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

JP2007011135A Process cartridge, image forming apparatus and image forming method 审中-公开
标题翻译：过程盒，图像形成装置和图像形成方法
公开(公告)号：JP2007011135A
公开(公告)日：2007-01-18
申请号：JP2005193941
申请日：2005-07-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI HIROAKI , SAKON HIROTA , UMEMURA KAZUHIKO , UCHIUMI TOMOKO
IPC分类号： G03G21/10 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a process cartridge which suppresses wax filming on an image bearing member and can ensure proper image characteristics, and to provide an image forming apparatus and an image forming method. SOLUTION: The image forming apparatus has at least an image carrier; a developing device for forming a toner image on the image-carrier with a toner including at least wax and a binder resin; and a cleaning device for removing the toner remaining on the surface of the image carrier, wherein the cleaning device has a cleaning blade, which abuts against the image bearing member in a direction reverse to the rotating direction of the image carrier. At the contact part of the image carrier member, the angle between a section of the blade in the axial direction and the surface of the image carrier is in a range of 90-120° as an angle with respect to the rotation upward direction of the image carrier, the cleaning blade has impact resilience of ≥60% at 23°C, and the contact pressure of the blade to the image bearing member is ≤0.2 N/cm. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种抑制图像承载部件上的蜡成像并能够确保正确的图像特性的处理盒，并且提供图像形成装置和图像形成方法。解决方案：图像形成装置至少具有图像载体; 一种用至少包含蜡和粘合剂树脂的调色剂在图像载体上形成调色剂图像的显影装置; 以及用于去除残留在图像载体表面上的调色剂的清洁装置，其中清洁装置具有清洁刮板，该清洁刮板沿与图像载体的旋转方向相反的方向抵靠图像承载部件。在图像承载构件的接触部分，叶片在轴向方向上的一部分与图像载体的表面之间的角度在90-120°的范围内，相对于图像载体，清洁刮板在23℃下具有≥60％的回弹性，并且叶片与图像承载部件的接触压力≤0.2N/ cm。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007003694A Image forming method and image forming apparatus 审中-公开
标题翻译：图像形成方法和图像形成装置
公开(公告)号：JP2007003694A
公开(公告)日：2007-01-11
申请号：JP2005182073
申请日：2005-06-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UCHIUMI TOMOKO , SAKON HIROTA , UMEMURA KAZUHIKO , TAKAHASHI HIROAKI
IPC分类号： G03G21/10 , G03G5/147 , G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner which satisfies both transferability and cleanability, exhibits good fixing property and causes no degradation of image quality even after printing on many sheets, a toner which improves the cleanability of the above toner and can reduce the abrasion loss of a cleaning blade, a cleaning blade and an excellent combination of these. SOLUTION: In an image forming method of the invention, the cleaning blade has an impact resilience at 23°C of 60-90%, a contact pressure to a photoreceptor of ≤0.20 N/cm and a cleaning angle of ≥80°, an external additive of the toner has a number average particle diameter of primary particles of 20-100 nm and includes particles having particle diameters of 10-20 nm and 200-300 nm, the toner contains a colorant and a resin and comprises particles formed by dispersing droplets of an organic solvent in which a prepolymer-containing toner composition has been dissolved in an aqueous medium and inducing an extension reaction and/or a crosslinking reaction, there is an inflection point in a test force-displacement graph of a minute compression testing machine, and the toner has a circularity of ≥0.95 when strength is 0.100-1.00 kg/mm 2 . