Sheet Guide Positioning in Detachable Image Forming Units
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Solution Overview
Problem
Conventional image forming apparatuses face issues with decreased position accuracy and sheet carrying disturbances due to independently positioned detachable units and sheet guides.
Innovation Solution
The image forming apparatus integrates a detachable unit with a movably disposed sheet guide that abuts a guide position part within the device main body, ensuring the sheet guide is positioned at a predetermined location when the unit is mounted, maintaining high position accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the detachable unit and sheet guide are independently positioned, then the detachable unit can be easily attached and detached, but the position accuracy of the sheet guide decreases and sheet carrying is disturbed
Solution Approach 1:
The sheet guide is integrated into the detachable unit, merging two previously separate components. This ensures that when the detachable unit is attached to the device main body, the sheet guide automatically assumes its correct position relative to the detachable unit, thereby maintaining position accuracy while preserving ease of attachment and detachment.
Solution Approach 2:
The sheet guide is disposed inside the detachable unit, creating a nested structure where the sheet guide is contained within the detachable unit. This nesting ensures that the sheet guide moves together with the detachable unit and maintains its positional relationship, solving the position accuracy problem while keeping the detachable unit removable.
2Stability of the object's composition
If the sheet guide is fixed in the device main body, then the sheet guide position is stable, but it cannot adapt to the detachable unit's movement and position accuracy decreases
Solution Approach 1:
By merging the sheet guide with the detachable unit, the sheet guide becomes part of the movable assembly. This allows the sheet guide to maintain a stable position relative to the detachable unit while moving together as a unit, ensuring both stability and position accuracy.
Solution Approach 2:
The sheet guide is designed to move dynamically with the detachable unit rather than being fixed. This dynamic configuration allows the sheet guide to adapt its position according to the detachable unit's movement, maintaining accurate positioning throughout the attachment and detachment cycles.
Data Source
AI summary
An image forming apparatus includes a device main body, a detachable unit that is detachable and attachable to the device main body, a sheet guide that guides a pathway of sheet, and a guide position part that regulates a position of the sheet guide. The guide position part is disposed in the device main body, the sheet guide is disposed movably with respect to the detachable unit, and when the detachable unit is mounted on the device main body, a position of the sheet guide is regulated by abutting the guide position part.