Patent ID: 7455386
Filing Date: 2008-11-25
Classification: B41J

Abstract:
1. A method of flushing a nozzle of an inkjet recording head so as to recover an ink-ejection performance of the nozzle, the nozzle ejecting, 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 comprising: causing the inkjet recording head to perform a first series of continuous flushing actions, in each of which action the nozzle attempts to eject a droplet of the ink whose volume is larger than a smallest volume of the plurality of volumes that are used in the recording mode, and causing the inkjet recording head to repeat at least one more series of the continuous flushing actions while interposing a pause time between each pair of consecutive series out of the first series and said at least one more series.