，其当双组分显影剂11的体积电阻率降低到低于确定的体积电阻率时，执行交换双组分显影剂或载体的过程。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007108538A

公开(公告)日：2007-04-26

申请号：JP2005300966

申请日：2005-10-14

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI

IPC: G03G15/08 ,  G03G9/10 ,  G03G9/113 ,  G03G15/09

Abstract: PROBLEM TO BE SOLVED: To suppress induced charge injection into a carrier due to a development field which acts on a development area where an image bearing member and a developer bearing member confront each other, and to form a high quality image. SOLUTION: A surface of a metal sleeve 102 is coated with a resistance layer 103 the volume resistivity value of which is higher than that of a magnetic carrier 10 in a development nip part which is an area where a two-component developer 12 held by a developer bearing member 13 comes in contact with an image bearing member 14 opposite to the developer bearing member 13. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了抑制由于作用在图像承载部件和显影剂承载部件彼此面对的显影区域上的显影区域而导致的载流子注入，并且形成高质量图像。 解决方案：金属套管102的表面涂覆有电阻层103，电阻层103的体积电阻率值高于作为二组分显影剂12的区域的显影夹持部分中的磁性载体10的体积电阻率 由显影剂承载部件13保持的图像承载部件14与显影剂承载部件13相对的图像承载部件14接触。版权所有：（C）2007，JPO＆INPIT

公开(公告)号：JP2006062330A

公开(公告)日：2006-03-09

申请号：JP2004251068

申请日：2004-08-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  HIGUCHI KAORU

IPC: B41J2/175 ,  B05C5/00 ,  B05D1/26

Abstract: PROBLEM TO BE SOLVED: To avoid break of a meniscus formed on a nozzle surface of an ejection head which results from a sudden pressure variation at a sub tank when negative pressure is applied to the ejection head by reducing the pressure of the sub tank in a state with the discharge head and the sub tank made to communicate with each other in a fluid ejecting apparatus.
SOLUTION: A negative pressure arrival rate adjusting part 20 which controls a rate at the time when the sub tank 13 is brought to designated negative pressure is set between the sub tank 13 and a negative pressure generating part 19 which reduces the pressure of the sub tank 13.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了避免由于副罐突然的压力变化而在喷头的喷嘴表面上形成的弯液面的断裂，当通过减小副压力将负压施加到喷头时 在排出头和副罐的状态下，在流体喷射装置中彼此连通。 解决方案：在副罐13和负压产生部19之间设置负压到达率调节部20，负压到达率调节部20将副罐13的指定负压时的速度控制为负压产生部19， 副箱13.版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004029352A

公开(公告)日：2004-01-29

申请号：JP2002185060

申请日：2002-06-25

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  IWAMATSU TADASHI ,  FURUKAWA KAZUHIKO

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a developing device which can maintain uniformity of a developer layer for a long period by forming the developer layer which is free of layer thickness unevenness and electrostatic charging unevenness axially and circumferentially on a developer carrier. SOLUTION: The developing device is equipped with an electrostatic latent image carrier which has an electrostatic latent image formed on its surface, a developer carrier which carries a developer for developing the electrostatic latent image formed on the electrostatic latent image carrier, and a layer restriction part which restricts the layer thickness of the developer carried by the developer carrier; and the layer restriction part comprises a layer restricting body and a holder supporting the layer restricting body and the holder comprises a lever member having a force application point on which a load is placed, a fulcrum as a center of rotation of the holder when the load is placed on the force application point, and an operation point where the layer restricting body comes into contact with the developer carried by the developer carrier when the holder rotates on the fulcrum, the fulcrum is set on the tangent of the layer restricting body and developer carrier which passes the operation point. COPYRIGHT: (C)2004,JPO