I was printing banner and I got ink end error on my VJ1617H. Since I forgot to buy new ink pouch, I found old pouch with some ink left. So, I pulled ink with syringe and put in one that gave me error. I have not replaced chip card. After I plugged in error was gone. How is that possible? I thought this printer counts how much ink goes to print head. There is no sensor that checks weight or anything like that. Is there a maybe sensor that checks pressure maybe? Anybody have any idea? Because if I could do this I would just buy ink in bottles and fill pouches by myself. I bought this printer used. I dont think its unlocked, because it requires chip card to be inserted.