Appeal No. 96-3950
Application No. 08/131,056
finding anticipation. See Verdegaal Bros., Inc. v. Union Oil
Co., 814 F.2d 628, 631-33, 2 USPQ2d 1051, 1052-54 (Fed. Cir.),
cert. denied, 484 U.S. 827 (1987).
Appellants have responded (Reply Brief, page 15) with
the argument that the storing of bit map data in the "option
1" mode of Dennis in any memory of printer 218 would destroy
the purpose of Dennis which is to achieve the most efficient
manner of printing. We are not persuaded. We note in general
terms that printers inherently require the use of buffers to
temporarily store print data until the print mechanism can
reproduce the data on to a printed page. While we agree with
Appellants that the purpose of the "option 1" mode in Dennis
is to achieve efficiency in printing, which is accomplished by
removing the rasterization process from the printer
controller, this would not necessarily eliminate the need for
buffering that any print mechanism requires. In our view, in
the "option 1" mode in Dennis as illustrated in Figure 4, the
serializable compressed bit map data received at the printer
from the host would necessarily be passed through a buffer
before being decompressed as part of the serialization process
and presented to print engine 226.
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