专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2009063991A Developing apparatus and image forming apparatus 有权
标题翻译：开发设备和图像形成设备
公开(公告)号：JP2009063991A
公开(公告)日：2009-03-26
申请号：JP2008090276
申请日：2008-03-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TSUDA KIYONORI , MIYAMOTO SATOSHI , KITA EMI , UNO MUGIJIROU , MATSUMOTO KEIKO , KOEDA MAIKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing apparatus for changing a height of a developer accumulated in the vicinity of a developer discharge port in response to the quantity of the developer within the apparatus, discharging the increased quantity of the developer when the quantity of the developer is increased within the apparatus, simplifying a constitution, and properly exchanging the developer within the apparatus, and an image forming apparatus with the developing apparatus. SOLUTION: A supply downstream end wall surface 80 is provided so as to accumulate the developer in the vicinity of the developer discharge port 94 within a supply/transfer path 9. The developer discharge port 94 is provided so as to pass the developer attaining the height of the developer discharge port 94 among the accumulated developer T accumulated on the supply downstream end wall surface 80. An opening width W as a horizontal width of the developer discharge port 94 is configured so as to prevent the developer from attaining a discharge port upstream end 94f even if the developer attains a discharge port downstream end 94e among both ends of the developer discharge port 94 in the horizontal direction when the height of the accumulated developer T is maximized. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种显影装置，用于响应于装置内的显影剂的量而改变积聚在显影剂排出口附近的显影剂的高度，当显影剂的量显影剂的数量在设备内增加，简化结构，并且正确地更换设备内的显影剂，以及具有显影设备的图像形成设备。解决方案：供给下游端壁表面80设置成在供给/传送路径9内将显影剂积聚在显影剂排出口94附近。显影剂排出口94设置成使显影剂通过显影剂达到累积在供给下游端壁表面80上的累积的显影剂T中的显影剂排出口94的高度。作为显影剂排出口94的水平宽度的开口宽度W被构造成防止显影剂达到放电即使显影剂排出口94的两端中的显影剂在水平方向上达到排出口下游端94e，当积聚的显影剂T的高度最大时，也是这样。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008185804A Developer loading method, loaded developer accommodating container, developer replenishment device, image forming apparatus, developer replenishment method, and method for producing loaded developer accommodating container 有权
标题翻译：开发者装载方法，装载开发者存储容器，开发者补偿装置，图像形成装置，开发者补偿方法和用于生产负载开发者存储容器的方法
公开(公告)号：JP2008185804A
公开(公告)日：2008-08-14
申请号：JP2007019395
申请日：2007-01-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUMOTO KEIKO , KITA EMI , UNO MUGIJIROU , MIYAMOTO SATOSHI , TERAI JUNICHI , KOEDA MAIKO
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G15/0874 , G03G15/0879 , G03G15/0893 , G03G15/0894 , G03G2215/0607 , G03G2215/0682
摘要： PROBLEM TO BE SOLVED: To provide a method for loading a replenishment developer into a developer accommodating container such that when the replenishment of the replenishment developer inside the loaded developer accommodating container is started, the developer composed of a toner and a carrier, or a toner is discharged from a developer discharge port of the developer accommodating container. SOLUTION: When a premix toner Tp that is a replenishment developer composed of a replenishment toner To and a replenishment carrier Ca is loaded into a toner bottle 120 serving as the developer accommodating container, the replenishment carrier Ca is loaded and then the replenishment toner To is loaded. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种将补充显影剂装载到显影剂容纳容器中的方法，使得当充满显影剂容纳容器内的补充显影剂的补充开始时，由调色剂和载体组成的显影剂，或者调色剂从显影剂容纳容器的显影剂排出口排出。解决方案：当作为补充调色剂To和补充载体Ca组成的补充显影剂的预混料调色剂Tp被装载到用作显影剂容纳容器的调色剂瓶120中时，补充载体Ca被装载，然后补充墨粉装入。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006139014A Image forming apparatus and process cartridge 审中-公开
标题翻译：图像形成装置和处理盒
公开(公告)号：JP2006139014A
公开(公告)日：2006-06-01
申请号：JP2004327816
