Cannon MX870 Printer - Won't print when small black ink is empty even though there is plenty of ink in the larger black cart. Tags: Canon Components Printers Last response: July 15, 2013 11:23 AM in Components Share rockcarter July 15, 2013 9:57:10 AM canon mx870 problem with second black ink cartridges. The large ink is full and the small is empty but it will not print. More about : cannon mx870 printer print small black ink empty plenty ink larger black cart rgd1101 July 15, 2013 11:23:18 AM are you printing in color? that why. m 0 l Can't find your answer ? Ask ! Publish Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !