The difference between catering receipt paper and A4 paper mainly includes the following aspects:

1. Size: Catering receipt paper is usually small, generally 58 mm wide and 41 to 61 meters long, while A4 paper is 211 mm wide and 297 mm long.

2. Material: thermal paper or carbon tape paper is usually used for catering receipt paper, which has certain waterproof performance. A4 paper is usually ordinary printing paper or copy paper, which can't bear moisture.

3. Usage: The food and beverage receipt paper is usually used for ordering and checking out in restaurants and other occasions, and it is necessary to record the order information and consumption amount of the guests. A4 paper, on the other hand, is mostly used for official occasions such as office work and printing documents and contracts.

4. printing method: thermal printer or stylus printer is usually used to print the catering receipt paper, which has fast printing speed and low noise. A4 paper is usually printed by laser printer or inkjet printer, and the printing speed is relatively slow.