3D Inkjet Registration Control Using Pattern Image Detection
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Solution Overview
Problem
Conventional methods for adjusting the registration of recording heads in three-dimensional image formation are inaccurate, leading to displacement issues in inkjet printers.
Innovation Solution
A control apparatus and method that adjusts the displacement between the recording positions of a foam accelerator ink and a color ink using pattern images, incorporating a foam layer and color detection, to enhance registration accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional registration adjustment methods are used, then the process is simple, but the registration accuracy is insufficient
Solution Approach 1:
The patent introduces a pattern image as an intermediary element that is printed on the medium to facilitate measurement of registration displacement. The pattern image includes specific regions that allow detection of the relative position between foam accelerator ink and color ink, serving as a mediator between the recording heads and the measurement system.
Solution Approach 2:
The patent replaces manual or mechanical registration adjustment methods with an optical measurement system. By using a reading device to read the pattern image and calculate density values, the system substitutes mechanical adjustment with optical detection and computational analysis to achieve higher precision.
2Reliability
If recording head positions are not adjusted, then the operation is simple, but displacement occurs during transportation and head exchange
Solution Approach 1:
The patent performs registration adjustment in advance by printing a pattern image and measuring displacement before actual three-dimensional image formation. This preliminary measurement and calculation of registration displacement amount allows the system to compensate for potential displacements that may occur during transportation or head exchange, ensuring reliable recording positions.
Solution Approach 2:
The patent implements a feedback mechanism where the reading device reads the pattern image, calculates the registration displacement amount based on density values, and this information is used to adjust the ejection timing or positioning of the recording head. This closed-loop feedback ensures stable recording positions despite external disturbances.
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
Achieves high-accuracy registration adjustment between recording materials, ensuring precise formation of three-dimensional images.
Implementation Method 1
heat the foam accelerator ink in an image forming apparatus that forms a three-dimensional image, thereby causing the area of the foam accelerator ink to foam
Data Source
AI summary
A control apparatus, comprises a print control unit configured to cause a pattern image to be printed on a print medium with use of a first recording material for forming a three-dimensional image and a colored second recording material, the pattern image including a print region of the first recording material and a print region of the second recording material that overlap with, or are displaced from, each other, and a processing unit configured to execute processing for adjusting a displacement between a recording position of the first recording material and a recording position of the second recording material.