Image Reading Apparatus Automatic Read Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In copying machines, there is a risk of unintended document copying when the copy mode selection switch is not checked by subsequent users, leading to unwanted copying operations.
Innovation Solution
An image reading apparatus with a read mode switching section that automatically switches from a continuous read mode to an ordinary read mode after a predetermined time, preventing document reading based on the opening/closing of the document cover, and including a timer to manage this transition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If continuous read mode is enabled to allow automatic copying when document cover is closed, then user convenience is improved and manual operations are reduced, but unintended copying may occur when the mode is not properly deactivated by subsequent users
Solution Approach 1:
The system dynamically switches between continuous read mode and ordinary read mode based on time conditions. The read mode switching section automatically transitions from continuous read mode to ordinary read mode when the elapsed time exceeds the first predetermined time, allowing the system to adapt its behavior based on temporal conditions rather than remaining in a fixed state
Solution Approach 2:
The system automatically manages mode switching without requiring user intervention. The timer section continuously monitors elapsed time and the read mode switching section automatically deactivates continuous read mode when the time threshold is reached, eliminating the need for users to manually check or switch modes
2Ease of operation
If the copy mode selection switch remains in the second mode after copying completion, then operational simplicity is improved, but copying may start automatically when the document cover is closed without user intent
Solution Approach 1:
The timer section periodically monitors the elapsed time since switching to continuous read mode. When the elapsed time reaches the first predetermined time threshold, the read mode switching section automatically switches to ordinary read mode, creating a time-based periodic check that prevents indefinite automatic copying
Solution Approach 2:
The timer section provides continuous feedback on elapsed time to the read mode switching section. This feedback mechanism allows the system to automatically respond when the time threshold is reached by switching modes, ensuring that continuous read mode does not persist indefinitely without user action
Data Source
AI summary
An image reading apparatus has a read table on which a source document is mounted, a document cover openably/closably held on the read table, a detection section detecting state of the document cover, a switching section switching between a continuous read mode where the source document is read when the detection section detects a closed state of the document cover after detecting an opened state and an ordinary read mode where the source document is read according to an instruction by a user regardless of the state of the document cover, a timer section measuring elapsed time since switching to the continuous read mode, and a reset section resetting the elapsed time when the detection section detects the closed state in the continuous read mode, wherein the switching section switches from the continuous read mode to the ordinary read mode when the elapsed time reaches a first predetermined time.