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3. -If the cash register is set accordingly, prints one or more copies of the last sales receipt. When pressed during caption programming, toggles between caps on/ off. 4. -Confirms an entered clerk number. Used during caption programming. 5. -Deletes the last item entered, and corrects a particular entry after it is processed and printed, or full entries after a subtotal.Used during caption programming. 6. -Subtracts an item that is returned for refund. Used during caption programming. 7. -Allo