Brother DCP135C has got a cleaning error 46, how

Follow this:
1. Pres 'menu', 'mono start' then' menu' one by one...
2. Press the arrow up or down to go to 'maintenance 80'.
3. Press 'mono start' several times to go to 'Purge'. Finding the PURGE will show some numeric value which is Iassume the number of times the printer had cleaned.
4. Press 'arrow up' key and scroll for number "2" then press "set".Do the same for numbers 7, 8 and 3.
After you have entered this combination, the purge numeric value will be reseted to 00000.
5.Restart printer