This can happen if you have the wrong type of printer set as your default printer in Windows (e.g. a label printer, etc.). To fix the issue, close Cashbook, then do the following:-
- In Windows, go to “Settings”, “Devices”, “Printers and scanners”
- Uncheck the option labelled “Allow Windows to manage my default printer”
- Select your actual A4 printer, then click the “Manage” button
- Click the “Set as default” button
Next time you use Cashbook, you should now be able to print properly.