INSTRUCTIONS FOR REFILLING JF333 Cartridges (for Dell 725 & 810)
Best results will be achieved if the cartridge is filled when it is between ½ and ¼ full. If you wait until a color runs out, you risk burning out the print head. Injector (blunted needle) usually supplied is designed to screw onto a standard syringe, almost always included. Set up an area that can handle a little ink spillage. Spread out newspapers, etc. Have some tissues handy to blot excess ink. Rubber gloves are recommended to keep hands clean.