Jettec printer cartridge ink
refill kits:

By far the most cost effective way to buy your ink. These ink cartridge refill kits can refill your cartridge up to six times! The ink contained in the printer ink refill kits is specifically formulated to match your printer.
To refill your printer cartridge successfully it is best to refill the printer cartridge as soon as it becomes empty, this prevents ink drying out on the print head and blocking the nozzles. Each ink refill kit contains cartridge head cleaning solution that can help if this happens.
Specific refill instructions for your ink cartridge can be found at: www.jettecrefill.com