The most important toner data and the current fill level can be found in the operator panel
in menu <Replace consumables> <Toner bottle identification>, e. g.:
Display
Toner
Fill level
Feed counter
A29246-X20-X-4-7680 / fa301.fm
Description
Displays the ID of the toner used.
The message "unknown" indicates that the toner bottle is not
equipped with a transponder.
Displays whether there is still toner in the toner bottle.
Displays the current number of feed cycles from the toner bottle.
3.2.3 Toner bottle identification
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