| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an endless belt free from cracks or fracture during usage, a method for manufacturing the belt, and an electrophotographic image forming device using the belt. <P>SOLUTION: The endless belt comprises a conductive resin composition and shows a folding endurance (times) of 1,000 or more in a folding endurance test (JIS P8115) at a 90° bending angle and a folding endurance angle coefficient (a) of -0.030 to -0.040, the coefficient defined by formula (A):a=(log x<SB>1</SB>-log x<SB>2</SB>)/(135-45), wherein x<SB>1</SB>represents a folding endurance (times) at a 135° bending angle and x<SB>2</SB>represents a folding endurance (times) at 45° bending angle. The method for manufacturing the endless belt comprises centrifugal molding. The electrophotographic image forming device is equipped with the above endless belt. <P>COPYRIGHT: (C)2007,JPO&INPIT |
