Appeal No. 1999-0344
Application 08/250,770
With respect to appellant’s admitted prior art Figure 1, it is stated at the bottom
of page 9 of the specification as filed that the bias voltage generator unit 70 had the
adjusting terminal for adjusting the bias of that circuit. The adjusting terminal was
stated to be well known as a print density select switch on the control panel.
On the other hand, whereas appellant’s admitted prior art Figure 1 shows
a clock generator 40 and a dividing unit 50 to feed clocking signals to the data
transmitting unit 10, appellant utilizes a selectable first and second divider circuit in
Figure 3 in part controlled by the mode selector and the data coming in on the bus to
the left of that figure. Additionally, the chopping unit 100 has been added between the
data transmitting unit 10 and the print control unit 20 as shown in Figure 3 as compared
with the prior art Figure 1. As stated in the paragraph bridging pages 3 and 4 of our
original opinion, Figure 1 does not teach at all the claimed chopping means operating in
accordance with the second clock signal, where the chopping means in turn causes the
printing control means to be responsive to that data generated by the chopping means
clause of claim 1. However, it is noted that we did state that the bulk of the subject
matter of independent claim 1 on appeal was shown in prior art Figure 1 including the
data transmitting means clause, substantially all of the printing control means clause
3
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