Routine Maintenance
The following messages appear on the LCD in the Ready mode. These messages provide advanced
warnings to replace supplies before they reach their end of life. To avoid any inconvenience, you may want
to buy spare supplies before the machine stops printing.
LCD messages
Supply to get
ready
Toner cartridge
Toner Low: X
X = C, M, Y, BK
C = Cyan
M = Magenta
Y = Yellow
BK = Black
Drum unit
Drum End Soon
Belt unit
Belt End Soon
Waste toner box
WT Box End Soon
1
A4 or Letter size single-sided pages
2
Approximate cartridge yield is declared in accordance with ISO/IEC 19798.
3
Life of supply is approximate and may vary by type of use.
4
Standard toner cartridge
5
High yield toner cartridge
6
Super high yield toner cartridge (HL-L8350CDW only)
Approximate life
How to replace
(Black)
See page 123
1 2 4
2,500 pages
1 2 5
4,000 pages
1 2 6
6,000 pages
(Cyan, Magenta,
Yellow)
1 2 4
1,500 pages
1 2 5
3,500 pages
1 2 6
6,000 pages
See page 129
1 3
25,000 pages
50,000 pages
See page 135
1 3
(5 pages per job)
20,000 pages
1 3
(1 page per job)
See page 141
1 3
50,000 pages
Model Name
4
TN-321BK
5
TN-326BK
6
TN-329BK
4
TN-321C
5
TN-326C
6
TN-329C
4
TN-321M
5
TN-326M
6
TN-329M
4
TN-321Y
5
TN-326Y
6
TN-329Y
DR-321CL
BU-320CL
WT-320CL
119
5