Printer Pairing via Printed Codes Without Display
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Printing devices without display screens face challenges in simplifying the pairing process with external devices for wireless communication, requiring improved user convenience and security.
Innovation Solution
A printing device configuration that includes a print unit, wireless communication unit, and control unit to print pairing-related information on a recording medium, allowing for secure pairing by changing modes based on specific conditions or operations, and enabling secure authentication methods.
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 on a recording medium. Instead of relying on a display device to show pairing codes or instructions, the system prints this information on paper or another tangible medium, allowing users to reference it during the pairing process with an external device.
Solution Approach 2:
The patent introduces a recording medium as an intermediary between the control unit and the user. The pairing information is transmitted from the control unit to the recording medium via the print unit, serving as a physical mediator that bridges the gap caused by the absence of a display device.
2Adaptability or versatility
If the printing device allows pairing in all modes, then connectivity is maximized, but security risks increase from unauthorized pairing
Solution Approach 1:
The patent implements dynamic pairing availability by introducing multiple operational modes (first mode and second mode). The control unit selectively enables or disables pairing based on the current mode, allowing the system to adapt its pairing behavior to different situations rather than maintaining a static pairing policy.
Solution Approach 2:
The patent changes the operational parameter of pairing availability by switching between different modes. In the first mode, pairing is restricted or disabled, while in the second mode, pairing is enabled. This parameter change allows the system to balance security and adaptability by controlling under which conditions pairing can occur.
3Ease of operation
If pairing information is displayed on an LCD panel, then user convenience is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces the display device with a copying function. Instead of displaying pairing information on an LCD panel, the control unit sends the information to the print unit, which creates a physical copy on a recording medium. This eliminates the need for a display device while maintaining the ability to present pairing information to the user.
Solution Approach 2:
The patent substitutes the mechanical/electronic display system (LCD panel) with a printing system. The display function is replaced by the print unit creating physical copies of information, replacing an electronic visual display mechanism with a mechanical printing process.
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.