Appeal No. 96-3851
Application No. 08/341,849
As to claim 30, Vaughn discloses in the abstract "a four-
color liquid-ink printing system, so as to maximize use of
black ink while maintaining a minimum spacing between black
and color inks." Further, "[t]he input data is stored in CMY
bitmap color planes" and
data representing composite black is moved from the
color planes into a K plane (60) for printing by a
true black pen. The data is examined (66) to detect
any
black ink within the minimum spacing from color ink.
. . . Where a black block is detected adjacent a
color block, the spacing violation is corrected by
moving the corresponding block of data from the K
plane back into the color planes(166) for printing
as composite black.
In other words, Vaughn discloses printing both true black,
using black ink, and composite black, using color ink, for
different parts of the same image. Further, as indicated by
the discussion of the CMY and K bitmap color planes and by the
tables of Figures 8A and 8B, wherein 0's and 1's are used to
show whether or not a pixel has a color ink or black ink,
Vaughn discloses encoding color selection codes.
Appellant admits in the Declaration dated July 14, 1995,
in item 7 that in Vaughn (as one of the five patents
discussed) "an encoded image [is] received from a host
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