Replacing the waste toner box, Wt box end soon, Replace wt box – Brother HL-L8350CDWT User Manual
Page 148: 5replacing the waste toner box, Make sure that the machine is turned on

Routine Maintenance
141
5
Replacing the waste toner box
5
Order No. WT-320CL
The life of a waste toner box is approximately 50,000 pages.
1
Letter or A4 size single-sided pages.
2
Waste toner box life is approximate and may vary by type of use.
WT Box End Soon
5
WT Box End Soon
If the LCD displays WT Box End Soon, it means the waste toner box is near the end of its life. Buy a new
waste toner box and have it ready before you get a Replace WT Box message. To replace the waste toner
box, see Replacing the waste toner box on page 141.
Replace WT Box
5
When the following message appears on the LCD, you must replace the waste toner box:
Replace WT Box
Replacing the waste toner box
5
a
Make sure that the machine is turned on.
b
Press the front cover release button and pull open the front cover.