We've noticed that our credit card receipts show the tender type at the bottom and change due, but does not print the credit card number (masked or otherwise) or the Processing Code on it, while every other retailer around us seems to have that on our credit cards.
It's important for us because if a customer makes a return, we just know that it was a Visa/MC, Amex, or other. To find which one was used, we have to go back in the journal which takes too much time.
Also, on another note, we use the ingenico 1000s for signature capture. Is there a way to print the signature on the receipt as well? It gets stored in the journal, so there much be a variable that allows us to write a code in XML to bring up the signature and print it somewhere on the receipt.