Cleaning Unit Pivoting Mechanism for Image-Forming Device Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The conventional image-forming device requires complex maintenance procedures for the cleaning unit, as it is positioned opposite the belt unit from the photosensitive drums, necessitating the removal of drums and belt units to access, leading to increased mechanical complexity and difficulty in maintenance.
Innovation Solution
The cleaning unit is positioned on the same side as the belt unit, with a pivoting mechanism allowing it to contact and separate from the belt, and is integrated with the developer cartridge, enabling simultaneous replacement and reducing mechanical complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cleaning unit is positioned on the opposite side of the belt unit from the photosensitive drums, then the cleaning unit can be separated from the belt unit, but maintenance access becomes difficult requiring removal of drums and belt units
Solution Approach 1:
The cleaning unit is designed with a pivoting mechanism that allows it to dynamically change position between contacting the belt unit for cleaning and separating for maintenance access. This dynamic positioning resolves the contradiction by enabling both effective cleaning operation and easy maintenance access without requiring permanent complex positioning mechanisms
2Ease of operation
If the cleaning unit is positioned on the same side of the belt unit as the photosensitive drums, then maintenance access is improved, but a complex contacting/separating mechanism is required
Solution Approach 1:
The cleaning unit is integrated with the developer cartridge as a single assembly. This merging eliminates the need for separate contacting/separating mechanisms between the cleaning unit and belt unit, as the entire assembly moves together with the developer cartridge. This resolves the contradiction by improving maintenance access while avoiding increased mechanical complexity
3Ease of repair
If the cleaning box is integrally provided with a developer cartridge, then the cleaning box can be replaced simultaneously with the developer cartridge, but the cleaning box must be moved together with the developer cartridge leading to increased mechanical complexity
Solution Approach 1:
The cleaning box is integrated as part of the developer cartridge assembly, allowing simultaneous replacement of both components. The cleaning unit pivots about the relay axis together with the developer cartridge, eliminating the need for separate moving mechanisms and reducing overall mechanical complexity while maintaining ease of replacement
Data Source
AI summary
An image-forming device includes photosensitive drums arranged parallel to each other and extending in a first direction; developing units corresponding to the photosensitive drums; a belt in contact with the photosensitive drums and moving in a second direction crossing the first direction; a cleaner for cleaning waste toner on the belt; a first conveying unit extending in the first direction; a second conveying unit extending in the first direction separately from the first conveying unit in a third direction orthogonal to the first and second directions; and a connecting unit connecting the first and second conveying units. The toner is conveyed by the first conveying unit to pass through the connecting unit, and conveyed by the second conveying unit. One of the developing units includes a toner container. The connecting unit is positioned on one end side of the photosensitive drums and overlaps the container in the first direction.