Brother DCP-7055 Service Manual page 327

APPENDIX 1 SERIAL NUMBERING SYSTEM
Serial number labels for the machine itself
<How to Read>
<Location>
Serial number label
Serial number
* * * * * * A 0 J 1 1 1 1 0 1
Product
identification
code
Fig. App. 1-1
Fig. App. 1-2
App. 1-1
Serial number (6-digit)
Manufacturing factory No.
Year of manufacture
0: 2010
1: 2011
Month of manufacture
A : January E : May
B : February F : June
C : March G : July
D : April H : August
Serial number label
J : September
K : October
L : November
M : December
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