Patent ID: 7379696
Filing Date: 2008-05-27
Classification: G03G

Abstract:
1. An image forming apparatus for fixing a toner image, comprising: a first roller having a heater therein, a second roller, wherein the first roller is a cylinder having a thickness not greater than 1.0 mm and the first and second rollers are rotated while contacted with each other at a pressure not greater than 1.5×10 a nip between the first and second rollers passing through a support bearing the toner image so that the toner image contacts the first roller, wherein the toner image is formed of a toner comprising: a colorant; a binder resin comprising: wherein R represents an unsaturated linear aliphatic group having from 2 to 20 carbon atoms, and n is an integer of from 2 to 20; and a release agent, wherein a molar ratio of the ester bond of the crystalline polyester resin to total ester bonds included in the binder resin is not less than 0.60, and wherein the toner has a weight average particle diameter of from 3.0 to 9.0 μm, and includes toner particles having a particle diameter not greater than 5 μm in an amount of from 60 to 90% by quantity when the weight average particle diameter and particle diameter are measured using a MULTISIZER manufactured by Beckmann Coulter, Inc.