公开(公告)号：JP2012058414A

公开(公告)日：2012-03-22

申请号：JP2010200191

申请日：2010-09-07

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI ,  KAGAWA TOSHIAKI

IPC: G03G15/20 ,  H05B3/20

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a fixing heater having stable heat generation characteristics, a fixing heater, a fixing device, and an image forming apparatus.SOLUTION: A manufacturing method of a fixing heater includes: providing an adhesive ceramic sheet 31 including ceramic particles 32 and an organic binder 33 on a substrate 21; providing a resistance heating element on the adhesive ceramic sheet 31; and calcining the adhesive ceramic sheet to thermally decompose the organic binder, thereby forming an adhesive ceramic layer with the resistance heating element adhered on the substrate.

Abstract translation: 要解决的问题：提供具有稳定发热特性的定影加热器的制造方法，定影加热器，定影装置和图像形成装置。 解决方案：定影加热器的制造方法包括：在基板21上提供包括陶瓷颗粒32和有机粘合剂33的粘合剂陶瓷片31; 在粘合剂陶瓷片31上设置电阻加热元件; 并煅烧粘合剂陶瓷片以热分解有机粘合剂，由此形成粘合陶瓷层，其中电阻加热元件粘附在基底上。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011209409A

公开(公告)日：2011-10-20

申请号：JP2010075138

申请日：2010-03-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI ,  YAMANA SHINJI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2039 ,  G03G2215/2029

Abstract: PROBLEM TO BE SOLVED: To provide a fixing device that attains excellent heat efficiency and low electricity consumption while preventing the occurrence of poor fixing, and further achieves the reduction in the driving torque of a fixing belt and reduction in damage given to the fixing belt.SOLUTION: The fixing device 15 is equipped with: a tension roller 33 applying a load on a fixing belt 32 from an inner circumferential side of the fixing belt 32. In the length of the fixing belt 32 between the fixing roller 30 and the tension roller 33, the length in the upstream side in a fixing belt 32 rotating direction with respect to the fixing nip area N, is longer than that downstream side thereof.

Abstract translation: 要解决的问题：提供一种在防止定影不良的情况下获得优异的热效率和低功耗的定影装置，并且进一步实现定影带的驱动转矩的降低和减少对定影带的损坏。 解决方案：定影装置15装备有：从定影带32的内周侧向定影带32施加载荷的张力辊33.在定影辊30和张紧辊之间的定影带32的长度 如图33所示，定影带32相对于定影辊隙区域N旋转的上游侧的长度比其下游侧长。

公开(公告)号：JP2010286743A

公开(公告)日：2010-12-24

申请号：JP2009141671

申请日：2009-06-12

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI

IPC: G03G15/20

Abstract: PROBLEM TO BE SOLVED: To provide a fixing device reducing drive torque in startup of rotation of a fixing belt and controlling wear deterioration of the fixing belt in the belt fixing type fixing device constructed so that the fixing belt is heated by using heat of a heating resistor generating heat by excitation.
SOLUTION: The fixing device 15 is the belt type fixing device including a fixing belt 25 wound between a fixing roller 15a and a heating means 21. An angular displacement-giving means 22 performs angular displacement of the heating means 21 heating the fixing belt 25 in such direction that one end part corresponding to the upstream rotational direction of the fixing belt 25 is brought close to the fixing roller 15a so that the fixing belt 25 is slackened in the startup of rotation.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种定影装置，在定影带的旋转启动时减少驱动转矩，并控制在固定式固定装置中的定影带的磨损劣化，使得定影带通过加热而被加热 的加热电阻器通过激励产生热量。 解决方案：定影装置15是包括卷绕在定影辊15a和加热装置21之间的定影带25的带式定影装置。角位移赋予装置22对加热装置21进行角位移， 带25沿着与定影带25的上游转动方向对应的一个端部靠近定影辊15a的方向，使得定影带25在旋转启动时松弛。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2008233193A

