If you don't want to print receipts for customers, you can choose not to - right from the StoreHub app!
Stop Printing Receipts
On the StoreHub app, head to Settings.
At Printer, ensure your printer is connected and the printer name/model is visible. If you can't see your printer listed, do refer here to connect your printer.
Tap the name of the printer and a popup will appear. Toggle Receipt Printing OFF.
If you want to only print receipts whenever you decide you want to print them (not print automatically), just toggle Always Print Receipts to OFF but leave Receipt Printing as ON.