Checks can be reprinted only by voiding and purging, resetting the next check number, and then printing. This holds true for additional document printing as well.  We do not recommend printing multiple copies of checks. Printing multiple copies of checks would only record one check with that number in the bank register, but there would be multiple physical checks that could possibly be cashed.
If a copy of the check is needed, consider using a copy machine instead to make it more obvious that the copy is not a legal check.