Vertical Processing Unit Sliding Mechanism for Compact Image Forming Apparatus
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Solution Overview
Problem
Conventional image forming apparatuses face challenges in reducing installation area and performing maintenance tasks on processing units due to their side-facing configuration, which limits the movement and accessibility of paper feed and receiving trays, especially for heavier units.
Innovation Solution
The configuration of the processing device includes a first processing unit and a second processing unit disposed vertically on the same side face of the apparatus main body, with the second unit capable of sliding movement in the approaching-leaving direction, allowing for reduced installation area and improved maintenance access by exposing parts of the first processing unit for easier maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first processing unit and the second processing unit are disposed on either side face on opposite sides of the apparatus main body, then the installation area increases, but the maintenance access is improved
Solution Approach 1:
The patent transitions from a horizontal arrangement (processing units on opposite side faces) to a vertical arrangement (processing units stacked on the same side face). This dimensional change allows multiple processing units to be compactly arranged in the vertical direction, reducing the horizontal installation area while maintaining accessibility through the sliding mechanism
2Area of stationary object
If the paper feed tray and the paper receiving tray are disposed in vertical direction, then the installation area is reduced, but the maintenance workability deteriorates
Solution Approach 1:
The patent introduces a sliding mechanism that allows the upper processing unit to move horizontally relative to the lower processing unit and apparatus main body. This dynamic capability enables the upper unit to be slid away during maintenance, providing access to the lower unit and connection sections, thus resolving the maintenance accessibility issue caused by vertical stacking
Solution Approach 2:
The patent divides the processing units into separable, independently movable modules. Each processing unit can be independently slid away from the apparatus main body, allowing maintenance personnel to access connection sections and perform repairs on individual units without disassembling the entire system
3Ease of operation
If the processing units are configured to be swingable, then the maintenance access is improved for lightweight units, but the configuration cannot be applied to heavy processing units
Solution Approach 1:
The patent replaces the swingable (rotational) mechanical system with a sliding (linear) mechanical system. The sliding mechanism uses guide rails and sliding surfaces to enable horizontal movement of processing units, providing stable support and easy maintenance access for both lightweight and heavy units without the structural limitations of swingable configurations
Data Source
AI summary
An image forming apparatus (10) includes an apparatus main body (20), a first processing unit (30) and a second processing unit (40). The apparatus main body (20) performs an image forming process onto a paper sheet. The first processing unit (30) and the second processing unit (40) are disposed in vertical direction (91) such that one is located on an upside of the other on a same side face's side of the apparatus main body 20. The second processing unit (40) is disposed on the upside of the first processing unit (30), and is configured in such a manner as to be capable of being slidingly moved in an approaching-leaving direction (92) in relation to the apparatus main body (20).