Casio TK6000 Operation Manual page 4

4. Making Corrections To A Transaction
1. To clear the last transaction (before the subtotal key is entered)
press the ERR CORR/CANCEL key.
2. Once the subtotal key is pressed, press ERR CORR/CANCEL to
cancel the entire transaction
3. The C key clears the screen
5. Refunds
1. Press the RF key then the key for the corresponding item that is
being refunded
2. Press SUBTOTAL to give the total amount due/owned
6. Multiple Refunds
1. To refund multiple items you can turn the key to RF mode then
enter the items as you normally would to process a sale.
2. Once the transaction is completed it is important to turn the key
back to REG mode, if it isn't then the next transaction would be
processed as a refund.
7. To Give A % Discount (eg 15%)
1. Press the key that corresponds to the item purchased, or use the
keys to enter in the amount and then the PLU
2. Enter the amount to be discounted (eg 15 for 15%)
3. Press the % key. This will display the dollar amount that has been
discounted
4. Press the SUBTOTAL key and this will display total amount due