Appeal No. 96-0515
Application 08/169,081
about 80EC to cause the adhesive 38 on surface 31 to adhere or
tack thereto without the adhesive moving completely into the
porous member (Spec. at 8, lines 5-8). The adhesive layer on
the porous member also closes all of one side of recess 30
except for a small portion in alignment with slot 35 of the
porous member, thereby forming a closed ink passageway from
the cartridge chamber 11 to the printhead nozzle 37 (Spec. at
8, lines 11-14). The printhead 14 and bonded heat sink 24, as
an assembly 46, are then aligned with and placed in contact
with the porous member (Spec. at 9, lines 3-6). The cartridge
housing 12 and the attached printhead and heat sink assembly
are cured in an oven, curing the thermosetting adhesive
material and causing it to migrate or diffuse through the
pores of the porous member 36 and establish good contact with
the printhead 14, thereby creating a direct bond between the
cartridge housing wall 25 and the printhead 14 and making the
porous member solid and impervious to air and ink (Spec. at 9,
line 29 to p.10, line 4). The printhead is also attached to
the cartridge by means of stake pins 40, whose ends are staked
to preform pin heads 41 (Spec. at 9, lines 16-18).
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Last modified: November 3, 2007