Patent ID: 9272523
Filing Date: 2016-03-01
CPC Classification: B41J

Claim Text:
1. An inkjet printer comprising: a printhead having a first port positioned towards a first end and a second port positioned towards an opposite second end; an ink container for supplying ink to the printhead, the ink container comprising a supply port and a return port; a first ink conduit interconnecting the supply port and the first port; a second ink conduit interconnecting the return port and the second port; an ink valve positioned in the first ink conduit for controlling ink flow between the ink container and the first port, wherein the first ink conduit has a first section between the ink container and the valve, and a second section between the valve and the first port; a first pump positioned in the second conduit; and a second pump having a second pump inlet connected to the first section and a second pump outlet connected to the second section.