I use the epson 9900 for months with refillable cartridges. Recently I have ink pollution problems, the magenta cartridge has black ink. See picture.
I have no color problems but I have many problems with banding.
Clean injectors and after printing one meters banding begins. Someone has gone something like this?
It is a pleasure to be in this forum. I hope to learn and contribute information. Greetings to all from Spain.