US 12,291,032 B2
Flow-through printhead
Nasser Budraa, La Crescenta, CA (US)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Nasser Budraa, La Crescenta, CA (US)
Filed on Feb. 16, 2023, as Appl. No. 18/110,826.
Prior Publication US 2024/0278560 A1, Aug. 22, 2024
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14233 (2013.01) [B41J 2002/14419 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A flow-through printhead comprising:
a plurality of jetting channels arranged in a first row and a second row generally in parallel along a length of the flow-through printhead, wherein each of the jetting channels includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid;
a first manifold and a second manifold fluidly coupled to the jetting channels in the first row; and
a third manifold and a fourth manifold fluidly coupled to the jetting channels in the second row, wherein
the first manifold and the second manifold are disposed on opposite sides of the first row with the second manifold disposed in an intermediate region between the first row and the second row;
the third manifold and the fourth manifold are disposed on opposite sides of the second row with the fourth manifold disposed in the intermediate region; and
the second manifold is disposed between the first row and the fourth manifold, and the fourth manifold is disposed between the second row and the second manifold.