申请日：2004-11-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAMOTO SATOSHI , YASUDA OSAMU
IPC分类号： G03G9/113 , G03G9/08 , G03G9/087 , G03G15/06 , G03G15/08
CPC分类号： G03G15/0907 , G03G9/0819 , G03G2215/0609
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and a process cartridge in which a failure such as toner flying-off does not occur, not only in the initial stages but even with the lapse of time, so that a prolonged service life of a two-component developer is achieved. SOLUTION: A gap between an image carrier 21 and a developer carrier 23a is set to 0.3±0.1 mm. A carrier having a resin coating layer on a core material surface is used as a carrier C. The resin coating layer contains conductive particles formed by disposing a conductive coating layer comprising a tin dioxide layer and an indium oxide layer on a base particle surface so that an oil absorption value attains to 10-300 ml/100 g. Toner having a binder resin containing a hybrid resin comprising a vinyl polymer and a polyester polymer is used. The content of the hybrid resin to the content of a release agent is adjusted to a range of 0.5-3. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种图像形成装置和处理盒，其中不仅在初始阶段，即使随着时间的流逝也不会发生诸如调色剂飞落的故障，使得延长实现双组分显影剂的使用寿命。解决方案：图像载体21和显影剂载体23a之间的间隙设定为0.3±0.1mm。使用在芯材表面上具有树脂涂层的载体作为载体C.树脂被覆层包含通过在基体颗粒表面上设置包含二氧化锡层和氧化铟层的导电性涂层而形成的导电性粒子，使得油吸收值达到10-300ml / 100g。使用具有包含乙烯基聚合物和聚酯聚合物的混合树脂的粘合剂树脂的调色剂。将混合树脂与脱模剂的含量的比例调整为0.5〜3的范围。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2004053953A Electrophotographic toner, method for manufacturing electrophotographic toner, and image forming method 审中-公开
公开(公告)号：JP2004053953A
公开(公告)日：2004-02-19
申请号：JP2002211677
申请日：2002-07-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAMOTO SATOSHI , UEDA HIDEYUKI , KURODA NOBORU
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09 , G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner which does not cause greasing by suppressing toner scattering, and a method for manufacturing the toner and further, an image forming method. SOLUTION: The electrophotographic toner satisfies the relation of a Formula (1) 0.00≤Y-X≤0.50 between the toner weight ratio: X% of ≤15 μC/g in the electrostatic charge quantity in a developer prepared by agitating and mixing the toner with a carrier for 30 seconds at a toner concentration 7% at and under an ordinary temperature and ordinary humidity and a toner weight ratio: Y% of ≤15 μC/g in the electrostatic charge quantity in the developer prepared by further agitating and mixing the developer of the toner concentration 7%, by adding the toner until the toner concentration attains 1% and further by agitating and mixing the toner for 30 seconds. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2008268748A Developer supply device and image forming apparatus 审中-公开
标题翻译：开发商供应设备和图像形成设备
公开(公告)号：JP2008268748A
公开(公告)日：2008-11-06
申请号：JP2007114540
申请日：2007-04-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOEDA MAIKO , KITA EMI , KATO KOICHI , MIYAMOTO SATOSHI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developer supply device capable of highly accurately supplying developer having a constant carrier concentration to a developing device, and to provide an image forming apparatus having this device. SOLUTION: Each of stir vanes 1 serving as developer damming means is attached to the rotating shaft 85c of a second upper screw 85 between the screw pitches of the rotary vanes 85b. The flow of developer conveyed by a first upper screw 84 is temporarily dammed by the stir vanes 1 disposed on the rotating shaft 85c of the second upper screw 85. Further, some of the developer is vertically thrust upward. Accordingly, a toner and a carrier are stirred, uniformly mixed, are frictionally charged. Accordingly, the toner is uniformly disposed on the surface of each of carrier particles at a micro-level by an electrostatic attraction force. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够高度精确地供应具有恒定载流子浓度的显影剂给显影装置的显影剂供应装置，并提供具有该装置的图像形成装置。解决方案：用作显影剂阻挡装置的每个搅拌叶片1都附接到旋转叶片85b的螺距之间的第二上部螺杆85的旋转轴85c。由第一上部螺钉84输送的显影剂的流动被设置在第二上部螺钉85的旋转轴85c上的搅拌叶片1暂时阻挡。此外，一些显影剂垂直地向上推。因此，搅拌，均匀混合的调色剂和载体被摩擦带电。因此，调色剂通过静电吸引力以微观级均匀地设置在每个载体颗粒的表面上。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2006126360A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006126360A