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供既满足转印性又可清洁性的调色剂，即使在许多纸张上印刷之后，显示出良好的定影性，也不会降低图像质量，改善上述调色剂的可清洁性并且可以降低的调色剂清洁刮板，清洁刮板的磨损损失以及这些的优异组合。解决方案：在本发明的图像形成方法中，清洁刮板在23℃下的回弹率为60-90％，感光体的接触压力为≤0.20N/ cm，清洁角度≥80 °，调色剂的外部添加剂具有20-100nm的一次粒子的数均粒径，并且包括粒径为10-20nm和200-300nm的颗粒，调色剂含有着色剂和树脂，并且包含颗粒通过将其中含有预聚物的调色剂组合物的有机溶剂的液滴分散在水性介质中并引起延伸反应和/或交联反应而形成，在一分钟的试验力位移图中存在拐点压缩试验机，当强度为0.100-1.00kg / mm 2 时，调色剂的圆度为≥0.95。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006259310A Image forming method and image forming apparatus 审中-公开
标题翻译：图像形成方法和图像形成装置
公开(公告)号：JP2006259310A
公开(公告)日：2006-09-28
申请号：JP2005077359
申请日：2005-03-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI HIROAKI , SAKON HIROTA , UMEMURA KAZUHIKO , UCHIUMI TOMOKO
IPC分类号： G03G21/10 , G03G5/147 , G03G9/08 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming method which assures satisfactory cleanability, has excellent wear resistance to a photoreceptor, is reduced in photoreceptor deterioration, such as filming, and is capable of performing stable and excellent image formation, and an image forming apparatus. SOLUTION: The image forming method includes a process of developing an electrostatic latent image formed on the photoreceptor 1 with a toner containing a wax, a process of transferring the toner image developed by the developing process to a transfer material, then a process of cleaning the toner remaining on the photoreceptor 1 by a cleaning blade 61 which is a rubber elastic body, and recycles the toner by conveying the toner recovered by the cleaning to a developing section, in which the impact resilience at 23°C of the rubber elastic body is regulated to ≤60% and the abutting pressure of the cleaning blade 61 on the photoreceptor 1 is specified to ≤0.20 N/cm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供确保令人满意的清洁性，对感光体具有优异的耐磨性的图像形成方法，降低感光体劣化，例如成膜，并且能够进行稳定和优异的图像形成，并且图像形成装置。解决方案：图像形成方法包括使用含有蜡的调色剂在感光体1上形成静电潜像的过程，将通过显影处理显影的调色剂图像转印到转印材料的方法，然后进行处理通过作为橡胶弹性体的清洁刮板61清洁残留在感光体1上的调色剂，并通过将通过清洗回收的调色剂输送到显影部分来回收调色剂，其中橡胶的23℃下的回弹性将弹性体调节至≤60％，并将感光体1上的清洁刮板61的抵接压力规定为≤0.20N/ cm。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006085067A Toner, and image forming apparatus and process cartridge using the same 有权
标题翻译：调色剂和图像形成装置和使用它的处理盒
公开(公告)号：JP2006085067A
公开(公告)日：2006-03-30
申请号：JP2004272350
申请日：2004-09-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HASEGAWA HISAMI , AOKI MITSUO , SHU HIYO , MASUDA MINORU , UCHIUMI TOMOKO
IPC分类号： G03G9/09 , G03G9/08 , G03G9/087 , G03G15/08
CPC分类号： G03G9/00 , G03G9/0806 , G03G9/0821 , G03G9/0823 , G03G9/08782 , G03G9/09708 , G03G9/09733 , G03G15/0855 , G03G15/0865 , G03G15/0879
摘要： PROBLEM TO BE SOLVED: To provide a toner which can be smoothly replenished with a toner-replenishing device using a powder pump, even if the toner contains a release agent, and to provide an image forming apparatus. SOLUTION: The toner is replenished by a toner-replenishing device 120 including a powder pump 140 which automatically supplies the toner so as to develop electrostatic latent images on a photoreceptor; a toner-housing vessel, disposed linked with the pumping means; and an air pump for fluidizing the toner housed in the toner-housing vessel, and the toner comprises at least a binder resin, a chromatic colorant and a release agent and has a coefficient of kinetic friction of a toner surface within a range of 0.15-0.35. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使调色剂含有脱模剂，也可以提供一种能够通过使用粉末泵的调色剂补充装置平滑地补充的调色剂，并提供图像形成装置。
