Patent ID: 6153343
Filing Date: 2000-11-28
Classification: G03G

Abstract:
A method of forming a toner image on an image transfer sheet comprising the steps of:forming a latent electrostatic image on an image bearing member,developing said latent electrostatic image formed on said image bearing member to a toner image, using a developer, andtransferring said toner image from said image bearing member to an image transfer sheet,said developer (a) comprising a carrier and a toner which comprises a thermoplastic resin and a coloring agent having a chromatic color and capable of retaining said chromatic color even after said toner is sintered, and (b) satisfying at least one of three conditions that:(1) a toner concentration in said developer is in a range of 8 to 24 wt. %,(2) said toner has an absolute charge quantity value of 12 .mu.C/g or less, and(3) a ratio of a true specific gravity of said carrier to that of said toner is in a range of 2 to 3.