Instruct: Classify Amazon reviews into positive or negative sentiment
Query: never again!

I purchased this MP 780 Printer in May 2006. 6 Months later the problem began. The only color that the printer was able to print was basically black. All the other colors were barely visible. I contacted Canon and they sent me a replacement print head. I had to wait 3 weeks to receive it instead of the promised 3-4 days because it was on back order. Anyway, it worked fine after that. Now, 2 months later after replacing the print head, the same problem has returned.I bought this printer because it got such good ratings. I will not be buying another Canon Printer again. I have an old HP inkjet printer that I bought in 2000 and have never had a problem with it.