You might want to check out Octoinkjet and Precisioncolors. Both are excellent sellers and both post on this forum regularly.
Which model Canon Pixma? There are many different models with different cartridges and different refill methods.
Here is printer model: Canon PIXMA MG7720
I wonder, is this type number really correct? The printer type number is for the North American model (intended for use in USA and Canada). The Model intended for use in Europe is Canon Pixma MG7750. Did you import the printer yourself or bring it with you from North America? The North American model will only work with cartridges and chips and resetters marked PGI-270 or CLI-271. The cartridges, chips and resetters for the European version are marked PGI-570 or CLI-571. Accessories for the European model will not work with the North American model and vice versa.
