| 发明名称 |
Toner, and two component developer and image forming apparatus using the toner |
| 摘要 |
A toner is provided that contains a binder resin; a colorant; a release agent; and an external additive, wherein the toner has an average circularity of from 0.940 to 0.965 and a crater having a depth of from 0.02 to 0.1 mum, and wherein the crater has an amount of the external additive larger than an average amount thereof on the toner, along with a two-component developer containing the toner and an image forming apparatus using the toner.
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| 申请公布号 |
US7429442(B2) |
申请公布日期 |
2008.09.30 |
| 申请号 |
US20050061477 |
申请日期 |
2005.02.22 |
| 申请人 |
RICOH COMPANY, LTD. |
发明人 |
HONDA TAKAHIRO;TOMITA MASAMI;NANYA TOSHIKI;SASAKI FUMIHIRO;EMOTO SHIGERU;HIGUCHI HIROTO;YAMADA HIROSHI;YAGI SHINICHIRO;SUZUKI TOMOMI;AWAMURA JUNICHI;SHIMOTA NAOHITO |
| 分类号 |
G03G9/08;G03G9/083;G03G9/087;G03G9/113 |
主分类号 |
G03G9/08 |
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