| 摘要 |
PROBLEM TO BE SOLVED: To provide a charge control agent which can exhibit excellent negative chargeability in wide temperature-humidity ranges from low temperature to high temperature and from low humidity to high humidity and has excellent stability, and to provide an electrophotographic toner in which triboelectric characteristics between toner particles and between the toner and a carrier can be stabilized, also, a friction charging distribution is made sharp and uniform, and the risks of fogging and toner scattering to an image are reduced by comprising the charge control agent. SOLUTION: As the charge control agent, a compound which is the alkali metal salt of an organic complex anion having a specific structure with boron or aluminum as the center, and in which at least a part of the skeleton of the organic complex anion is substituted for a fluorine atom or a fluoroalkyl group is used. The toner uses the same as a negatively chargeable charge control agent. COPYRIGHT: (C)2010,JPO&INPIT
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