I have a Canon i9100 and I seem to be changing ink cartridges WAY more often than would seem appropriate for the amount I print. I am wondering if, when idle, the ink might be dripping into the catch sponge very slowly or if the printer is just a total hog. I barely use it -- maybe once every few weeks to print a few pages and it seems I am out of one color or another every three of four times I go to print something. Anyone have any experience with this, or tips on conserving ink? It's very frustrating because considering the light coverage, I can only print maybe ten pages before I have to change a cartridge.