Developing Cartridge Mounting Precision via Abutting Part
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Solution Overview
Problem
Existing process cartridges face issues with secure mounting of developing cartridges to photosensitive member cartridges, leading to imperfect mounting and subsequent failure in image forming operations.
Innovation Solution
A process cartridge design featuring a developing cartridge with a pressing member and a driving mechanism, including a detected member and a covering member, which ensures proper alignment and secure mounting by utilizing a pressing mechanism and detection system to position the developing cartridge correctly during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the developing cartridge is manually positioned and mounted to the photosensitive member cartridge, then the mounting operation is simple, but the mounting precision is insufficient leading to imperfect assembly
Solution Approach 1:
The abutting part is pre-configured on the covering member to automatically engage with the abutting surface during the mounting process. This preliminary positioning structure ensures that the developing cartridge is correctly positioned before final securing, eliminating the need for complex adjustment mechanisms while achieving precise mounting.
Solution Approach 2:
The mounting mechanism utilizes the existing structural features of the covering member (abutting part) and the main body (abutting surface) to automatically achieve precise positioning. The system serves itself by using its own components for alignment and securing, without requiring external positioning devices or complex control systems.
2Reliability
If the developing cartridge is mounted without a secure locking mechanism, then the mounting process is fast, but the reliability of the mounted state is poor
Solution Approach 1:
The abutting part on the covering member and the abutting surface on the main body are merged into a single positioning and securing mechanism. This combined structure simultaneously achieves alignment and secure mounting in one action, ensuring reliability without requiring separate locking steps that would complicate the operation.
3Manufacturing precision
If the developing cartridge position is not automatically adjusted during mounting, then the mounting process is simple, but the positioning accuracy is poor
Solution Approach 1:
The abutting part is pre-configured on the covering member to automatically engage with the abutting surface during the mounting process. This preliminary positioning structure ensures that the developing cartridge is correctly positioned before final securing, eliminating the need for complex adjustment mechanisms while achieving precise mounting.
Data Source
AI summary
A process cartridge comprises: a developing cartridge; and a photosensitive member cartridge receiving the developing cartridge. The photosensitive member cartridge comprises a photosensitive member, and a pressing member configured to press the developing cartridge. The developing cartridge is configured to be located at a first position at which it is pressed by the pressing member and at a second position at which it is separable from the photosensitive member cartridge. The developing cartridge comprises: a driving mechanism including a detected member, and a covering member configured to cover the driving mechanism. The covering member comprises: a receiving part protruding configured to receive at least a part of the detected member; and an abutting part continuing to the receiving part, the abutting part being configured to abut on a member in the image forming apparatus main body and to move the developing cartridge to the first position.