I like to change my company name on the printed receipt

Piet, January 2013

You will need to use the character code table in the manual to work out each code for the characters. It's not too hard. Then you use the receipt message programming section to enter the codes.
If you don't have the manual with the character code table, one of our users has it here:

http://the-checkout-tech.com/manuals/cashregisters/Samsung_ER-4615_operating_programming_manual.html

Registerman, January 2013