-
公开(公告)号：JP2005148405A
公开(公告)日：2005-06-09
申请号：JP2003385770
申请日：2003-11-14
Applicant: Sharp Corp , シャープ株式会社
Inventor： KOREMATSU KAZUYA , ISHIDA TOSHINAO , SAWAI MASAYUKI , KIDA YASUSHI , SEKI MASAHIRO , NISHIKAWA TORU
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic toner capable of suppressing fogging and preventing filming even after long-term use. SOLUTION: The electrophotographic toner 1 is obtained by locating fine strontium titanate particles 3 and hydrophobic inorganic fine particles 4 whose average particle diameter is 1/10 to 1/3 of that of the fine strontium titanate particles on toner base particles 2 comprising at least a release agent, a colorant and a binder resin and having an average particle diameter of ≤10 μm. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供即使在长期使用后能够抑制起雾和防止成膜的电子照相调色剂。 解决方案：电子照相调色剂1通过将细钛酸锶颗粒3和平均粒径为细钛酸锶钛颗粒颗粒的1/10的1/10的疏水性无机细颗粒4定位在调色剂基础颗粒2上而获得， 至少一种脱模剂，着色剂和粘合剂树脂，并且具有≤10μm的平均粒径。 版权所有（C）2005，JPO＆NCIPI
-
公开(公告)号：JP2004163710A
公开(公告)日：2004-06-10
申请号：JP2002330351
申请日：2002-11-14
Applicant: Sharp Corp , シャープ株式会社
Inventor： NAGAI TAKAFUMI , SAWAI MASAYUKI , ISHIDA TOSHINAO , KIDA YASUSHI , KOREMATSU KAZUYA , NISHIKAWA TORU , KOJIMA YOSHIMI
CPC classification number: G03G9/097 , G03G9/0821
Abstract: PROBLEM TO BE SOLVED: To provide a nonmagnetic monocomponent toner giving stable image quality in a long-term use. SOLUTION: In the nonmagnetic monocomponent toner consisting of colored particles comprising at least a binder resin, a colorant and a wax and at least one external additive, an external additive having an average particle diameter, the relation of which with the Vickers hardness of the colored particles is within a prescribed range, is used. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2004109200A
公开(公告)日：2004-04-08
申请号：JP2002268410
申请日：2002-09-13
Applicant: Sharp Corp , シャープ株式会社
Inventor： KOREMATSU KAZUYA , ISHIDA TOSHINAO , SAWAI MASAYUKI , KIDA YASUSHI
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic nonmagnetic single component toner having a sufficient non-offset band in oil-less fixing and showing a good state of uniformity in an image, fog and image density. SOLUTION: The nonmagnetic single component toner comprises at least a polyester resin, a coloring pigment and a release agent. The toner has 105 to 130°C softening point, 5.5 to 10.5 μm volume average particle size and 70 to 210% coating rate of fine particles externally added to the toner base particles. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2004029160A
公开(公告)日：2004-01-29
申请号：JP2002182028
申请日：2002-06-21
Applicant: Sharp Corp , シャープ株式会社
Inventor： OGAWA SATORU , KUBO MASAHIKO , SAWAI MASAYUKI , KIDA YASUSHI
CPC classification number: G03G9/08755 , G03G9/08782
Abstract: PROBLEM TO BE SOLVED: To provide a black toner which satisfies the requirements of reduction in energy consumption, speeding up and enhancement of performance, and a color toner which is put to practical use in an image forming apparatus with an oilless fixing device, and also to provide a desirable color toner obtained using the above black toner and color toner. SOLUTION: In the black toner, a polyester resin having an acid value of 7-20 mgKOH/g is used as a binding resin and a carboxylic acid modified paraffin wax having an acid value of 4-30 mgKOH/g is used as a wax. In the color toner, a polyester resin having an acid value of 7-20 mgKOH/g is used and a carboxylic acid modified paraffin wax having an acid value of 6-25 mgKOH/g is used as a wax. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2006119672A
公开(公告)日：2006-05-11
申请号：JP2006007024
申请日：2006-01-16
Applicant: Sharp Corp , シャープ株式会社
Inventor： ISHIDA TOSHINAO , MATSUMOTO MASANORI , SAWAI MASAYUKI , TAKEDA YUKO , KIDA YASUSHI
IPC: G03G9/10
Abstract: PROBLEM TO BE SOLVED: To provide a color image forming apparatus in which photoreceptors and toners can be used for the same duration in relation to respective colors in a tandem system, and which is low-cost.