解决方案：调色剂由包括粉末泵140的调色剂补充装置120补充，粉末泵140自动供应调色剂以在感光体上显影静电潜像; 与所述泵送装置连接的调色剂容纳容器; 以及用于使容纳在调色剂容纳容器中的调色剂流化的空气泵，并且调色剂至少包含粘合剂树脂，有色着色剂和脱模剂，并且调色剂表面的动摩擦系数在0.15〜 0.35。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2006023394A Developer for electrostatic image development, image forming apparatus, process cartridge using the same and image forming method 审中-公开
标题翻译：用于静电图像开发的开发者，图像形成装置，使用其的处理盒和图像形成方法
公开(公告)号：JP2006023394A
公开(公告)日：2006-01-26
申请号：JP2004199691
申请日：2004-07-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKATA KOICHI , MOCHIZUKI MASARU , UCHINOKURA OSAMU , NAKAJIMA HISASHI , KOBAN AKIHIRO , SUGIURA HIDEKI , ASAHINA YASUO , ICHIKAWA TOMOYUKI , NAKAYAMA SHINYA , UCHIUMI TOMOKO , IWAMOTO YASUTAKA
IPC分类号： G03G9/087 , G03G9/08 , G03G9/097 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a developer for electrostatic image development including a toner capable of preventing image stain due to fogging and toner scattering, and to provide an image forming apparatus and an image forming method. SOLUTION: In the two-component developer for electrostatic image development including the toner which includes at least a binder resin and a colorant, wherein at least 50-100 wt.% of the binder resin is a polyester resin including at least partly a modified polyester, and which is obtained by granulation in an aqueous medium, and a carrier comprising magnetic particles, when an initial developer is prepared by stirring and mixing the toner and carrier at a toner concentration of 7% with a magnetic roll for 15 s and a charge amount Q (fc) and a particle diameter D (μm) of the toner are measured with an E-Spart analyzer, a number proportion of particles satisfying Q/D>0 in Q/D distribution is ≤3% and that of particles satisfying Q/D>-1 is ≤10%. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于静电图像显影的显影剂，包括能够防止由于起雾和调色剂散射引起的图像污染的调色剂，并提供图像形成装置和图像形成方法。解决方案：在用于静电图像显影的双组分显影剂中，包括至少包含粘合剂树脂和着色剂的调色剂，其中至少50-100重量％的粘合剂树脂是包含至少部分改性聚酯，并且通过在水性介质中造粒和包含磁性颗粒的载体获得，当通过用调色剂浓度为7％的调色剂和载体以磁性辊搅拌和混合15秒来制备初始显色剂时，并用E-Spart分析仪测量调色剂的电荷量Q（fc）和粒径D（μm），在Q / D分布中满足Q / D> 0的颗粒的数量比例≤3％，并且满足Q / D> -1的颗粒为≤10％。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005292175A Electrostatic latent image developing carrier and developer using same 审中-公开
标题翻译：静电图像发展载体和使用它的开发商
公开(公告)号：JP2005292175A
公开(公告)日：2005-10-20
申请号：JP2004102733
申请日：2004-03-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOBAN AKIHIRO , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , SUGIURA HIDEKI , UCHINOKURA OSAMU , ASAHINA YASUO , ICHIKAWA TOMOYUKI , NAKAYAMA SHINYA , NAKAJIMA HISASHI , SAKATA KOICHI , UCHIUMI TOMOKO
IPC分类号： G03G9/113 , G03G9/09 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a carrier having excellent durability of a coating layer and stable charging property without depending on the use environment, and to provide a developer preventing changes in the coating layer with time and having excellent spent preventing property and stable charging performance for a long time.
