Fixing Device Positioning via Restricting Member
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Solution Overview
Problem
Existing fixing devices in image forming apparatuses face challenges in accurately positioning and aligning the fixing components, leading to potential misalignment and inefficiencies in toner image fixation on recording media.
Innovation Solution
The proposed fixing device incorporates a first and second fixing member, supported by a first and second support member respectively, with restricting members to fix the position of the first support member and forcing members like springs to press the second fixing member against the first, ensuring precise alignment and fixation of toner images on the recording medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If restricting members are added to fix the position of support members, then positioning precision and alignment are improved, but device complexity increases
Solution Approach 1:
The restricting member acts as an intermediary component between the support member and the housing, providing a simple yet effective positioning mechanism. This mediator element ensures precise alignment of the fixing device without requiring complex positioning systems, thereby resolving the contradiction between positioning precision and device complexity.
Solution Approach 2:
The restricting member is designed to automatically position and align the support member when the fixing device is assembled. This self-positioning feature eliminates the need for complex adjustment mechanisms or precise manual alignment, achieving high positioning precision while keeping the device structure simple.
2Reliability
If forcing members are used to press fixing members together, then fixation reliability is improved, but device complexity increases
Solution Approach 1:
The forcing member provides a counteracting force to maintain constant pressure between the first and second fixing members during operation. This ensures reliable toner image fixation by compensating for any positional variations or wear, achieving high fixation reliability without requiring complex control systems.
Solution Approach 2:
The forcing member is designed to apply pressure through elastic deformation or spring force, transforming the fixation mechanism from rigid to flexible. This parameter change in the pressing force ensures consistent contact between fixing members while maintaining a simple device structure without complex actuators.
Data Source
AI summary
A fixing device includes a first fixing member, a second fixing member that fixes a toner image transferred to a recording medium onto the recording medium by transporting the recording medium while holding the recording medium between the first fixing member and the second fixing member, a first support member that supports the first fixing member, a forcing member that supports the second fixing member and presses the second fixing member against the first fixing member, and a restricting member disposed on the first support member to fix a position of the first support member at an attachable member to which the first support member is attached, and to restrict a position of the forcing member.