SOLUTION: In the tandem system image forming apparatus in which electrostatic latent images are respectively formed on a plurality of photoreceptors, and which includes developing vessels respectively containing a plurality of toners having different colors for developing the respective electrostatic latent images, the plurality of toners include at least a toner for black and abrasive property of a carrier for the toner for black to a photoreceptor surface is lower than abrasive properties of carriers for the other toners for development.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种彩色图像形成装置，其中可以使用光感受器和调色剂相对于串联系统中的各种颜色相同的持续时间，并且是低成本的。 解决方案：在其中静电潜像分别形成在多个光感受器上并且包括分别包含多个具有不同颜色的调色剂的显影容器的串联系统成像设备中，用于显影各静电潜像，多个 调色剂至少包括用于黑色的调色剂和用于黑色感光体表面的调色剂的载体的研磨性能低于用于显影的其它调色剂的载体的研磨性能。 版权所有（C）2006，JPO＆NCIPI
-
Patent Agency Ranking
公开(公告)号：JP2005140965A
公开(公告)日：2005-06-02
申请号：JP2003376806
申请日：2003-11-06
Applicant: Sharp Corp , シャープ株式会社
Inventor： KIDA YASUSHI , ISHIDA TOSHINAO , SAWAI MASAYUKI , SEKI MASAHIRO , KOREMATSU KAZUYA , NISHIKAWA TORU
Abstract: PROBLEM TO BE SOLVED: To provide a nonmagnetic single component toner having suppressed filming, fog or the like for long-term use and capable of forming an image with stable picture quality.
SOLUTION: In the toner prepared by mixing and adding at least two kinds of external additives to toner particles containing at least a polyester resin and a coloring pigment, the external additives are silica fine particles having 5 to 100 nm average particle size and silica melamine composite fine particles having 300 to 1,000 nm average particle size.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种长期使用抑制成膜，雾化等的能够形成图像质量稳定的非磁性单组分调色剂。 解决方案：在通过混合并将至少两种外部添加剂添加到至少含有聚酯树脂和着色颜料的调色剂颗粒中制备的调色剂中，外部添加剂是平均粒度为5至100nm的二氧化硅细颗粒， 二氧化硅三聚氰胺复合微粒的平均粒径为300〜1000nm。 版权所有（C）2005，JPO＆NCIPI
-
公开(公告)号：JP2005258331A
公开(公告)日：2005-09-22
申请号：JP2004073191
申请日：2004-03-15
Applicant: Sharp Corp , シャープ株式会社
Inventor： NISHIKAWA TORU , ISHIDA TOSHINAO , SAWAI MASAYUKI , KIDA YASUSHI , SEKI MASAHIRO , KOREMATSU KAZUYA
Abstract: PROBLEM TO BE SOLVED: To provide a nonmagnetic single component developing apparatus free from problems image defects such as fading caused by the material of a supply roller or from problems such as toner filming on a developing roller, toner deterioration and wear of a supply roller, and capable of forming a high picture quality image having no image failure for an extremely long time. SOLUTION: The nonmagnetic single component developing apparatus comprises a developing roller 4, a supply roller 5, a regulating blade 6, a developing tank 7, and an impeller 8. The developing roller 4 has 45° to 65° spring hardness Hs (A) as the surface hardness. The ratio (Sb/Sa) of the peripheral speed Sb of the supply roller 5 to the peripheral speed Sa of the developing roller 4 is specified to 0.4 to 1.0. The supply roller 5 comprises a continuous closed-cell foam of a rubber material having 300 to 500 μm cell diameter. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种非磁性单一成分显影装置，不存在由供给辊的材料引起的褪色等图像缺陷或显影辊上的调色剂成膜等问题，调色剂劣化和磨损等问题 并且能够在非常长的时间内形成没有图像故障的高画质图像。 解决方案：非磁性单组分显影装置包括显影辊4，供给辊5，调节刮板6，显影槽7和叶轮8.显影辊4具有45°至65°的弹簧硬度Hs （A）作为表面硬度。 供给辊5的圆周速度Sb与显影辊4的圆周速度Sa的比（Sb / Sa）规定为0.4〜1.0。 供应辊5包括具有300至500μm单元直径的橡胶材料的连续闭孔泡沫。 版权所有（C）2005，JPO＆NCIPI
-
公开(公告)号：JP2004086005A
公开(公告)日：2004-03-18
申请号：JP2002248760
申请日：2002-08-28
Applicant: Sharp Corp , シャープ株式会社
Inventor： KIDA YASUSHI , ISHIDA TOSHINAO , SAWAI MASAYUKI , KOREMATSU KAZUYA
