1. Producte acabatview
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. Contingut del paquet
Si us plau, reviseu el paquet per assegurar-vos que tots els articles hi són i estan en bon estat:
- 1 x PT280 Thermal Printer
- 1 x USB Cable (Type-C interface)
- 11 x Thermal Paper Rolls (57x30mm)
- 1 manual d'usuari (anglès)

Figure 2: Standard package contents including the printer, USB cable, and a thermal paper roll.
3. Components de la impressora
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.
- Indicador d'alimentació: Shows the power status of the printer.
- Botó d'encesa: S'utilitza per encendre o apagar la impressora.
- Indicador de funció: Provides status feedback (e.g., Bluetooth connection, error).
- Botó d'alimentació de paper: Manually advances the thermal paper.
4. Guia de configuració
4.1. Càrrega de la impressora
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.
- Connecteu l'altre extrem del cable USB a un adaptador de corrent USB compatible (no inclòs) o al port USB d'un ordinador.
- The Power Indicator will show charging status. A full charge typically takes 2-3 hours.

Figure 4: Battery specifications and performance.
4.2. Càrrega de paper tèrmic
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.
Per a Windows/MacOS:
- Download the necessary drivers from www.xmjprt.com.
- Follow the on-screen instructions to install the driver on your computer.
Per a dispositius Android:
- 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.
Per a dispositius iOS:
- 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. Instruccions de funcionament
5.1. Encendre/apagar
- Per encendre: Press and hold the Power Button until the Power Indicator lights up.
- Per apagar: Press and hold the Power Button until the Power Indicator turns off.
5.2. Connexió a dispositius
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.
Connexió USB:
- Assegureu-vos que la impressora estigui engegada.
- Connect the USB Type-C cable from the printer to your computer.
- Your computer should detect the printer. If prompted, select the installed driver.
Connexió Bluetooth:
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.
- Al dispositiu mòbil, vés a la configuració de Bluetooth i busca els dispositius disponibles.
- 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. Impressió
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.

Figura 8: Example of a high-speed and clear receipt printout, including barcode support.
6. Manteniment
6.1. Neteja general
- Use a soft, dry cloth to clean the exterior of the printer.
- For the thermal print head, use a cotton swab lightly damphumitejat amb alcohol isopropílic. Assegureu-vos que la impressora estigui apagada i freda abans de netejar-la. Deixeu-la assecar completament abans d'utilitzar-la.
- Regularly remove any paper dust or debris from the paper compartment.
6.2. Cura de la bateria
- Eviteu descarregar completament la bateria amb freqüència.
- 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. Emmagatzematge de paper tèrmic
- Store thermal paper in a cool, dry place away from direct sunlight and heat to preserve print quality and longevity.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La impressora no s'encén | Bateria baixa; el botó d'engegada no s'ha premut correctament | 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. |
| Poca qualitat d'impressió | Low battery; Print head dirty; Low quality thermal paper | Charge the printer; Clean the print head; Use recommended thermal paper. |
| No es pot connectar mitjançant 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. Especificacions
| Característica | Detall |
|---|---|
| Model | PT280 (Code: OS6559BL-3) |
| Mètode d'impressió | Impressora tèrmica de línia |
| Velocitat d'impressió | 50-80mm/s (20ppm) |
| Resolució | 8 punts/mm (203 ppp) |
| Amplada d'impressió | 48 mm |
| Amplada del paper | 57 mm ± 0.5 mm |
| Max Paper Roll Diameter | 40 mm |
| Paper Roll Inner Diameter | 13 mm (min.) |
| Impressió a doble cara | No |
| Admet la impressió en xarxa | Amb cable/Sense fil |
| Mode d'alimentació de paper | Alimentació en rotlle |
| Interfície | Bluetooth (BT2.0 Android, BT4.0 iOS), Micro USB |
| Tipus de codi de barres | 1D: UPC-A, UPC-E, EAN-13, EAN-8, CODE39, CODE93, CODE128, CODABAR, ITF25 2D: QR CODE, PDF417 |
| Conjunt d'ordres | ESC/POS Compatible |
| Bateria | 1500mAh/7.4V Built-in Lithium Battery |
| Temps de càrrega | Aprox. 2-3 hores |
| Continuous Printing Time | Aprox. 7 hores |
| Temps d'espera | Aprox. 7 dies |
| Temps del cicle de vida | 50km (printing density under 12.5%) / 100 million pulses |
| Printer Dimensions (L x W x H) | 78 x 105 x 47 mm |
| Pes de la impressora | 227 g / 8 oz |
| Origen | Xina continental |
9. Consells d'usuari
- Compatibilitat de l'aplicació: 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.
- Gestió de la bateria: For optimal battery life and performance, avoid letting the printer's battery completely drain before recharging.
- Qualitat del paper: Using high-quality thermal paper can significantly improve print clarity and extend the life of the print head.
- Comprovació de connectivitat: 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.
- Aplicació: 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. Garantia i Suport
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.



