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I have a Canon IP7250, two day ago, my printer showed me error C000. I resolved this error, but now my printer won't printing in colour. Black working properly. I tried many times to cleaning a toner in mainteace. When I go to "print head alignment" ...

I am reslove C000 Error on my Canon but  now my printer prints a blank page ? Please help . 

https://www.youtube.com/watch?v=UB9-LYP_fF0&feature=youtu.be