Patent ID: 7323282
Filing Date: 2008-01-29
Classification: G03G

Abstract:
1. A method for forming an image comprising the steps of: charging an electrostatic latent image bearing member by externally applying a voltage to a charging member; forming an electrostatic latent image on the charged electrostatic latent image bearing member; developing the electrostatic latent image with a toner to form a toner image on the electrostatic latent image bearing member; transferring the toner image on the electrostatic latent image bearing member to a transfer material through or without an intermediate transferring member; and fixing the toner image on the transfer material through a heat pressure means to form a fixed image on the transfer material, wherein: (I) the heat pressure means is provided with a rotary heating member having a heating medium and a rotary pressing member forming a nip portion in press contact with the rotary heating member, (II) the heat pressure means consumes 0 to 0.025 mg/cm the toner is a dry toner comprising: (i) a binder resin; (ii) a colorant; (iii) at least one of metallophthalocyanine and a metallophthalocyanine derivative having a central metal selected from the group consisting of Cr, Fe, Co, Ni, Zn, Mn, Mg, and Al and (iv) at least one of (a) a polymer containing 0.5 to 20% by mass of a base unit derived from a polymerizable monomer represented by the following structural formula (1), (b) a polymer containing 0.5 to 20% by mass of a base unit derived from a polymerizable monomer represented by the following structural formula (2), and (c) a polymer containing 0.5 to 20% by mass each of a base unit derived from a polymerizable monomer represented by the following structural formula (3) and a vinyl monomer having a carboxyl group: (wherein, R 1 represents a hydrogen atom or a methyl group; R 2 and R 3 each represent independently a hydrogen atom, an aryl group, a C 1 to C 10 alkyl group, a C 1 to C 10 alkenyl group, or a C 1 to C 10 alkoxy group; X 1 represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, or a quaternary ammonium salt; and n represents an integer of 1 to 10) (wherein, R 4 represents a hydrogen atom or a methyl group; R 5 to R 8 each represent independently a hydrogen atom, an aryl group, an aromatic group, a C 1 to C 10 alkyl group, a C 1 to C 10 alkenyl group, or a C 1 to C 10 alkoxy group but at least one of R 5 to R 8 represents an unsubstituted or substituted aromatic group; and X 2 represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, or a quaternary ammonium salt) (wherein, R 9 represents a hydrogen atom or a methyl group; R 10 and R 11 each represent independently a hydrogen atom, an aryl group, a C 1 to C 20 alkyl group, a C 1 to C 20 alkenyl group, or a C 1 to C 20 alkoxy group and R 10 and R 11 may be coupled together to form a nonaromatic organic group having different atoms except a carbon atom and a cyclic structure of C 4 to C 20 ).