Canon LBP7018C E-Manual page 101

The replacement timing of the included consumables is as follows.
K (Black) Toner Cartridge
Y (Yellow) Toner Cartridge
M (Magenta) Toner Cartridge
C (Cyan) Toner Cartridge
Drum Cartridge
*1
The average yield is on the basis of "ISO/IEC 19798"
density setting.
*
"ISO/IEC 19798" is the global standard related to "Method for the determination of toner cartridge yield for
color printers and multi-function devices that contain printer components" issued by ISO (International
Organization for Standardization).
*2
The lifetime of the drum cartridge is on the basis of our evaluation criteria when printing A4 size plain paper
at interval of 2 sheets (printing 2 sheets intermittently).
Also, this value is the lifetime of the drum cartridge when performing color printing. The lifetime of the drum
cartridge is approximately double when performing only black and white printing.
For purchasing consumables, see "Consumables."
Average yield of the toner cartridge:
*1
550 pages
Average yield of Composite Y (Yellow), M (Magenta), and C (Cyan) toner
cartridges:
*1
500 pages
The lifetime of the drum cartridge:
*2
7,000 pages
*
when printing A4 size paper with the default print