Prior to version 7.87.164, and for the prior 2015 tax year, 1099s used all pre-printed forms. 

As of version 7.87.164, and starting with the 2016 tax year, certain copies of the 1099s must use blank paper forms and certain copies will still be pre-printed. Click here for full details: Which forms and copies of 1099s and W2s are required this year