Appeal No. 2002-1838
Application 09/631,765
comprises a porous member, such as a polyurethane foam, impregnated
with a silicone copolymer paste, and a rigid member with a
supporting base on which the porous member is mounted, such as
cardboard. According to appellants, their assembly is an
inexpensive and effective means for removing toner which has leaked
in the printing device before it can accumulate in the printing
device and result in poor image quality.
Claims 17 through 19 are believed to be adequately
representative of the appealed subject matter and are reproduced
below for a more facile understanding of the claimed invention:
Claim 17. An assembly for cleaning a toner resin from
components of a printing device, comprising:
a porous member impregnated with a paste comprising a silicone
copolymer, and
a rigid member with a supporting base on which said porous
member is mounted.
Claim 18. The assembly as in Claim 17, wherein said silicone
copolymer has a polydimethylsiloxane moiety and an alkyl
substituted polydimethylsiloxane moiety.
Claim 19. The assembly as in Claim 17, wherein said silicone
copolymer has the formula
CH3 CH3
CH3 Si-O Si-O Si(CH3)3
CH3 x R y
2
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