Fixation Unit Cooling Duct Segmentation for Maintenance Visibility
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Solution Overview
Problem
The visibility of a recording material is compromised when the fixation unit is drawn out from the apparatus main body due to clogging, especially when multiple ducts are provided for cooling the fixing unit, which affects the maintenance and operation of the image forming apparatus.
Innovation Solution
An image forming apparatus design that includes a first duct attached to the fixation unit for cooling the fixing unit and a second duct attached to the apparatus main body, adjacent to the first duct, to maintain cooling efficiency while minimizing visibility issues during maintenance, with the second duct remaining attached to the main body even when the fixation unit is drawn out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple ducts are provided for cooling the fixing unit, then cooling efficiency is improved, but visibility of recording material decreases when fixation unit is drawn out
Solution Approach 1:
The cooling duct system is segmented into two separate ducts: a first duct attached to the fixation unit that moves with it, and a second duct attached to the apparatus main body that remains stationary. This segmentation allows each duct to serve its specific function independently, maintaining cooling efficiency while avoiding visibility obstruction when the fixation unit is drawn out for maintenance.
2Ease of operation
If fixation unit is drawn out from apparatus main body for maintenance, then accessibility is improved, but visibility of recording material decreases due to duct configuration
Solution Approach 1:
By separating the duct system into mobile and stationary components, the fixation unit can be freely drawn out for maintenance without being constrained by a fixed duct structure, improving accessibility while the stationary second duct remains out of the way.
Solution Approach 2:
Instead of attaching both ducts to the movable fixation unit, the invention inverts the conventional approach by attaching one duct to the stationary apparatus main body. This reversal ensures that not all cooling components move with the fixation unit, maintaining visibility during maintenance operations.
3Temperature
If first duct is attached to fixation unit, then cooling follows the fixing unit during movement, but complexity of duct configuration increases
Solution Approach 1:
The duct system is divided into two simple, independent ducts rather than one complex movable duct system. This segmentation simplifies the overall configuration by making each duct stationary or simply attached, avoiding the need for complex joints, seals, and positioning mechanisms that would be required for a single integrated movable duct system.
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 configuration enhances the cooling efficiency of the fixing unit while preventing the exposure of hot surfaces and improving user visibility and workability during maintenance, reducing the risk of temperature-related issues and fixation failures.
Implementation Method 1
a first duct (110) attached to a fixation unit (1X) to face a fixing unit (60) and through which a gas that cools the fixing unit (60) flows, and a second duct (120) attached to an apparatus main body (1Y) to be adjacent to the first duct (110) and through which a gas that cools the fixing unit (60) flows
Implementation Method 2
through which a gas that cools the fixing unit flows
Data Source
AI summary
An image forming apparatus includes an apparatus main body that includes an image formation unit forming an image on a recording material, a fixation unit that includes a fixing unit fixing the image formed by the image formation unit onto the recording material and that is attachable to and detachable from the apparatus main body, a first duct that is attached to the fixation unit to face the fixing unit and through which a gas that cools the fixing unit flows, and a second duct that is attached to the apparatus main body to be adjacent to the first duct and through which a gas that cools the fixing unit flows.