Hello my name is***** do not rate until we are finished. I look forward to assisting and am very sorry to hear that you are having this problem. I want to warn you that it is possible you will need to replace a part in order to fix this. There are a few different things that can cause this and a couple different parts so we would need to troubleshoot to find out for sure. Have you tried cleaning it yet?
How did you clean it?
Ok how old is the printer'? If over a year old did you get an extended warranty?
Unfortunately when cleaning does not help the print head needs to be replaced to fix this. If it was under warranty this would normally be covered. When not under warranty this is the cheapest I have found the part: Click Here The part number is ***** if you want to look somewhere else. Due to the price some people do decide to replace the machine instead. If you have any questions at all reply and let me know. If not please don’t forget to leave a positive rating by clicking the stars/smileys for my help - it is greatly appreciated. Please note you are rating me only not this site or your Canon.