Multifunction Printer Web Server Firewall Control

The patent introduces a web browser section and web server section as intermediaries between the external PC and the multifunction printer control system. The external PC communicates control instructions through a web browser to a web server on the printer, which then processes and executes the control commands. This intermediary web-based communication layer allows control to pass through the firewall while maintaining security, as the firewall can be configured to allow web traffic while blocking direct access to control functions.

The patent implements a web server section within the multifunction printer that serves web pages and control interfaces directly. Instead of requiring external browser extensions, the printer itself provides the necessary web-based control interface through its embedded web server. This self-service approach allows the printer to maintain full control functionality using standard web browsers without requiring any external extensions or plugins, thereby eliminating maintenance issues related to browser version upgrades.

The patent employs a universal web-based control interface that can be accessed by any multifunction printer through the web server section. The web interface uses standard HTML and web technologies that are universally supported, allowing the same control mechanism to work across different printer models without requiring model-specific customization. The web server can dynamically generate appropriate control interfaces based on the specific printer model, providing adaptability without requiring separate development efforts for each model.