Printing Apparatus Removal and Pressing Rollers for Surface Fluff Control
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Solution Overview
Problem
Printing apparatuses face quality issues due to attached materials like fluff or lint on the printing medium, which cause ink ejection defects and lower print quality.
Innovation Solution
A printing apparatus with a removal portion to contact and remove attached materials, a pressing portion to flatten the surface, and a liquid ejecting portion to ensure high-quality printing, utilizing a combination of adhesive and pressing rollers to manage the printing medium surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a removal portion contacts the printing surface to remove attached materials, then print quality is improved, but the printing surface may become disturbed (fluffed or wrinkled)
Solution Approach 1:
The removal portion removes attached materials from the printing surface before the liquid ejecting portion performs printing. This preliminary removal action prevents attached materials from interfering with ink ejection, thereby improving print quality without causing disturbance during the actual printing process
Solution Approach 2:
The removal portion acts as an intermediary component between the printing surface and the liquid ejecting portion. It temporarily contacts the printing surface to remove contaminants, then separates before the printing process, preventing direct contact between attached materials and the ink jet system
2Productivity
If the liquid ejecting portion ejects ink directly onto the printing surface, then printing is performed, but attached materials cause ink ejection defects and lower print quality
Solution Approach 1:
The removal portion performs preliminary cleaning of the printing surface before the liquid ejecting portion deposits ink. This ensures the printing surface is free from attached materials that would otherwise cause ink ejection defects, maintaining both printing productivity and quality
Solution Approach 2:
The removal portion applies a counter-action to eliminate attached materials before they can interfere with the ink ejection process. By removing fluff and lint in advance, the system prevents the harmful effects of these materials on print quality
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses print quality degradation by removing attached materials and flattening the printing surface, reducing friction and disturbances, and ensuring accurate ink ejection.
Implementation Method 1
an adhesive roller that includes an adhesive outer peripheral surface and is able to rotate in a state in which an adhesive outer peripheral surface thereof is in contact with the printing surface
Implementation Method 2
a pressing roller that includes a harder outer peripheral surface than the printing medium, able to rotate in a state in which the hard outer peripheral surface is in contact with the printing surface
Data Source
AI summary
A printing apparatus includes a removal portion that removes attached materials attached to a printing surface by coming in contact with the printing surface of a printing medium; a pressing portion that presses the printing surface with which the removal portion is in contact; and a liquid ejecting portion that performs printing by ejecting a liquid with respect to the printing surface pressed by the pressing portion.