Printer Group Failover for Information Transmission
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Solution Overview
Problem
In device selection systems, when a representative printer encounters a problem, it fails to provide information to clients, leading to a disruption in information collection and transmission from other connected printers.
Innovation Solution
A printing device configuration that allows another printer to collect and transmit information to an external server when the primary printer is unable to do so, preventing redundant queries and ensuring continuous information flow by designating a substitute printer within the same group.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a representative printer is designated to collect and transmit information from multiple printers, then information transmission efficiency is improved, but system reliability deteriorates when the representative printer encounters problems
Solution Approach 1:
The patent introduces a server as an intermediary that coordinates information collection and transmission. The server receives information from printers, manages the representative printer designation, and handles failover scenarios, thereby maintaining system reliability while preserving transmission efficiency through centralized coordination
Solution Approach 2:
The patent implements dynamic replacement of the representative printer function. When the designated representative printer encounters problems, the system dynamically selects another printer from the group to take over the information collection and transmission role, ensuring continuous operation and maintaining both efficiency and reliability
2Reliability
If multiple printers query the server simultaneously when the representative printer fails, then system redundancy is improved, but network congestion and server load increase
Solution Approach 1:
The server acts as an intermediary that receives failure notifications from printers and coordinates the failover process. Instead of allowing all printers to query simultaneously, the server manages the transition by designating a new representative printer, thereby reducing network congestion while maintaining system redundancy
Solution Approach 2:
The system performs preliminary actions by having printers monitor the representative printer's status and detect failures. When a failure is detected, the system proactively designates a new representative printer before multiple queries occur, preventing network congestion while maintaining redundancy
Data Source
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AI summary
When a problem occurs in a subset of devices, another device appropriately executes a process instead of the problem device. A printer has a decision unit that determines whether or not a request for specific information was received at a specific time from a specific printer; an information collection device that, when the request is not received at the specific time, collects the specific information of each printer from other printers capable of communicating; and an information transmission device that transmits the specific information that was collected and the specific information about the printer of which it is part to an external server.