Olivetti PG L2435 Operation Manual page 179

>>Off/On
? Off
>>TonerAlert Level
7-72
Off/On (Setting toner addition notifications)
Select whether Toner Alert Level is enabled.
1
After entering the administrator ID and password, press  or 
repeatedly until >>Off/On appears.
2
Press [OK]. A blinking question mark (?) appears.
3
Select On or Off using  or .
4
Press [OK].
5
Press [MENU]. The display returns to Ready.
TonerAlert Level (Setting for the alert level for toner addition)
This sets the level at which toner addition alerts will be displayed.
1
After entering the administrator ID and password, press  or 
repeatedly until >>TonerAlert Level appears.
2
Press [OK]. A blinking cursor (_) appears.
005 %
3
Press  or  to increase or decrease the value at the blinking cursor
and set the level at which an alert will be displayed. The setting is
possible between 005 and 100%. Use  and  to move the cursor
right and left.
4
Press [OK].
5
Press [MENU]. The display returns to Ready.
Using the Operation Panel