Howsir Canon IP4000 printer partner, ink cartridge for BCI-3eBK/ BCI-6C/ BCI-6M/ BCI-6Y/ BCI-6BK.Uses the special ink of the printer Canon IP4000. The gray color is not reddish, flowing is good, does not agonic color, does not caulking, does not corrode the printing head,the performance-to-price is best. The printing effect may compare with the original ink of the Canon IP4000. A set of the Canon IP4000 printer partner is equal in above original ink 10 times, reduces the printing cost greatly. Can save 90% printing cost for you. Does not need to adapt the printer, uses up a color to add a color. The printing color can compare with the original ink cartridge. The long time printing is more stabler, does not need to maintain, you can print what you desire.