Ink-jet printer

Details Ink-jet printer Ink-jet printer

2008-06-24

2008-06-24

Nguyen, Lam S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S011000, C347S012000

Reexamination Certificate

active

07390070

ABSTRACT:
An ink-jet printer including: an ink-jet head in which are disposed a plurality of nozzles that are divided into a plurality of nozzle groups; a plurality of actuators which are provided to respectively correspond to the plurality of nozzles and which are divided into a plurality of actuator groups respectively corresponding to the plurality of nozzle groups; a plurality of drive circuits which are provided respectively for the plurality of nozzle groups and each of which outputs a drive signal used for ejecting an ink, to the plurality of actuators of a corresponding one of the plurality of actuator groups; a controller which controls the ink-jet printer to perform printing such that, by driving any of the plurality of actuators which are determined on the basis of print data, the ink is ejected, toward a recording medium, from any of the plurality of nozzles that correspond to said any of the plurality of actuators; and an adjusting portion which adjusts the drive signal to be outputted from each of the plurality of drive circuits to reduce variation in an ink-ejection property among the plurality of nozzle groups.

REFERENCES:
patent: 5353051 (1994-10-01), Katayama et al.
patent: 5896146 (1999-04-01), Murata et al.
patent: 5969730 (1999-10-01), Inose et al.
patent: 6290333 (2001-09-01), Wade et al.
patent: 2005/0062804 (2005-03-01), Eaton
patent: A-8-258292 (1996-10-01), None
patent: B2-3174228 (2001-03-01), None

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