1. Product Overview
The docooler PT280 is a compact and portable 58mm thermal receipt printer designed for various business applications. It offers high-speed and clear printing without the need for ink cartridges or ribbons, ensuring low operational costs. With versatile connectivity options including USB and Bluetooth, it is compatible with a wide range of operating systems and mobile applications.
Figure 1: PT280 Thermal Printer (Blue and Black models). This printer operates without ink cartridges or ribbons, reducing operational costs.
2. Package Contents
Please check the package to ensure all items are present and in good condition:
- 1 x PT280 Thermal Printer
- 1 x USB Cable (Type-C interface)
- 11 x Thermal Paper Rolls (57x30mm)
- 1 x User Manual (English)
Figure 2: Standard package contents including the printer, USB cable, and a thermal paper roll.
3. Printer Components
Familiarize yourself with the main components of your PT280 printer:
Figure 3: Labeled diagram of the PT280 printer's external components.
- Paper Container Cover: Protects the thermal paper roll.
- Power Indicator: Shows the power status of the printer.
- Power Button: Used to turn the printer on or off.
- Function Indicator: Provides status feedback (e.g., Bluetooth connection, error).
- Paper Feed Button: Manually advances the thermal paper.
4. Setup Guide
4.1. Charging the Printer
Before initial use, fully charge the printer. The built-in 1500mAh lithium battery provides approximately 7 hours of continuous printing or 7 days of standby time.
- Connect the provided USB Type-C cable to the printer's charging port.
- Connect the other end of the USB cable to a compatible USB power adapter (not included) or a computer's USB port.
- The Power Indicator will show charging status. A full charge typically takes 2-3 hours.
Figure 4: Battery specifications and performance.
4.2. Loading Thermal Paper
The PT280 printer uses 57mm wide thermal paper rolls with a maximum diameter of 40mm.
- Gently open the Paper Container Cover.
- Insert a new thermal paper roll into the compartment, ensuring the printing side of the paper faces the thermal print head.
- Pull a small amount of paper out beyond the print head.
- Close the Paper Container Cover firmly until it clicks into place.
- Press the Paper Feed Button to ensure the paper feeds correctly.
Figure 5: Printer with a loaded thermal paper roll, ready for printing.
4.3. Driver and Application Installation
The printer supports various operating systems and applications for seamless integration.
For Windows/MacOS:
- Download the necessary drivers from www.xmjprt.com.
- Follow the on-screen instructions to install the driver on your computer.
For Android Devices:
- Download the official app, 'Dlabel', by scanning the QR code in the user manual or searching on Google Play.
- The printer is also compatible with other apps such as caysnprinter Loyverse, BT Print, Kyte, and RawBT.
For iOS Devices:
- Download the app, 'POS-printer', by scanning the QR code in the user manual or searching on the App Store.
- Compatible with other apps like Kyte, Kahero POS, and Utak.
5. Operating Instructions
5.1. Power On/Off
- To Power On: Press and hold the Power Button until the Power Indicator lights up.
- To Power Off: Press and hold the Power Button until the Power Indicator turns off.
5.2. Connecting to Devices
The PT280 supports both USB and Bluetooth connections.
Figure 6: The printer offers 2-in-1 connectivity methods: USB for computers and Bluetooth for mobile devices.
USB Connection:
- Ensure the printer is powered on.
- Connect the USB Type-C cable from the printer to your computer.
- Your computer should detect the printer. If prompted, select the installed driver.
Bluetooth Connection:
The printer supports Bluetooth 2.0 for Android and Bluetooth 4.0 for iOS.
- Ensure the printer is powered on and within range of your mobile device.
- On your mobile device, go to Bluetooth settings and search for available devices.
- Select the printer (usually named 'PT280' or similar) from the list to pair.
- Once paired, open your printing application and select the PT280 as the target printer.
5.3. Printing
Once connected and configured with your application, you can initiate printing from your device. The printer will automatically feed and cut the paper after printing.
