Rihac has a product that will save you hundreds if not thousands of dollars off your printer ink costs. It is a continuous inking system that has the ink stored in a container outside the printer and tubes feeding the cartridges, this system keeps the cartridges full at all times and allows you to print enormous amounts of full colour prints at a fraction of the usual costs. The ink is of very high quality and refills are very inexpensive. I have been using the system now for over five years, the first one was on my old Cannon printer where I printed tens of thousands of A4 size colour prints without the loss of any ink, the printer packed it in but the ink system was still working perfectly. I have since replaced my printer with a Brother Ink Jet and have fitted a new Rihac Continuous Inking System to it, again I have already printed out thousands of full colour prints and used less than half of the ink in the bottles.
The link below will give you a lot more information than what I could, it gives a printer compatability list and the price list. For anyone who does use their printer a lot this system will save you an enormous amount of money. They ship to most places around the world.
http://www.rihac.com.au/PrintAndSave/Refill.html?gclid=COSU76awhMYCFZcTvQodeT4AgADes.
I am not affiliated with this company in any way, just wanted to let you know how good this system is and well worth the initial set-up costs.