发明名称 |
Two-component developer for developing electrostatic images. |
摘要 |
<p>Disclosed is a two-component developer, which comprises, as the carrier, specific sintered ferrite particles obtained by modifying ferrite particles obtained by modifying ferrite customarily used for a carrier, and which can provide a copies image having a high quality, while improving the stirring property and flowability of the carrier. This carrier comprises sintered ferrite particles having an internal pore ratio, based on the area, of 20 to 30% in an amount of 50 to 80% by weight based on the entire carrier, and the developing voltage dependency of the electric resistance of the carrier is reduced and controlled to an appropriate level. <IMAGE></p> |
申请公布号 |
EP0449541(A1) |
申请公布日期 |
1991.10.02 |
申请号 |
EP19910302558 |
申请日期 |
1991.03.25 |
申请人 |
MITA INDUSTRIAL CO., LTD. |
发明人 |
KOMATA, HIROSHI;TSUJI, NOBUYUKI;KIMURA, TAKAHIKO;ASADA, HIDENORI;YAMADA, SHIGEKI |
分类号 |
G03G9/107 |
主分类号 |
G03G9/107 |
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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