Sheet Feeding Layout for Copier Maintenance Access
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Solution Overview
Problem
The integration of a large-capacity feeding device with a manual feeding device in an image forming apparatus can lead to interference during maintenance, making it difficult to secure a sufficient working space due to the protrusion of the manual feed tray when the door is opened.
Innovation Solution
The image forming system includes a large-capacity feeding device that is movable horizontally between coupled and decoupled positions, allowing it to overlap with a support unit when decoupled, and a door that can be fully opened without interference, along with a cover to prevent accidental entry into the gap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the manual feed tray protrudes outward from the apparatus main body, then the workability of maintenance is reduced, but the feeding function of special sheets is improved
Solution Approach 1:
The manual feed tray is designed to be movable between a protruding state (when the door is closed) and a retracted state (when the door is open). This dynamic configuration allows the tray to adapt its position based on the door state, resolving the contradiction between maintenance accessibility and feeding functionality.
Solution Approach 2:
The control unit automatically moves the manual feed tray to a retracted position before the door is opened, and maintains it in the protruding position when the door is closed. This preliminary action prevents interference during maintenance while ensuring the feeding function is available when needed.
2Productivity
If the large-capacity feeding device is coupled to the manual feeding device, then the productivity is improved, but the working space during maintenance is reduced
Solution Approach 1:
The large-capacity feeding device is designed with movable characteristics, allowing it to be positioned at different locations relative to the apparatus main body. When maintenance is needed, it can be moved to a position that does not interfere with the open door, providing sufficient working space while maintaining its coupled functionality during normal operation.
Solution Approach 2:
The feeding system is divided into separate functional modules (large-capacity feeding device and manual feeding device) that can be independently positioned and configured. This segmentation allows the large-capacity device to be located at a position that optimizes both productivity and maintenance accessibility.
3Area of stationary object
If the manual feed tray is removed from the device body, then the working space during maintenance is improved, but the workability of maintenance is reduced
Solution Approach 1:
Instead of completely removing the manual feed tray, it is designed to dynamically change its position. The tray remains integrated with the device body but can move between protruding and retracted states, maintaining both maintenance accessibility and feeding functionality.
Solution Approach 2:
The control unit acts as an intermediary that automatically manages the position of the manual feed tray based on door state. This automation eliminates the need for manual intervention while maintaining both maintenance workability and feeding function.
Data Source
AI summary
An image forming system includes an image forming apparatus and a feeding device, the image forming apparatus including an image forming unit, a housing, an opening/closing door openable and closable between a first closed position and a first open position, and a support unit openable and closable between a second closed position and a second open position and configured to support a sheet when the support unit is at the second open position, the feeding device being movable in a direction horizontal to the image forming apparatus, configured to move to a coupled position and a decoupled position and feed the sheet to the image forming apparatus when the feeding device is at the coupled position, wherein when the feeding device is at the decoupled position and the opening/closing door is at the first open position, the feeding device overlaps the support unit as viewed from a first direction.