I have an iX4000 and I use the German refilling method. I always fill at an angle and my color cartridge refilling is very clean. However, black cartridge refilling is messy. I use dye black instead of pigment black. After refilling my black cartridge, I wait for a few seconds to give the air...
I have been refilling my cartridges and therefore had to dissable ink level monitor. I wanted to see ink levels without removing the cartridges, so I removed first the light guide of my CLI-8 Yellow and my iX4000 recognize the cartridge. Then I removed the light guide of the PGI-5 Black, and...