Not sure if available in all QB desktop versions, but in Premier, if you navigate to the Customers menu item at the top, select Income Tracker from the drop-down, you can view all open invoices, sales orders, etc. (including only specific customer invoices) and batch print any you select from this list using the Batch Actions button at the bottom. But keep in mind, for sales orders and invoices, this list only shows open items. Paid invoices won't be listed here. (sometimes somewhat buggy though printing a high volume of invoices and sometimes they don't all print. Very strange.)
