Brother MFC-J220, Service Manual

Page: 272 / 537

6-79 Confidential
Maintenance unit
Note: If the maintenance unit does not need to be replaced, do not disconnect the main drain
tubes. Once disconnected, the tubes will become unusable and new parts will have to be put
back in. A spare maintenance unit is supplied together with two main drain tubes.
(2) Release the right end of the switching lever guide from the maintenance unit and remove it.
Assembling Notes:
• When mounting the switching lever guide on the maintenance unit, apply the specified
lubricant to the specified point, referring to Section 6.2 .
• When mounting the switching lever guide on the maintenance unit, put it on the CR
guide rail and then lightly press it.
(3) If the ink absorber box has not been removed, pull out the main drain tubes from the ink
absorber box.
Note: Pinch the ends of the main drain tubes with a clip in order to prevent drained ink
from leaking and the machine from getting stained with leaked ink.
(4) Remove the three screws in the order of
c
to
e
(as shown below) from the maintenance
unit and detach the maintenance unit from the engine unit.
Assembling Notes:
• When mounting the maintenance unit on the engine unit, fit the two bosses of the shaft
holder (on the left side of the maintenance unit) into the two holes under the CR guide
rail.
• When securing the maintenance unit with three screws, tighten these screws in the order
of
e
J
d
J
c
as shown below.
• When routing the cap lift cam switch harness, pass it through the cable guide on the
maintenance unit. (See the illustration below and on page 6-75 .)
CR guide rail
Switching lever guide
Taptite, cup B
M3x10
Maintenance unit
ASF motor/encoder
harness
Carriage motor harness
(Front)
CR support chassis
(6_76)
1
2
3
Remove these screws in the order of
to . Tighten them in the reverse order.
1
3
Apply grease
here.
Cap lift cam
switch harness
Cable guide