How to Change a Toner Cartridge in a Canon PC940

1. Remove the new toner cartridge from the box. Take off any packaging materials used to protect the Canon toner cartridge during shipment.
2. Open the top of the PC940, and slide the old toner cartridge out of the machine. Set that toner cartridge aside for recycling.
3. Shake the new toner cartridge back and forth five or six times to distribute the toner powder evenly inside the cartridge. Pull the tab on the side of the toner cartridge to release the toner.
4. Insert the new toner cartridge in the PC940. Close the top cover, and make a test copy.