Optical Scanning Device Vibration Suppression via Rubber Adhesive
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Solution Overview
Problem
Vibrations in optical members of image forming apparatuses, such as the rotatable polygon mirror, can lead to quality failures in electrostatic latent images and reduced productivity, as existing technologies fail to effectively suppress these vibrations during the operation of scanning with light.
Innovation Solution
An optical scanning device is designed with a rotatable polygon mirror and an intermediate member connected to the optical member and housing using rubber adhesive, which effectively suppresses vibrations by providing a combination of line contact and vibration-absorbing properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the optical member is directly connected to the housing with rigid adhesive, then the structural strength is improved, but the vibration suppression capability deteriorates
Solution Approach 1:
An intermediate member is introduced between the optical member and the housing to serve as a mediator. This intermediate member incorporates rubber adhesive that provides both mechanical connection and vibration isolation, resolving the contradiction between structural strength and vibration suppression by allowing controlled flexibility in the connection interface
Solution Approach 2:
The connection method changes from rigid adhesive to rubber adhesive, which alters the mechanical parameters of the connection interface. The rubber adhesive provides elastic properties that can absorb and dampen vibrations while maintaining sufficient bonding strength, thus improving vibration suppression without significantly compromising structural integrity
2Ease of manufacture
If the optical member is freely mounted without vibration isolation, then the ease of manufacture is improved, but the image quality deteriorates due to vibrations
Solution Approach 1:
The intermediate member with rubber adhesive serves as a vibration isolation intermediary that is integrated into the mounting structure. This approach maintains ease of manufacture by using a simple adhesive-based connection rather than complex vibration isolation mechanisms, while simultaneously improving image quality by suppressing optical member vibrations
Solution Approach 2:
By changing the adhesive type from rigid to rubber-based, the connection characteristics are modified to provide vibration damping. This parameter change enables effective vibration suppression that improves image quality without adding significant manufacturing complexity
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
The solution significantly reduces vibrations in the optical members, ensuring high-quality image formation and increased productivity by maintaining the exposure operation during developing device rotations without suspending the scanning process.
Implementation Method 1
connected to the optical member with rubber adhesive and is also connected to the housing with the rubber adhesive
Implementation Method 2
rotatable polygon mirror that receives the light from the light source while rotating and deflects the light by reflecting the light in a direction corresponding to an angle of rotation thereof
Data Source
AI summary
An optical scanning device includes a housing, a light source that emits light, a rotatable polygon mirror that receives the light from the light source while rotating and deflects the light by reflecting the light in a direction corresponding to an angle of rotation thereof, a scanning optical system that guides the light from the rotatable polygon mirror to a scanning object in such a manner as to repeatedly scan the scanning object with the light, and an intermediate member that is provided between an optical member included in the scanning optical system and the housing. The intermediate member is connected to the optical member with rubber adhesive and is also connected to the housing with the rubber adhesive.