Sorry misread your question. If you go to maintenance - resources and change Printer.Ticket.Logo as per attached screenshot.
in configuration - general you can add your own logo.
See attached printer.ticket resource - save your original before using this. I have included in this print order for kitchen and print 2 receipts as requested. Can;t really group order as required as adding auxilliaries or attributes wouldn't work
Did you read the hardware installation guide - in files
did you try the above?
See attached
Go away
Look at taxes management guide in files on this site.