Abstract: PROBLEM TO BE SOLVED: To provide a nonmagnetic monocomponent toner which has sufficient flow properties and developability and can sufficiently satisfy low-temperature fixability and high-temperature offset resistance in an oilless fixing roller. SOLUTION: The toner consists of at least a polyester resin, coloring pigments and a releasing agent. The toner resin composition is ≤10% tetrahydrofuran (THF) insoluble content, is 3,000 to 5,000 in the number average molecular weight Mn by a gel permeation chromatography (GPC) of a THF soluble content, is 30,000 to 90,000 in weight average molecular weight Mw, is 10.0 to 25.0 in dispersion ratio (Mw/Mn) and is specified in external additive coverage by inorganic particulate to 70 to 210%. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2006235344A
公开(公告)日：2006-09-07
申请号：JP2005051247
申请日：2005-02-25
Applicant: Sharp Corp , シャープ株式会社
Inventor： OGAWA SATORU , ISHIDA TOSHINAO , SAWAI MASAYUKI , KIDA YASUSHI , NISHIKAWA TORU , TOIZUMI KIYOSHI , KUBO MASAHIKO
Abstract: PROBLEM TO BE SOLVED: To provide a toner not undergoing the effect of change in temperature and humidity, with high charging stability and having good fixing property and releasability.
SOLUTION: The electrophotographic toner includes a toner parent body particle containing at least a binder resin, a colorant, a charge controller and an additive, in which the binder resin comprises a polyester resin obtained by reacting an aromatic alcohol ingredient, the charge controller comprises an organic bentonite and the additive comprises metatitanic acid subjected to hyrdophobization processing.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供不具有温度和湿度变化的调色剂，具有高充电稳定性和良好的定影性和脱模性的调色剂。 电解调色剂：电子照相调色剂包括至少含有粘合剂树脂，着色剂，充电控制剂和添加剂的调色剂母体颗粒，其中粘合剂树脂包括通过使芳族醇成分反应获得的聚酯树脂， 控制器包括有机膨润土，并且添加剂包括经过氢化磷酸化处理的偏钛酸。 版权所有（C）2006，JPO＆NCIPI
-
公开(公告)号：JP2005258330A
公开(公告)日：2005-09-22
申请号：JP2004073190
申请日：2004-03-15
Applicant: Sharp Corp , シャープ株式会社
Inventor： SAWAI MASAYUKI , KAWAHARA ARIHIKO , KOREMATSU KAZUYA , NISHIKAWA TORU , ISHIDA TOSHINAO , KIDA YASUSHI , SEKI MASAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a non-magnetic one-component development apparatus that can form images of high quality for a long period of time without causing aggregation and liquidity degradation of toner, filming of toner to a developing roller and photoreceptor, toner-fusion to a control blade, and image defects such as ground fog, void, fading or the like. SOLUTION: In the non-magnetic one-component development apparatus 4, a developing roller 5 uses elastic materials with spring hardness of Hs (A) 45-65°, and a feed roller 7 uses foams of continuous closed-cell foam rubber materials having not less than 400/cm 2 in the number of unit cell and not more than 500 μm in the cell diameter. Further, the toner stored in a developer tank 9 uses toner particles containing binder resins and coloring agents that are externally added with inorganic fine particles of 250-600 nm in an average primary particle size. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种可以长时间形成高质量图像而不会引起调色剂的聚集和流动性降低的非磁性单组分显影装置，将调色剂成膜到显影辊和感光体 调色剂熔融到控制刮刀，以及诸如地面雾，空隙，褪色等的图像缺陷。 解决方案：在非磁性单组分显影装置4中，显影辊5使用具有Hs（A）45-65°的弹簧硬度的弹性材料，并且进料辊7使用泡沫的连续闭孔泡沫 橡胶材料在单元数目中不小于400 / cm 2 SP / 2，单元直径不大于500μm。 此外，存储在显影剂罐9中的调色剂使用含有粘合剂树脂和着色剂的调色剂颗粒，其外部加入平均一次粒径为250-600nm的无机细颗粒。 版权所有（C）2005，JPO＆NCIPI
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.024 seconds)
