COLOR LASER PRINTER TONER HOW TO
The instructions will show you where and how to burn the hole. Follow the instructions provided with the toner refill kit if you are required to use a burn tool. Other cartridges require that you make your own fill hole, and corresponding toner refill kits typically come with a burn tool and heavy-duty aluminum "flue tape" to close up the hole after you finish refilling a toner cartridge.Some cartridges already have a fill hole stopped up with a plastic plug that you can easily remove. Check to see if the holding tank has an existing fill hole or not.
This is a relatively featureless wide compartment where you will need to refill toner powder.
Locate the holding tank on your toner cartridge.