SOLUTION: The electrostatic latent image developing carrier has a resin coating layer on the surface of fine particles having magnetism, wherein the resin coating layer contains at least a compound expressed by general formula (1) and/or its condensation product. In formula (1), each of R
1 and R
2 represents a 1-4C alkyl group or a phenyl group; each of R
3 and R
5 represents a 1-4C alkyl group; R
4 represents a 1-2C alkylene group; and n and m represent positive integers.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的涂层耐久性和稳定的充电性能的载体，而不依赖于使用环境，并提供一种防止涂层随时间变化并具有优异的防止预防性能的显影剂，稳定的充电性能很长时间。静电潜像显影载体在具有磁性的细颗粒表面上具有树脂涂层，其中树脂涂层至少含有由通式（1）表示的化合物和/或其缩合产物。在式（1）中，R SB 1和R SB 2各自表示1-4C烷基或苯基; R SB 3和R SB 5中的每一个代表1-4C烷基; R SB 4表示1-2C亚烷基; n和m表示正整数。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005148719A Electrostatic charge image developing toner, developer, image forming method and image forming apparatus 有权
标题翻译：静电充电图像开发墨盒，开发者，图像形成方法和图像形成装置
公开(公告)号：JP2005148719A
公开(公告)日：2005-06-09
申请号：JP2004298612
申请日：2004-10-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI , ASAHINA YASUO , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , KOBAN AKIHIRO , UCHINOKURA OSAMU , ICHIKAWA TOMOYUKI , NAKAYAMA SHINYA , UCHIUMI TOMOKO , SAKATA KOICHI , NAKAJIMA HISASHI , IWATSUKI HITOSHI
IPC分类号： G03G9/087 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a toner which is adapted to a low temperature fixing system, has a sufficient fixing temperature range and does not contaminate a fixing device or an image even after printing on several ten thousand sheets. SOLUTION: In the electrostatic charge image developing toner including at least a colorant and a resin, an HFIP (hexafluoroisopropanol)-soluble component of the toner satisfies the relationships: 2,000≤Mn≤7,000 and 1.5≤Mn/Mw≤10, wherein Mn is number average molecular weight and Mw is weight average molecular weight, and a component whose molecular weight is ≥100,000 in the HFIP (hexafluoroisopropanol)-soluble component of the toner occupies 0.5-18%. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供适用于低温定影系统的调色剂，具有足够的定影温度范围，即使在数万张印刷之后也不会污染定影装置或图像。解决方案：在至少包含着色剂和树脂的静电电荷显影调色剂中，调色剂的HFIP（六氟异丙醇）可溶成分满足关系：2,000≤Mn≤7,000和1.5≤Mn/Mw≤10，其中Mn是数均分子量，Mw是重均分子量，在调色剂的HFIP（六氟异丙醇）可溶成分中的分子量≥100,000的成分占0.5〜18％。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005055533A Toner, method for manufacturing the same, developer, toner-containing vessel, process cartridge, image forming apparatus and image forming method 有权
标题翻译：调色剂，其制造方法，开发商，含有容器的容器，工艺盒，图像形成装置和图像形成方法
公开(公告)号：JP2005055533A
公开(公告)日：2005-03-03
申请号：JP2003206429
申请日：2003-08-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ICHIKAWA TOMOYUKI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , SUGIURA HIDEKI , UMEMURA KAZUHIKO , ASAHINA YASUO , NAKAJIMA HISASHI , NAKAYAMA SHINYA , SAKATA KOICHI , UCHIUMI TOMOKO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a toner or the like having excellent chargeability and charge stability, causing neither surface stain nor filming, having good anti-offset properties and excellent cleanability, and capable of forming a high sharpness and high quality image of high image density. SOLUTION: The toner is obtained in a particle shape while a toner binder is being formed in an aqueous medium by reacting an active hydrogen group-containing compound with a polymer capable of reacting with the active hydrogen group-containing compound and has a fluorine atom content of 2 to 30% by the number of atoms. In a preferred embodiment, a fluorine-containing compound contained in the toner is a fluorine-containing quaternary ammonium salt compound, and the fluorine-containing quaternary ammonium salt compound is represented by structural formula (1). COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的带电性和电荷稳定性的调色剂等，既不会产生表面污渍也不会成膜，具有良好的抗污损性和优异的可清洁性，并且能够形成高清晰度和高质量的图像的高图像密度。解决方案：通过使含活性氢基团的化合物与能够与含活性氢基团的化合物反应的聚合物反应，在水性介质中形成调色剂粘合剂，从而得到调色剂，并具有氟原子含量为原子数的2〜30％。在优选的实施方案中，调色剂中所含的含氟化合物是含氟季铵盐化合物，含氟季铵盐化合物由结构式（1）表示。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005017582A Electrostatic charge image developing toner, developer, method for forming image, image forming apparatus and process cartridge 有权
