1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your GOOJPRT 58H 58mm Thermal POS Printer. Please read this manual thoroughly before using the printer to ensure proper functionality and to extend the product's lifespan. This thermal printer is designed for various point-of-sale applications, offering fast and clear printing of receipts and tickets.
2. Package Contents
Carefully unpack the box and ensure all items are present and in good condition. If any items are missing or damaged, please contact your vendor.
- GOOJPRT 58H Thermal POS Printer
- User Manual
- Thermal Paper Roll
- USB Cable
- Power Cable

3. Product Overview
Familiarize yourself with the main components and features of your printer.

- Paper Compartment Cover: Protects the thermal paper roll.
- Paper Outlet: Where printed receipts exit the printer.
- Eject Key: Used to open the paper compartment cover.
- Power Button: Turns the printer on/off.
- Power Indicator: Shows the power status.
- Status Indicator: Indicates printer status (e.g., error, paper out).
- Feed Button: Advances the paper manually.

- Power Port: Connects to the power adapter.
- USB Port: Connects to a computer or other host device.
- LAN Port (Optional): For wired network connectivity.
- Cash Drawer Port (Optional): For connecting a cash drawer.
4. Specifications
| Feature | Specification |
|---|---|
| Printing Method | Direct Thermal Line |
| Printing Speed | 90mm/s |
| Resolution | 203 DPI (8 dots/mm, 576 dots/line) |
| Effective Printing Width | 58mm |
| Paper Type | Ordinary Thermal Paper |
| Paper Width | 57.5 ± 0.5mm |
| Max Paper Roll Diameter | 60mm |
| Paper Thickness | 0.06 to 0.07mm |
| Paper Supply Method | Drop-in paper load |
| Interface | USB, Bluetooth (SPP/Android/BLE/iOS), LAN, Serial, Parallel (model dependent) |
| Character Set | ANK, GB18030 (Chinese), supports 45 international character sets |
| Print Font | ANK: 12x24, 9x17; Chinese: 24x24 |
| Characters per Line | Font A: 32 columns, Font B: 42 columns |
| Barcode Types | UPC-A, UPC-E, EAN-8, EAN13, CODE39, ITF, CODABAR, CODE93, CODE128, QR CODE |
| Instruction Set | ESC/POS compatible |
| Input Buffer | 32k bytes |
| NV Flash | 64k bytes |
| Power Supply (Adapter) | Input: AC 100-240V (±10%), 50~60Hz; Output: DC 24V, 2A (or DC 12V, 1.5A depending on model) |
| Cash Drawer Output | DC 24V/1A |
| Print Head Life | 50KM |
| Auto Cutter Life | 1,000,000 cuts (Guillotine type, Full/Partial cut) |
| MCBF (Mean Cycles Between Failure) | 50 million lines |
| Dimensions (L×W×H) | 180mm × 130mm × 110mm |
| Weight | 0.56kg (Net), 1kg (Gross) |
| Work Environment | Temperature: 0~45°C; Humidity: 10~80% |
| Storage Environment | Temperature: -10~60°C; Humidity: 10~80% |

5. Setup
5.1 Loading Thermal Paper
- Press the Eject key to open the paper compartment cover.
- Insert the thermal paper roll into the compartment with the printing side facing up.
- Pull a small amount of paper out past the paper outlet.
- Close the paper compartment cover firmly until it clicks into place.

5.2 Connecting the Power Adapter
- Ensure the printer is turned off.
- Connect the power cable to the power adapter.
- Plug the power adapter into the printer's power port (located at the rear).
- Plug the power adapter into a suitable electrical outlet (AC 100-240V).
5.3 Connecting to a Host Device
The printer supports multiple connection types:
5.3.1 USB Connection
- Connect one end of the USB cable to the printer's USB port.
- Connect the other end of the USB cable to your computer or POS system.
- Install the printer driver on your computer. Drivers are typically provided on a CD or can be downloaded from the manufacturer's website. The printer supports Windows 2000/XP/7/VISTA.
5.3.2 Bluetooth Connection (for USB+Bluetooth models)
- Ensure the printer is powered on.
- Turn on Bluetooth on your mobile phone or tablet.
- Search for available Bluetooth devices and select the printer (e.g., 'KP58B-U').
- Pair the devices. You may be prompted for a PIN (usually '0000' or '1234').
- Once paired, open your printing application and select the printer to begin printing.

