Patent ID: 6397745
Filing Date: 2002-06-04
Classification: B41F,Y10T

Abstract:
An offset printing press comprising:an ink train for applying a thin film of ink to a printing plate; an elongated ink fountain including a fountain roller and a blade for holding a supply of ink, said ink fountain in fluid communication with said ink train; and an ink management system comprising: a linear support extending across said elongated ink fountain; a cartridge storing viscous offset printing ink having an exit opening in one end through which ink is dispensed, an open end opposite said exit opening and a movable member disposed within said ink cartridge for displacing ink through the exit opening; a carriage for releasably holding said cartridge; means for moving said carriage along said linear support; means for applying force to said movable member, wherein said means for applying force displaces said movable member thereby dispensing ink through said exit opening; means for determining the amount of ink dispensed from said cartridge based on a measured displacement of the movable member during a known period in which ink is dispensed from said cartridge.