Ink jet head, ink jet apparatus and driving method therefor

Details Ink jet head, ink jet apparatus and driving method therefor Ink jet head, ink jet apparatus and driving method therefor

1995-09-13

1998-04-28

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Controller

347 65, 347 94, B41J 2055

Patent

active

057451290

ABSTRACT:
An ink jet head has plural liquid ink paths, each having a discharge opening for discharging ink when energy is applied to ink in a corresponding ink path, and a common ink chamber communicating with an end of each ink path for supplying ink to the discharge openings. The discharge openings are disposed in plural groups, which are consecutively driven by simultaneously applying energy to ink paths corresponding to selected discharge openings in a given group. The ends of the ink paths are disposed in the common ink chamber in groups consecutively arranged in accordance with the driving order of the discharge opening groups, and each ink path includes a portion proximate to that end which is directed away from the next consecutively arranged ink path group. This arrangement suppresses pressure interference between the consecutively driven discharge opening groups and enables high-quality, high-speed recording in a compact recording head.

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