Star printer is printing online receipts

I am using point of sale for woocommerce and have a star printer with cloudprnt setup with my pos and it’s working fine. However, I am having an issue that when someone places an inline order, it prints a receipt at the register and I need to make it stop. My online orders have a regular order number and my in-store sales have the prefix “reg” before the order number. Is there a way for me to have the printer only print orders with the reg prefix or another way to stop this from happening?