Appeal No. 2001-1773
Application No. 08/732,864 Page 9
parameters are provided to the inkjet printer by the printer
driver, upon power up (col. 2, lines 29-41). If it is determined
by the manufacturer that the parameters require modification, the
manufacturer must issue a printer driver update and supply the
update to previous and current customers (col. 2, lines 42-45).
Bullock discloses in the summary of the invention that the
apparatus is adapted to receive a replacement ink cartridge that
enables a direct substitution of the memory without requiring
changes to the interface between the cartridge and the connectors
which mate the cartridge with the apparatus (col. 3, lines 25-
41). Referring to figures 4 and 5, ink jet print cartridge 60
includes an internal reservoir 62. Receptacle 66 receives ink
from cartridge 60. A serial memory chip 76 enables input/output
of data over a single access wire. Keying features 80 on
cartridge 60 mate with keying features on receptacle 66.
Receptacle 66 is fluidically connected to an ink jet pen 82 via a
conduit 84. Microprocessor 86 controls operation of the ink jet
printer, in accordance with various parameters derived from a
printer driver (col. 6, lines 5-27). Parameters include an
algorithm which enables the amount of ink used and remaining to
be determined (col. 6, lines 26-38). The parameter controlling
prewarm current enables control of drop volume variations which
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