Brother FAX-2840 Service Manual page 270

APPENDIX 1 SERIAL NUMBERING SYSTEM
Serial number labels attached on the machine (2 locations)
<How to Read>
<Location>
Serial number label
Serial number
Product
identification
code
Fig. App. 1-1
Serial number label
Fig. App. 1-2
App. 1-1
Serial number (6-digit)
Manufacturing factory No.
Year of manufacture
2: 2012
3: 2013
Month of manufacture
A : January E : May
B : February F : June
C : March G : July
D : April H : August
Manufacturing line
J : September
K : October
L : November
M : December
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