Customer Rating: 
Summary: Canon BCI-6BK Black Ink Tank
Comment: This is a standard Canon product at a discounted price compared to local computer stores.
Ron
Customer Rating:
Summary: Great price
Comment: This is a great price, which is important when you go through ink so quickly.
Customer Rating:
Summary: original inks best
Comment: Confessions of a cheapo. I used 2nd market replacement inks. They did print o.k. However, the bottom line, they eventuality cause the "seating prongs" on the print head to break. So,my lesson, use the OEM inks, along with Canon paper to provide the best prevention to fading, bleed and create the best tones. The end.
Customer Rating:
Summary: pleased
Comment: These name brand tanks are more color accurate than SOME refill inks. Furthermore, I've had one refill ink permanently clog the tank, and the printer as well, until I performed deep cleanings on the printer with a squirt or two of alcohol. I've found one aftermarket brand ink refill that seems to flow freely. To the consumer who doesn't want to experiment in order to save money, I recommend the Canon tanks, as expensive as they are.
Customer Rating:
Summary: stick with the best
Comment: i used canon ink and then decided to try one of the cheap imitations. it worked well for a few months and then my photos came out of my canon i900d with color changes. after 3 conversations with canon customer care, we decided it was not the printer, but the cheaper ink. i switched back to canon, bit the bullet on the price, and everything is fine. i found decent prices on amazon, particularly at eek industries.
Summary: Canon BCI-6BK Black Ink Tank
Comment: This is a standard Canon product at a discounted price compared to local computer stores.
Ron
Customer Rating:
Summary: Great price
Comment: This is a great price, which is important when you go through ink so quickly.
Customer Rating:
Summary: original inks best
Comment: Confessions of a cheapo. I used 2nd market replacement inks. They did print o.k. However, the bottom line, they eventuality cause the "seating prongs" on the print head to break. So,my lesson, use the OEM inks, along with Canon paper to provide the best prevention to fading, bleed and create the best tones. The end.
Customer Rating:
Summary: pleased
Comment: These name brand tanks are more color accurate than SOME refill inks. Furthermore, I've had one refill ink permanently clog the tank, and the printer as well, until I performed deep cleanings on the printer with a squirt or two of alcohol. I've found one aftermarket brand ink refill that seems to flow freely. To the consumer who doesn't want to experiment in order to save money, I recommend the Canon tanks, as expensive as they are.
Customer Rating:
Summary: stick with the best
Comment: i used canon ink and then decided to try one of the cheap imitations. it worked well for a few months and then my photos came out of my canon i900d with color changes. after 3 conversations with canon customer care, we decided it was not the printer, but the cheaper ink. i switched back to canon, bit the bullet on the price, and everything is fine. i found decent prices on amazon, particularly at eek industries.