The Canon 731Y cartridge is a high quality yellow toner cartridge
that has been produced by Canon themselves. As a result you can
expect minimum fuss and maximum compatibility when using the Canon
731 Y laser toner cartridge in your printer.
The toner powder in this Canon 731 toner cartridge has been
specially formulated to work with the Canon i-SENSYS LBP-7100CN and
all other compatible printers. No additional drum unit is required
as the 6269B002 cartridge itself contains everything your printer
needs to fuser the toner to paper.