Touch Panel Force Feedback for Printing Parameter Selection
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Solution Overview
Problem
Users of electronic devices with touch panels, such as printing apparatuses, face difficulties in accurately selecting operation parameters due to the subjective nature of pressing force, leading to inefficiencies in setting operations.
Innovation Solution
A touch panel system that displays an operation object corresponding to a multi-level changeable operation parameter, where the temporary setting value is changed based on the magnitude of the pressing force, allowing users to intuitively adjust and select desired settings by observing a display object that reflects the pressing force, and designates a determination operation to finalize the setting value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multilevel threshold values are set with respect to the magnitude of the pressing force to the touch pad, then multiple parameter setting values can be selected according to the pressing force magnitude, but the user cannot know how strong the pressing force being applied is, leading to incorrect function selection and increased operation time
Solution Approach 1:
The touch panel displays visual feedback showing the magnitude of the pressing force in real-time. This allows the user to see exactly how strong their pressing force is and adjust it to select the desired parameter setting value, eliminating the problem of not knowing the pressing force magnitude while maintaining multiple parameter selection capability
Solution Approach 2:
The touch panel uses color changes or visual indicators to represent different pressing force magnitudes. By displaying color-coded feedback corresponding to different pressing force levels, the system provides intuitive visual information about the user's input strength, enabling accurate parameter selection without losing force magnitude information
2Device complexity
If the touch panel only receives pressing operations without visual feedback, then the device structure remains simple, but the user cannot grasp the correspondence between pressing force and parameter values, reducing operation accuracy
Solution Approach 1:
The touch panel incorporates visual feedback display that shows the relationship between pressing force magnitude and parameter setting values. This feedback mechanism maintains relatively simple device structure while significantly improving parameter selection accuracy by allowing users to visually confirm their input strength
Solution Approach 2:
The display object acts as an intermediary between the user's pressing force and the parameter selection. It translates the physical pressing force into visual information that the user can interpret, bridging the gap between simple touch input and accurate parameter selection without requiring complex additional hardware
Data Source
AI summary
A printing apparatus includes a printing unit that performs a printing operation, a print setting unit that performs setting of the printing operation, and a touch panel that displays an object related to the setting and receives a pressing operation. The touch panel displays operation objects corresponding to a multi-level changeable operation parameter of the printing operation and when the pressing operation is performed on a position where the operation object is displayed, the touch panel changes a temporary setting value of the operation parameter, which is shown by a display object displayed at a position different from that of the operation object, according to a magnitude of pressing force. The print setting unit decides the temporary setting value, which is obtained when a determination operation different from the pressing operation is performed, as a setting value of the operation parameter.