Image Processing Startup Error Notification Without Display
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Solution Overview
Problem
Existing image processing systems fail to provide error notifications when a display unit becomes unusable during startup, hindering user convenience and maintenance efficiency.
Innovation Solution
Incorporating a sub-processor that references a shared memory to issue error notifications using either a scanning device or a printing device, enabling error content notification even when the main processor stops before the display unit becomes usable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main processor stops startup processing before the display unit becomes usable, then the system can prevent unstable display output, but the ability to notify users of error contents is lost
Solution Approach 1:
The main processor records error information in shared memory before the display unit becomes unusable. This preliminary action ensures that error data is preserved even when startup processing stops early, allowing the sub-processor to later notify users of error contents through alternative means such as LED indicators or printed messages.
Solution Approach 2:
The shared memory acts as an intermediary between the main processor and sub-processor. It stores error information that the sub-processor can access and use to generate notifications through alternative output methods when the display unit is not yet available.
2Device complexity
If the system uses only the display unit for error notifications, then the notification method is simple, but the system cannot notify errors occurring before display initialization
Solution Approach 1:
The notification system is designed to serve multiple functions through different output methods. The sub-processor can select from multiple notification channels (display unit, LED indicators, printed messages) depending on system state, making the notification system universal and applicable to various error scenarios including those occurring before display initialization.
Solution Approach 2:
The notification system dynamically adapts its output method based on system state. When the display unit is ready, errors are notified through the display. When startup stops before display initialization, the system dynamically switches to alternative notification methods such as LED patterns or printed error messages.
Data Source
AI summary
An image processing system includes: an image processing unit including at least one of a scanning device that scans an image or a printing device that prints the image on a medium; a display unit that displays a screen; a main processor; a sub-processor configured to perform control of the image processing unit independently of the main processor; and a shared memory that is accessible in common to the main processor and the sub-processor, in which the main processor is configured to record a history in the shared memory for each processing in startup processing of the image processing system, and the sub-processor is configured to, in a case where the startup processing by the main processor has stopped before the display unit becomes usable in the startup processing, refer to information including at least the history recorded in the shared memory to issue a notification of an error content by using the image processing unit.