Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2008-07-08
2008-07-08
Shah, Manish S. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Controller
C347S019000, C358S001900, C358S518000, C358S517000
Reexamination Certificate
active
10752304
ABSTRACT:
The conventional print-controlling apparatus performs printing with CMY inks and additional inks having a lower lightness than CMY inks, which are mixed in a specific ratio when ejected from the print head, so that colors in the entire range from low to high lightness are expressed. Unfortunately, chromatic color inks differing in hue from CMY inks have a low lightness or a high density, and this leads to poor granularity in the region of high lightness. This disadvantage is eliminated if color conversion is accomplished by using the granularity improvement LUT15cthat limits the deposition of RV inks. In this way it is possible to limit the ejection of RV inks in the region of high lightness and to improve the ink granularity in the region of high lightness.
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Yamazaki Satoshi
Yoshizawa Koichi
Martin Laura E
Shah Manish S.
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