Patent ID: 7645515
Filing Date: 2010-01-12
Classification: G03G,Y10T

Abstract:
1. A transfer arrangement used in a transfer portion of an image forming apparatus, said transfer arrangement comprising: a first electrically conductive member that contacts a toner image bearing member of said image forming apparatus, and a second electrically conductive member provided to face said toner image bearing member, wherein said first electrically conductive member has a voltage dependence ΔR of electric resistance expressed as follows: wherein said transfer arrangement including said first and second electrically conductive members has a voltage dependence ΔR of electric resistance expressed as follows: wherein said first electrically conductive member is made of polyurethane resin to which an electrically conducive polymer is added, and an adding amount of said electrically conducive polymer with respect to said polyurethane resin is from 8 wt % to 40 wt %.