Ink-jet printing apparatus

Details Ink-jet printing apparatus Ink-jet printing apparatus

1997-02-07

1999-06-29

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 5, B41J 2145, B41J 215, B41J 2938

Patent

active

059175206

ABSTRACT:
In the ink-jet printing apparatus, each nozzle is selected so that time differences of drive timings of adjacent nozzles become random in the entire ink-jet head. Thus, texture noise can be prevented and the picture quality can be improved. In this apparatus, when the time differences of drive timings of adjacent nozzles are 2T, T, 2T, 3T, and so forth, four nozzles in sixteen nozzles set to be enable in one scanning operation are selected in such a manner that time differences of drive timings of adjacent nozzles become random in the entire ink-jet head.

REFERENCES:
patent: 5448269 (1995-09-01), Beauchamp et al.
patent: 5675365 (1997-10-01), Becerra et al.

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