Brother MFC-7450

App. 3-3
Confidential
■ Laser unit serial label
<How to Read>
Fig. App. 3-4
<Location>
Fig. App. 3-5
LUS Model distinction Y delay
X delay
Serial number
Frame manufacturer
and mold distinction
T1 the 1st mold
Y3 the 3rd. mold
Polygon motor distinction Inspection machine
Serial label
Drive sub ASSY
<Front side>
Drive sub ASSY
Serial label
Serial label
Laser unit
2 to 10mm