Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2007-11-02
2009-12-29
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S015000, C347S019000
Reexamination Certificate
active
07637583
ABSTRACT:
A liquid-jet head selectively forms a large dot or a small dot. The large dot is ejected when a plurality of pulse signals are selected, and the small dot upon selection of a smaller number of the pulse signals. There is a contraction of the pressure generating chamber to eject a droplet through the nozzle, and a vibration damping step. The drive waveforms are set to implement this approach, and have particular characteristics.
REFERENCES:
patent: 2001/0022595 (2001-09-01), Takahashi et al.
patent: 2001/0028370 (2001-10-01), Takahashi
patent: 2002/0036669 (2002-03-01), Hosono et al.
patent: 2003/0234826 (2003-12-01), Hosono et al.
patent: 2008/0266340 (2008-10-01), Williams et al.
patent: 10-81012 (1998-03-01), None
patent: 10-250061 (1998-09-01), None
Fidler Shelby
Luu Matthew
Seiko Epson Corporation
Sughrue & Mion, PLLC
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