Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2011-03-08
2011-03-08
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S011000
Reexamination Certificate
active
07901034
ABSTRACT:
In an image forming device including a liquid discharge head in which nozzles for discharging liquid drops are arranged side by side, a drive waveform generating unit generates, within a single drive cycle, a first drive waveform containing a drive signal to discharge an amount of liquid drop used for image formation, and a second drive waveform containing a drive signal to discharge an amount of liquid drop smaller than a minimum discharge drop amount used for image formation. A head control unit causes the liquid discharge head to discharge the amount of liquid drop used for image formation in accordance with the first drive waveform for a region where an image is formed, and to discharge the amount of liquid drop smaller than the minimum discharge drop amount in accordance with the second drive waveform for a region where any image is not formed.
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Nov. 18, 2010 European search report in connection with counterpart European patent appilication No. 07832223.
Cooper & Dunham LLP
Fidler Shelby
Luu Matthew
Ricoh & Company, Ltd.
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