i used to canon for a while.had similar prob.this appear probaly due to some reasons.had u refill the ink?sometimes this appear after u refilling the ink. u must know that we had to change the catdridge not refill the ink.if blinking still occur,just detached the catdrige several times.wipe out the ink left on the head,and re-attached them.do the print head allignment,nozzle check and all that.i had to try several times and it works.sorry if it is not help,but, it just from my previous experience.
Canon IP3000 5 orange light of death, Tired of printers breaking down