Patent ID: 9138983
Filing Date: 2015-09-22
Classification: B41F,B41J

Abstract:
1. A computer-implemented method for controlling operation of a pressure comprising: providing a pressure roll that is configured to contact a spreader drum in an image forming device to form a spreader nip between the pressure roll and the spreader drum, the pressure roll having an elastomer coating on an external surface, and having an inner wall enclosing a single internal pressure cavity in the pressure roll, the inner wall having a tapered configuration that renders a thickness of the inner wall to be relatively thinner in a central portion and relatively thicker toward each end portion in the axial direction; collecting nip profile information for the spreader nip; and applying pressure control via a pressure control unit to adjust an internal pressure of the single pressure cavity in the pressure roll to modify a nip profile for the spreader nip based on the collected nip profile information.