1. Turn on the radio and the screen will light up.

2. Turn the key to the set gear.

3. press the PLU key.

4. Move down to the PLU menu.

5. Press the "Subtotal" key to enter the programming.

6. enter PLU. For example, 10 1.

7. Press the "Subtotal" key to confirm after input. Names and prices of the following commodities. You should enter it as above, and then press "Subtotal" to confirm.

8. After the input is completed, turn the key to the sales gear.

9. You can make the bill now. For example, the PLU just entered is 10 1. Now, enter 10 1 on the keyboard, and then press the PLU key, and the information such as the commodity name and price just entered will appear, and then press the subtotal key, the cash register will automatically pop up and the cash register can be used normally.