Print Restriction Change Control for Image Forming Systems
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Solution Overview
Problem
Existing image forming systems fail to effectively manage print jobs when they compete with change requests for printing restrictions, leading to potential disruptions or unavailability of print services.
Innovation Solution
An image forming system with a detection unit that checks for ongoing print jobs and permits changes to printing restrictions only when no job is in progress, ensuring smooth operation and user access management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the system allows change requests to be processed immediately, then the adaptability of printing restrictions is improved, but the reliability of ongoing print jobs deteriorates
Solution Approach 1:
The system applies preliminary anti-action by detecting whether a print job is currently being executed before permitting a change request. When a print job is detected, the system proactively prevents the change request from being processed, thereby avoiding potential disruptions to the ongoing job. This preemptive approach resolves the contradiction by prioritizing job reliability while still allowing adaptability when safe to do so.
Solution Approach 2:
The system dynamically adjusts its behavior based on the current state of print job execution. The permitting unit changes its operation mode: it permits change requests when no job is executing (prioritizing adaptability) and prohibits them when a job is executing (prioritizing reliability). This dynamic state-dependent behavior resolves the contradiction by adapting the system's responsiveness to the current operational context.
2Productivity
If the system permits change requests during print job execution, then the productivity of restriction updates is improved, but the stability of the printing system deteriorates
Solution Approach 1:
The system performs preliminary detection of print job execution status before allowing restriction changes. By proactively identifying when a print job is running and blocking change requests during that period, the system prevents instability while maintaining productivity during safe windows when no jobs are executing.
Solution Approach 2:
The system takes preliminary action by establishing a detection mechanism that monitors print job execution status in advance. This allows the system to prepare and queue change requests appropriately, executing them only when the system is stable and no print jobs are running, thus maintaining both productivity and stability.
3Stability of the object's composition
If the system blocks all change requests during print job execution, then the stability of the printing system is improved, but the adaptability of printing restrictions deteriorates
Solution Approach 1:
The system dynamically adjusts its responsiveness to change requests based on the real-time execution state of print jobs. Rather than statically blocking all changes or allowing all changes, the system adapts its behavior: permitting changes when stable (no job executing) and blocking them when unstable (job executing). This dynamic approach resolves the contradiction by optimizing both stability and adaptability according to system state.
Solution Approach 2:
The system implements periodic checking of print job execution status to determine whether change requests should be permitted. This periodic detection creates rhythmic windows of opportunity where changes can be safely applied, balancing system stability with the need for adaptability over time.
Data Source
AI summary
Setting change for an image forming device may include determining whether the image forming device is currently performing print processing. In some examples, if the image forming device is currently performing print processing, the setting change may be delayed. In other examples, the setting change may be implemented irrespective of the print processing. In one arrangement, the setting change may be specific to a particular entity (e.g., a user).