Optical Scanning Device Dual Support Vibration Isolation
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Solution Overview
Problem
Existing image formation apparatuses, such as copy machines and printers, face challenges in preventing vibrations from motor and clutch components from being transmitted to the optical scanning device, which can degrade image quality by causing the optical scanning device to vibrate at frequencies different from its resonant frequency.
Innovation Solution
The image formation apparatus employs a dual support system where the optical scanning device is supported by both a first support member and a second support member, which are separated and not in contact with each other. This configuration reduces the transmission of vibrations from the casing to the optical scanning device, allowing for more precise positioning and reduced vibration-induced image quality issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a single support member with a predetermined resonant frequency is used to support the optical scanning device, then vibrations at that specific frequency are reduced, but vibrations at other frequencies are transmitted to the optical scanning device causing image quality degradation
Solution Approach 1:
The single support member is divided into multiple support members (first support member and second support member). Each support member has different resonant frequencies, allowing them to attenuate vibrations at different frequency ranges. This segmentation approach converts a single-frequency vibration solution into a multi-frequency vibration reduction system, effectively addressing the limitation of the single resonant frequency approach.
2Reliability
If the support member is designed to have a specific resonant frequency to reduce vibrations, then vibrations at that frequency are minimized, but the optical scanning device still vibrates when exposed to vibrations at different frequencies
Solution Approach 1:
The support system is segmented into multiple independent support members, each with distinct resonant frequencies. The first support member attenuates vibrations in one frequency range while the second support member attenuates vibrations in another frequency range. This multi-segmented approach ensures broad-spectrum vibration isolation, maintaining positioning accuracy across various operating conditions.
Solution Approach 2:
The support structure uses a composite configuration of multiple support members with different material properties or structural characteristics, giving each member different resonant frequencies. This composite support system combines the vibration attenuation capabilities of individual members to create a comprehensive vibration isolation solution that protects the optical scanning device across a wide frequency spectrum.
Data Source
AI summary
In accordance with an embodiment, a casing of an image formation apparatus includes a first support member and a second support member. The first support member comes into contact with a lower end of a first support leg part projecting downward from the optical scanning device and supports the lower end of the first support leg part. The second support member comes into contact with a lower end of a second support leg part different from the first support leg part projecting downward from the optical scanning device and supports the lower end of the second support leg part. The second support member is separated from the first support member in a non-contact state.