Toshiba e-STUDIO6520C Service Handbook page 335

For example, if the peripheral parts of the process units (K) and (C) reach the maintenance time, the 4-
digit hexadecimal number code will be "000C" in hexadecimal numbers: 0008+0004=000C.
4th digit 3rd digit
None Part (transfer roller)
Hexadecimal
number code
"0" 0
Always
1
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2nd digit
Developer material
Hexadecimal
Explanation
number code
No 0
maintenance
required
Maintenance 1
required
2
3
4
5
6
7
8
9
A
B
C
D
E
F
5 - 3
1st digit
Photoconductive drum
Hexadecimal
Explanation
number code
No 0
maintenance
required
Y 1
M 2
M+Y 3
C 4
Y+C 5
C+M 6
Y+M+C 7
K 8
K+Y 9
K+M A
K+M+Y B
K+C C
K+Y+C D
K+C+M E
K+Y+M+C F
e-STUDIO5520C/6520C/6530C
PREVENTIVE MAINTENANCE (PM)
Explanation
No
maintenance
required
Y
M
M+Y
C
Y+C
C+M
Y+M+C
K
K+Y
K+M
K+M+Y
K+C
K+Y+C
K+C+M
K+Y+M+C
5