公开(公告)日：2006-05-18
申请号：JP2004312768
申请日：2004-10-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YASUDA OSAMU , MIYAMOTO SATOSHI
IPC分类号： G03G15/06 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of reducing the occurrence of white spotty image in an output image. SOLUTION: Regarding the image forming apparatus for forming a toner image by sticking toner T carried by a developer carrier 23a to an electrostatic latent image formed on the image carrier 2, the toner T is formed so that 40 or less toner particles having a particle size of ≥25 μm may exit per g in weight. Besides, provided that developing potential is expressed by X (V) and toner concentration in two-component developer G is expressed by Y (weight%), the apparatus is controlled so as to establish a relation of Y≥0.058X-14.184. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够减少输出图像中白斑图像的发生的图像形成装置。解决方案：关于通过将由显影剂载体23a承载的调色剂T粘附到形成在图像载体2上的静电潜像来形成调色剂图像的图像形成装置，调色剂T被形成为使得具有40个或更少的调色剂颗粒具有 ≥25μm的粒度可以以g计重。此外，只要显影电位用X（V）表示，双组分显影剂G中的调色剂浓度用Y（重量％）表示，则控制该设备以建立Y≥0.058X-14.184的关系。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005266385A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2005266385A
公开(公告)日：2005-09-29
申请号：JP2004079528
申请日：2004-03-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAMOTO SATOSHI
IPC分类号： G03G9/10 , G03G9/08 , G03G15/06 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that can secure high developing capability even when a carrier of small particle size and a toner of small particle size are used and obtain stable image quality by suppressing carrier sticking. SOLUTION: The image forming apparatus which uses a two-component developer consisting of a toner and a magnetic carrier is characterized in that: the magnetic carrier contains ≥75.0 wt.% particles of ≥76 emu/g in magnetic moment in a magnetic field of 1 KOe, 25 to 45 μm in weight mean particle size, and ≤4 μm in particle size, ≤1.0 wt.% particles of ≥76.0 wt.% and ≥62μm in particle size, and ≤7.0 wt.% particles of ≤22 μm in particle size; the frequency f of an AC component applied by a bias applying means and the peripheral speed (v) of a developing sleeve 54 are so related that f/v≥15 (cycle/mm); and a developer carrying amount per unit area on the developing sleeve 54 is 30 to 80 mg/cm 2 . COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供即使使用小粒度的载体和小粒径的调色剂也能够确保高显影能力的图像形成装置，并通过抑制载体粘附而获得稳定的图像质量。解决方案：使用由调色剂和磁性载体组成的双组分显影剂的图像形成装置的特征在于：磁性载体在磁矩中含有≥75.0重量％的≥75emu/ g的颗粒 1KOe的磁场，平均粒度为25〜45μm，粒径为≤4μm，≤1.0重量％的粒径≥76.0重量％，≥62μm的粒子，≤7.0重量％的粒子 ≤22μm的粒径; 由偏置施加装置施加的交流分量的频率f和显影套筒54的圆周速度（v）与f /v≥15（周期/ mm）有关; 并且显影套筒54上每单位面积承载量的显影剂为30〜80mg / cm 2。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005091832A Development apparatus and image forming apparatus using the same 审中-公开
标题翻译：使用它的开发设备和图像形成装置
公开(公告)号：JP2005091832A
公开(公告)日：2005-04-07
申请号：JP2003325863
申请日：2003-09-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAMOTO SATOSHI
