Device for reversing direction of motion of paper sheet

Abstract

A device for reversing the direction of motion of a paper sheet has a passage for guiding the paper sheet inside and includes a plurality of rollers each having a specified function. A first roller serves as a driver roller, its rotation causing the paper sheet to be transported into and out of the passage. A second roller is for contacting and rotating with the first roller and thereby transporting the paper sheet in the first direction into the passage. A third roller is disposed on the opposite side of the first roller from the second roller and serves to transport the paper sheet in the second direction out of the passage by contacting and rotating with the first roller. A fourth roller is another driver roller and is disposed in the passage. It allows the front edge of the paper sheet to pass by when it is transported in the first direction by means of the first and second rollers. When the paper sheet has passed between the first and second rollers and its back edge has been disengaged from them, a guiding member pushes and guides the back edge of the paper sheet towards the third roller and the four roller rotates so as to transport the paper sheet in the second direction out of the device.