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公开(公告)号：US4985327A
公开(公告)日：1991-01-15
申请号：US526680
申请日：1990-05-22
申请人： Kiichiro Sakashita , Hirohide Tanikawa , Satoshi Yoshida , Toshiaki Nakahara , Naoki Matsushige , Masatsugu Fujiwara , Yasuo Mitsuhashi
发明人： Kiichiro Sakashita , Hirohide Tanikawa , Satoshi Yoshida , Toshiaki Nakahara , Naoki Matsushige , Masatsugu Fujiwara , Yasuo Mitsuhashi
CPC分类号： G03G9/0819 , Y10S430/104
摘要： A developer for developing electrostatic images, comprising a non-magnetic toner, the toner containing 17-60% by number of non-magnetic toner particles of 5 microns or smaller, containing 1-30% by number of non-magnetic toner particles of 8-12.7 microns, and containing 2.0% by volume or less of nonmagnetic toner particles of 16 microns or larger; wherein the non-magnetic toner has a volume-average particle size of 4-10 microns, and the non-magnetic toner particles of 5 microns or smaller have a particle size distribution satisfying the following formula:N/V=-0.04N+k,wherein N denotes % by number of non-magnetic toner particles of 5 microns of smaller, V denotes % by volume of non-magnetic toner particles of 5 microns or smaller k denotes a positive number of 4.5-6.5, and N denotes a positive number of 17-60.
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公开(公告)号：US4957840A
公开(公告)日：1990-09-18
申请号：US261987
申请日：1988-10-25
申请人： Kiichiro Sakashita , Toshiaki Nakahara , Hirohide Tanikawa , Naoki Matsushige , Satoshi Yoshida , Masatsugu Fujiwara , Yasuo Mitsuhashi
发明人： Kiichiro Sakashita , Toshiaki Nakahara , Hirohide Tanikawa , Naoki Matsushige , Satoshi Yoshida , Masatsugu Fujiwara , Yasuo Mitsuhashi
CPC分类号： G03G9/0819 , Y10S430/104
摘要： A developer for developing electrostatic images, comprising a magnetic toner comprising a binder resin and magnetic powder, the developer containing 17-60% by number of magnetic toner particles of 5 microns or smaller, containing 1-23% by number of magnetic toner particles of 8-12.7 microns, and containing 2.0% by volume or less of magnetic toner particles of 16 microns or larger; wherein the magnetic toner has a volume-average particle size of 4-9 microns, and the magnetic toner particles of 5 microns or smaller have a particle size distribution satisfying the following formula:N/V=-0.04N+k,wherein N denotes % by number of magnetic toner particles of 5 micron or smaller, V denotes % by volume of magnetic toner particles of 5 microns or smaller, k denotes a positive number of 4.5-6.5, and N denotes a positive number of 17-60.
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3.发明授权Developer in an image forming device having a binding resin and magnetic powder 失效具有粘合树脂和磁性粉末的图像形成装置中的显影剂
公开(公告)号：US5014089A
公开(公告)日：1991-05-07
申请号：US528472
申请日：1990-05-25
申请人： Kiichiro Sakashita , Toshiaki Nakahara , Hirohide Tanikawa , Naoki Matsushige , Satoshi Yoshida , Masatsugu Fujiwara , Yasuo Mitsuhashi
发明人： Kiichiro Sakashita , Toshiaki Nakahara , Hirohide Tanikawa , Naoki Matsushige , Satoshi Yoshida , Masatsugu Fujiwara , Yasuo Mitsuhashi
CPC分类号： G03G9/0819 , Y10S430/104
摘要： A developer for developing electrostatic images, containing a magnetic toner having a binder resin and magnetic powder, the developer containing 17-60% by number of magnetic toner particles of 5 microns or smaller, containing 1-23% by number of magnetic toner particles of 8-12.7 microns, and containing 2.0% by volume or less of magnetic toner particles of 16 microns or larger; wherein the magnetic toner has a volume-average particle size of 4-9 microns, and the magnetic toner particles of 5 microns or smaller have a particle size distribution satisfying the following:N/V=-0.04N+k,wherein N denotes % by number of magnetic toner particles of 5 micron or smaller, V denotes % by volume of magnetic toner particles of 5 microns or smaller, k denotes a positive number of 4.5-6.5, and N denotes a positive number of 17-60.
