Ink jet printing apparatus with two different jet spacings

Details Ink jet printing apparatus with two different jet spacings Ink jet printing apparatus with two different jet spacings

1979-04-19

1980-07-29

Miller, Jr., George H.

Recorders

Record receiver deforming

346140R, G01D 1518

Patent

active

042153506

ABSTRACT:
Apparatus for applying characters to packages or other objects advanced through a marking station. The characters, which each consist of a pattern of points or spots, are applied by the discharge of ink onto the object from a plurality of nozzles arranged in a row extending transversally of the direction of advancement of the object. Each of the nozzles is connected through a solenoid valve to a source of pressurized ink. The solenoid valves are controlled by a pattern generator which at predetermined intervals selects solenoid valves to be activated and causes a simultaneous opening pulse to be supplied to the solenoid valves selected. The height of the characters can be varied by means of switch means whereby one or the other of two groups of solenoid valves, corresponding to two groups of nozzles in said row, is rendered available for the selection. One of said groups of nozzles is composed of every second nozzle of the other row and additional nozzles arranged with a pitch equal to twice the pitch of the nozzles of the other row.

REFERENCES:
patent: 3964591 (1976-06-01), Hill et al.
patent: 4050077 (1977-09-01), Yamada et al.
patent: 4087825 (1978-05-01), Chen et al.
patent: 4115787 (1978-09-01), Fujimoto et al.
patent: 4115788 (1978-09-01), Takano et al.
Pelkie, R. E. et al, Ink Jet Head, IBM Technical Disclosure Bulletin, Jul. 1977, vol. 20, No. 2, pp. 553-554.

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