发明名称 |
Toner for a two-component-type magnetic developing agent having excellent spent resistance |
摘要 |
A negatively charged toner for a two-component-type magnetic developing agent, wherein a resin medium for fixing is a copolymer resin or a resin composition having anionic polar groups and contains a magnetic powder in an amount of from 0.1 to 5 parts by weight per 100 parts by weight of the resin medium, but contains no charge control agent. The toner without containing the charge control agent exhibits very excellent spent resistance.
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申请公布号 |
US5500319(A) |
申请公布日期 |
1996.03.19 |
申请号 |
US19940292026 |
申请日期 |
1994.08.18 |
申请人 |
MITA INDUSTRIAL CO., LTD. |
发明人 |
FUNATO, MASATOMI;SHIMIZU, YOSHITAKE;ISHIMARU, SEIJIRO;NAGAO, KAZUYA |
分类号 |
G03G9/083;G03G9/087;G03G9/097;G03G9/10;G03G9/107;G03G9/113;(IPC1-7):G03G9/083 |
主分类号 |
G03G9/083 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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