Ink Supply

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Patent Number

Description

WO 03022586

An ink supply system for a print head having the pressure at the nozzle controlled at a remote point, positioned in parallel with the print head, in the fluid circuit.

WO 0024584

A print head having a drive circuit for supplying the electrical signals to the actuator and a conduit for supplying droplet fluid to the actuator. The drive circuit is mounted in thermal contact with the conduit so as to transfer heat generated in the drive circuit to the droplet fluid to aid efficient thermal management of the print head.

WO 0038928

A print head with a fluid inlet manifold and a fluid outlet manifold and means for generating a fluid flow into the inlet manifold, through each chamber in the array, past the ejection nozzle and into the outlet manifold. The fluid flow through each chamber is sufficient to prevent foreign bodies in the fluid from lodging in the orifice. The resistance to flow of one of the inlet and outlet manifolds is chosen such that the pressure at a fluid inlet to any chamber in the array varies between any two chambers by an amount less than that which would give rise to significant differences in droplet ejection properties between these two chambers.