Brother International DCP-1400 Service Manual - Page 80

Disconnect

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1.17 Laser Unit (1) Remove screw "a" and take off the harness cover. (2) Remove two screws "b." (3) Disconnect the polygon motor harness and laser flat cable from the laser unit. (4) Lift up the laser unit. NOTE: When handling the laser unit, take care not to touch the inside of the unit, glass, or mirror. NOTE: On the small PCB in the laser unit is a 2-pin connector which is for the adjustment in the factory. Do not disturb it. Laser unit Adhesive tape "b" Polygon motor A harness "b" Laser flat cable ., • c 1';"' /' ► \ •5;-.; Harness cover Polygon motor harness Adhesive tape ,2? -a] O Main chassis Glass (Do not touch here.) 0 0 O 0 (Front) "a" and "b": Taptite, cup S M3x16 • Reassembling Notes • Before putting the laser unit back into place, check for any toner particles, paper dust or dirt, and clean them out. • After routing the polygon motor harness and laser flat cable, tape them onto the laser unit as shown above. IV - 36

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1.17
Laser
Unit
(1)
Remove
screw
"a"
and
take
off
the
harness
cover.
(2)
Remove
two
screws
"b."
(3)
Disconnect
the
polygon
motor
harness
and
laser
flat
cable
from
the
laser
unit.
(4)
Lift
up
the
laser
unit.
NOTE:
When
handling
the
laser
unit,
take
care
not
to
touch
the
inside
of
the
unit,
glass,
or
mirror.
NOTE:
On
the
small
PCB
in
the
laser
unit
is
a
2
-pin
connector
which
is
for
the
adjustment
in
the
factory.
Do
not
disturb
it.
Laser
unit
"b"
Adhesive
tape
Polygon
motor
A
harness
"b"
Laser
flat
cable
Adhesive
tape
,2?
-
a]
Main
chassis
Harness
cover
.,
•
.
1
';"'
c
Polygon
motor
harness
/'
►
--
-:
:--
:-,:"-:::*
\
•5.
-
;;
O
0
0
(Front)
0
O
Glass
(Do
not
touch
here.)
"a"
and
"b":
Taptite,
cup
S
M3x16
•
Reassembling
Notes
•
Before
putting
the
laser
unit
back
into
place,
check
for
any
toner
particles,
paper
dust
or
dirt,
and
clean
them
out.
•
After
routing
the
polygon
motor
harness
and
laser
flat
cable,
tape
them
onto
the
laser
unit
as
shown
above.
IV
-
36