Double-Sided Printing Alignment via Geometric Difference Detection
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Solution Overview
Problem
Existing double-sided printing technologies face challenges in ensuring accurate geometric alignment between front and back side images, leading to reduced effectiveness of printed products.
Innovation Solution
A method and system for double-sided printing that involves pre-determining geometric differences between printed images on both sides of a material by scanning or photographing the first printed image and adjusting the second original accordingly to align the images in terms of position, shape, and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If double-sided printing is performed using existing technologies, then printing efficiency is improved, but alignment accuracy between front and back side images deteriorates
Solution Approach 1:
The patent applies preliminary action by detecting and measuring the geometric differences (distortion, scaling, rotation) of the first printed image before printing the second image. The system pre-calculates compensation parameters and adjusts the second original image data in advance to counteract the detected geometric deviations, ensuring accurate alignment between front and back side images.
Solution Approach 2:
The patent implements feedback by using a detection device to scan and measure the actual geometric parameters of the first printed image on the printing material. This detected information is fed back to the control device, which then adjusts the second original image data based on the measured deviations, creating a closed-loop control system that ensures precise alignment.
2Ease of manufacture
If geometric differences are not corrected, then printing process simplicity is maintained, but image alignment quality deteriorates
Solution Approach 1:
The patent introduces an intermediary detection device and control device that act as mediators between the first and second printing processes. The detection device measures geometric deviations of the first printed image, and the control device uses this information to adjust the second original image data, thereby mediating the alignment between front and back side images without complicating the overall printing workflow.
3Manufacturing precision
If alignment correction is performed, then image alignment accuracy is improved, but system complexity increases
Solution Approach 1:
The patent replaces complex mechanical alignment systems with a detection-based approach. Instead of using mechanical devices to physically adjust and align the printing material or printing heads, the system uses a detection device to measure geometric deviations and a control device to digitally adjust the second original image data, substituting mechanical complexity with detection and information processing.
Data Source
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AI summary
The present invention provides a method and system for double-sided printing. The method includes: pre-determining (101) a geometric difference between a first printed image printed on a first side of a printing material on the basis of a first original and a second printed image to be printed on a second side of the printing material on the basis of a second original; and adjusting (102) the second original according to the geometric difference so as to align the first printed image with the second printed image. In the described method and system for double-sided printing, an alignment error between the front and back side images of the printing material may be comprehensively determined, and the printing of the second side may be promptly adjusted according to the alignment error, thereby improving alignment accuracy of the front and back sides.