Appeal No. 2000-0154 Page 10
Application No. 08/942,954
Because Naeser discloses using a preheating saddle only
for single-sided printing, col. 4, ll. 23-24 (“[t]he data
carrier has toner images applied to one side thereof. . . .”),
it cannot overcome Sugaya’s express teaching away. Relying on
Yaguchi merely to teach “a film of PTFE,” (Examiner's Answer,
¶ 10), moreover, the examiner fails to allege, let alone show,
that the tertiary reference overcomes the express teaching
away.
Because Sugaya teaches away expressly from using a
preheating saddle in duplex printing, we are not persuaded
that the teachings from the applied prior art would have
suggested the limitations of "a heat transfer fixing station
for fixing a first toner image on a first side of a recording
medium by direct heating thermal contact between the recording
medium and at least one heating roller; a heat transfer fixing
station for fixing a second toner image on a second side of
the recording medium facing opposite the first side by direct
heating thermal contact between the recording medium and at
least one heating roller; a pre-heating saddle along a running
direction of the recording medium for preheating the recording
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