Patent ID: 6426169
Filing Date: 2002-07-30
Classification: G03G

Abstract:
A toner comprising toner particles each comprising a binder resin, a colorant and an organometallic compound, whereinthe organometallic compound is an azo iron compound formed from a monoazo compound having at least one alkyl group and two hydroxyl groups capable of bonding with an iron atom, and the toner has a tetrahydrofuran-soluble content providing a gel-permeation chromatogram showing at least one peak in a molecular weight region of 3Ã—103 to 5Ã—104 and at least one peak or shoulder in a molecular weight region of above 5Ã—104 and at most 1Ã—107, wherein the monoazo compound is represented by any one of formulae (a)-(c) shown below: wherein R1-R8 independently denote a hydrogen atom, a halogen atom or an alkyl group with the proviso that at least one of R1-R8 is an alkyl group; wherein R9-R18 independently denote a hydrogen atom, a halogen atom or an alkyl group with the proviso that at least one of R9-R18 is an alkyl group; and wherein R19-R30 independently denote a hydrogen atom, a halogen atom or an alkyl group with the proviso that at least one of R19-R30 is an alkyl group.