Brother International MFC-7050C Service Manual - Page 20

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(2) Head capping and cleaning with head wipers Shown below are head capping and cleaning mechanisms. Upon completion of printing, the carrier travels rightwards to the home position and moves the head cap lever of the head cap unit to the right, bringing the head cap unit up to the position where the head caps come into tight contact with the print heads. Capping the nozzles of the print heads this way prevents them from drying up or becoming dirtied with dust when they are not in use. If the carrier travels to the left for printing, the head cap unit goes down to the previous position with the springs. The above head capping mechanism moves also the head wiper unit up. When the carrier travels to the left, the wipers clean ink remaining on the head surfaces and then the carrier's boss presses the wiper release lever to return the wiper unit down to the previous position. Head capping Carrier ASSY Head caps I III Head wipers Boss on the carrier 0 Head cap lever Maintenance ASSY "a": Head cap unit guides "b": Wiper unit guides Cleaning with head wipers ff ( ss• Wiper release lever III - 9

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(2)
Head
capping
and
cleaning
with
head
wipers
Shown
below
are
head
capping
and
cleaning
mechanisms.
Upon
completion
of
printing,
the
carrier
travels
rightwards
to
the
home
position
and
moves
the
head
cap
lever
of
the
head
cap
unit
to
the
right,
bringing
the
head
cap
unit
up
to
the
position
where
the
head
caps
come
into
tight
contact
with
the
print
heads.
Capping
the
nozzles
of
the
print
heads
this
way
prevents
them
from
drying
up
or
becoming
dirtied
with
dust
when
they
are
not
in
use.
If
the
carrier
travels
to
the
left
for
printing,
the
head
cap
unit
goes
down
to
the
previous
position
with
the
springs.
The
above
head
capping
mechanism
moves
also
the
head
wiper
unit
up.
When
the
carrier
travels
to
the
left,
the
wipers
clean
ink
remaining
on
the
head
surfaces
and
then
the
carrier's
boss
presses
the
wiper
release
lever
to
return
the
wiper
unit
down
to
the
previous
position.
Head
capping
Carrier
ASSY
I
Head
caps
Boss
on
the
carrier
III
0
Head
wipers
Head
cap
lever
Maintenance
ASSY
"a":
Head
cap
unit
guides
"b":
Wiper
unit
guides
Cleaning
with
head
wipers
ff
(
ss
•
Wiper
release
lever
III
-
9