Machine-typed menus generally do not need to be stamped, because machine-typed menus already have the effect of legal evidence. According to relevant laws and regulations, typed menus are recognized as legal and valid transaction vouchers, and have the same legal effect as handwritten menus. The mechanism menu usually includes information such as the name of the merchant, the name of the dish, the price, the quantity, etc., which is recognized and confirmed by the merchant.

The menu printed by the machine does not need to be stamped for the following reasons:

1. With the development of electronic equipment, the mechanism menu has anti-counterfeiting function, which can effectively prevent tampering and forgery, so there is no need for additional stamp to increase its credibility.

2. There have been some supervision measures in the printing process of machine-printed menus, including the records of printers and the bills of merchants, which can provide evidence to prove the authenticity of the menus.

3. At present, electronic invoices and electronic certificate have been used in many places. As a kind of electronic certificate, mechanism sheet has been recognized by law and widely used.

It should be noted that although the machine-printed menu does not need to be stamped, merchants should ensure its authenticity and accuracy when using the machine-printed menu and abide by relevant laws and regulations. In addition, in some cases, such as involving important contracts or legal disputes, additional supporting materials may be needed to support the effectiveness of the mechanism menu. Therefore, under certain circumstances, the merchant can choose whether to use the seal or not to increase the credibility of the evidence.