Inkjet Recording Apparatus Corrugate Mechanism Sheet Conveying
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Solution Overview
Problem
Inkjet recording apparatuses face challenges in maintaining conveying accuracy when handling smaller size sheets, as the sheet conveying force decreases, leading to increased load on the corrugate mechanism, which can affect image recording precision.
Innovation Solution
The apparatus incorporates a conveyor system with a corrugate mechanism and multiple conveyors and pressing portions arranged to form a corrugated sheet shape, with varying zones and pressing forces applied to ensure accurate sheet handling and image recording, particularly for sheets of different sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the conveyor roller pair and discharge roller pair are used to convey smaller size sheets, then the sheet conveying force decreases, but the load applied by the corrugate mechanism increases, affecting conveying accuracy
Solution Approach 1:
The conveying system is segmented into multiple independent conveyor units (first conveyor, second conveyors, discharge conveyor) with different functions. Each unit can be independently controlled to provide appropriate conveying force for different sheet sizes, resolving the contradiction between versatility and precision.
Solution Approach 2:
Different zones along the conveying path have different pressing forces applied to them. The pressing portions apply varying forces locally along the sheet, with stronger pressing in regions where smaller sheets need additional support, while maintaining standard pressing for larger sheets.
2Stability of the object's composition
If the corrugate mechanism forms the sheet into a corrugated shape, then curling is prevented, but the load on smaller sheets increases due to decreased conveying force
Solution Approach 1:
The corrugate mechanism is combined with multiple conveyor units and pressing portions to create an integrated system. The conveyors provide the necessary conveying force while the pressing portions apply additional localized force to maintain the corrugated shape and prevent curling, especially for smaller sheets with lower conveying force.
Solution Approach 2:
The pressing portions act as intermediaries between the corrugate mechanism and smaller sheets. They provide additional supporting force to smaller sheets that cannot adequately maintain the corrugated shape through conveying force alone, while not interfering with larger sheets that have sufficient conveying force.
3Manufacturing precision
If multiple conveyors and pressing portions are added to improve conveying accuracy, then device complexity increases
Solution Approach 1:
Each conveyor unit and pressing portion is designed to serve multiple functions: conveying sheets of different sizes, maintaining corrugated shape, and providing localized support. This multi-functionality reduces the need for additional specialized components, managing complexity while improving precision.
Data Source
AI summary
An inkjet recording apparatus may include a corrugate mechanism configured to form a sheet into a corrugated shape. The inkjet recording apparatus may be configured to receive sheets of various sizes and shapes. Accordingly, in some examples, the inkjet recording apparatus may include differently configured portions to handle sheets of different sizes or shapes. According to one arrangement, the inkjet recording apparatus may be configured to receive passage of sheets of a first size through multiple ones of the differently configured portions while receiving passage of sheets of a second size though limited ones of the differently configured portions.