A carrier adapted to receive a plurality of printhead dies includes a substructure having a fluid manifold defined therein and a substrate mounted on the substructure, wherein the substrate is adapted to support the printhead dies. The substructure includes a fluid port communicating with the fluid manifold...http://www.google.es/patents/US6799827?utm_source=gb-gplus-sharePatente US6799827 - Flush process for carrier of printhead assembly