Patent ID: 7740239
Filing Date: 2010-06-22
Classification: B65H

Abstract:
1. A sheet post-processing apparatus comprising: a sheet transport path to carry a sheet discharged from an image forming apparatus and to guide it to a standby tray; a processing tray which is provided below the standby tray and on which the sheet supplied from the standby tray is received and can be placed; a post-processing mechanism to perform a post-processing on the sheet placed on the processing tray; a sheet discharge unit to discharge the sheet placed on the standby tray or the sheet subjected to the post-processing by the post-processing mechanism; a paddle which is attached to a rotation shaft disposed in a direction orthogonal to a transport direction of the sheet and flicks the sheet supplied from the standby tray to the processing tray, to align the sheets in a longitudinal direction; and an electricity removing brush which is attached integrally to the rotation shaft and removes electricity of the sheet while being rotated together with the paddle, the electricity removing brush is rotated to a position where comes in contact with the lowermost surface of the sheet on the standby tray when the sheet is placed on the standby tray, and comes in contact with the uppermost surface of the sheet aligned by the paddle on the processing tray and is rotated when the sheet dropped from the standby tray is placed on the processing tray.