Liquid ejection apparatus and method of controlling the same

Details Liquid ejection apparatus and method of controlling the same Liquid ejection apparatus and method of controlling the same

2007-12-04

2007-12-04

Hsieh, Shih-Wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S029000, C347S030000, C347S035000

Reexamination Certificate

active

11081834

ABSTRACT:
A liquid ejection head is caused to eject liquid droplets at a region where no target medium is placed, such that such that a first prescribed number of liquid droplets are flushed from each of the nozzle orifices in the nozzle arrays of the first group, and a second prescribed number of liquid droplets are flushed from each of the nozzle orifices in the nozzle arrays of the second group. At least a part of the first prescribed number of liquid droplets and at least a part of the second prescribed number of liquid droplets are flushed by alternately performing a first unit operation for flushing a third prescribed number of liquid droplets which is smaller than the first prescribed number and a second unit operation for flushing a fourth prescribed number of liquid droplets which is smaller than the second prescribed number.

REFERENCES:
patent: 5428380 (1995-06-01), Ebisawa
patent: 8-156281 (1996-06-01), None
patent: 9-183233 (1997-07-01), None
patent: 10-181047 (1998-07-01), None
patent: 10-258523 (1998-09-01), None

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