Supporting Member for Independent Drum Access
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Solution Overview
Problem
The existing electrophotographic image forming apparatus requires complicated procedures for replacing the photosensitive drum, as it necessitates the removal of the toner cartridge even when only the drum is being replaced, due to the integrated design of the LED head and photosensitive drum units.
Innovation Solution
The apparatus is designed with a supporting member that allows the developer container and light exposure member to move between a light exposure position and a separation position, enabling the photosensitive drum to be replaced independently of the toner cartridge, facilitating easier maintenance and reducing running costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the toner cartridge and photosensitive drum are separately provided, then maintenance cost and complexity are reduced, but the device structure becomes more complex requiring a supporting member to coordinate their separate attachment and light exposure positioning
Solution Approach 1:
The photosensitive drum unit is segmented from the toner cartridge, allowing independent replacement of the photosensitive drum without removing the toner cartridge. This segmentation enables separate maintenance of consumable components.
Solution Approach 2:
A supporting member is introduced as an intermediary component that holds both the separately provided toner cartridge and photosensitive drum unit, coordinating their positioning and light exposure while enabling independent attachment and removal.
2Device complexity
If the LED head is held on the top cover and moves with it, then the structure is simplified, but the photosensitive drum cannot be replaced independently when the toner cartridge needs to be removed
Solution Approach 1:
The supporting member is segmented into distinct functional zones: one for holding the toner cartridge and another for holding the photosensitive drum unit with the LED head. This allows independent access to each component.
Solution Approach 2:
The supporting member provides dynamic positioning capability, allowing the photosensitive drum unit to be held in a light exposure position relative to the LED head while the toner cartridge can be independently removed from its holding position on the same supporting member.
3Ease of operation
If the top cover is opened to separate the LED head from the photosensitive drum, then component access is enabled, but the opening and closing operations become more frequent and time-consuming
Solution Approach 1:
The supporting member acts as an intermediary platform that provides component access without requiring top cover opening. The toner cartridge and photosensitive drum unit can be accessed and replaced through the front opening while the top cover remains closed, eliminating repeated cover operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies the replacement process for the photosensitive drum, reducing maintenance complexity and costs by allowing the toner cartridge and photosensitive drum to be managed separately, improving the overall efficiency of the image forming process.
Implementation Method 1
a light exposure member configured to expose the photosensitive member to light
Data Source
AI summary
An image forming apparatus includes a main body, a photosensitive drum detachably attached to the main body, a light exposure member configured to expose the photosensitive member to light, a developer container configured to store a developer to be supplied to the photosensitive drum, and a supporting member disposed in the main body and configured to support the light exposure member and to hold the developer container detachably. The supporting member is configured to, while holding the developer container, move between a light exposure position where the light exposure member is located proximate to the photosensitive drum and a separation position where the light exposure member is separated from the photosensitive drum while the supporting member holds the developer container.