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4.发明授权Developer with surface treated silicic acid for developing electrostatic image 失效具有表面处理硅酸的显影剂用于显影静电图像
公开(公告)号：US5202213A
公开(公告)日：1993-04-13
申请号：US823331
申请日：1992-01-21
申请人： Toshiaki Nakahara , Hirohide Tanikawa , Satoshi Yoshida , Masatsugu Fujiwara , Kiichiro Sakashita
发明人： Toshiaki Nakahara , Hirohide Tanikawa , Satoshi Yoshida , Masatsugu Fujiwara , Kiichiro Sakashita
IPC分类号： G03G9/097
CPC分类号： G03G9/09725
摘要： A developer for developing electrostatic latent images, comprising a mixture of toner and fine powder of silicic acid wherein the mixture has a ratio of B/A of 0.9 or larger provided that the mixture contains A wt. % thereof of the silicic acid fine powder, and contains B wt. % thereof of the silicic acid fine powder after the mixture has been passed through a 200 mesh-sieve.
摘要翻译： 用于显影静电潜像的显影剂，其包含调色剂和硅酸微粉的混合物，其中混合物的B / A比为0.9或更大，条件是混合物含有A wt。 ％的硅酸细粉末，含有Bwt。 该混合物已经通过200目筛后的硅酸细粉末的％。
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5.发明授权Electrophotographic analog and digital imaging and developing using magnetic toner 失效使用磁性调色剂进行电子照相模拟和数字成像和显影
公开(公告)号：US4999272A
公开(公告)日：1991-03-12
申请号：US398502
申请日：1989-08-25
申请人： Hirohide Tanikawa , Toshiaki Nakahara , Satoshi Yoshida , Masatsugu Fujiwara , Kiichiro Sakashita
发明人： Hirohide Tanikawa , Toshiaki Nakahara , Satoshi Yoshida , Masatsugu Fujiwara , Kiichiro Sakashita
CPC分类号： G03G13/09 , G03G5/06 , G03G9/0819 , Y10S430/104
摘要： An image forming method, comprising the steps of: providing an electrophotographic photosensitive member comprising an organic photoconductor, and a toner-carrying member carrying thereon a magnetic toner disposed opposite to the photosensitive member with a predetermined clearance in a developing region; the photosensitive member comprising at least two species of charge-generating substances and carrying thereon a digital and an analog electrostatic images; carrying the magnetic toner on the toner-carrying member to the developing region while regulating the magnetic toner so as to provide a thickness smaller than the clearance, the magnetic toner having a specific particle size distribution and a volume-average particle size of 4-10 microns; and developing the electrostatic images with the magnetic toner.
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6.发明授权Electrophotographic magnetic toner containing polyalkylene and vinyl polymer 失效含有聚亚烷基和乙烯基聚合物的电子照相磁性调色剂
公开(公告)号：US4952476A
公开(公告)日：1990-08-28
申请号：US313456
申请日：1989-02-22
CPC分类号： G03G9/083 , G03G9/0819 , G03G9/0821 , G03G9/08795 , Y10S430/104
摘要： A magnetic toner comprising a binder resin, magnetic powder and 0.1-10 wt. % (based on resin component) of a low-molecular weight polyalkylene, the binder resin comprising a vinyl-type polymer having 5 to 80 wt. % of a tetrahydrofuran (THF)-insoluble; the magnetic toner having a melt index of 0.2 to 12 g/10 min. (125.degree. C., 10 kg load); the residual magnetization .sigma..sub.r and the volume-average particle size d of the magnetic toner satisfying the following formula:3.7-0.11d.ltoreq..sigma..sub.r .ltoreq.6.5-0.23d,wherein .sigma..sub.r represents a residual magnetization (emu/g) under an external magnetic field of 1 KOe and d represents a volume-average particle size of 3 to 16 microns.
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公开(公告)号：US5009973A
公开(公告)日：1991-04-23
申请号：US317182
申请日：1989-02-28
CPC分类号： G03G13/013 , G03G13/08 , G03G9/0819
摘要： An image forming apparatus, comprises: an electrostatic image-bearing member for holding an electrostatic latent image; a developing means for developing the electrostatic latent image to form a toner image on the electrostatic image-bearing member, the developing means including a non-magnetic color toner developing means for development with a developer comprising a non-magnetic color toner and a magnetic toner developing means for development with a magnetic toner, wherein the non-magnetic toner has a volume-average particle size of 4 to 15 microns, the magnetic toner contains 17 to 60% by number of magnetic toner particles having a particle size of 5 microns or smaller, 1-23% by number of magnetic toner particles having a particle size of 8.0-12.7 microns and 2.0% by volume or less of magnetic toner particles having a size of 16 microns or larger, and the magnetic toner has a volume-average particle size of 4-9 micron and a degree of aggregation of 50-95%; a transfer means for transferring the toner image formed on the electrostatic image-bearing member to a transfer-receiving material; and a cleaning means for blade-cleaning the surface of the electrostatic image-bearing member after the transfer.
