Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2008-01-22
2008-01-22
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S006000, C347S009000
Reexamination Certificate
active
07320509
ABSTRACT:
An inkjet apparatus100includes a plurality of nozzles200, a plurality of piezoelectric elements204, a drive voltage generator406and a plurality of switches403. The plurality of piezoelectric elements204is provided in one-to-one correspondence with the plurality of nozzles200. The drive voltage generator406generates a drive voltage having a waveform Vd. Each switch403adjusts the waveform Vd of the drive voltage. Each of the plurality of piezoelectric elements204applies pressure to a corresponding nozzle200to eject ink droplets therefrom in response to the drive voltage having an adjusted waveform Vd.
REFERENCES:
patent: 2003/0103095 (2003-06-01), Imai
patent: 2003/0142160 (2003-07-01), Kobayashi et al.
patent: 04-316851 (1992-11-01), None
patent: 09-011547 (1997-01-01), None
patent: 2002-273890 (2002-09-01), None
Kida Hitoshi
Kobayashi Shin'ya
Yamada Takahiro
Lebron Jannelle M.
Luu Matthew
Ricoh Printing Systems Ltd.
Whitham Curtis Christofferson & Cook, P.C.
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