A compact handheld inkjet printer is an effective tool for adding production dates, expiry dates, batch numbers, and lot identification to products and packaging. Its portable structure allows users to move around the workplace and mark individual items or small production batches conveniently. The printer can be particularly useful where fixed industrial coding equipment is unnecessary or impractical. Depending on the selected ink and surface, markings can be applied to cardboard, plastic, metal, glass, wood, and other suitable materials. Clear printing helps improve traceability and product organization. It is suitable for manufacturers, distributors, warehouses, retailers, workshops, and businesses that require flexible date and batch coding.