Replacing the toner cartridge (tn-550/tn-580), Replacing the toner cartridge, E. (see – Brother MFC-8660DN User Manual
Page 146: Tn-550/tn-580), Hot surface
 
132
Replacing the toner cartridge 
(TN-550/TN-580)
C
The TN-580 toner cartridge can print 
approximately 7,000 pages using a high yield 
toner cartridge. When the toner cartridge is 
running low, the LCD shows Toner Low. 
The machine is supplied with a standard TN-
550 toner cartridge that must be replaced 
after approximately 3,500 pages. Actual page 
count will vary depending on your average 
type of document (i.e., standard letter, 
detailed graphics).
Note
It is a good idea to keep a new toner 
cartridge ready for use when you see the 
Toner Low warning.
Discard the used toner cartridge according to 
local regulations, keeping it separate from 
domestic waste. Be sure to seal up the toner 
cartridge tightly so that toner powder does not 
spill out of the cartridge. If you have 
questions, call your local waste disposal 
office. 
We recommend that you clean the machine 
and corona wire of the drum unit when you 
replace the toner cartridge. (See Cleaning the 
laser scanner window on page 128 and 
Cleaning the corona wire on page 130.)
Replacing the toner cartridge
C
HOT SURFACE
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. When you open the front or 
back cover of the machine, DO NOT touch 
the shaded parts shown in the illustration.
a
Open the front cover and take out the 
drum unit and toner cartridge assembly.