IPC分类号： G03G9/08 , G03G9/10 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a development apparatus for obtaining a stable image quality over a long period by suppressing an image-density irregularity and a degradation in image density regardless of a use state on an image area and multi-sheet continuous output, and also to provide an image forming apparatus using it. SOLUTION: In the development apparatus using a two-component developer consisting of toner and a magnetic carrier, an electrification amount of the developer 3 is 30 (-μC/g) to 60 (-μC/g), a ratio (Dv/Dn) of a weight average particle diameter Dv and a number average particle diameter Dn of the toner is 1.20 or less, a relation of a peripheral speed Vs of a development sleeve 54 and a peripheral speed Vk of agitating members 55 and 56 is Vk>Vs, 100 (mm/s) 2 ) to 80 (mg/cm 2 ). COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决方案：提供一种用于通过抑制图像浓度不均匀性和图像浓度劣化来获得长时间的稳定图像质量的显影装置，而不管图像区域和多张连续图像上的使用状态如何输出，并且还提供使用它的图像形成装置。解决方案：在使用由调色剂和磁性载体组成的双组分显影剂的显影装置中，显影剂3的带电量为30（-μC/ g）至60（-μC/ g），比例 Dv / Dn）和调色剂的数均粒径Dn为1.20以下，显影套筒54的圆周速度Vs与搅拌部件55,56的圆周速度Vk的关系为 Vk> Vs，100（mm / s））至80（mg / cm 2 SP）。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2004113839A Fluidized bed type grinding classifier 有权
公开(公告)号：JP2004113839A
公开(公告)日：2004-04-15
申请号：JP2002276526
申请日：2002-09-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MAKINO NOBUYASU , MURAKAMI FUMITOSHI , TAKAHASHI MUTSUMI , TANAKA TETSUYA , SANTO HIDEYUKI , MIYAMOTO SATOSHI
IPC分类号： G03G9/087 , B02C19/06
摘要： PROBLEM TO BE SOLVED: To provide a new fluidized bed type grinding classifier which has a simple structure, versatility and enhanced capability, especially reduces the whirling-up of a material to be ground in a classification chamber even if a large amount of the material to be ground is charged, prevents the solid-gas ratio around a classification rotor arranged to an upper part from rising abnormally to consequently eliminate not only the lowering of classifying accuracy but also over-grinding or the mixing of a coarse powder with a ground rising product and causes no lowering of a production capacity. SOLUTION: This fluidized bed type grinding classifier (counter jet mill type) is constituted so that a grinding position regulating body, which can regulate the distance between the bottom part of a grinder and a grinding nozzle is mounted to regulate the supply amount of the material to be ground in the periphery of the grinding nozzle. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2009031596A Developing apparatus and image forming apparatus 有权
标题翻译：开发设备和图像形成设备
公开(公告)号：JP2009031596A
公开(公告)日：2009-02-12
申请号：JP2007196470
申请日：2007-07-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UNO MUGIJIROU , MIYAMOTO SATOSHI , MATSUMOTO KEIKO , TSUDA KIYONORI , KITA EMI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing apparatus and an image forming apparatus which can make the developing apparatus discharge developer by spring-up of a supply spring and replacing the developer in the apparatus, in a state of maintaining the amount of developer in the apparatus to be within a fixed range, even if the rotational speed of the supply screw is changed. SOLUTION: The developing apparatus 4 has a control board 88, which is a screw rotating speed control means for controlling multiple kinds of setting of the rotating speed of the supply screw 8, at a copying machine 500 serving as the image forming apparatus. The control board 88 controls a solenoid 98 for adjusting the height of a discharge opening member 135, having a developer discharge port 94 that serves as a discharge opening part. The height of the developer discharge port 94 is thereby adjusted, according to the rotating speed of the supply screw 8. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种显影装置和图像形成装置，其能够使显影装置通过弹簧升高供给弹簧并且在装置中更换显影剂来排出显影剂，在保持量显影剂在设备内处于固定范围内，即使供应螺杆的旋转速度改变。解决方案：显影装置4具有控制板88，该控制板是用作在图像形成装置的复印机500处控制供给螺杆8的转速的多种设定的螺杆转速控制装置。控制板88控制用于调节排出口构件135的高度的螺线管98，具有用作排出口部的显影剂排出口94。显影剂排出口94的高度根据供给螺杆8的旋转速度进行调节。（C）2009年，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式