Just bought an 27" iMac3.5GHz Intel Core i7). Migration worked well from TimeMachine but no Canon 19100 printer driver. Apple web site says go to Canon support but the Easy-PhotoPrint EX_322.pkg "can't be opened because it is from an unidentified developer". I have tried different drivers from Canon but always the same message.
Is there a general Canon driver that will work or any other suggestions?