Ink-jet printhead for high resolution printing and method for op

Details Ink-jet printhead for high resolution printing and method for op Ink-jet printhead for high resolution printing and method for op

1997-10-08

1999-08-24

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 41, 347 43, B41J 304, B41J 221

Patent

active

059430729

ABSTRACT:
The printhead according to the present invention is mechanically and electrically interchangeable on an ink jet dot printer with a known head, from which it differs substantially by having a different geometrical disposition of the nozzles, arranged in two parallel vertical rows at a constant pitch of 1/150.sup.th of an inch, where the corresponding nozzles of the two rows are staggered by 1/1600.sup.th of an inch in order to allow printing with a definition of at least 600.times.600 dots/inch by performing two consecutive print passes spaced apart by a line feed movement of value equal to 1/300.sup.th of an inch.

REFERENCES:
patent: 5109239 (1992-04-01), Cobbs et al.
patent: 5570118 (1996-10-01), Rezanka et al.

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