1. Introduction
This manual provides essential instructions for the proper use and care of your NDYIN Self-Adhesive Thermal Paper. This thermal paper is designed for compatibility with D20, D21, and S1 mini label printers, offering a convenient solution for various labeling and printing needs.
2. Product Overview
The NDYIN Self-Adhesive Thermal Paper is a versatile printing medium. Each roll features a printing width of 57mm and a total length of 2.8 meters. This product is supplied in a box containing 3 rolls. It is designed to retain printed images for up to 10 years under optimal storage conditions. The paper is also BPA-free.

Image 2.1: NDYIN Self-Adhesive Thermal Paper rolls shown with a compatible mini printer and various printed labels.

Image 2.2: Detailed dimensions of the thermal paper rolls, indicating 57mm width and 2.8m length.
3. Compatibility
This thermal paper is specifically designed for use with the following mini label printers:
- D20 Mini Printer
- D21 Mini Printer
- S1 Mini Printer

Image 3.1: The thermal paper is compatible with D20, D21, and S1 mini printers, as shown with example prints.
4. Setup: Loading the Thermal Paper
To ensure proper printing and prevent paper jams, follow these steps when loading the thermal paper into your compatible mini printer:
- Open the paper compartment of your mini printer.
- Place the thermal paper roll into the printer holder. Ensure the roll is secured tightly within the compartment.
- Verify that the printing side is facing up. Incorrect orientation will result in blank prints.
- Close the paper compartment securely.
5. Operating: Usage Guidelines
5.1. Easy Tear Design
The thermal paper features a 2mm blank edge, facilitating easy tearing after printing. You can freely cut the printed labels to your preferred length and shape.
5.2. Adhesiveness
This self-adhesive thermal paper offers good adhesion, reducing concerns about labels falling off after application.
5.3. Versatile Applications
The thermal paper is suitable for a variety of uses, including:
- Creating study notes and flashcards.
- Organizing planning journals and diaries.
- Labeling items for organization.
- Developing custom patterns and designs.

Image 5.1: Practical applications of the thermal paper, including labeling packages, products, and storage containers.

Image 5.2: Example of using thermal paper prints to personalize and decorate a journal.
5.4. Customization and Printing Tips
- Coloring: The bright white surface allows you to color on your printed stickers to add vibrancy. Avoid using crayons, as they may not adhere well or could damage the surface.
- Photo Printing: For optimal photo printing results, select high-pixel images. This will ensure clearer and more detailed prints.

Image 5.3: Key features of the thermal paper, highlighting its durability against water, oil, and scratches, and its clean removal.
6. Maintenance and Storage
To maximize the lifespan and quality of your thermal paper, observe the following precautions:
- When not in use, store the thermal paper rolls in their original box to protect them from friction and potential damage.
- Avoid exposing the paper to direct sunlight, as this can cause fading over time.
- Store in a dry environment. High humidity can affect the paper's print quality and adhesive properties.
7. Troubleshooting
If you encounter issues with your thermal paper, consider the following:
- Blank Prints: Ensure the thermal paper is loaded with the printing side facing up in your printer.
- Poor Print Quality: For photos, ensure you are using high-pixel images. For general text, check that the printer's print head is clean and functioning correctly.
- Labels Not Adhering: Ensure the application surface is clean and dry. While the paper has good adhesiveness, extreme conditions or dirty surfaces can affect performance.
8. Specifications
| Feature | Detail |
|---|---|
| Printing Width | 57 mm |
| Roll Length | 2.8 meters |
| Rolls Per Box | 3 rolls |
| Image Retention Period | Up to 10 years (under optimal conditions) |
| Material Safety | BPA-free |
| Printing Technology | Thermal |
| Printer Output | Monochrome (Black ink) |
| Maximum Media Size | 57 millimeters |
| Sheet Size | 57 millimeters |





