Patent ID: 8034520

Claim:
A magenta toner for forming an electrophotographic image comprising magenta toner particles containing a binder and a magenta colorant, wherein the magenta colorant is composed of compound A represented by Formulas (1), (2) or (3) in an amount of mA and compound B selected from a group consisting of a mono-azo pigment, a naphthol pigment and a rhodamine chelate pigment in an amount of mB, and a ratio of amount mA:mB is 90:10 to 55:45, in the Formula (1) R 1 through R 4 each represents an alkyl group having 1-4 carbon atoms, a cycloalkyl group or an aryl group; R 5 is a methyl group or a halogen atom, and i is an integer of 0-4, provided that plural R 5 s may be the same or different when i is 2-4; R 6 and R 7 each is a methyl group or a halogen atom and j and k each is an integer of 0-3, provided that plural R 6 s and R 7 s may be the same or different when j or k is 2 or 3; and R 0 is an alkyl group having 1-6 carbon atoms, or an aryl group, in the Formula (2), R 8 through R 10 and R 14 through R 16 each is an alkyl group having 1-4 carbon atoms, a cycloalkyl group or an aryl group; R 11 and R 17 each is a methyl group or a halogen atom and m and p each is an integer of 0-4, provided that plural R 11 s and R 17 s may be the same or different when m or p is 2 to 4; R 12 , R 13 , R 18 and R 19 each is a methyl group or a halogen atom and n, o, q and r each is an integer of 0-3, provided that plural R 12 s, R 13 s, R 18 s and R 19 s may be the same or different when n, o, q or r is 2 or 3; R 20 is —CO—, an alkylene group having 2-9 carbon atoms, or a dialkoxy group; and R 21 and R 22 each is a hydrogen atom, an alkyl group having 1-6 carbon atoms or an aryl group, [Rhod] s [E t− ] u Formula (3) in the Formula (3), Rhod is a compound represented by the Formulas (1) or (2), E is an anion other than sulfonic acid compound, t is a number of ionic valent of the anionic group E, u is an integer of 1 or 2, and s is a product of t and u.