Appeal No. 2001-2579 Page 12
Application No. 08/885,996
desirability of confirming the operating characteristics of a printer to ensure compatibility
between the printer and a hosting computer. Toward that more general teaching, we
find that the reference invites modifications to it embodiments. Specifically, "the
invention may be embodied with various changes, modifications and improvements,
which may occur to those skilled in the art. . . ." Col. 11, ll. 39-41.
For its part, AAPA discloses that CPUs in printers use different forms for storing
data, viz., a byte form, a word form, a long word form. (Spec. at 2.) For forms of two-
byte data, a high order type and a low order type are known. (Id.)2 AAPA also teaches
that a host computer "should transmit the print data to the printer according to the
characteristic of the CPU of each printer model." (Id.) Because Sasaki teaches the
desirability of confirming the operating characteristics of a printer to ensure compatibility
between the printer and a hosting computer, and AAPA teaches that CPUs in printers
use the aforementioned forms for storing data, we find that the combined teachings of
the references would have suggested confirming whether a printer uses a byte form, a
word form, or a long word form and, if the form comprises the word form, then whether
the form comprises a high order type or a low order type, to ensure compatibility
between the printer and a host computer such that the computer can transmit print data
2"The [a]ppellant does not argue the fact that above listed various data
processing forms are well known in the art. . . ." (Reply Br. at 11.)
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