Double-Structured Cover for Image Forming Apparatus
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Solution Overview
Problem
Existing image forming apparatuses have a complex structure with multiple covers, which increases the number of components and costs, while also complicating the process of accessing and replacing toner bottles.
Innovation Solution
The image forming apparatus features a cover system with an inner and exterior cover that form a single body, reducing the number of components and simplifying the structure, while also enhancing the rigidity and quality feeling of the cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate covers are used to access toner bottles, then the structure provides better protection and security, but the number of components increases and the structure becomes complex
Solution Approach 1:
The patent combines multiple separate covers (front cover and bottle cover) into a single integrated cover assembly. The front cover and bottle cover are formed as one piece, reducing the number of components while maintaining the protective functions of both covers. This merging eliminates the need for separate assembly and disassembly operations.
Solution Approach 2:
The integrated cover serves multiple functions simultaneously: it acts as both the front cover protecting the internal components and the bottle cover securing the toner bottles. This multi-functional design eliminates the need for separate specialized covers, reducing component count while maintaining comprehensive protection.
2Reliability
If multiple separate covers are used, then each cover can be optimized for its specific function, but the number of components increases and costs increase
Solution Approach 1:
By merging the front cover and bottle cover into a single integrated component, the patent reduces the total number of parts that need to be manufactured, assembled, and inventoried. This consolidation reduces manufacturing complexity and associated costs while maintaining the functional integrity of both cover types.
3Reliability
If multiple separate covers are used, then security and protection are improved, but the process of accessing and replacing toner bottles becomes more complex
Solution Approach 1:
The integrated cover design allows users to access toner bottles through a single cover assembly rather than needing to separately open multiple covers. This simplifies the user operation while maintaining security through the lock mechanism that secures the entire assembly.
4Device complexity
If a single integrated cover is used, then the number of components is reduced and costs are lowered, but the rigidity and quality feeling may be compromised
Solution Approach 1:
While the cover is integrated as a single piece, the design incorporates segmented functional zones with reinforcing structures. The lock mechanism and bottle holder areas include additional ribs and strengthening features that maintain rigidity in critical areas without requiring separate cover components.
Solution Approach 2:
The cover is made from a single piece of resin material that provides both the necessary rigidity and flexibility. The material selection and molding process create an integrated structure that maintains strength while reducing the number of components needed.
Data Source
AI summary
An image forming apparatus includes an apparatus main body and a cover to openably close the apparatus main body in a front-back direction. The cover includes an inner cover and an exterior cover outside the inner cover in the front-back direction. The exterior cover is fitted to the inner cover to form a single body with the inner cover.