Printer Controller Standby Timeout Management
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Solution Overview
Problem
Users of printing devices face usability issues when the automatic correction function is activated, as the device automatically switches to a standby screen if a scanning instruction is not input within a certain period, requiring users to restart the correction process.
Innovation Solution
An image processing apparatus with a controller that manages the printing and scanning processes, including a correction image printing process, notification displaying, scanning request receiving, identification information obtaining, and correcting processes, which allows for automatic switching to a standby screen if no scanning request is received after a certain period, enabling users to continue the correction process without losing progress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screen is automatically switched to standby screen when a particular period has elapsed without scanning instruction, then the device can return to standby state for other operations, but the user must restart the correction process which degrades usability
Solution Approach 1:
The system performs preliminary actions by printing the correction image and storing identification information before the user completes scanning. When the user later restarts the correction process, the system recognizes the previously printed correction image through identification matching and resumes the correction workflow without requiring the user to reprint, thus saving time while maintaining the ability to return to standby state
2Ease of operation
If the screen remains on notification screen waiting for scanning request, then the user can continue the correction process, but another operation cannot be performed which reduces device flexibility
Solution Approach 1:
The system dynamically manages screen states based on operational context. The notification screen can be switched to standby screen after a timeout period, and when the user later accesses correction functionality, the system determines whether to display the notification screen again based on whether a correction image has been printed and identified. This dynamic state management allows the device to flexibly switch between maintaining correction continuity and enabling other operations
Data Source
AI summary
In an image processing apparatus, when a correction request is received, a correction image including a correction pattern and identification information is printed on a printing medium. Thereafter, when a scanning request is received, the image is scanned and identification information is obtained. When the identification information corresponds to one stored in the storage, the driving information is corrected based on the scanned image. When a particular standby condition is satisfied, an information setting process is performed to set non-completion information, while, when a particular standby release condition is satisfied, the controller displays a screen corresponding to the satisfied standby release condition instead of the scan notification screen at a particular timing after the standby release condition is satisfied. If it is determined in a necessity/unnecessity receiving process that the correction image printing process is unnecessary, the controller performs the notification displaying process without performing the correction image printing process.