I have Canon i550 printer. When I bought it the sale person told me it is
great because when the ink will finish you do not need to replace the
cartage but you need to only refill the ink!! that is great news but now the
ink is finished and I went to store and he told me to buy the whole ink box
(the small black color) but I told him I thought I can reenject the ink but
he told me this is not good idea.. what do you think? Thanks a lot.