Patent ID: 8876267
Filing Date: 2014-11-04
Classification: B41J

Abstract:
1. A printing system comprising: an ink supply comprising a plurality of ink containers and a plurality of accumulator reservoirs, each accumulator reservoir having an inlet connected to a respective ink container, an outlet and a return port; a plurality of feed lines, the outlet of each respective accumulator reservoir having a respective one of the feed lines coupled thereto; a plurality of return lines, the return port of a respective accumulator reservoir having a respective one of the return lines coupled thereto; a plurality of printheads, each printhead having nozzles for ejecting ink, a first port coupled to each of the feed lines and a second port coupled to each of the return lines; wherein each of the accumulator reservoirs comprises a fluid level regulator for maintaining fluid levels in the reservoir within a controlled fluid level range; and wherein the plurality of accumulator reservoirs are mounted at a fixed elevation relative to the nozzles such that hydrostatic fluid pressure at the nozzles is maintained within a predetermined range.