Patent ID: 7591528
Filing Date: 2009-09-22
Classification: B41J

Abstract:
1. A modular printhead assembly comprising: an elongate carrier; an elongate ink conduit positioned in the carrier and configured to feed ink along a length of the carrier; a plurality of printhead modules serially arranged along and engaged with the ink conduit, the ink conduit being in fluid communication with the printhead modules and each printhead module including a printhead integrated circuit for carrying out a printing operation; a pair of supports fastenable to respective ends of the carrier and between which the printhead modules are located; one or more capping mechanisms movable between a first position where the printhead integrated circuits are capped and a second position where the printhead integrated circuits are uncapped, the, or each, capping mechanism including ducts for ducting air into the printhead integrated circuits while in the second position, and cut off air supply to the printhead integrated circuits when in the first position; and a camshaft which is operatively engaged with the supports and extends between the supports and is arranged to move the, or each, capping mechanism between the first and second positions.