Patent ID: 9079734
Filing Date: 2015-07-14
Classification: B65H

Abstract:
1. A paper feeding device, comprising: a paper stacking tray that carries thereon stacked sheets of printing paper and moves up/down along a stacking direction of the sheets of printing paper, wherein a longitudinal direction is along a front end of the printing paper stacked on the paper stacking tray; a paper transport member that sucks in air to suck and transport a sheet of printing paper stacked on the paper stacking tray; a separation duct that, disposed facing the front end of the printing paper stacked on the paper stacking tray, constitutes a channel for air separating the printing paper; a separation fan that, coupled to an end of the separation duct with respect to the longitudinal direction, generates an air flow separating the printing paper stacked on the paper stacking tray; an air sucking duct that, disposed in the longitudinal direction facing a top face of the printing paper stacked on the paper stacking tray, constitutes a channel for air sucking a sheet of printing paper stacked on the paper stacking tray; an air sucking fan that, coupled to an end of the air sucking duct with respect to the longitudinal direction, generates an air flow separating the printing paper stacked on the paper stacking tray; and a relay duct that guides air coming out of the air sucking fan to the separation fan, wherein the air sucking fan and the separation fan are arranged so that the air sucking fan and the separation fan have rotation axes thereof substantially parallel to a top face of the printing paper stacked on the paper stacking tray and also so that the air sucking fan ejects air from an air outlet thereof in the same direction as the separation fan sucks in air through an air inlet thereof; and the relay duct extends along a straight line from the air outlet of the air sucking fan to the air inlet of the separation fan.