公开(公告)日：2008-10-02

申请号：JP2007068596

申请日：2007-03-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI

IPC: G03G21/00 ,  G03G21/10

Abstract: PROBLEM TO BE SOLVED: To firmly adhere a lubricant on an outer peripheral surface of a photoreceptor drum and to avoid enlargement of a cleaning device.
SOLUTION: A cleaning device 4 removes remaining toner after transfer of a toner image formed on an image carrier 3 and supplies a solid lubricant 41 to the image carrier, and includes: a cleaning blade 46 which has at least a part of a front end part thereof brought into contact with the outer peripheral surface of the image carrier; a brush roller 42 which is disposed upstream of the cleaning blade in a rotation direction of the image carrier so as to come into contact with the image carrier and is rotated to apply the solid lubricant to the image carrier; a guide member 43 which guides the solid lubricant so as to bring it into contact with the brush roller; a holding member 45 holding the solid lubricant; and a lubricant pressing member 47 which presses the solid lubricant to the brush roller from a rear side of the holding member. The cleaning blade is disposed so that an edge part 46a being not in contact with the image carrier, of the front end part of the cleaning blade is brought into contact with the brush roller.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了将润滑剂牢固地粘附在感光鼓的外周表面上，并且避免清洁装置的扩大。 解决方案：清洁装置4在转印形成在图像载体3上的调色剂图像之后去除剩余的调色剂，并将固体润滑剂41供给到图像载体，并且包括：清洁刮板46，其具有至少一部分 其前端部与图像载体的外周面接触; 刷辊42，其沿着图像载体的旋转方向设置在清洁刮板的上游，以与图像载体接触并旋转以将固体润滑剂施加到图像载体上; 引导构件43，其引导固体润滑剂以使其与刷辊接触; 保持固体润滑剂的保持构件45; 以及从保持构件的后侧将固体润滑剂压向刷辊的润滑剂按压部件47。 清洁刮板被布置成使得与清洁刮板的前端部分不与图像载体接触的边缘部分46a与刷辊接触。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008122638A

公开(公告)日：2008-05-29

申请号：JP2006306178

申请日：2006-11-13

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI

IPC: G03G21/00

Abstract: PROBLEM TO BE SOLVED: To improve photoreceptor drum cleaning performance by stably supplying lubricant.
SOLUTION: The lubricant supply device 40 to supply solid lubricant 41 to the outer surface of the rotating image carrier 3 has a brush roller 42 turning in one direction to apply solid lubricant to the image carrier, a guide 43 to bring the solid lubricant in contact with the brush roller, a holder 45 of the solid lubricant, and a lubricant pusher 47 to move the solid lubricant by pushing it from back of the holder to bring it in contact with the brush roller. As the solid lubricant is consumed, this device moves the guide from a position where the solid lubricant touches the brush almost horizontally, to a position where the solid lubricant touches the brush from the upper position almost vertically.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：通过稳定供应润滑剂来提高感光鼓清洗性能。 解决方案：向旋转载体3的外表面供给固体润滑剂41的润滑剂供应装置40具有在一个方向上转动以将固体润滑剂施加到图像载体的刷辊42，使固体 与刷辊接触的润滑剂，固体润滑剂的保持器45和润滑剂推动器47，以通过将固体润滑剂从保持器的后部推动以使其与刷辊接触来移动固体润滑剂。 当固体润滑剂被消耗时，该装置将导向件从固体润滑剂几乎水平地接触刷子的位置移动到固体润滑剂几乎垂直地从上部位置接触刷子的位置。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007212580A

