Brother HL-2600CN Service Manual page 381

--SERVICE MENU--
RESET COUNT
COVER AGE
Caution 1
The counter is limited for the following items;
COVERAGE :
PRINT PAGE :
ERROR HISTORY : Up to 100K errors are stored.
Caution 2
When modifying the life period, enter the Hitachi mode.
Clears the average coverage of the cyan, magenta,
yellow and black toner.
The number of pages over 100K is not stored.
Counted up to 100K pages.
A-34