Patent ID: 6244697
Filing Date: 2001-06-12
Classification: B41J

Abstract:
A filter tower structure for an ink jet printer which comprises a filter tower attached to a printhead carrier between the carrier and an ink reservoir for feeding filtered ink from the reservoir to an ink jet pen, the filter tower comprising a conduit having a first open end, a conduit second end, and an interior in flow communication with the ink reservoir and the pen, the conduit second end being closed by a filter media material, and a tube, having a first end located substantially adjacent to the filter media material, in flow communication with the interior of the conduit and having a first end, the first end of the tube being located substantially adjacent to the filter media material and a tube second end in flow communication with a vacuum source, wherein activation of the vacuum source results in the application of a reduced pressure to the interior of the conduit such that air or gas bubbles are caused to flow into the tube from the conduit and ink from the reservoir is caused to flow into the conduit.