@Palatino, I haven’t heard that it doesn’t work, and I imagine if it didn’t there would be howls of complaints to the makers of the redsetter.Why 4ml ?
The capacity of "standard" cartrigde (not XL ) is 7 ml, not 4 ml ?
It appears this is the potential volume of the sponged side of the set up cartridge. How much ink is in this chamber when you refill is a function of your usage before refilling.How much ink remains in the cartridge before refilling . . . 3 ml?