Image Recording Apparatus Abutment Mechanism Sheet Conveyance
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Solution Overview
Problem
Conventional image recording apparatuses face issues with sheet floating during conveyance, leading to inconsistent image quality due to variations in abutment positions and excessive load on the sheet, especially when using integrally molded or separately molded abutment portions.
Innovation Solution
An image recording apparatus with a first abutment member and second abutment members arranged separately and independently, featuring multiple abutment portions that abut against the sheet without imparting excessive load, ensuring stable abutment positions and precise image recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a plurality of abutment portions are integrally molded of a synthetic resin, then the abutment portions are moved together due to abutment against the sheet, but some abutment portions that do not abut against the sheet are also moved, which increases load on the sheet and conveyance resistance
Solution Approach 1:
The abutment portions are divided into separate independent components rather than being integrally molded. Each abutment portion is independently movable along the conveyance direction, allowing only the actively engaged abutment portions to move with the sheet while others remain stationary, thereby reducing unnecessary load on the sheet.
2Force
If a plurality of abutment portions are molded independently of a synthetic resin, then the abutment portions can move independently, but positions at which the sheet is pressed by the respective abutment portions are varied due to any variation during the molding
Solution Approach 1:
The abutment portions are configured to be movable along the conveyance direction with elastic restoration capability. This feedback mechanism allows the abutment portions to automatically adjust their positions to maintain consistent contact with the sheet, compensating for molding variations and ensuring uniform pressing positions across different abutment portions.
3Reliability
If the sheet floats from a member supporting the sheet during conveyance, then the distance between the sheet and the recording unit changes, but the conventional abutment structures either increase load or vary abutment positions
Solution Approach 1:
The abutment portions are designed as dynamic components that can move independently along the conveyance direction while maintaining elastic restoration. This dynamic capability allows the abutment portions to adapt to sheet position variations and floating conditions, ensuring consistent image recording quality without requiring complex fixed support structures.
Data Source
AI summary
An image recording apparatus includes: a recording section which records an image on a sheet conveyed in a conveyance direction in a conveyance route; a first abutment member having a plurality of first abutment portions arranged apart from each other in a width direction orthogonal to the conveyance direction, and configured to abut against the sheet conveyed in the conveyance route; a first supporting member which supports the first abutment member; and a plurality of second abutment members which are supported by the first supporting member at both sides in the width direction, respectively, of the first abutment member, at a distance from the first abutment member, and each of which has a second abutment portion capable of contacting with the sheet conveyed in the conveyance route.