Canon LBP7780CX User Manual page 624

[Paper Information], [Toner
[Consumables] Cart. Model], [Remaining
Toner]
[Paper Information]
Displays information about the loaded paper such as size,
type, and remaining amount for each paper source.
[Toner Cart. Model]
Displays the model numbers of the toner cartridges of
each color.
[Remaining Toner]
Displays the amount of toner remaining in the cartridge.
You can use this item to estimate when the toner
cartridge will need to be replaced.