Impulse ink jet print head with inclined and stacked arrays

Details Impulse ink jet print head with inclined and stacked arrays Impulse ink jet print head with inclined and stacked arrays

1986-01-30

1987-10-27

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346145, G01D 1518

Patent

active

047033339

ABSTRACT:
An impulse ink jet print head of the type in which a plurality of plates are held together in a superposed relationship to form an array. Nozzles for ejecting ink droplets towared a printing surface are located near an of the array and have axes which extend transversely to the planes of the plates. A frame holds a plurality of the arrays in a shingled relationship inclined with respect to the printing surface. The axes of the nozzles are all parallel. They are inclined in the direction of movement of the printing surface and at an angle from a perpendicular to the receiving surface whose sine is the ratio of the velocity of the printing surface divided by droplet velocity. With this arrangement, the droplets are travelling relatively in a direction perpendicular as they strike the printing surface. Furthermore, so long as the ratio of the velocities of the printing surface and of the droplets remains constant, accuracy of placement of the ink droplets on the printing surface is assured regardless of the distance between the nozzle and the receiving surface.

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