Inkjet Printer Dual-Layer Screen Processing for Non-White Media
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional inkjet printing methods fail to produce images with sufficient depth and massiveness on non-white recording mediums, as the image layer is thin and the color developing property of process color ink is decreased due to the underlying white ink layer, limiting the amount of ink that can be printed and affecting the visual appeal.
Innovation Solution
The implementation of an inkjet printer with a dual ink head system and a controller that performs specific screen processing and layer formation techniques, allowing for the concurrent printing of an underlying color layer and an image layer in an overlapping manner, using the first ink head to form a base layer and the second ink head to create a second layer above or below the first, thereby enhancing the color developing property and perceived depth of the image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If process color ink is printed on an underlying white ink layer, then the real color of the ink is provided on non-white recording medium, but the color developing property of the process color ink is decreased and the image appears whitish lacking massiveness
Solution Approach 1:
The patent segments the ink dots into two distinct groups: a first dot group that forms the underlying color layer and a second dot group that forms the image layer. This segmentation allows each group to serve its specific function independently, with the first group providing the base color and the second group providing the detailed image with full color developing property.
Solution Approach 2:
The patent introduces a spatial dimension by positioning the first dot group and second dot group at different locations or layers. The first dot group is positioned to form an underlying layer, while the second dot group is positioned to form an image layer above or below it, creating a multi-layer structure that resolves the contradiction between underlying color support and color developing property.
2Shape
If the image layer is made thicker to provide depth and massiveness, then the visual impact is improved, but the amount of ink that can be accepted by the recording medium is limited
Solution Approach 1:
The patent segments the ink deposition into two functional groups: the first dot group that creates the underlying color layer and the second dot group that creates the image layer. This segmentation allows the recording medium to accept ink in an organized manner, with each layer serving its specific purpose without excessive ink accumulation that would overwhelm the medium.
Solution Approach 2:
The patent applies local quality by differentiating the characteristics of the two dot groups. The first dot group is optimized for forming a solid underlying layer with good adhesion, while the second dot group is optimized for forming a transparent or translucent image layer that allows light transmission. This local differentiation achieves depth perception without exceeding the ink capacity of the recording medium.
3Manufacturing precision
If white ink is used to form an underlying color layer, then the real color of process color ink is provided on non-white recording medium, but the image appears whitish and lacks massiveness
Solution Approach 1:
The patent segments the ink dots into a first dot group for the underlying color layer and a second dot group for the image layer. This segmentation allows the white ink to form a solid underlying layer that provides color fidelity, while the second dot group can be positioned and configured to maintain visual massiveness and prevent the whitish appearance.
Solution Approach 2:
The patent positions the second dot group in a different spatial dimension relative to the first dot group, creating an overlapping structure where the image layer is positioned above or below the underlying layer. This dimensional arrangement allows the white ink to provide color fidelity while the overlapped structure maintains visual depth and massiveness.
Data Source
AI summary
An inkjet printer forms ink dots of a first ink and ink dots of a second ink on a recording medium. The inkjet printer performs first screen processing on image data of the second ink to generate a first dot group including the ink dots of the second ink, and performs second screen processing on image data of the second ink to generate a second dot group including the ink dots of the second ink. The inkjet printer forms a first printing layer, on the recording medium, of the ink dots of the first ink and the ink dots of the first dot group, and forms a second printing layer of the ink dots of the second ink, above or below the first printing layer.