1, run the cashier system login account, and check whether the commodity files of the cashier system are downloaded successfully.
2. When a guest comes to shop, use a scanning gun to scan the goods brought by the guest, and the software will automatically put the scanned goods into the shopping list in the cashier interface. Pay attention to the sound of the scanning gun. If the scan is unsuccessful, a different sound will be made.
3. After sweeping the guest's goods, press the keyboard shortcut "Keypad/" to pop up the payment interface, ask the guest which payment method to use, and then select the payment method on the cash register.
4. If the guest says that he is a member and needs to earn points or pay with the member's stored-value card, click on the member in the collection interface, and then ask the guest to brush the membership card or report the mobile phone number. After seeing the member information, press the Enter key on the keyboard or click on the consumption with the mouse.
5. After entering the consumption interface, see how the guests will pay, and then choose the payment method. If members use stored-value cards for consumption, they can directly click on the stored-value cards.
6. If the guests pay in cash, they should pay attention to how much change they should have at the time of settlement, and then when the receipt is printed, the cash box will pop up automatically, put the cash in and give the change to the guests.
Second, a brief introduction to the scanning gun
1. As a high-tech product closely combining optics, machinery, electronics and software applications, the scanning gun is the third generation of main computer input equipment after the keyboard and mouse.
2. Since the birth of the scanning gun in 1980s, it has been rapidly developed and widely used. From the most direct pictures, photos and films to various drawings, charts and manuscripts, you can use a scanning gun to input them into the computer, so as to realize the processing, management, use, storage or output of these image information.
Third, the working principle of the scanning gun
1, the common plane scanning gun generally consists of light source, optical lens, scanning module, analog-to-digital conversion circuit and plastic shell. It uses photoelectric elements to convert the detected optical signals into electrical signals, and then converts the electrical signals into digital signals through an analog-to-digital converter and transmits them to a computer for processing.
2. When scanning an image, the reflected light from the light source shines on the image and is converged on the scanning module through the lens. The scanning module converts the optical signal into an analog digital signal (i.e., voltage, which is related to the intensity of the received light) and indicates the degree of gloom of the image.
3. At this time, the analog-to-digital conversion circuit converts the analog voltage into a digital signal and transmits it to the computer. The color is quantized with 8, 10 and 12 bits of RGB, which not only processes the signal into the above digital image and outputs it.
4. If there are higher quantization digits, it means that the image can have richer levels and depths, but the color range is beyond the recognition ability of human eyes. So for us, the effect of scanning with a higher-digit scanner is that the color connection is smooth and we can see more picture details.