Migration Problems

I bought a new "used" iMac and completed with migration of files and apps from old iMac to new iMac. Seemed to go great. It did say there was a printer installation files that was weird but I thought I bypassed it. Everything went thru completely and it said it was successful. Then my new iMac went to restart and it has just been stuck on the apple for ever. I have tried restarting a couple times and even did the PRAM thing to try and get it unstuck. I can't get it passed that to even look on computer for bad files. What should I do?