A handheld 12.7mm inkjet printer is a practical tool for printing expiry dates on different products and packaging materials. It can help manufacturers, retailers, and small businesses mark important information such as production dates, expiry dates, batch numbers, and product codes. Its compact design makes it convenient for operators who need to print on individual items or small production batches. Depending on the printer model and ink cartridge, it may support printing on materials such as cardboard, paper, plastic, and selected packaging surfaces. The device can improve labeling efficiency, reduce repetitive handwriting, and help businesses maintain consistent product identification. Always confirm ink compatibility and print height before purchasing.