Brother HLL3290CDW Service Manual page 234

(6) Close the Top cover and Manual feed slot or MP cover ASSY.
(7) Push the FB lock lever to open the Document scanner unit.
(8) Release the First side CIS flat cable, the Second side CIS flat cable, and the Panel flat
cable from the securing fixtures.
(9) Release the Joint parts of Pull arm L from the Pull arm hinge to remove it from the Pull
arm guide. Release the Joint parts of Pull arm R from the Pull arm hinge to remove it from
the Pull arm guide.
(10) Remove each Pull arm spring from the Pull arm L and the Pull arm R.
(11) Open the Document scanner unit approximately 30 degrees to remove it upward. Pull out each
Flat cable, each Harness, and each FG ground wire through each Hole of the Top cover.
Pull arm hinge
Approx. 30°
Holes
Pull arm spring
Pull arm L
Harness routing: Refer to
Assembling Note:
• If you replaced the Document scanner unit, refer to
UNIT, FIRST SIDE CIS UNIT, SECOND SIDE CIS UNIT OR DOCUMENT SCANNER
UNIT" in Chapter 4
Joint part of Pull arm L/R
FB lock lever
Fig. 3-22
"1. Left side of the machine (ADF unit, Document scanner
2. Top side of the machine (ADF unit, Document scanner unit, Modem
to configure settings.
3-43
Document scanner unit
Pull arm spring
Top cover
Pull arm guides
"5. IF YOU REPLACE THE ADF
Pull arm R
Pull arm guide
Pull arm R
Manual feed slot or
MP cover ASSY
unit),
unit)".
Confidential