the act of counterfeiting trademarks can be specifically divided into the following four types: (1) using the same trademark as another person's registered trademark on the same commodity; (2) using a trademark similar to the registered trademark of others on the same commodity; (3) using the same trademark as the registered trademark on similar goods; (4) using a trademark similar to the registered trademark of others on similar goods. The first behavior is counterfeiting, and the other three are counterfeiting. Counterfeiting a registered trademark is the most serious infringement of the exclusive right to use a trademark. If the circumstances are serious, criminal responsibility shall be investigated according to law. "The same trademark" means that there is basically no difference in vision between the trademark accused of infringement and the registered trademark of the plaintiff. "Approximate trademark" means that compared with the plaintiff's registered trademark, the trademark accused of infringement has similar font, pronunciation, meaning, graphic composition and color, or the overall structure after the combination of its elements, or its three-dimensional shape and color combination, which may easily make the relevant public misunderstand the source of the goods or think that its source has a specific connection with the goods registered by the plaintiff. "Similar goods" refer to goods that are identical in functions, uses, production departments, sales channels, consumers, etc., or that are generally considered by the relevant public to be related and easily confused. When determining whether goods or services are similar, we should make a comprehensive judgment based on the general understanding of goods or services by the relevant public. The international classification table of goods and services for trademark registration and the classification table of similar goods and services can be used as a reference for judging similar goods or services. The above knowledge is my answer to the relevant legal questions. According to the relevant laws of our country, if the fake printed matter infringes on the trademarks of others and the circumstances are serious, criminal responsibility can be investigated according to the crime of counterfeiting registered trademarks.