A printhead carriage for an ink jet printer having a plurality of printhead stalls therein and a printhead holddown cover having spring biased printhead holddown plungers on the underside of the cover and equal volume fluid passageways in the cover for conducting fluid from fluid inlets on said cover...http://www.google.com.mx/patents/US6190007?utm_source=gb-gplus-sharePatent US6190007 - Apparatus for delivering fluid to an ink jet printhead mounted on a moveable printer carriage
