公开(公告)号：US5804351A

公开(公告)日：1998-09-08

申请号：US730932

申请日：1996-10-16

Applicant: Hiroshi Takano ,  Masanori Ichimura ,  Masaki Hashimoto ,  Hideyuki Akagi ,  Kazuya Furuta ,  Koji Fukushima ,  Masahiro Takagi ,  Kensaku Togao ,  Satoru Ishigaki ,  Michio Take ,  Yuka Ishihara

Inventor： Hiroshi Takano ,  Masanori Ichimura ,  Masaki Hashimoto ,  Hideyuki Akagi ,  Kazuya Furuta ,  Koji Fukushima ,  Masahiro Takagi ,  Kensaku Togao ,  Satoru Ishigaki ,  Michio Take ,  Yuka Ishihara

IPC: G03G9/08 ,  G03G9/097

CPC classification number: G03G9/0819 ,  G03G9/09708

Abstract: A toner for electrostatic-image development which comprises toner particles comprising a colorant and a binder resin, the toner particles having a volume-average particle diameter of from 3 to 9 .mu.m and a particle size distribution satisfying the following expressions (1) and (2): D16(v)/D50(v).ltoreq.1.475-0.036.times.D50(v) (1) D50(p)/D84(p).ltoreq.1.45 (2) wherein D16(v) and D50(v) represent, in terms of absolute value, a cumulative 16% diameter (.mu.m) and a cumulative 50% diameter (.mu.m), respectively, of a cumulative volume particle diameter distribution of the toner particles depicted from the larger diameter side, and D50(p) and D84(p) represent, in terms of absolute value, a cumulative 50% diameter (.mu.m) and a cumulative 84% diameter (.mu.m), respectively, of a cumulative population particle diameter distribution of the toner particles depicted from the larger diameter side.

Abstract translation: 一种用于静电图像显影的调色剂，其包含包含着色剂和粘合剂树脂的调色剂颗粒，调色剂颗粒的体积平均粒径为3至9μm，粒度分布满足以下表达式（1）和（ 2）：D16（v）/ D50（v）