Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2009-02-11
2011-11-29
Fidler, Shelby (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S011000, C347S019000
Reexamination Certificate
active
08066345
ABSTRACT:
A method for setting up a condition for a drive signal in a liquid ejection head that includes a plurality of linearly-arranged nozzles and driving elements provided for each of the nozzles, includes: calculating an average value or a median value of ejection rates for each nozzle relating to a supply of the drive signal under a plurality of conditions; classifying the plurality of nozzles into a plurality of groups based on the average value or the median value of the ejection rates; calculating a proper condition for the drive signal corresponding to each group based on a statistical value of the ejection rate relating to the group; and selecting one proper condition among proper conditions corresponding to the groups so as to set the selected proper condition for each nozzle.
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Hiruma Kei
Igarashi Toru
Imai Takahiro
Ito Takeshi
Katagami Satoru
Fidler Shelby
Harness & Dickey & Pierce P.L.C.
Seiko Epson Corporation
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