Printers don't work!

I have some dark rp money printers and they spawn in but you cant take the money out of the printers. I have “DarkRP Special Money Printers”, I like these printers but they do not work. I have seen these work on one other server. Honestly, if someone could help me fix this or recommend me to some free money printers that would be great! Thanks for taking the time to help me with my problem! - Azemo