Finger Print

Hi! good day all. Just 2 weeks ago my residence visa together with my 2 children was granted by moi under my wife sponsor and we undergone medical exam and the schedule for finger printing will be on sept 1. Now one of my friend told me that, i will encounter a problem on my finger printing because my 2 year ban from my previus sponsor is still in effect and probably the finger printing machine will appear an error mark on my file. Now i just want to ask if somebody here have knowledge how true is it. Our visa was approved by the moi, but is it possible that i can have problem in finger printing? I resigned from my previous employer last year November 15 and that is my 5fth year working from that company. Please for those who have knowledge please advise me.