Patent ID: 7651037

Claim:
Droplet deposition apparatus comprising: at least one droplet ejection unit comprising a plurality of elongate fluid channels disposed side by side in a row, said row extending in a first direction, each of said channels being elongate in a second direction substantially orthogonal to said first direction, a plurality of actuators, each of said actuators being associated with at least one of said channels, and a plurality of nozzles each having a nozzle axis extending in a third direction substantially orthogonal to the first and second directions, each of said actuators being actuable to eject a droplet of fluid from at least one of said fluid channels through a respective one of said nozzles in said third direction along the nozzle axis of that nozzle, said droplet ejection unit having an end face extending in both said first and third directions; a support member for said at least one droplet ejection unit; a first conduit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit for conveying droplet fluid away from each of the fluid channels of said at least one droplet ejection unit, and wherein an interconnector comprising a plurality of conductive tracks is formed on said end face, said interconnector electrically connecting each of said actuators to a drive circuit.