Are there any steps before attaching a Scanner

It would be the dealer manual you require, the service manual would contain information about the hardware rather than programming information.

Yep, dealer one goes in depth on scanning. All the stuff they hide from the user 😉

Also, you may need the programming manual for your scanner itself. this is normally a small thick book full of barcodes. It may be needed if your scanner has been setup for a different machine, or different types of bar codes in the past. It is not essential at this stage. Once you get the dealer manual, we can look into the scanner if the settings don't work. Just pm me if you need help with the tables in the book.