1. परिचय
The GOOJPRT QR203 is a compact and efficient direct thermal printer module designed for various commercial applications requiring low-noise and fast printing. This module supports 58mm thermal paper rolls and offers both RS-232C and TTL serial interfaces for versatile integration. It is capable of printing graphics, curves, and characters, making it suitable for mobile receipt printing and other embedded solutions.
Product. उत्पाद सुविधाहरू
- Low-noise direct thermal printing method.
- Fast printing speed (50mm/sec; max. 80mm/sec).
- Supports max. 40mm diameter paper roll (approx. 16-20 meters).
- Serial interfaces: RS-232C and TTL.
- Rich graphics, curves, and character print functions.
- Easy paper loading structure.
- Supports 5V-9V wide power voltage.
3. सेटअप
3.1 अनप्याकिंग र निरीक्षण
Carefully remove the printer module and its accessories from the packaging. Verify that all components are present:
- 1 x GOOJPRT QR203 Printer Module
- 2 x Connection Cables (power and data)
- १ x थर्मल पेपर रोल
१.३ पावर र डेटा जडान
The printer module requires a DC 5-9V, 2A power input. Connect the appropriate power cable to the module's power input port. For data communication, connect one of the provided serial interface cables (RS-232C or TTL) to your host device.
३.२ पेपर रोल स्थापना गर्ने
Follow these steps to install the thermal paper roll:
- Pull the lid of the printer module upwards to open it.
- Open the paper storehouse compartment.
- Insert the thermal paper roll into the compartment, ensuring the paper feeds out from the top and is aligned correctly.
- ढक्कनलाई बलियोसँग बन्द गर्नुहोस् जबसम्म यो ठाउँमा क्लिक हुँदैन।
4. सञ्चालन निर्देशनहरू
Once the printer module is connected and paper is loaded, it is ready to receive print commands from your host system via the serial interface. The module features a low-noise direct thermal printing mechanism, ensuring quiet and efficient operation.
4.1 आधारभूत सञ्चालन
- पावर अन/अफ: The module powers on when connected to a compatible power source (DC 5-9V, 2A).
- सूचक बत्तीहरू: Observe the indicator lights on the module for status (e.g., power, error). A red light typically indicates an error or no paper.
- Feed Buttons: The blue buttons on the top panel are typically used for paper feeding or self-test functions. Pressing one usually advances the paper.
4.2 मुद्रण
Send print commands from your application to the printer module via the configured serial interface (RS-232C or TTL). The printer will automatically detect and print text, graphics, or curves as instructed. Ensure your software is configured to match the printer's baud rate (9600) and character settings (ANK: 9*17, 12*24; GBK: 24*24).
5. मर्मतसम्भार
Regular maintenance ensures optimal performance and extends the lifespan of your printer module.
४.१ प्रिन्ट हेड सफा गर्ने
The thermal print head is a critical component. If print quality degrades (e.g., faint lines, missing dots), clean the print head using a soft, lint-free cloth dampened with isopropyl alcohol. Ensure the printer is powered off and cool before cleaning. Avoid touching the print head directly with bare hands.
.5.2.१ सामान्य हेरचाह
- Keep the printer module free from dust and debris.
- मोड्युललाई अत्यधिक तापक्रम वा आर्द्रतामा पर्दाफास नगर्नुहोस्।
- Use only high-quality thermal paper to prevent damage to the print head.
- The life of the printing head is rated for 50km of printing.
T. समस्या निवारण
This section addresses common issues you might encounter with your printer module.
| समस्या | सम्भावित कारण | समाधान |
|---|---|---|
| प्रिन्टरले प्रतिक्रिया दिइरहेको छैन | No power; incorrect cable connection; incorrect serial port settings. | Check power supply (DC 5-9V, 2A). Ensure data cables are securely connected. Verify serial port settings (baud rate 9600). |
| No paper feed | Paper roll empty or incorrectly loaded; paper jam. | Replace paper roll or re-load correctly (refer to Section 3.3). Clear any jammed paper. |
| Faint or incomplete print | Low quality thermal paper; dirty print head; print head worn out. | Use recommended thermal paper. Clean the print head (refer to Section 5.1). If print head is worn, replacement may be necessary. |
| रातो सूचक प्रकाश | Paper out; print head overheating; error condition. | Check and replace paper. Allow printer to cool down. Power cycle the module. |
7. निर्दिष्टीकरणहरू
| सुविधा | निर्दिष्टीकरण |
|---|---|
| प्रिन्ट विधि | Thermal direct line printing |
| Paper Loading Method | सजिलो कागज लोड हुँदै |
| कागज चौडाइ | 57mm |
| प्रिन्ट चौडाइ | 48mm |
| संकल्प | 8 dots/mm (384 dots/line), 203dpi |
| Life of Printing Head | 50 किमी |
| मुद्रण गति | 50mm/sec.; max.: 80mm/sec. (voltagई ५ वी) |
| Character Size (ANK) | 9*17, 12*24 |
| Chinese Character Fonts (GB18030) | 12*24 or 24*24 dots |
| Outline Dimension (W*D*H) | 76.8 * 77.4 * 47.6 मिमी |
| Installation Dimension (W*D) | ५.५ * २.१ मिमी |
| Embedded Depth | 34.65mm |
| Paper Roll Specification | Width: 58mm, Max. diameter: 40mm |
| इन्टरफेस | Serial (RS232, TTL) |
| बाउड दर | 9600 |
| इनपुट पावर | DC5-9V, 2A |
| सञ्चालन तापमान | 0°C ~ 55°C |
| भण्डारण तापमान | -25°C ~ 70°C |
| सञ्चालन आर्द्रता | 10°C ~ 80°C |
| भण्डारण आर्द्रता | 10°C ~ 90°C |
| आन्तरिक मेमोरी | 128KB |
| आवेदन | वाणिज्य को लागी |
| प्रयोग गर्नुहोस् | Label Maker (Universal ticket printer) |
| नेटवर्क प्रिन्टिङलाई समर्थन गर्दछ | तार |
| डबल-पक्षीय मुद्रण | छैन |
१.६। प्रयोगकर्ता सुझावहरू
- For optimal performance, ensure the power supply is stable and within the specified 5-9V range.
- When integrating into a system, double-check the serial communication settings (baud rate, data bits, parity, stop bits) to match the printer's default or configured settings.
- Always use good quality thermal paper to prevent premature wear of the print head and ensure clear prints.
9. वारेन्टी र समर्थन
This product is covered by the "Shop's Three Guarantees" policy. For any issues or support inquiries, please contact the seller directly. Keep your purchase records for warranty claims.
For further assistance, you may refer to the seller's store for contact information or additional resources.





