To provide an excellent intermediate transfer body used for an image forming apparatus and free from image irregularity even in realizing speeding-up by inexpensively molding a seamless belt having a high elastic modulus and being very good in thickness accuracy.
The seamless belt is set so that tensile elastic modulus is ≥1000Mpa and the variation of the thickness of the belt is ≤15μm. A semiconductive belt set so that the common logarithm value of the surface resistivity of the seamless belt is in the range of 7 to 14(logΩ/SQUARE) is constituted so that the surface resistance ratio of both adjacent points obtained in measuring surface resistance at the pitch of 5mm is ≤1.5. In the manufacturing method for the seamless belt, in applying a hollow resin solution extruded from an annular die to the inner surface of a cylindrical metallic mold, gas is injected inside the hollow resin solution so as to expand it. Thus, a solvent is dried after applying the solution to the inner surface of the cylindrical metallic mold.
KAWAZOE MASAKAZU
KURATA TOMOHIRO
YANO MASAYA
Koichi Kajisaki
Yuzo Ozaki
Toshihiko Taniguchi
Next Patent: ELECTROSTATIC IMAGE DEVELOPING TONER AND ITS PRODUCTION METHOD