Printer Control Unit Wireless Connection Termination
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Solution Overview
Problem
Existing wireless printing devices require tedious operations to terminate wireless connections, which complicates the process and increases customer wait times when switching between connections.
Innovation Solution
A printing device and system that includes a control unit capable of prioritizing communication termination commands, allowing for quick and efficient termination of wireless connections upon receiving a command, either by executing the command immediately or after receiving a response from the external device, enabling seamless switching between connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the printer waits for explicit termination commands from the external device, then the wireless connection is maintained stable, but the connection termination process becomes tedious and time-consuming
Solution Approach 1:
The printer automatically terminates the wireless connection without requiring explicit commands from the external device. The control unit monitors print task completion status and autonomously executes connection termination, making the system self-sufficient and eliminating the need for user intervention in the termination process
Solution Approach 2:
The printer prepares for connection termination in advance by monitoring the completion status of print tasks. When printing is detected to be complete, the control unit proactively initiates the connection termination sequence, ensuring the connection is closed promptly without waiting for additional external commands
2Speed
If the printer executes connection termination immediately upon receiving the command, then the termination speed increases, but the reliability of connection stability during printing may be compromised
Solution Approach 1:
The control unit continuously monitors the printing task status in advance and pre-preares for connection termination. When printing completion is detected, the system immediately initiates the termination sequence without delay, ensuring both speed and reliability by basing the timing decision on verified print completion status
Solution Approach 2:
The control unit establishes a feedback loop that continuously monitors printing task completion status. This feedback mechanism ensures the printer only terminates the connection when printing is definitively complete, maintaining connection stability during printing while enabling rapid termination afterward
3Reliability
If the printer maintains the wireless connection open after printing, then the connection remains stable for potential reconnection, but the device complexity increases due to additional control logic
Solution Approach 1:
The control unit pre-establishes the connection termination timing based on print task completion detection. By preparing the termination action in advance based on monitored printing status, the system achieves reliable connection closure without requiring complex real-time decision logic or multiple control layers
Solution Approach 2:
The printer autonomously manages connection termination based on its own monitoring of print task completion. This self-service approach eliminates the need for complex control logic by having the printer itself determine when termination is appropriate, simplifying the overall control architecture while maintaining connection reliability
Data Source
AI summary
Terminating a wireless connection is simplified. A printer has a print unit configured to print on a recording medium; a wireless communication unit configured to connect wirelessly and communicate wirelessly with an external device; and a control unit configured to control the print unit based on print data received from the external device, and execute a communication termination process to terminate the wireless connection when a command instructing terminating the wireless connection is received from the external device.