A portable inkjet printer can simplify the process of adding batch and expiry information to products and packaging. The handheld design allows users to position the printing head directly over the required surface and create clear identification marks. This can be valuable for food packaging, household products, cosmetics, small manufactured goods, and other items where date information is important. Depending on the compatible ink and surface, the machine may support printing on materials such as cardboard, plastic, paper, and other suitable substrates. Its portable nature makes it convenient for businesses handling different product sizes. Operators can move between locations easily while maintaining organized and consistent coding procedures.