Appeal No. 97-3926
Application 08/481,091
is cleaned more often than the capstan (Spec. at 12, lines 2-
9).
We note that although numeral 16 in Figures 1 and 2
appears to designate the drum rather than the unnumbered heads
which are carried by the drum, the specification explains (at
8, lines 14-17) that "head 16 refers to all of the heads,
whether video, audio, erase, or otherwise, regardless of the
type of head and whether a plurality of heads are included on
a single drum or head assembly."
B. The claims
The independent claims, i.e., claims 35 and 38, are
reproduced below:
35. A method of using a cleaning cassette having tape
with scrubbing material and magnetic material prerecorded with
audio sounds and video images which, when the cleaning
cassette is inserted into the VCR, convey instructions to an
operator for using the cleaning cassette, wherein a first set
of instructions is repeated serially in segments to form a
plurality of first sets of instructions, each of which is used
in a separate cleaning episode, and after the last repeated
segment having the first set of instructions a different
second set of instructions is conveyed, wherein the magnetic
material and the scrubbing material are located in the same
length of tape portion to permit simultaneous head cleaning
and playing of recorded signals, wherein the method comprises
the steps of:
inserting the cleaning cassette into the VCR and playing
the tape for one entire first set of instructions; and
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