Variable Conveyance Recording Apparatus for Spatial Deviation Control
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Solution Overview
Problem
Existing recording technologies face challenges in suppressing spatial deviation of images while maintaining high throughput, particularly when the conveyance amount varies across the recording medium, leading to potential image quality degradation and inefficiencies.
Innovation Solution
A recording apparatus with a scanning unit and conveyance unit that adjusts conveyance amounts based on the recording medium's position, using a quantization unit to generate quantized data and a distribution unit to distribute this data across multiple scanning operations with mask patterns synchronized with the quantization patterns, ensuring ink ejection is controlled to minimize spatial deviation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the conveyance amount is increased to improve throughput, then productivity is improved, but spatial deviation occurs and image quality degrades
Solution Approach 1:
The patent applies dynamics by making the conveyance amount variable rather than fixed. The conveyance unit adjusts the conveyance amount based on the position of the recording medium, using a conveyance amount determination unit that selects different conveyance amounts (first, second, or third conveyance amounts) corresponding to different regions of the recording medium. This dynamic adjustment allows the system to maintain high throughput while preventing spatial deviation in critical areas.
Solution Approach 2:
The patent implements local quality by applying different conveyance amounts to different regions of the recording medium. The control unit determines the appropriate conveyance amount based on the recording medium's position, ensuring that areas more susceptible to spatial deviation receive adjusted conveyance treatment, while other areas maintain optimal conveyance for throughput.
2Device complexity
If the quantization pattern and mask pattern are determined independently to simplify processing, then device complexity is reduced, but spatial deviation occurs in the recorded image
Solution Approach 1:
The patent merges the determination of quantization patterns and mask patterns by establishing a correlation between them. The quantization pattern determination unit and mask pattern determination unit operate in coordination, where the mask pattern is determined based on the quantization pattern. This merging approach ensures that both patterns work together to minimize spatial deviation while maintaining manageable processing complexity through integrated control.
3Manufacturing precision
If the number of ejection openings is decreased at the end part of the recording medium to reduce conveyance misalignment influence, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The patent applies dynamics by adjusting the number of ejection openings based on the recording medium's position. The control unit dynamically determines which ejection openings to activate (first, second, or third ejection openings) depending on the conveyance amount and the region being recorded. This allows the system to maintain high productivity by using all ejection openings when conveyance is stable, while reducing to fewer openings only when necessary to prevent misalignment at the end part.
Data Source
AI summary
According to an embodiment of the present disclosure, there is provided a recording apparatus, wherein a quantization pattern is applied to a unit area in an end part area located at a boundary with a central area while being offset so as to correspond to an end part of the quantization pattern.