InstallTheTonerCartridge - Canon imagerunner 1750i Starter Manual

Install the Toner Cartridge
01
Toner Cartridge Lock Lever
02
03
12 
Turn the toner cartridge lock
counterclockwise so that the arrow marks
on the lever and its axis face each other.
Remove the toner cartridge from its
protective bag.
Uncap the toner cartridge.
  D onottouchtheopeningofthetonercartridgeor
subjectittoshockbyhittingit.Doingsomaycausethe
tonertoleakoutofthecartridge.
lever