Appeal No. 1997-0214
Application 08/155,560
Appellants' reference in the brief to column 9 of Fukuchi
is correct but it is incomplete since it fails to consider the
logical operation of the control unit circuit diagram in
Figure 9. To the extent appellants' claimed exchange signal
forming means is said to be operative in accordance with the
logical OR gate as represented at page 6 of the brief and
argued at the top of page 9 of the brief, Figure 9 of Fukuchi
shows an identical circuit structure corresponding to the
claimed exchange signal forming means as the control unit in
this figure. The depicted (developer) replenishment detection
input signal (lower left of Figure 9) comprises the signal S'
exiting the Figure 5 showing in this reference. A similar
showing exits the signal for detecting replacement of the
process supplies in Figure 9 that is outputted in Figure 5 as
representative signal S to a logical OR gate feeding the
control unit, which in turn indicates through the respective
activation of lights L2 and L3 in Figure 8 (and the top left
portion of Figure 9)the need to replenish the toner and/or
replace the entire process supplies.
This logical OR operation is reflected in the discussion
at column 9, lines 62-66 and further described in accordance
5
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