Image Forming Apparatus Grip Portion for Cartridge Replacement
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Solution Overview
Problem
Conventional image forming apparatuses require users to insert their hands inside the frame body to replace process cartridges, which is inconvenient and potentially hazardous.
Innovation Solution
The image forming apparatus includes a housing with a movable cover and a grip portion on the process unit that allows users to detach and attach the process unit without opening the frame body, using protruding holding portions for easy access and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the cover is kept closed to maintain internal cleanliness, then the apparatus's internal cleanliness is maintained, but users cannot access the process cartridge for replacement
Solution Approach 1:
The process cartridge is segmented from the main apparatus body, allowing it to be detached and replaced independently. The grip portion further segments the access mechanism, enabling external manipulation without opening the cover.
Solution Approach 2:
The grip portion acts as an intermediary mechanism between the user and the process cartridge. It transmits user force to the cartridge while allowing the cover to remain closed, mediating the interaction without requiring direct hand insertion.
2Ease of operation
If the cover is opened to access the process cartridge, then users can replace the cartridge easily, but the apparatus's internal cleanliness is compromised
Solution Approach 1:
The process cartridge is extracted from the apparatus body as a separate replaceable unit. The grip portion extends the extraction mechanism outward, allowing the cartridge to be removed without extracting the cover or opening the apparatus enclosure.
3Ease of operation
If the grip portion protrudes outward, then users can access the process cartridge externally without inserting hands, but the device complexity increases
Solution Approach 1:
The grip portion is designed as a movable element that dynamically adjusts its position. It protrudes outward during cartridge replacement operations and retracts when not in use, allowing the mechanism to adapt between different operational states without permanent structural complexity.
Data Source
AI summary
An image forming apparatus includes a housing, a cover, a process unit, and a grip portion. The housing has an opening portion defining an open end. The cover is movable between a closing position to close the open end and an opening position to open the open end. The cover defines the opening portion and has one end portion to define the open end. The process unit is configured to be attached to and detached from the housing through the opening portion. The process unit includes a developer chamber configured to accommodate therein developer. The grip portion is provided at the process unit, and has a protruding portion protruding outward between the open end and the one end portion when the process unit has been attached to the housing and the cover is at the closing position.