发明名称 |
Dry developer for developing electrostatic latent image |
摘要 |
A color developer is described that contains a toner and a resin-coated carrier, wherein the toner contains a hydrophobic particulate titania and a charge controlling agent, and the charge controlling agent contains an aromatic hydroxycarboxylic acid metal salt having the following formula (1): wherein each of Q and Q' each independently represents a residual group of an aromatic hydroxycarboxylic acid optionally substituted with an alkyl group, an aralkyl group, or an alkyl group and an aralkyl group; X is a counter ion; and M is a metal. A toner is also provided that contains the above charge controlling agent.
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申请公布号 |
US5994016(A) |
申请公布日期 |
1999.11.30 |
申请号 |
US19980085715 |
申请日期 |
1998.05.28 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
KURAMOTO, SHINICHI;AOKI, MITSUO;YASHIRO, MASAKAZU;OYAMAGUCHI, AKIRA;SUGIMOTO, HIROSHI |
分类号 |
G03G9/08;G03G9/097;G03G9/113;(IPC1-7):G03G9/097 |
主分类号 |
G03G9/08 |
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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