Under "Setup" --> "Hardware", the "Edit" button 
takes you to the detailed view of the device in which you can make further settings. The settings marked in the following figure must be made so that the cash register prints receipts and invoices correctly. There are also additional settings to do with customer displays and screensavers you can ignore for now.
Here you can restrict the receipt printout (production receipts) to a single printer. This selection overrides the receipt printer in your article groups. If this is not desired, leave this field blank (Select Options).
If you do not want this device to print production receipts at all or only on certain printers, select the printers on which the device should not print.
Here you define the printer on which this device prints the invoices. This field must not remain empty.
The report and journal printer defines which printer is used to print the X- and Z-Reports.
Under Invoice layout, the device must be assigned to the layout in which you want to print. This field must not be empty.
After the first article group has been opened, the appliance returns to the first defined article group (e. g. drinks) after the booking has been made. If this is not desired, you can set the switch to "NO".