Gear Alignment Attachment for Process Cartridge Replacement
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Solution Overview
Problem
The driving gear in a process cartridge may tilt or become inclined during removal or replacement, making it difficult to couple with the driven gear of the image forming apparatus, especially when the process cartridge lacks an integrated structure to align the driving gear.
Innovation Solution
The use of attachments that provide an aligning force to the driving gear, such as mounts and protruding portions, which are installed in the image forming apparatus to correct the tilt and ensure proper coupling with the driven gear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the process cartridge is removed from the image forming apparatus, then the process cartridge can be replaced, but the driving gear becomes tilted and difficult to align with the driven gear
Solution Approach 1:
The attachment is installed on the image forming apparatus before the process cartridge is removed. This preliminary installation ensures that when the cartridge is removed and replaced, the driving gear will automatically align with the driven gear without requiring manual adjustment or precise manual alignment during the replacement process.
Solution Approach 2:
The attachment acts as an intermediary component between the driving gear and the image forming apparatus housing. It provides a mounting structure that maintains the driving gear in the correct position and orientation, serving as a mediator that ensures proper alignment during cartridge replacement without requiring the cartridge itself to have integrated alignment structures.
2Device complexity
If the process cartridge lacks an integrated alignment structure, then the cartridge design is simpler, but the driving gear cannot be properly aligned with the driven gear
Solution Approach 1:
The attachment serves as an intermediary component that compensates for the lack of integrated alignment structures in the process cartridge. By mounting the attachment on the image forming apparatus, it provides the necessary alignment function without adding complexity to the cartridge design itself.
Solution Approach 2:
The alignment function is segmented from the process cartridge and placed in the image forming apparatus. The attachment is a separate component that can be independently installed on the apparatus, allowing the cartridge to remain simple while still achieving proper alignment through the external attachment.
3Ease of operation
If the driving gear is tilted during cartridge removal, then the cartridge can be easily removed, but coupling with the driven gear becomes difficult
Solution Approach 1:
The attachment is pre-installed on the image forming apparatus to maintain the driving gear in the correct position during cartridge removal. This preliminary positioning ensures that even when the cartridge is easily removed, the driving gear remains properly aligned and can reliably couple with the driven gear upon reinstallation.
Data Source
AI summary
An example mountable set to be mounted in an image forming apparatus (100) includes a process cartridge (200) having a driven gear (210), the driven gear to couple with a driving gear (120) of the image forming apparatus and to receive a driving force from the driving gear and an attachment (300). The attachment includes a mounting portion (310) to mount to the image forming apparatus and a protruding portion (320), coupled to the mounting portion, to provide an aligning force to the driving gear.