The principle of a handheld inkjet printer is popular and easy to understand.
Many people see the production date and batch number on cartons, pipes, and plates with clear and flexible writing, and most of them are printed with handheld inkjet printers. It doesn't need to be connected to the assembly line, it can be used in your hand, and the principle is actually easy to understand. Handheld inkjet printers have similar ideas to large inkjet printers, but their structure is simpler. It is equipped with dedicated fast speed
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