Printer Pairing via Printed Authentication Codes
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Solution Overview
Problem
Existing printing devices without display screens face challenges in simplifying the pairing process with external devices for wireless communication, which can lead to user inconvenience and potential security risks.
Innovation Solution
A printing device configuration that includes a print unit, a wireless communication unit, and a control unit, which changes modes to enable pairing by printing pairing-related information on a recording medium in response to specific conditions or operations, ensuring secure pairing and allowing for authentication method changes based on security requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a printing device without a display device pairs with an external device using conventional methods, then wireless communication can be established, but the pairing process becomes complex and user-unfriendly
Solution Approach 1:
The patent uses the print unit to create a physical copy of pairing information (pairing ID, authentication code) on a recording medium instead of displaying it on a screen. This allows users to read the pairing information directly from the printed output, simplifying the pairing process for devices without display capabilities.
Solution Approach 2:
The patent introduces an intermediary role of the printed recording medium that bridges the printing device and external device during pairing. The printed pairing information serves as a mediator that enables authentication and connection establishment without requiring a display interface.
2Ease of operation
If the printing device allows pairing at all times, then user convenience is improved, but security risks increase due to potential unauthorized connections
Solution Approach 1:
The patent implements dynamic pairing mode switching between a first mode (pairing prohibited) and a second mode (pairing permitted). The control unit changes modes based on specific conditions such as user operations or timing, allowing the device to adapt its pairing availability dynamically rather than maintaining a static pairing policy.
Solution Approach 2:
The patent employs periodic pairing opportunities by transitioning between pairing-prohibited and pairing-permitted modes at specific intervals or upon detecting certain operations. This creates structured, periodic windows for pairing that balance accessibility with security by limiting when pairing can occur.
3Ease of operation
If pairing information is displayed on an LCD panel, then user convenience is improved, but the device complexity and cost increase
Solution Approach 1:
The patent replaces the display function with a printing function, creating a physical copy of the pairing information on a recording medium. This eliminates the need for an LCD panel while maintaining the ability to present pairing information to the user through the existing print unit.
Solution Approach 2:
The patent makes the print unit serve a dual function: both its original printing function and a display function for pairing information. By using the existing print unit for both purposes, the device avoids adding a separate display component while maintaining information presentation capability.
Data Source
AI summary
A printing device has a print unit for printing on roll paper; a wireless communication unit for communicating wirelessly with a paired control device; and a controller for receiving print data by wireless communication from the control device, and controlling the print unit based on the received print data. When changing from a pairing-disabled mode to a pairing-enabled mode, the controller controls the print unit to print pairing-related information on roll paper, does not process pairing in the pairing-disabled mode, and processes pairing when a pairing request is received in the pairing-enabled mode.