A handheld inkjet coding printer provides convenient, portable printing for businesses that need flexible product identification. Its compact design makes it easy to carry and operate on different surfaces. The printer can be used for batch numbers, dates, serial numbers, prices, product codes, logos, and short messages. It is suitable for cartons, plastic, metal, glass, wood, paper, bags, and other compatible materials. Its rechargeable battery supports mobile operation, while the touchscreen interface makes setting up print jobs simple. It is useful in manufacturing, packaging, warehouses, workshops, retail, and small businesses.