Image Forming Apparatus Power Button Placement
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Solution Overview
Problem
The existing image forming apparatuses, such as those disclosed in JP-A-2017-30305, have a power button and operating portion disposed close to each other, leading to a risk of accidental operation of the power button when attempting to use the operating portion.
Innovation Solution
The power operating portion is positioned on one side in a lateral direction crossing the front-to-back direction at the front of the casing, while the touch operation portion is placed on the opposite side, creating a level difference and ensuring they are not easily confused with each other, thus preventing erroneous operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the power button and operating portion are disposed close to each other in the same operation panel, then the device complexity is reduced and ease of manufacture is improved, but the reliability deteriorates due to the risk of accidental power button operation
Solution Approach 1:
The operation panel is segmented into distinct functional zones: a first operating portion for power control and a second operating portion for operational input. This spatial segmentation prevents accidental activation by clearly separating the power button from the touch-sensitive operating portion, thereby improving reliability while maintaining a relatively simple overall structure.
Solution Approach 2:
Different regions of the operation panel are assigned different functional qualities. The first operating portion responds to pressing operations for power control, while the second operating portion responds to touch operations for device control. This local differentiation ensures that each region has optimized response characteristics for its specific function, preventing cross-contamination of operations.
2Ease of operation
If the power button and operating portion are disposed close to each other, then the ease of operation is improved by having controls in one location, but the reliability worsens due to mistaken operation
Solution Approach 1:
The operation panel is divided into functionally distinct segments with clear spatial separation. The first operating portion (power button) and second operating portion (touch panel) are positioned to prevent accidental activation while remaining accessible. This segmentation maintains ease of operation by keeping all controls on the operation panel while improving reliability through functional separation.
Solution Approach 2:
The first and second operating portions are disposed asymmetrically on the operation panel rather than symmetrically or adjacently. This asymmetric arrangement creates natural operational zones that guide user interaction, making it intuitively clear which area controls power and which controls device functions, thereby preventing mistaken operations while maintaining accessibility.
Data Source
AI summary
An image forming apparatus includes an image forming portion that forms an image on a medium, a casing that houses the image forming portion, a power operating portion for use in switching on and off the main power source of the image forming apparatus, and a touch operation portion for use in inputting operations on the image forming apparatus. Assuming that a direction in which the casing faces a user when the touch operation portion is used is a front-to-back direction, the power operating portion is disposed at a one side in a lateral direction crossing the front-to-back direction at a front of the casing in the front-to-back direction, and the touch operation portion is disposed at an other side at the front of the casing in the front-to-back direction.