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公开(公告)号:US4965162A
公开(公告)日:1990-10-23
申请号:US403080
申请日:1989-09-05
申请人: Shigeo Aonuma , Koichi Oyamada
发明人: Shigeo Aonuma , Koichi Oyamada
IPC分类号: G03G9/097
CPC分类号: G03G9/09708 , Y10S525/934
摘要: An electrophotographic developer is disclosed, that contains toner particles and fine particles of tin oxide having an electrical resistivity of from 10.sup.2 to 10.sup.9 .OMEGA..cm. The developer ensures efficient image transfer and exhibits good developing ability.
摘要翻译: 公开了一种电子照相显影剂,其包含调色剂颗粒和电阻率为102至109欧姆·厘米的氧化锡微粒。 开发人员确保有效的图像传输,并具有良好的开发能力。
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公开(公告)号:US4880719A
公开(公告)日:1989-11-14
申请号:US212983
申请日:1988-06-29
申请人: Toshiaki Murofushi , Hiroshi Nakazawa , Koichi Oyamada , Shigeo Aonuma , Yoshimi Amagai , Yasuhiro Ohya
发明人: Toshiaki Murofushi , Hiroshi Nakazawa , Koichi Oyamada , Shigeo Aonuma , Yoshimi Amagai , Yasuhiro Ohya
CPC分类号: G03G9/09708 , G03G9/107
摘要: An electrophotographic two-component system developer is described, comprising a positive charging toner and a negative charging carrier of the dispersed magnetic powder type, wherein a hydrophilic alumina particle is adhered onto the surface of said positive charging toner and a negative charging carrier has a volume average particle diameter of from 30 to 80 .mu.m. The developer provides reduced toner cloud upon development processing and provides toner images free from fog.
摘要翻译: 描述了一种电子照相双组分系统显影剂,其包括分散磁粉型的正电荷调色剂和负电荷载体,其中亲水性氧化铝颗粒粘附到所述正电荷调色剂的表面上,负电荷载体具有体积 平均粒径为30〜80μm。 显影处理后,显影剂提供减少的调色剂云,并提供无雾的调色剂图像。
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公开(公告)号:US5252421A
公开(公告)日:1993-10-12
申请号:US655189
申请日:1991-02-13
申请人: Masanori Ichimura , Toru Murakami , Koichi Oyamada
发明人: Masanori Ichimura , Toru Murakami , Koichi Oyamada
CPC分类号: G03G9/08704
摘要: An electrophotographic is disclosed, comprising a binder resin, a coloring material, and a polyalkylene, wherein the polyalkylene has an average particle volume of 0.05 .mu.m.sup.3 or more. The toner exhibits broadened fixing latitude when fixed by heat roll fixing without using any offset inhibiting liquid.
摘要翻译: 公开了包含粘合剂树脂,着色材料和聚亚烷基的电子照相,其中聚亚烷基的平均颗粒体积为0.05μm或更大。 当通过热辊定影固定时,调色剂显示出更宽的固定纬度,而不使用任何偏移抑制液体。
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公开(公告)号:US5032483A
公开(公告)日:1991-07-16
申请号:US438991
申请日:1989-11-22
申请人: Masanori Ichimura , Toru Murakami , Koichi Oyamada
发明人: Masanori Ichimura , Toru Murakami , Koichi Oyamada
IPC分类号: G03G9/09
CPC分类号: G03G9/091 , G03G9/0914
摘要: A red color toner for electrophotography comprising a binder resin and a colorant component comprising C.I. Pigment Red 48:1, or C.I. Pigment Red 48:1 and a second red pigment which may be C.I. Pigment Red 122 or C.I. Pigment Red 57:1, or C.I. Pigment Red 48:1 and a yellow pigment which may be C.I. Pigment Yellow 97 or C.I. Pigment Yellow 12. The colorant preferably is present in an amount between about 1% and about 20% by weight of the binder resin.
摘要翻译: 一种用于电子照相术的红色调色剂,包括粘合剂树脂和着色剂组分,其包含C.I. 颜料红48:1或C.I. 颜料红48:1和第二种红色颜料,可以是C.I. 颜料红122或C.I. 颜料红57:1或C.I. 颜料红48:1和黄色颜料,可以是C.I. 颜料黄97或C.I. 颜料黄12.着色剂优选以粘合剂树脂的约1重量%至约20重量%的量存在。
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公开(公告)号:US4933251A
公开(公告)日:1990-06-12
申请号:US228199
申请日:1988-08-04
申请人: Masanori Ichimura , Toru Murakami , Koichi Oyamada
发明人: Masanori Ichimura , Toru Murakami , Koichi Oyamada
CPC分类号: G03G9/09725
摘要: An electrophotographic developer is described, comprising toner particles and carrier particles, characterized in that the toner particles have a layer of externally additive agents comprising fine metal oxide particles having an electric resistance of 1.times.10.sup.2 to 1.times.10.sup.9 .OMEGA..multidot.cm and fine silica particles and cleaning aid particles, and the layer of externally additive agents does not have a chain like structure.
摘要翻译: 描述了一种电子照相显影剂,其包括调色剂颗粒和载体颗粒,其特征在于,调色剂颗粒具有包含电阻为1×102至1×10 9欧米茄×厘米的细金属氧化物颗粒的外部添加剂层和二氧化硅微粒和清洁助剂颗粒, 并且外部添加剂层不具有链状结构。
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6.
公开(公告)号:US4837100A
公开(公告)日:1989-06-06
申请号:US102456
申请日:1987-09-29
IPC分类号: G03G9/097
CPC分类号: G03G9/097
摘要: A positively chargeable electrophotographic developer is disclosed, comprising a carrier, toner particles positively chargeable by friction with the carrier, fine particles of hydrophilic alumina, and fine particles of one of tin oxide, hydrophobic silica and titanium dioxide. The developer hardly undergoes toner cloud or toner dropping during development and suffers neither extreme deterioration in charging properties nor fog formation even when used for taking a large number of copies.
摘要翻译: 公开了一种带正电荷的电子照相显影剂,其包括载体,通过与载体摩擦而带正电的调色剂颗粒,亲水性氧化铝的细颗粒和氧化锡,疏水性二氧化硅和二氧化钛之一的细颗粒。 显影时,显影剂几乎不会发生调色剂云或调色剂滴落,甚至即使用于大量的复印也不会极大地降低充电性能,也不起雾。
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