Brother International FAX-170 Service Manual - Page 25

Brother International FAX-170 Manual

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The cutter gear (Q) is a two-stepped gear whose inside gear is a one-tooth sector gear. While the cutter gear (Q) rotates by one turn for one stroke of the upper blade of the cutter, the one-tooth sector gear slightly turns the platen gear (H) clockwise via the reverse gear (I) to feed the recording paper back into the equipment. This prevents the upper blade of the cutter from scratching the leading edge of the remaining paper. I (Reverse gear) 0 One-tooth sector gear Q (Cutter gear) III -13

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The
cutter
gear
(Q)
is
a
two-stepped
gear
whose
inside
gear
is
a
one
-tooth
sector
gear.
While the
cutter
gear
(Q)
rotates
by
one
turn
for
one
stroke
of
the
upper
blade
of
the
cutter,
the
one
-tooth
sector
gear
slightly
turns
the
platen
gear
(H)
clockwise
via
the
reverse
gear
(I)
to
feed
the
recording paper
back
into
the
equipment.
This
prevents
the
upper
blade
of
the
cutter
from
scratching
the
leading
edge
of
the
remaining
paper.
I
(Reverse
gear)
0
One
-tooth
sector
gear
Q
(Cutter
gear)
III
-13