Brother MFC-4300 用户手册

      T R O U B L E S H O O T I N G   A N D   R O U T I N E   M A I N T E N A N C E

The MFC can print approximately 2,200 pages with one toner cartridge.  When 
the toner cartridge is running low, the LCD shows TONER LOW. The MFC is 
supplied with a starter toner cartridge that must be replaced after 1,000 pages. 
Actual page count will vary depending on your average document type (i.e. 
standard letter, detailed graphics).

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.  If you are not 
sure of them, call your local Sanitation Department.  Be sure to seal the toner 
cartridge tightly so toner powder does not spill out of the cartridge.  When 
discarding used toner cartridges, keep them separate from domestic garbage.  

Just after you have used the MFC, some internal parts of the MFC will be 
extremely HOT!  So, never touch the shaded parts shown in the illustration.

We recommend that you clean the MFC when you replace the toner cartridge.