Patent ID: 9138982
Filing Date: 2015-09-22
Classification: B41F

Abstract:
1. An digital lithographic image forming system, comprising: an image member having a reimageable surface forming a different image on each rotation of the image member; a keyless inking unit for metering ink onto the reimageable surface, the keyless inking unit comprising a plurality of heater elements positioned adjacent to each other across a width of the image member, a temperature of each of the plurality of heater elements being adjusted to control an ink feed in each of a plurality of individual ink bath zones associated respectively with each of the plurality of heater elements, each of the plurality of individual ink bath zones forming a sub-image into which the different image is divided in a cross process direction; a pixel counter that counts a number of pixels to be imaged with ink in each sub-image over a look-ahead time, determines a running pixel count of the each sub-image and stores pixel count information in a memory; a feedforward controller that a separate feedback controller that modifies the control function in accordance with an inker dynamic model for the digital lithographic image forming system.