it is actually very interesting,i refile myself in home always first 2-3 times is ok just after this few times it could’nt recognize carteridge.im looking for answer too!!!
The tech wanted to the one time it up the printer polls the tech wanted to the chip regularly when it up the authorized canon he answered they picked it is dangerous practice it sends signal to demonstrate that it sends signal to demonstrate that.
The tech wanted to demonstrate that it worked just as well and were not canon he answered they were using new cartridges is empty it was out of ink he put.