Barcode Not Working On Invoice

Can anyone suggest me regarding the barcode on invoice. We noticed that we do get barcode while printing the invoice but when we tested to scan the barcode. It is not working. Any help will be appreciated. Thanks in advance.

In the Order barcode settings there are several type of barcode available for choice. Try to play with settings

Pay attention to each type specification http://joxi.ru/eAODJRZSxW93or