5.3.3 LAN Connection (for models with Ethernet port)
- Connect an Ethernet cable from your network router/switch to the printer's LAN port.
- Configure network settings on the printer (refer to the advanced settings in the full driver manual if needed) and your host device.
6. Operating Instructions
6.1 Power On/Off
- To power on: Press the Power button. The power indicator light will illuminate.
- To power off: Press the Power button again. The power indicator light will turn off.
6.2 Self-Test
A self-test can be performed to check the printer's hardware functionality and print quality.
- Ensure the printer is off and paper is loaded.
- Hold down the FEED button.
- While holding FEED, press the Power button to turn on the printer.
- Release the FEED button once the printer starts printing the self-test page.
6.3 Printing
Once connected and drivers are installed (for USB/LAN) or paired (for Bluetooth), you can print from your application.
- Open the application from which you wish to print (e.g., POS software, text editor).
- Select the print option within the application.
- Choose the GOOJPRT 58H printer from the list of available printers.
- Adjust any necessary print settings (e.g., paper size, orientation) and click 'Print'.
6.4 Supported Software
The printer is compatible with various software applications, including common POS systems, word processors, and spreadsheet programs, as long as they support standard printer drivers or ESC/POS commands.

7. Maintenance
Regular maintenance helps ensure optimal performance and extends the life of your printer.
7.1 Cleaning the Print Head
The thermal print head should be cleaned periodically to prevent print quality issues.
- Turn off the printer and disconnect the power cable.
- Open the paper compartment cover.
- Use a cotton swab lightly dampened with isopropyl alcohol to gently wipe the thermal print head surface.
- Allow the print head to dry completely before closing the cover and reconnecting power.
7.2 Cleaning the Paper Path
Dust and paper debris can accumulate in the paper path, potentially causing paper jams or print issues.
- Turn off the printer and disconnect the power cable.
- Open the paper compartment cover.
- Use a soft, dry cloth or a small brush to remove any dust or paper fragments from the paper path.
- Close the cover and reconnect power.
7.3 Paper Roll Replacement
Replace the thermal paper roll when the 'Paper Out' indicator lights up or when print quality degrades due to low paper.
- Press the Eject key to open the paper compartment cover.
- Remove the empty paper core or remaining small roll.
- Insert a new thermal paper roll, ensuring the leading edge is straight and the printing side faces up.
- Pull a small amount of paper out and close the cover firmly.
8. Troubleshooting
This section addresses common issues you might encounter with your printer.
8.1 Printer Not Powering On
- Check if the power cable is securely connected to both the printer and the power outlet.
- Ensure the power outlet is functional.
- Verify that the power adapter is correctly connected and supplying power.
8.2 No Print Output / Blank Pages
- Check if the thermal paper is loaded correctly and not upside down (printing side should face the print head).
- Ensure there is enough thermal paper in the roll.
- Verify that the printer is properly connected to the host device (USB, Bluetooth, or LAN).
- For USB/LAN connections, ensure the correct printer driver is installed and selected.
- For Bluetooth, confirm the printer is paired and selected in your application.
- Perform a self-test to check if the print head is functioning.
8.3 Poor Print Quality
- Clean the thermal print head as described in the Maintenance section.
- Ensure you are using high-quality thermal paper.
- Check print density settings in your printer driver or application.
8.4 Paper Jams
- Turn off the printer and open the paper compartment cover.
- Carefully remove any jammed paper. Avoid tearing the paper inside the mechanism.
- Ensure the paper roll is inserted correctly and not too tight or loose.
- Clean the paper path to remove any debris.
9. User Tips
- Always use high-quality thermal paper to ensure clear prints and prolong print head life.
- Keep the printer in a clean, dust-free environment to prevent internal contamination.
- When connecting via Bluetooth, ensure your mobile device's Bluetooth is enabled and the printer is discoverable.
- Regularly check for driver updates for your operating system to ensure compatibility and optimal performance.
- If using a cash drawer, ensure it is connected to the correct port and configured in your POS software.
10. Warranty and Support
The GOOJPRT 58H Thermal POS Printer typically comes with a 1-year warranty. For specific warranty terms and conditions, please refer to your purchase documentation or contact your retailer. For technical support, driver downloads, or further assistance, please visit the official GOOJPRT website or contact their customer service.





