Rotating Member Identification Gap for Image Forming Maintenance
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Solution Overview
Problem
Existing rotating members in image forming apparatuses, such as heating rollers, face issues like fixing failure and creasing of recording sheets due to manufacturing defects and degradation over time, making it difficult to identify and address the root cause of problems during maintenance.
Innovation Solution
A rotating member design that includes a cylindrical or columnar body with identification information provided on its outer surface and held by a member with an inner surface that does not contact the rotating member, allowing for easy reading of the information even when the member is in use, using a drive gear with spaces to prevent wear and ensure readability of the identification details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If identification information is provided on the outer circumferential surface of the rotating member body, then the information is easily accessible for reading, but the information may be worn or damaged due to contact with the holding member during rotation
Solution Approach 1:
The patent introduces a space (gap) between the outer circumferential surface of the rotating member body and the inner circumferential surface of the holding member. This space acts as an intermediary that prevents direct contact between the identification information and the holding member, thereby protecting the information from wear while maintaining accessibility during rotation
2Reliability
If a space is provided between the rotating member body and the holding member to protect identification information, then the information durability is improved, but the structural complexity increases
Solution Approach 1:
The patent divides the rotating member into two distinct components: the rotating member body (containing the identification information) and the holding member. This segmentation allows the identification information to be protected within the rotating member body while the holding member provides support and mounting functions, thereby achieving protection without excessive structural complexity
Data Source
AI summary
A rotating member includes a rotating-member body, identification information, and a holding member. The rotating-member body having a cylindrical or columnar shape has one end portion and an outer circumferential surface and is to be rotated. The identification information is provided at the one end portion on the outer circumferential surface of the rotating-member body. The holding member is provided at the one end portion of the rotating-member body, holds the rotating-member body, and has an inner circumferential surface in part of which a space not to be in contact with the outer circumferential surface of the rotating-member body is provided. The identification information is disposed in the space of the holding member.