Appeal No. 1999-1652 Page 6
Application No. 08/758,369
through said ink inlet port and for receiving the
liquid ink from said ink chamber through said ink
outlet port.
Accordingly, claims 1-4 require an ink chamber having an inlet
port for receiving ink from an ink reservoir, a slit for
ejecting some ink, and an outlet port for returning the rest
of the ink to the reservoir.
The examiner fails to show a teaching or suggestion of
the limitations in the applied prior art. Tamura discloses an
ink
recording head for printing on recording paper. “The tip of
the recording head (1) where the slit-shaped ink splashing
opening (P) is formed is pointed so that the position
adjustment of the splashing ink is easier.” Tamura
Translation, p. 11. The recording head includes “an ink
keeper (4) which stores liquid ink (Q) in its bottom.” Id. at
11. “A shallow groove is formed ... from the ink keeper (4)
to the ink splashing opening (P) so that an ink passage (R)...
is formed.” Id. The ink passage necessarily includes an ink
inlet via which ink is fed from the ink keeper into the ink
passage on its way to the splashing opening for printing.
Although the ink passage includes an ink inlet, an ink outlet
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