1. Introduction
The Phomemo M04AS is a versatile 4-inch portable thermal printer designed for various printing needs, including labels, photos, notes, and documents. Its compact and inkless design makes it an ideal tool for home, office, school, and business use. This manual provides detailed instructions to help you set up, operate, and maintain your printer effectively.

2. What's in the Box
- Phomemo M04AS Printer x1
- White Adhesive Paper x1
- Type-C Cable x1
- Operating Instructions x1
3. Key Features
- 4-Inch Portable Thermal Printer: Compact and stylish design, supporting 15mm/53mm/80mm/110mm thermal paper widths.
- High Resolution (300dpi): Utilizes inkless printing technology for clear and crisp prints.
- Easy and Smart App: Compatible with mobile phones and tablets (not computers), offering photo, document, webpage, OCR scanning, and label workshop functions with hundreds of free templates.
- Various Paper Styles: Supports over 50+ different paper types, including white, color, transparent, semi-transparent, and shine thermal paper, available in sticker or non-sticker formats.
- Multifunctional: Suitable for printing lists, documents, study notes, black and white photos, and stickers.

4. Setup
4.1 Loading Thermal Paper
The Phomemo M04AS supports various paper widths (15mm, 53mm, 80mm, 110mm). Ensure you use the correct paper size for your printing needs.
- Open the printer cover by gently pressing the release button.
- Insert the thermal paper roll into the designated slot, ensuring the printing side faces upwards.
- Pull a small length of paper out beyond the cutting edge.
- Close the printer cover firmly until it clicks into place.

Watch this video to see how to load different paper sizes into the Phomemo M04AS printer.
4.2 Connecting to the App
The Phomemo M04AS connects wirelessly via Bluetooth to your smartphone or tablet.
- Download the "Phomemo" app from your device's app store (iOS or Android).
- Turn on the Phomemo M04AS printer.
- Enable Bluetooth on your mobile device.
- Open the Phomemo app and follow the on-screen instructions to connect to your printer. The app will usually detect the printer automatically.
5. Operating Instructions
5.1 Using the Phomemo App
The Phomemo app is your primary interface for controlling the printer and creating content. It offers a wide range of features:
- Print Images: Select and print photos directly from your device's gallery.
- Notes: Create and print text notes, memos, and lists.
- Templates: Access a library of pre-designed templates for various purposes, such as to-do lists, labels, and decorative elements.
- Label Workshop: Design custom labels with different fonts, borders, and images.
- Document Print: Print PDF, Word, and TXT documents.
- Print Web: Print content directly from web pages.
- OCR: Convert images of text into editable text.
- Early Education: Features designed for educational printing, such as coloring pages and learning materials.

5.2 Printing Different Paper Sizes
The M04AS can adapt to different paper widths. When printing, ensure the paper roll is correctly installed and select the corresponding paper size within the Phomemo app's print settings for optimal results.
Learn how to switch between different paper sizes on your M04AS printer for various printing tasks.
5.3 Printing Photos and Notes
The M04AS excels at printing black and white photos and notes. For best photo quality, convert images to black and white before printing. Transparent thermal paper is recommended for clearer photo prints.

This video demonstrates how the Phomemo M04AS can be used as a study note printer.
6. Maintenance
6.1 Thermal Paper Care
Thermal prints can fade over time, especially when exposed to direct sunlight or excessive heat. To preserve your prints, store them in a cool, dry place away from direct light. Some specialized thermal papers offer longer print retention (e.g., up to 10 or 20 years).
6.2 Cleaning the Printer
To ensure optimal print quality and prolong the life of your printer, regularly clean the print head and paper path. Use a soft, lint-free cloth slightly dampened with isopropyl alcohol. Avoid using abrasive materials or harsh chemicals.
7. Troubleshooting
If you encounter issues with your Phomemo M04AS printer, try the following common troubleshooting steps:
- Printer Not Connecting: Ensure Bluetooth is enabled on your device and the printer is turned on and charged. Restart both the printer and your device, then try reconnecting via the app.
- Poor Print Quality: Check if the thermal paper is loaded correctly with the printing side facing up. Ensure the paper is not old or damaged. Clean the print head if prints appear faded or streaky.
- Paper Jams: Open the printer cover and carefully remove any jammed paper. Ensure the paper roll is properly seated and not too tight or loose.
- App Issues: Update the Phomemo app to the latest version. If problems persist, try reinstalling the app.
For more detailed troubleshooting or persistent issues, please refer to the official user guide PDF or contact Phomemo customer support.
8. Specifications
| Attribute | Value |
|---|---|
| Model Name | M04AS |
| Brand | Phomemo |
| Printing Technology | Thermal |
| Connectivity Technology | Bluetooth |
| Printer Output | Monochrome |
| Maximum Print Resolution | 300 dpi |
| Printer Media Size Maximum | 110mm (4 Inches) |
| Compatible Devices | Smartphones, Tablets |
| Control Method | App |
| Item Weight | 15.5 ounces |
| Product Dimensions | 7 x 4 x 2.7 inches |
| Batteries | 1 Lithium Polymer batteries required (included) |
9. Warranty & Support
9.1 Warranty Information
The Phomemo M04AS Portable Thermal Printer comes with a limited warranty. For specific details regarding warranty coverage and duration, please refer to the warranty card included in your product packaging or the official product page.
9.2 Customer Support
For any questions, technical assistance, or support needs, please visit the official Phomemo Store or refer to the comprehensive user guide PDF:
- Phomemo Store: Visit the Phomemo Store
- User Guide (PDF): Download User Guide





