System for transporting inked paper from a printing station to a stacker station by means of pressurized air
AssigneeItek Corporation
InventorThomas M. Madigan
Life of this patent
Estimating the term…
Abstract
A printing station including an impression cylinder and a plate cylinder is positioned adjacent an air applicator which causes paper emerging from the nip of the cylinders to be pressed against an arcuate portion of the impression cylinder so as to be driven over a paper guide means which forwards the paper to a stacking station. Drive means are also included adjacent the guide means, consisting of a pair of beveled rollers which produce stiffening of the paper to give it rigidity along its length in order to support the paper in cantilever fashion as it passes from the drive means to the stacker. The air applicator is designed to produce some air travel in the direction of motion of the inked paper to assist in driving the paper and drying the ink.
Claims1
In a duplicating device, a paper transport system for transporting bleed edge inked paper from a printing station to a stacking station, said printing station including a plate cylinder and an impression cylinder, said paper being driven over a portion of said impression cylinder comprising:
- a. air applicator means which causes air to be directed downwardly over said paper in the neighbor of said impression cylinder, and additionally in the direction of travel of said paper, to cause said paper to be pressed against said portion of said impression cylinder and to be driven thereby;
- b. paper guide means for causing said paper to leave the surface of said impression cylinder;
- and
- c. drive means adjacent said paper guide means and including a pair of beveled rollers positioned upon a common drive shaft for allowing said paper to bow and thereby be stiffened in a direction perpendicular to the width thereof to facilitate transportation of said paper to said stacking station inked side up to prevent physical roller contact.
Dependencies are inferred from the claim text.