MR.IN P31D 3-Inch Ultra HD Error Printing Machine No Phone Needed Instant Print for High School Students AI Error Learning Printer Compatible with 2-Inch Paper

Product Specifications

Nine major functions to help children improve scores quickly

Special angle trigonometric function values (e.g., 30°, 45°, 60°)

Operates independently without a phone or WiFi

Ultra-clear camera with built-in fill light for clear shooting

Intelligent touch large screen with visualized operation and preview of printing effects

Instant photo capture and printing ("shoot and print" in seconds)

Adjustable photo effects and font sizes for clearer and larger text

AI one-key handwriting erasure for cleaner and faster correction

Multi-question printing to save time and paper (paper saving approx. 66%-75%)

High-definition thermal printing at 300 dpi resolution

Supports wide-format printing with 2-inch and 3-inch paper sizes

Environmentally safe printing paper without BPA or BPS, SGS certified eye-protection technology

Built-in paper tray with automatic paper output, no manual paper feeding required

No ink needed for printing

Supports 4G SIM card for use without WiFi, suitable for home, school, study rooms, and tutoring centers