I was wondering if anyone could help me. Unknown to me at the time i purchased several BCI 3e ink cartridges and used them in my i865 printer. Several days of use later i realised that i had got the wrong ones. They should have been the BCI 6 cartridges. The cartridges look identical and there seems to be no difference printing, but i was wondering if there WAS a difference and if the 3 series would cause any harm to the printer. I would prefer to use the BCI 3's as they are at least $5.00 AUS cheaper. I am unable to find any info on the canon site {when i can actually get there pages to come up
} I don't want to use refills until my warranty runs out, after that there will be no problem.