Appeal No. 97-2720 Page 10
Application No. 08/354,387
parallel guide plates 67 which horizontally extend from the
discharging
rollers 32, a pair of first parallel movable guide plates 68
which are respectively pivoted on the extended ends of the
guide plates 67, a pair of parallel guide plates 70 which are
integrally formed with the movable unit 69 and extend from the
unit 69 towards the discharging rollers 32, and a pair of
second parallel movable guide plates 71 which are respectively
pivoted on the extended ends of the guide plates 70. The
first guide plates 68 are slidably fitted into the second
guide plates
71. Therefore, the movable guide 65 contracts or extends
while it swings upward or downward in response to the upward
or downward movement of the movable unit 69.
In applying the above-noted test for obviousness, we
reach the conclusion that it would have been obvious to one of
ordinary skill in the art at the time the invention was made
to have provided the sheetpath of DuBois with telescoping
sheet guide as suggested by Watanabe's movable telescoping
guide 65 to provide precise passage of a sheet over the
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