公开(公告)日：2007-08-23

申请号：JP2006030200

申请日：2006-02-07

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMAJI HIROYUKI ,  KAMEI YUKIKAZU ,  TANAKA ATSUSHI

IPC: G03G15/16 ,  G03G15/20 ,  G03G15/24

CPC classification number: G03G15/1605 ,  G03G15/206 ,  G03G2215/1695

Abstract: PROBLEM TO BE SOLVED: To obtain a high-quality image by preventing a micro offset phenomenon in a stage for transferring and fixing toner on recording paper in a transfer fixing simultaneous system. SOLUTION: In the transfer fixing device, a transfer fixing roller 31 and a pressure member 32 are brought into press-contact with each other, and a transfer fixing area is formed between both members. Then, a toner image heated and melted while it is held by the transfer fixing roller 31 is transferred and fixed on the recording paper P entering the transfer fixing area in the transfer fixing area. In the transfer fixing device, the highest pressure area in the transfer fixing area is set to at least either an area at the end on a paper entering side of the recording paper P or an area at the end on a paper exiting side thereof. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了通过防止在转印固定同时系统中将记录纸上的调色剂转印和定影的阶段中的微小偏移现象获得高质量的图像。 解决方案：在转印定影装置中，转印定影辊31和压力构件32彼此压接，并且在两个构件之间形成转印固定区域。 然后，在由转印定影辊31保持的同时加热熔化的调色剂图像被转印并固定在进入转印固定区域中的转印固定区域的记录纸P上。 在转印固定装置中，转印固定区域中的最高压力区域被设定为在记录纸P的进纸侧的纸张的端部的区域中的至少一个区域或其出纸侧端部的区域中的至少一个。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006163166A

公开(公告)日：2006-06-22

申请号：JP2004356966

申请日：2004-12-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI

IPC: G03G15/02 ,  F16C13/00

Abstract: PROBLEM TO BE SOLVED: To provide a useful electrifying roller capable of obtaining a desired electrification potential with small apply voltage, and to provide an image forming apparatus using the electrifying roller.
SOLUTION: The electrifying roller has a laminated structure of an elastic layer which has elasticity and is formed on the outer peripheral surface of a conductive shaft body and a surface layer formed so as to cover the outer peripheral surface of the elastic layer, and the electrifying roller is used for electrophotographic image formation. Ruggedness is formed on the surface of the surface layer, and provided that the electric resistance value of the elastic layer is expressed by Re (Ω) and the electric resistance value when the surface layer is installed is expressed by Rr (Ω), the electrical resistance value Re of the elastic layer is larger than the electrical resistance value Rr when the surface layer is installed (Re>Rr) and the electric resistance value of the elastic layer is ≤4.0×10
7 Ω.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够以小的施加电压获得期望的带电电位的有用的带电辊，并且提供使用充电辊的图像形成装置。 解决方案：带电辊具有弹性层的层叠结构，该弹性层具有弹性，形成在导电轴体的外周面和形成为覆盖弹性层的外周面的表面层， 并且带电辊用于电子照相图像形成。 在表面层的表面上形成坚固性，并且如果弹性层的电阻值由Re（Ω）表示，并且当安装表面层时的电阻值由Rr（Ω）表示，则电气 弹性层的电阻值Re大于安装表面层时的电阻值Rr（Re> Rr），弹性层的电阻值为≤4.0×10 7 Ω。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006154565A

公开(公告)日：2006-06-15

申请号：JP2004347734

申请日：2004-11-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUKAI TAKASHI ,  SHINKAWA KOJI ,  SAKUWA TORU ,  TANAKA ATSUSHI

IPC: G03G15/02 ,  G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G5/10 ,  G03G5/14 ,  G03G15/01 ,  G03G15/08 ,  G03G21/00

Abstract: PROBLEM TO BE SOLVED: To provide a contact electrification system which will not cause leakage of photoreceptor, even when the maximum diameter of particles contained in the photoreceptor is larger than 1 μm. SOLUTION: This contact electrification system has a photo receptor, made by forming a photosensitive layer on the primer layer made on the front or rear surface of a conductive support, a charging roller disposed to turn keeping its surface, in contact with the photosensitive layer and having a conductive elastic layer between its shaft and the surface, and a power source for apply a dc charging voltage between the conductive support of the photoconductor and the shaft of the charging roller. The conductive elastic layer is made conductive, by dispersing an electron conductive material and an ion conductive material in the elastic material and has conductivity of the extent of not breaking down the insulation of the photoconductive layer with the current concentrated at the curved section, when a current flows between the charging roller and the photosensitive layer by the charging voltage. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：即使当感光体中包含的颗粒的最大直径大于1μm时，也提供不会导致感光体泄漏的接触带电系统。 解决方案：该接触带电系统具有通过在导电性支撑体的前表面或后表面上形成的底漆层上形成感光层而制成的光接收体，设置为保持其表面转动而与其接触的充电辊 感光层并且在其轴和表面之间具有导电弹性层，以及用于在光电导体的导电支撑件和充电辊的轴之间施加直流充电电压的电源。 导电弹性层通过将电子传导材料和离子导电材料分散在弹性材料中而具有导电性，并且具有在电流集中在弯曲部分时不破坏光导电层绝缘的程度的导电性， 电流通过充电电压在充电辊和感光层之间流动。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006030565A

