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US 4,284,993 AGranted
Multi-nozzle head for ink jet printer with ink supply pipe in ink chamber
AssigneeRicoh Company, Ltd.
InventorSadao Kakeno
Life of this patent
Estimating the term…
Abstract
An ink jet head comprises a nozzle unit having a plurality of nozzles and a vibration unit having vibrating plates opposite to the nozzles. One or more ink distributing pipes having a plurality of ink outlets are arranged in parallel with the rectilinear nozzles, whereby the ink under uniform pressure is applied from the ink outlets of one or more pipes to the nozzles and the ink drops in the same size are jetted from the nozzles respectively.
Claims8
A multi-nozzle head for an ink jet printer comprising
- (a) a nozzle unit provided with nozzles spaced in a line from each of which the ink is jetted,
- (b) a vibration unit having a vibrating plate on which vibration elements are mounted opposite to said nozzles,
- (c) a chamber forming between a front wall provided with said nozzles of the nozzle unit and said vibrating plate,
- (d) at least one distributing pipe having a plurality of ink outlet ports arranged in parallel with the line of said nozzle in said chamber, said distributing pipe being connected to a supply pipe.
1 more element
Dependencies are inferred from the claim text.