Hi, I did replace my Right printhead, and maintenance cart as prompted, and now I am getting the "low ink" message "be ready to replace" on two carts(130ml) on my canon ipf 6400 printer. Can someone tell me about what approximate percentage remaining is "low ink" ? I am trying to tell if it means 1 percent of 130ml left, or 10 %, or maybe 20 %, so I can better plan on when to buy two replacement carts,
Thank you, Debra