Figure 7: The PT280 printer demonstrates strong compatibility with iOS, Android, Windows, and MacOS systems.
Figure 8: Example of a high-speed and clear receipt printout, including barcode support.
6. Maintenance
6.1. General Cleaning
- Use a soft, dry cloth to clean the exterior of the printer.
- For the thermal print head, use a cotton swab lightly dampened with isopropyl alcohol. Ensure the printer is off and cool before cleaning. Allow it to dry completely before use.
- Regularly remove any paper dust or debris from the paper compartment.
6.2. Battery Care
- Avoid fully discharging the battery frequently.
- If storing the printer for an extended period, charge it to about 50% and store in a cool, dry place. Recharge every few months to prevent deep discharge.
6.3. Thermal Paper Storage
- Store thermal paper in a cool, dry place away from direct sunlight and heat to preserve print quality and longevity.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer does not power on | Low battery; Power button not pressed correctly | Charge the printer; Press and hold the Power Button for a few seconds. |
| No printing or blank output | Paper loaded incorrectly; Out of paper; Print head dirty | Re-load paper with printing side facing up; Replace paper roll; Clean the thermal print head. |
| Poor print quality | Low battery; Print head dirty; Low quality thermal paper | Charge the printer; Clean the print head; Use recommended thermal paper. |
| Cannot connect via Bluetooth | Printer not in pairing mode; Device Bluetooth off; Incorrect app selected | Ensure printer is on and discoverable; Turn on Bluetooth on your device; Verify app compatibility and selection. |
| Cannot connect via USB | Driver not installed; Faulty USB cable/port | Install correct drivers from www.xmjprt.com; Try a different USB cable or port. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | PT280 (Code: OS6559BL-3) |
| Print Method | Line Thermal Printer |
| Print Speed | 50-80mm/s (20ppm) |
| Resolution | 8 dots/mm (203dpi) |
| Printing Width | 48mm |
| Paper Width | 57mm ± 0.5mm |
| Max Paper Roll Diameter | 40mm |
| Paper Roll Inner Diameter | 13mm (min.) |
| Double-sided Printing | No |
| Supports Network Printing | Wired/Wireless |
| Paper Feed Mode | Roll Feed |
| Interface | Bluetooth (BT2.0 Android, BT4.0 iOS), Micro USB |
| Barcode Type | 1D: UPC-A, UPC-E, EAN-13, EAN-8, CODE39, CODE93, CODE128, CODABAR, ITF25 2D: QR CODE, PDF417 |
| Command Set | ESC/POS Compatible |
| Battery | 1500mAh/7.4V Built-in Lithium Battery |
| Charging Time | Approx. 2-3 hours |
| Continuous Printing Time | Approx. 7 hours |
| Standby Time | Approx. 7 days |
| Life Cycle Time | 50km (printing density under 12.5%) / 100 million pulses |
| Printer Dimensions (L x W x H) | 78 x 105 x 47mm |
| Printer Weight | 227g / 8oz |
| Origin | Mainland China |
9. User Tips
- App Compatibility: Always ensure you are using an officially supported application for your operating system (e.g., 'Dlabel' for Android, 'POS-printer' for iOS) or a compatible third-party app.
- Battery Management: For optimal battery life and performance, avoid letting the printer's battery completely drain before recharging.
- Paper Quality: Using high-quality thermal paper can significantly improve print clarity and extend the life of the print head.
- Connectivity Check: If experiencing connection issues, try restarting both the printer and your connecting device (phone/computer) and re-pairing Bluetooth or re-connecting the USB cable.
- Application: This printer is ideal for various applications such as cashier tickets, delivery tickets in supermarkets, shopping malls, and restaurants.
Figure 9: Wide application scenarios for the PT280 printer.
10. Warranty and Support
While specific warranty details are not provided in this manual, the printer is designed for a long operational life with a print head life cycle of 50km (at 12.5% printing density) or 100 million pulses.
For any technical assistance, troubleshooting beyond this manual, or inquiries regarding your product, please contact the seller or your point of purchase for support.
