Simple Printer Bridge
About
Simple Printer Bridge is a Python-based solution that enables web applications to print directly to USB, serial, network, and file printers. It serves as an elegant alternative to QZ Tray, eliminating the need for Java and certificate signing while providing a simpler setup process.
Use Case
Perfect for businesses and applications that need to print from web interfaces, especially those with multiple printer setups:
- Counter/Receipt Printers - For customer receipts and invoices
- Kitchen/Order Printers - For restaurant order management systems
- Multiple Locations - Different printers for different areas or departments
- Point of Sale Systems - Web-based POS systems requiring direct printer access
Key Features
- ✅ No Java required - Pure Python implementation
- ✅ No certificate signing needed
- ✅ Simpler setup process
- ✅ Multiple printer support - Connect to several printers simultaneously
- ✅ Multiple connection types - USB, Serial (COM), Network, and File printers
- ✅ System tray mode for background operation
- ✅ Auto-start on Windows boot
- ✅ Easy-to-use JavaScript client library
- ✅ Receipt formatting support
Technologies Used
Quick Start
The server can be started in two modes:
- System Tray Mode (Recommended): Runs in the background with a system tray icon
- Console Mode: Runs in a console window for debugging
Once started, the server runs on http://localhost:8888 and provides a simple API for web applications to connect and print to local printers.
License
This project is licensed under the MIT License.