■Toner cartridge and Drum unit serial label (in common) <How to read>

Month of manufacture

 

 

 

 

 

 

A : January

E : May

J : September

B : February

F : June

K : October

C : March

G : July

L : November

D : April

H : August

M : December

Year of manufacture

7:2007

8:2008

Assembly line number

Serial number (6-digit)

Toner filling amount (A to D, 5) Manufacturing factory No.

Fig. App. 1-5

<Location>

Drum unit

Toner cartridge

Serial label

Serial label

Fig. App. 1-6

Fig. App. 1-7

App. 1-3

Confidential