PAPERANG is the first portable student printer that operates completely independently of a mobile phone. Users can take photos, search for information on the Internet with the support of OCR technology, and use the device's image-text analysis system. The device offers students multiple functions for learning, bringing them a more naturally immersive learning experience. Moreover, grayscale thermal technology is used to print exercises, which can be pasted onto exercise books, thus boosting learning efficiency. PAPERANG is small and portable, so it can be used anywhere, anytime, making it possible to study at any hour of the day or night.