The Handheld Inkjet Printer (USB Model) is a robust "plug-and-play" coding solution engineered for production lines that prioritize data security and simplicity. By eliminating Wi-Fi and Bluetooth dependencies, this unit relies exclusively on its USB 2.0 port to import complex graphics, custom logos, and variable databases directly from flash drives. It features a responsive 4.3-inch capacitive touchscreen that allows operators to edit text, adjust font sizes, and configure print settings on the fly. The printer utilizes solvent-based quick-dry ink technology, ensuring instant adhesion to challenging substrates like plastic PVC pipes, metal tins, glass bottles, and glossy cardboard. Powered by a long-lasting 2000mAh rechargeable lithium battery, it delivers up to 8-10 hours of continuous operation, making it ideal for warehouse logistics and mobile batch coding.