Image Forming Device Retry Control for Carrier Network Charges
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Solution Overview
Problem
Image forming devices face increased charges due to uncontrolled retries in data transmission errors over carrier communication networks, leading to unnecessary expenses.
Innovation Solution
An image forming device with a class judging unit, a number-of-times determination unit, and a retry execution unit that assesses the probability of successful transmission retry and adjusts the number of retries based on error class and notification data priority, using different communication paths to minimize unnecessary retries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of retries is increased to improve data transmission reliability, then transmission reliability is improved, but communication charges increase
Solution Approach 1:
The patent changes the parameter of retry count dynamically based on error class. Instead of using a fixed retry count, the system adjusts the retry parameter according to the specific error type encountered, allowing optimal balance between reliability and cost for each error scenario
Solution Approach 2:
The patent applies different retry strategies to different error classes. Each error class (e.g., paper jam, communication error, hardware failure) receives a tailored retry count appropriate to its nature, rather than applying a uniform retry policy across all error types
2Loss of energy
If the number of retries is decreased to reduce communication charges, then communication charges are reduced, but data transmission reliability deteriorates
Solution Approach 1:
The system dynamically adjusts the retry parameter based on error analysis. By changing the retry count parameter according to the specific error class, the system maintains reliability where needed while reducing unnecessary retries that waste resources
3Reliability
If unlimited retries are performed to ensure data transmission success, then data transmission reliability is improved, but device complexity increases due to uncontrolled retry management
Solution Approach 1:
The patent simplifies retry management by using error class as the basis for determining retry count. This parameter-based approach replaces complex multi-factor decision logic with a simpler classification system, reducing management complexity while maintaining reliability
Solution Approach 2:
The patent segments errors into distinct classes (e.g., paper jam, communication error, hardware failure) and assigns specific retry counts to each class. This segmentation organizes the retry management process into manageable categories, reducing overall system complexity
Data Source
AI summary
An image forming device that includes a communication device includes a class judging unit, a number-of-times determination unit, and a retry execution unit. The communication device transmits data to a management device through a first communication network provided by a communication carrier. The class judging unit judges a class under which a first error having occurred in data transmission falls, the class being predetermined according to a probability of a successful transmission retry. The number-of-times determination unit determines the number of times a retry is performed in response to the first error, such that the number of times the retry is performed is decreased as the probability of a successful transmission retry becomes low. The retry execution unit causes the communication device to execute the retry in response to the first error the determined number of times.