Patent ID: 8210651
Filing Date: 2012-07-03
Classification: B41J

Abstract:
1. A modular printhead comprising: a chassis; a plurality of printhead modules mounted in the chassis; a plurality of alignment mechanisms each corresponding to a respective printhead modules, each alignment mechanism interposed between the chassis and a respective printhead module and including a lever provided on a first side of a fulcrum point and a printhead module engagement plate coupled to the lever at a second side of the fulcrum point; a plurality of adjuster blocks corresponding to respective alignment mechanisms, each adjuster block engaged with respective levers via an aperture defined through each lever; and a plurality of adjustment mechanisms corresponding to respective adjuster blocks, each adjustment mechanism coupled to the chassis at one end and to a respective adjuster block at another end, wherein the lever and the printhead module engagement plate are formed as a unitary piece, and each alignment mechanism further includes a number of hinged arms facilitating linear and parallel movement of the engagement plate in a direction towards and away from adjacent printhead modules in response to operation of the adjustment mechanism, and the aperture is defined through the lever perpendicular to a major plane of the engagement plate.