Original only!

Not only because of the color fidelity, but also because of smearing, non-Eintrockung the printhead etc.
I print not only photos, but also particularly CDs, DVDs. etc. and am dependent on durability and color fidelity. Here has been able to compete with the Canon original inks foreign ink.
However, I have now two additional Canon printers (i865 and iP4000) I. Now operate with With Cheap China ink (250ml for 2 $) Here just "a lot of paper somehow colorful" must be - without any further claim.

However, this only works reliably, if I re Refill the original cartridges. Refillable empty cartridges and CISS system did not work reliably.
I'm not saying that it is not even functional systems with refill ink are - only I've not found that work in the long run reliably.
In Refill I certainly calibrates the printer, that is, create a color profile. Although the ink comes to the original ink still ran, but after calibration is no longer the difference quite so stark.