A handheld inkjet coding printer is a versatile tool for manufacturing and packaging operations requiring direct product marking. It can print dates, batch numbers, serial numbers, text, codes, symbols, and other identification information on compatible surfaces. The handheld design supports convenient operation and allows marking of products in different positions and locations. It can be used for cartons, bags, plastic containers, metal components, wooden products, packaging materials, and other suitable items. Applications include factories, workshops, warehouses, logistics, packaging businesses, retail operations, and small-scale manufacturing.