Inkjet Recording Head Movable Support for Borderless Printing
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Solution Overview
Problem
Inkjet-recording devices face challenges in performing high-speed borderless recording due to the deformation of recording paper caused by an increased groove width in the platen, leading to uneven nozzle-to-paper distances and recording issues.
Innovation Solution
An inkjet-recording device with a movable supporting member linked to a conveying member, featuring a rotating plate with a guide groove to slide the supporting member in the conveying direction, ensuring the recording paper is consistently supported and maintaining a fixed distance from the recording head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the groove width in the platen is increased to accommodate a larger recording head for high-speed recording, then the recording speed and number of nozzles are improved, but the recording paper deforms by bending downward into the groove causing uneven nozzle-to-paper distances
Solution Approach 1:
A movable support piece is introduced as an intermediary element between the recording paper and the groove. This support piece has a paper support surface that extends over the groove, providing continuous support to the recording paper as it passes over the groove area. The support piece effectively mediates the interaction between the paper and the groove, preventing paper deformation while allowing the groove to maintain its necessary width for the enlarged recording head.
Solution Approach 2:
The support piece is designed to be movable rather than fixed, allowing it to dynamically adapt to the passage of recording paper. The support piece can move in the width direction of the groove to follow the contour of the recording paper, ensuring continuous support while accommodating variations in paper thickness and tension during the recording process.
2Stability of the object's composition
If the rotational radius of the paper support members is increased to maintain parallel support of the recording paper, then the paper support is improved, but the size of the inkjet-recording device increases
Solution Approach 1:
The support piece is designed with mobility along the width direction of the groove, allowing it to dynamically adjust its position rather than requiring a large fixed rotational radius. This dynamic adjustment capability enables the support piece to maintain parallel support of the recording paper while occupying a compact space within the device.
Solution Approach 2:
The support piece can change its position parameter in the width direction of the groove to optimize paper support. By allowing the support piece to move rather than fixing it at a specific radius, the system achieves effective paper support with reduced device dimensions.
Data Source
AI summary
An inkjet-recording device includes a recording head, a platen, a conveying member, and a movable supporting member. The recording head ejects ink droplets onto a recording medium. The platen is disposed in confrontation with the recording head to support the recording medium while keeping a predetermined distance from the recording head. The conveying member conveys the recording medium in a conveying direction. The movable supporting member is linked to the conveying member to slide in the conveying direction while supporting the recording medium.