EBTOOLS Thermal Photo Printer - Need to optimize code values Monochrome

1. Portable Printer: Print all your study notes, translations, and exercises quickly and easily with this printer. The compact size allows you to carry it in your pocket, making language learning and work more efficient 2. Abundant Materials: This portable thermal printer provides a wealth of innovative materials and templates. Upload your own creativity to the community to encourage and support each other 3. One Click Printing: Search for questions on the APP, snap a question photo on your phone, and print quickly. Covering analysis and key points from primary to high school subjects, with accurate matching 4. Long Endurance: This portable printer has built in 1000mAh battery, no power consumption when turned off. Can be charged via any USB interface, convenient and fast, accompanying you on your journey 5. Wide Applications: Suitable for printing words, notes, translations, and exercises. A wealth of rich content makes communicating and learning more effective. The BT connection and simple use offer convenience Specification: Item Type: Portable Printer Product Material: ABS Battery: 1000mAh Li Battery (Built in) Applicable Thermal Paper: Approx. 57 x 25mm / 2.2 x 1in How to Use: Turn on the device to start using it. PackageList: 1 x Portable Printer 1 x Charging Cable