Exposure Unit Isolation for Vibration-Stable Image Forming
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Solution Overview
Problem
Existing image forming apparatuses face issues with unwanted vibration transmission to the exposure device, leading to malfunctions such as banding in the image quality due to resonance, especially when anti-vibration members or non-contact structures are not adequately implemented.
Innovation Solution
The image forming apparatus incorporates anti-vibration members interposed between the interval maintaining members and the exposure device, or maintains a spaced structure between these components, along with elastic members to suppress vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the exposure device is directly contacted with the interval maintaining member, then the structural complexity is reduced, but unwanted vibration is transmitted to the exposure device causing resonance and image quality degradation
Solution Approach 1:
An anti-vibration member is introduced as an intermediary component between the interval maintaining member and the exposure device. This mediator absorbs and dampens vibration while maintaining the necessary mechanical connection, thus reducing vibration transmission without requiring a complete non-contact structure.
Solution Approach 2:
The contact structure is modified by changing the material properties or damping characteristics of the anti-vibration member. This parameter change allows the same contact structure to effectively suppress vibration transmission while maintaining structural simplicity.
2Object-affected harmful factors
If an anti-vibration member is interposed between the interval maintaining member and the exposure device, then unwanted vibration transmission is suppressed, but the device complexity increases
Solution Approach 1:
The anti-vibration member serves as a functional intermediary that can be integrated into existing structures. By positioning it at the contact interface between the interval maintaining member and the exposure device, it provides vibration suppression with minimal additional structural complexity.
3Object-affected harmful factors
If the interval maintaining member and exposure device are spaced from each other, then unwanted vibration transmission is suppressed, but the positioning precision and interval maintenance capability deteriorate
Solution Approach 1:
The anti-vibration member acts as a mediator that maintains precise positioning while suppressing vibration. It provides both mechanical support for accurate interval maintenance and vibration damping properties, eliminating the need for complete spacing that would compromise positioning precision.
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 configuration effectively reduces unwanted vibration transmission to the exposure device, preventing resonance and improving image quality by minimizing vibration-related malfunctions.
Implementation Method 1
an anti-vibration member is interposed between the interval maintaining member and a contact portion of the exposure device
Implementation Method 2
The elastic portion is elastic, is disposed between the exposure unit and the weight, and supports the weight in a vibratable manner
Data Source
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AI summary
An image forming apparatus includes: a rotatable photoconductor; an exposure device that forms a latent image by radiating light from a light emitting element disposed along an axial direction of the photoconductor; an interval maintaining member that maintains an interval between the photoconductor and the exposure device; and a support member to which at least the photoconductor and the exposure device are attached, in which an anti-vibration member is interposed between the interval maintaining member and a contact portion of the exposure device.