公开(公告)日：2006-02-02

申请号：JP2004208927

申请日：2004-07-15

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： SHINKAWA KOJI ,  MUKAI TAKASHI ,  SAKUWA TORU ,  TANAKA ATSUSHI

IPC: G03G15/02 ,  F16C13/00

Abstract: PROBLEM TO BE SOLVED: To recycle a used charging member as a transfer member by an extremely simple work.
SOLUTION: A charging roller 31f is structured such that the circumference of a core metal 31f1 is covered with a conductive rubber layer 31f2, which is a high resistance layer, and the circumference of the conductive rubber layer 31f2 is covered with a tubular conductive layer 31f3, which is a low resistance layer. The internal face of the tubular conductive layer 31f3 is firmly bonded to the surface of the conductive rubber layer 31f2 so that they are integrated. The length of the tubular conductive layer 31f3 from one end to the other is larger than the length of the conductive rubber layer 31f2 from one end to the other. The end parts f3A of the tubular conductive layer 31f3, which extend beyond the corresponding ends of the conductive rubber layer 31f2, are radially shrunk and joined to the core metal 31f1 with a conductive adhesive. Each of the end parts f3A of the tubular conductive layer 31f3 has a prescribed length of notch f3A1 in the direction of the axis of the core metal 31f1.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过非常简单的工作回收作为转印部件的使用过的充电部件。 解决方案：充电辊31f被构造成使得芯金属31f1的周长被作为高电阻层的导电橡胶层31f2覆盖，并且导电橡胶层31f2的周长被管状 导电层31f3，其为低电阻层。 管状导电层31f3的内表面牢固地结合到导电橡胶层31f2的表面，使得它们被一体化。 管状导电层31f3从一端到另一端的长度大于导电橡胶层31f2从一端到另一端的长度。 延伸超过导电橡胶层31f2的相应端的管状导电层31f3的端部f3A通过导电粘合剂径向收缩并与芯金属31f1接合。 管状导电层31f3的端部f3A中的每一个在芯金属31f1的轴线方向上具有规定长度的切口f3A1。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005221969A

公开(公告)日：2005-08-18

申请号：JP2004032229

申请日：2004-02-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TANAKA ATSUSHI

IPC: G03G15/02 ,  F16C13/00

Abstract: PROBLEM TO BE SOLVED: To solve the following problems; when a base resin of a semiconductor elastic material layer of an electrostatic charging roller has reactivity like that of a thermosetting resin, there is a restriction in the choice of dispersants and therefore it is sometimes difficult to obtain the electrostatic charging roller of a uniform resistance value and also, the influence of the dispersibility of the dispersant is so significant that the control of the resistance value is difficult.
SOLUTION: The electrostatic charging roller comprises two layers constituted by coating the outer periphery of a conductive shaft body with an elastic layer and further coating the surface layer, wherein the roller is so constituted as to make the resistances of the elastic layer higer than that of the surface layer and so that the surface roughness of Rz ≥6.4 μm is imparted to the surface layer.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：解决以下问题： 当静电充电辊的半导体弹性材料层的基础树脂具有类似热固性树脂的反应性时，分散剂的选择存在限制，因此有时难以获得具有均匀电阻值的静电充电辊 并且分散剂的分散性的影响也非常显着，使得电阻值的控制变得困难。 解决方案：静电充电辊包括通过用导电轴体的外周涂覆弹性层和进一步涂覆表面层而构成的两层，其中辊被构造成使得弹性层的电阻更高 表面层的Rz≥6.4μm的表面粗糙度赋予表面层。 版权所有（C）2005，JPO＆NCIPI