标题翻译：静电充电图像开发调色剂，开发者，形成图像的方法，图像形成装置和方法盒
公开(公告)号：JP2005017582A
公开(公告)日：2005-01-20
申请号：JP2003180732
申请日：2003-06-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , ASAHINA YASUO , KOBAN AKIHIRO , NAKAYAMA SHINYA , ICHIKAWA TOMOYUKI , SAKATA KOICHI , UCHIUMI TOMOKO , NAKAJIMA HISASHI
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/0827 , G03G9/0806 , G03G9/0819 , G03G9/08764 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide toner characterized in that: the deposition amount of the toner per unit area on a paper sheet or the like can be reduced while keeping developing property, transfer property and fixing property; picture quality with sufficient image density can be obtained; the toner has sufficiently high electrification performance and favorable rising property for electrification and hardly causes toner spent in a carrier or the like even after images in several ten thousands of sheets are produced; high electrification property and fluidity can be maintained and picture quality with sufficient image density and little contamination on the base (fog) can be obtained; the toner responds to a low temperature fixing system while keeping cleaning property; the toner has favorable offset resistance and causes no contamination in the fixing apparatus or in an image, and to provide a developer, image forming apparatus and a method for forming an image. SOLUTION: The toner containing at least a coloring agent and a binder resin is an electrostatic charge image developing toner having one or more pores having at least ≥10 nm diameter inside the toner particle with 0.01 to 0.60 porosity. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种调色剂，其特征在于：可以在保持显影性，转印性和定影性的同时降低纸张等上的每单位面积的调色剂的沉积量; 可以获得具有足够图像密度的图像质量; 调色剂具有足够高的起电性能和良好的起电性能，甚至在制造成千上万张片材的图像之后几乎不会使调色剂在载体等中使用; 可以保持高起电性和流动性，并且可以获得具有足够的图像密度和对基底（雾）的污染少的图像质量; 调色剂响应低温定影系统同时保持清洁性能; 调色剂具有良好的抗偏移性，并且不会在定影装置或图像中产生污染，并且提供显影剂，图像形成装置和形成图像的方法。包含至少着色剂和粘合剂树脂的调色剂是具有0.01至0.60孔隙率的调色剂颗粒内具有至少≥10nm直径的一个或多个孔的静电荷图像显影调色剂。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004310018A Electrophotographic toner and image forming apparatus 有权
公开(公告)号：JP2004310018A
公开(公告)日：2004-11-04
申请号：JP2003350221
申请日：2003-10-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAYAMA SHINYA , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , ASAHINA YASUO , SUGIURA HIDEKI , KOBAN AKIHIRO , NAKAJIMA HISASHI , ICHIKAWA TOMOYUKI , UCHIUMI TOMOKO , SAKATA KOICHI , UMEMURA KAZUHIKO
IPC分类号： G03G9/08 , G03G5/08 , G03G9/087 , G03G15/08 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a toner which is adapted to a low-temperature fixing system, has good anti-offset properties and causes neither contamination of a fixing device nor stain of an image. SOLUTION: The toner is formed from a dispersion obtained as follows: at least an organic solvent phase in which a functional-group-containing polyester resin has been dissolved and fine resin particles (A) have been dispersed and an active-hydrogen-containing compound are dispersed in an aqueous medium phase in which fine resin particles (B) have been dispersed, and the functional-group-containing polyester resin and the active-hydrogen-containing compound are brought into an extension reaction and/or a crosslinking reaction, and the toner interiorly contains the fine resin particles (A). COPYRIGHT: (C)2005,JPO&NCIPI

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