Brother DCP-7030 Service Manual page 152

(2) Remove the Taptite cup S M3x6 SR screw, and then remove the FG harness ASSY from
the Laser unit.
(3) Remove the Taptite cup S M3x6 SR screw, and then remove the Air duct from the Laser
unit.
Taptite cup S M3x6 SR
Air duct
2
FG harness ASSY
CAUTION:
When replacing the Laser unit, replace the Serial label attached on the Drive sub ASSY
with the new one supplied with a new Laser unit. If an extra Serial label is supplied with a
new unit as spare. Make sure to throw the spare label away after replacing the Laser
unit, *** it is necessary to input the new Laser unit characteristics information.***
(Refer to "3. IF YOU REPLACE THE LASER UNIT" in Chapter
2 to 10mm
Serial label
3
Fig. 3-74
Drive sub ASSY
Fig. 3-75
3-74
Laser unit
4.)
Serial label
Drive sub ASSY
Confidential