Receipts can be setup in various ways on a terminal. This setup is called Report Mapping.
These settings determine what size paper to print receipts/invoices on, what printers to use, and whether email receipts are sent.

For information on setting up Report Mapping and explanation of the different parts of the screen, see Setting up POS Printing
When changing these settings, do it from the intended terminal, because you cannot see the correct printers for another different terminal.

If you encounter an issue with receipt printing or emailing, the steps below may help.

Receipts are not printing

Make sure there isn't a problem with the printer first. See https://help.towersystems.com.au/portal/en/kb/articles/receipt-printer-not-working
Also make sure, you have not disabled receipt printing overall by mistake. See https://help.towersystems.com.au/portal/en/kb/articles/disable-automatic-receipt-printing
Close and reopen Retailer, to make sure it sees the current printers connected.
If the receipts are not printing, the printer may have been re-installed. This is sometimes caused by a Windows update.
The printer name may have changed due to this.

Go into Setup -> Point of Sale -> Terminals -> Report Mapping.
Find the lines showing POS or POS invoice or POS Payment, under Report Type.
Click on the Printer Name against those lines (under Printer column), then make sure to select the current receipt printer name from the dropdown list.
Click Save at the bottom.
Try printing a receipt, and contact Tower if the problem persists.

Duplicate receipt printing options when ending sale

Occasionally users may see a prompt when ending a sale after a Retailer update/ setting up receipt printing (report mapping).

You may see two or more duplicate printer selections.
Note: There may be two or more selections that are NOT duplicates. Your terminal may have been setup to print to different sized receipts/invoices, or print to different printers.

The duplicates can be removed by heading into the main screen of Retailer, then into Setup -> Point of Sale -> Terminals -> Report Mapping.
Scroll through the grid in the bottom half to see all receipt setups.
Identify the duplicated report mapping and select it.
You can use the minus button (not the delete button) on that particular line to remove it.

Receipts printing on wrong printer

A receipt may be set to the wrong printer name, or a non functioning printer. So you end up getting the printout from the wrong printer.
First, confirm the name of the receipt printer.

You can see your printers by clicking the Windows button in the bottom left, typing in 'control' and searching for Control Panel.
In Control Panel, open Devices and Printers, then you should see a list of printers on this terminal.

In Retailer, go into Setup -> Point of Sale -> Terminals -> Report Mapping.
Find the lines showing POS or POS invoice or POS Payment, under Report Type.
Click on the Printer Name against those lines (under Printer column), then make sure to select the current receipt printer name from the dropdown list.
Click Save at the bottom.
Try printing a receipt, and contact Tower if the problem persists.

Receipts have the wrong business information

If the business details are wrong on the receipt, you can change them in two places.
First, open up Setup -> System in the main screen of Retailer.
The details at the top are greyed out and come from the details you registered with Tower originally.
To change those details, go to the Tower website or click here, and sign in.
If you are already signed in on the website, click on My Account in the top right.
Then, click Change Business Details to type in the correct details and submit it.

The details at the bottom can be changed here, if they are wrong.
Click Save after making your changes.
The banking details can be changed in the Accounting tab.