Inkjet-recording-head flushing method

Details Inkjet-recording-head flushing method Inkjet-recording-head flushing method

2006-02-24

2008-11-25

Hsieh, Shih-wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S029000, C347S030000, C347S032000, C347S010000

Reexamination Certificate

active

07455386

ABSTRACT:
A method of flushing a nozzle of an inkjet recording head so as to recover an ink-ejection performance of the nozzle. The nozzle ejects, in a recording mode of the inkjet recording head, a plurality of droplets of an ink to record dot images, such that each of the droplets has an arbitrary one of a plurality of volumes. The flushing method includes causing the inkjet recording head to perform, for a first time, a plurality of continuous flushing actions in each of which the nozzle attempts to eject a droplet of the ink whose volume is larger than a smallest volume of the plurality of volumes, and causing the inkjet recording head to repeat, at least one more time, the plurality of continuous flushing actions while interposing a pause time between each pair of consecutive times out of the first time and said at least one more time.

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