Patent ID: 7559642
Filing Date: 2009-07-14
Classification: B41J

Abstract:
1. A sheet material conveying apparatus for conveying a sheet material under electrostatic attraction on a conveying belt having plural electrodes arranged in a spaced manner in a conveying direction, wherein each of the plural electrodes has an electric power receiving portion, and a sheet material attracting portion of each electrode is positioned at an upstream side in the conveying direction of the belt with respect to the electric power receiving portion of the electrode, wherein the conveying belt is formed by an endless belt supported by rollers in at least two positions in upstream and downstream positions in the conveying direction, wherein the sheet material is attracted to a front side of the conveying belt and the electric power receiving portion is provided on a back side of the conveying belt, wherein the conveying apparatus comprises an electric power supply portion for supplying power to the electric power receiving portion and the electric power supply portion is provided on an inner side of the endless belt, and wherein when the sheet material attracting portion of each electrode is first in contact with the sheet material at a position opposed to an outer periphery of the upstream roller so that the sheet material attracting portion has an attraction force and when the sheet material attracting portion of the electrode is located at a position opposed to an outer periphery of the upstream roller, the electric power receiving portion of the electrode is in contact with the electric power supply power.