Image Forming Apparatus Retransmission Notification Table Management
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Solution Overview
Problem
Existing monitoring methods for image forming apparatuses do not account for changes in InformRequest notification settings or SNMPv3 user information during retransmissions, leading to continued use of outdated settings.
Innovation Solution
The method involves adding retransmission entries to a notification table managed by the image forming apparatus, clearing these entries when the retransmission is completed or a response is received, and updating entries when user information necessary for retransmission changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image forming apparatus continues retransmission based on previously set values, then the retransmission process maintains stability, but the system cannot adapt to changes in notification settings or SNMPv3 user information
Solution Approach 1:
The system implements a feedback mechanism by monitoring whether retransmission settings exist in the notification table. When settings are changed during retransmission, the system detects this change and terminates the ongoing retransmission process, ensuring that outdated settings are not used. This feedback loop maintains reliability while enabling adaptability to setting changes.
Solution Approach 2:
The retransmission system transitions from a static process using fixed previously-set values to a dynamic process that continuously checks for setting changes. The system now adapts its behavior based on current settings in the notification table, allowing it to respond to changes while maintaining operational integrity through proper termination and restart of retransmission processes.
2Adaptability or versatility
If the system monitors and responds to setting changes during retransmission, then adaptability improves, but system complexity increases
Solution Approach 1:
The system uses its existing notification table structure to store retransmission settings, leveraging already-available resources rather than introducing new complex monitoring infrastructure. The retransmission process itself serves the dual purpose of data transmission and setting validation, reducing overall system complexity while maintaining adaptability.
3Reliability
If retransmission entries are cleared upon setting changes, then outdated settings are prevented from being used, but additional control operations are required
Solution Approach 1:
The system performs preliminary checks before each retransmission attempt to determine whether settings have changed since the retransmission process was initiated. By checking for the presence of current settings in the notification table beforehand, the system prevents execution with outdated settings, ensuring reliability while keeping the control logic integrated into the existing retransmission flow.
Data Source
AI summary
A control method for an image forming apparatus configured to perform transmission of information includes performing retransmission of the information a predetermined number of times in a case where the transmission of the information fails, wherein an entry about the retransmission of the information is added to a notification table managed by the image forming apparatus, clearing the entry from the notification table, in a case where the retransmission of the information is completed the predetermined number of times or a case where the image forming apparatus receives a response to the retransmission of the information, and clearing the entry from the notification table in a case where user information necessary for the retransmission of the information is changed.