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公开(公告)号：US06696211B2
公开(公告)日：2004-02-24
申请号：US09788397
申请日：2001-02-21
申请人： Satoshi Yoshida , Hirohide Tanikawa
发明人： Satoshi Yoshida , Hirohide Tanikawa
IPC分类号： G03G908
CPC分类号： G03G9/083 , G03G9/0819 , G03G9/0827 , G03G9/09708
摘要： A developer for developing an electrostatic latent image is formed from toner particles each comprising a binder resin and a colorant, inorganic fine powder having a number-average particle size of 4-80 nm based on primary particles, and electroconductive fine powder. The developer is characterized by having a number-basis particle size distribution in the range of 0.60-159.21 &mgr;m including 15-60% by number of particles in the range of 1.00-2.00 &mgr;m, and 15-70% by number of particles in the range of 3.00-8.96 &mgr;m, each particle size range including its lower limit and excluding its upper limit. As a result of inclusion an appropriate amount of the electroconductive fine powder represented by the particle size fraction of 1.00-2.00 &mgr;m, the developer is suitably used in an image forming method including a contact charging step of charging the image-bearing member based on the direct injection charging mechanism and also in an image forming method including a developing-cleaning step of developing the electrostatic latent image and recovering the developer remaining on the image-bearing member after the transfer step.
摘要翻译： 用于显影静电潜像的显影剂由各自包含粘合剂树脂和着色剂的调色剂颗粒形成，基于一次颗粒的数均粒径为4-80nm的无机细粉末和导电细粉末。 显影剂的特征在于具有在数量级的粒度分布范围为0.60-159.21μm，其中包括在表面积为1.00-2.00μm范围内的15-60％的颗粒数和15-70％的颗粒数 范围3.00-8.96 mum，每个粒径范围包括其下限，不包括其上限。 作为包含适量的由1.00-2.00μm的粒度分数表示的导电细粉末的结果，显影剂适合用于图像形成方法，该图像形成方法包括基于图像承载部件充电图像承载部件的接触充电步骤 直接注入充电机构，以及包括显影清洁步骤的图像形成方法，该步骤使静电潜像显影，并在转印步骤之后回收残留在图像承载元件上的显影剂。
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9.发明授权Toner for electrostatic latent image development, electrostatic latent image developer, toner cartridge, process cartridge, and image forming apparatus 有权用于静电潜像显影的调色剂，静电潜像显影剂，调色剂盒，处理盒和成像设备公开(公告)号：US09316935B2
公开(公告)日：2016-04-19
申请号：US12852870
申请日：2010-08-09
摘要： A toner for electrostatic latent image development is disclosed. The toner for electrostatic latent image development includes toner particles, the toner particles includes a binder resin and a release agent, and the toner has a linear thermal expansion coefficient in accordance with JIS K 7197-1991 of from about 6×10−5/C.° to about 1×10−3/C.°. An electrostatic latent image developer, a toner cartridge, a process cartridge, and an image forming apparatus are also disclosed.
摘要翻译： 公开了一种用于静电潜像显影的调色剂。 用于静电潜像显影的调色剂包括调色剂颗粒，调色剂颗粒包括粘合剂树脂和脱模剂，并且调色剂具有根据JIS K 7197-1991的线性热膨胀系数为约6×10-5 /℃ °至约1×10-3 /℃。 还公开了静电潜像显影剂，调色剂盒，处理盒和图像形成装置。
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10.发明授权Electrostatic charge image developing toner, electrostatic charge image developing developer, toner cartridge, process cartridge, image forming apparatus, and image forming method 有权静电荷图像显影调色剂，静电荷图像显影显影剂，调色剂盒，处理盒，成像设备和图像形成方法公开(公告)号：US09104125B2
公开(公告)日：2015-08-11
申请号：US13282960
申请日：2011-10-27
CPC分类号： G03G9/0804 , G03G9/0821 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/0975
摘要： An electrostatic charge image developing toner includes a binder resin that contains an amorphous polyester resin and a colorant. The toner satisfies the following expressions: 20 μS/cm≦ρ≦150 μS/cm, and 0.01%
摘要翻译： 静电荷图像显影调色剂包括含有无定形聚酯树脂和着色剂的粘合剂树脂。 该调色剂满足以下表达式：20μS/ cm＆amp; nlE;＆amp; nlE;150μS/ cm和0.01％
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