I just realized that Image Specialists provides for Canon printers with CLI-221 series ink cartridges with an ink that was formulated 10 years ago. IS part number WJ797 yellow ink is designated for BCI-3eY for printers such as S520 that was released in or before 2002. It is the same ink designated for MG and MX series printers with CLI-221Y. It is also the same ink for CLI-8Y for Pro9000 MKII. IS catalog also shows that it is for BCI-6 cartridges too. If Image Specialists did not reformulate the ink the WJ797 is at least a 10 year old ink formulation. If the ink has been reformulated over the years it seems it should have gotten new part numbers. WJ2032 is the part number of Image Specialists magenta ink. It is also designated for printers across several generations from BCI-3, BCI-6, CLI-8 and CLI-41. This ink is also about 10 years old.
10 years is a long time. There must have been a lot of new development of color dyes that are more fade resistant or whatever in 10 years. There have have been talks of nano technology development in color dyes and pigments in recent years. It seems Image Specialists is selling 10 year old technology for our latest Canon printers.
10 years is a long time. There must have been a lot of new development of color dyes that are more fade resistant or whatever in 10 years. There have have been talks of nano technology development in color dyes and pigments in recent years. It seems Image Specialists is selling 10 year old technology for our latest Canon printers.