Printing apparatus employing a compliant sheet corrugating device

摘要

A simple, low cost corrugation device for removing curl from sheets includes a compliant corrugator roll that is effective with light weight, low beam strength papers needing corrugation and passive with heavy weight, high beam stiffness papers not needing/not wanting corrugation. One type of corrugation roll is a cylindrical elastomeric roll made of a foam or sponge-like material. An alternative corrugator roll configuration is a hollow frustrum of a cone.