Drawer-Mounted Drive Motor Cover Against Foreign Object Adhesion
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Solution Overview
Problem
Existing drive devices in image forming apparatuses face issues with dropping objects adhering to the drive motor, particularly from the intermediate transfer unit, which can lead to operational failures.
Innovation Solution
A novel drive device design includes a detachable drawer with a drive motor covered by a cover, allowing for easy maintenance and preventing foreign objects from adhering to the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the drive motor is attached to the drawer unit for easy maintenance, then the ease of repair is improved, but the reliability deteriorates due to foreign objects adhering to the motor
Solution Approach 1:
The drive device is divided into separate functional components: the drawer unit containing the drive motor for easy maintenance, and the cover structure that protects the motor from foreign objects. This segmentation allows the motor to be easily accessed for repair while the cover prevents contamination during operation.
Solution Approach 2:
A cover is introduced as an intermediary element between the drive motor and the foreign objects (dropping objects from the intermediate transfer unit). The cover acts as a protective barrier that prevents foreign objects from adhering to the motor while allowing the motor to remain attached to the drawer unit for easy maintenance.
2Ease of operation
If the drive motor is exposed for operational access, then the ease of operation is improved, but the object-affected harmful factors worsen due to dropping objects adhering to the motor
Solution Approach 1:
The drive device structure is segmented into the drawer unit with the drive motor and the cover structure. This allows the motor to be easily accessible for operation and maintenance while the cover protects it from foreign objects during normal operation.
Solution Approach 2:
The cover serves as an intermediary protective element that is positioned between the drive motor and the dropping objects from the intermediate transfer unit. It prevents foreign object adhesion while maintaining the motor's accessibility for operational purposes.
3Reliability
If the cover is added to protect the drive motor, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The drive device is segmented into modular components including the drawer unit and the cover. This segmentation allows the cover to be added as a separate protective element without significantly complicating the overall structure, as each component remains functionally independent and easily assembled.
Solution Approach 2:
The cover is designed as a simple protective shell or enclosure that provides adequate protection against foreign objects without adding significant structural complexity. The cover can be a thin-walled structure that effectively shields the drive motor while maintaining simplicity in design and manufacturing.
Data Source
AI summary
A drive device includes a drawer, a drive motor, and a cover. The drawer is detachably attached to an image forming apparatus in a first direction. The drive motor is attached to the drawer. The cover covers the drive motor in a second direction different from the first direction.