I posted that I refill cartridges for 9180 - but I was wrong in some instance. Actualy I have 9180 and 8850 together with Z3100. I stareted to refill cartridges and use them for 8850 without any problem, just got the messge "you put an used cartridge so actual amount of ink is not available".
But when I put refilled cartridge in 9180 printer gave me notification "you put an empty cartridge" - as I use refilled cartridges for 8850, I automaticaly suppose that 9180 will also accept them, but that was not true, it is different printer with different reactions.