Flexible Flat Cable Routing Guide for Image Scanner Noise Reduction
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Solution Overview
Problem
Flexible flat cables in image reading and forming apparatuses are prone to breaks and noise due to excessive twisting or bending, leading to irregularities in image data during the reading and forming processes.
Innovation Solution
The flexible flat cables are routed to minimize twists and bends by using a guide unit that maintains a predetermined curvature and separates the cables to prevent contact and noise interference, with ferrite cores to attenuate signal noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flexible flat cables are routed in conventional paths, then device assembly is simple, but cables experience excessive twisting or bending causing breaks and noise
Solution Approach 1:
A cable guiding structure is introduced as an intermediary component between the cable source and destination. This structure includes guiding surfaces and routing channels that mediate the cable's path, preventing excessive twisting and bending while maintaining a relatively simple overall device assembly.
Solution Approach 2:
The cable routing path is designed with optimized curvature radius and guiding surfaces that match the cable's bending characteristics. By accounting for the cable's spherical/curved geometry in the routing design, the system prevents sharp bends and excessive twisting that would cause cable failure.
2Volume of moving object
If cables are routed close to each other to save space, then device size is reduced, but noise interference between cables increases
Solution Approach 1:
Different regions of the cable routing path are designed with different characteristics. Areas where cables are close together have enhanced noise shielding measures, while other areas maintain sufficient separation. The guiding structure creates localized zones that prevent noise interference even when cables are densely packed.
Solution Approach 2:
The proximity of cables, which normally causes noise interference, is converted into a space-efficient design feature. By using noise-shielding materials and optimized routing, the system turns what would be a harmful close-proximity arrangement into a beneficial compact configuration that reduces overall device volume.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the likelihood of cable damage and noise, thereby enhancing the reliability of image reading and forming processes by minimizing irregularities in image data and maintaining image quality.
Implementation Method 1
with ferrite cores to attenuate signal noise
Data Source
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AI summary
A configuration for an image reading device, an image forming device or a multifunction apparatus may include systems and arrangements for routing electrical flexible flat cables to reduce potential damage and noise. The positioning and connection points between various other components including reading portions, hinge members, a control circuit board and the like may also be configured to reduce size, noise and potential for damage.