In order to reset the print status in batch please use the following instructions:
Open the Selling/Purchase Tab.
Click Orders.
Click the Display icon.
Find the order that flagged incorrectly
Double click on the order to select it. Note: Multiple orders can be selected using the Ctrl or Shift keys.
At the top of the Process Batch window, click the Blue Arrow icon. A dialog appears asking if it is OK to clear the print status.
Click Yes. Now you can see the flag is changed.