If the checks are from Payables, you can go to:
Transactions > Purchasing > Post Checks.
From the Post Payables Checks window, choose the action you need from the Process field.
The options you have are: Post Checks / Print Stub Alignment / Reprint Checks / Void Checks.
then click the Process Button.
If you want to reprint, but numbers on checks are overlapped, you might want to verify that the checkbook allows you to override check numbers and allow duplicate in "Cards > Financial > Checkbook"
