How to Make a Hole & Refill Toner Cartridges
- 1). Turn the printer off and remove the ink cartridge.
- 2). Drill a small hole on the top portion of the cartridge with a thumb drill. Depending on the refill kit you purchase, a thumb drill may or may not be included.
- 3). Insert the syringe into the ink bottle and draw up the ink. The syringe and ink bottle is included with the refill kit.
- 4). Insert the syringe into the hole and slowly fill the cartridge. When the syringe is empty, the cartridge is full.
- 5). Reinstall the ink cartridge.
Source...