Refilling lets you effectively replenish the ink levels of your printer’s cartridges without spending money on new replacements. But since each cartridge has a non-resettable chip that needs changing between refills, the process can be quite difficult.
The price of just one OEM printer ink cartridge, however, is enough to refill six ink cartridges in one go. The significant savings alone is enough to justify the time and effort you spend on refilling your ink tanks.