Thermal Printer Variable Feeding Speed for Barcode Quality
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Solution Overview
Problem
In thermal printing, the feeding speed for barcodes is typically reduced to prevent reading errors, leading to a decrease in print processing speed across the entire print surface, which affects the overall efficiency of the printing process.
Innovation Solution
A thermal printer is designed with a controller that adjusts the feeding speed for different regions of the print surface, allowing for a standard feeding speed for standard print information and a slower speed for coded information like barcodes, while also optimizing the speed for margin regions to improve throughput and maintain print quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the feeding speed is reduced for barcode printing, then the print quality of barcode is improved, but the print processing speed across the entire print surface is reduced
Solution Approach 1:
The patent divides the print surface into multiple regions (first print region for barcodes, second print region for standard information, third print region for margin) and sets different feeding speeds for each region. This segmentation allows the barcode region to use slower feeding speed for high quality while other regions use faster speeds for efficiency, resolving the contradiction between barcode quality and overall print speed.
Solution Approach 2:
The patent applies different feeding speeds to different local regions of the print surface based on their specific requirements. The barcode region receives special attention with slower feeding speed to ensure reading accuracy, while standard information and margin regions use faster speeds. This local quality approach optimizes each region's printing parameters according to its function.
2Reliability
If the feeding speed is reduced for barcode printing, then the barcode reading accuracy is improved, but the overall printing efficiency is reduced
Solution Approach 1:
The patent segments the printing process into distinct phases with different feeding speeds. During barcode printing phases, the feeding speed is reduced to ensure accurate rendering and readability. During standard information and margin printing phases, the feeding speed increases to maintain high throughput. This segmentation ensures reliability where needed while preserving overall productivity.
Solution Approach 2:
The patent dynamically adjusts the feeding speed based on the type of information being printed at each moment. The feeding speed is not fixed but varies in real-time according to the print region and content requirements, allowing the system to optimize between reliability and productivity continuously throughout the printing process.
3Manufacturing precision
If the feeding speed is reduced for barcode printing, then the print quality is improved, but the print processing time is increased
Solution Approach 1:
The patent divides the print surface into multiple regions and assigns different feeding speeds to each region based on quality requirements. The barcode region uses slower feeding speed for high quality output, while standard information and margin regions use faster speeds. This segmentation reduces the total time lost by limiting slow printing only to where it is necessary for quality.
Solution Approach 2:
The patent applies high-quality slow-speed printing locally only to the barcode region where quality is critical, while using faster speeds in other regions where quality requirements are lower. This local quality approach minimizes the time penalty by concentrating precision printing only where it provides the most value.
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
This approach enhances print quality for coded information, reduces reading errors, and increases the overall print processing speed across the entire print surface without compromising control or increasing power consumption.
Implementation Method 1
a thermal printer configured to use heat to print predetermined information such as a character, a symbol, a shape, a barcode, or the like, on each of a plurality of labels
Data Source
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AI summary
A printer using heat to print on a print medium improves a print processing speed over an entire print surface of a print medium. In print processing of a label (PL), the feeding speed at a print region (SW) for printing a barcode or the like is slower than a standard feeding speed, and the feeding speed at a margin region (SY) that has a length that is at least a predetermined length in the feeding direction (F) among the margin regions is faster than the standard feeding speed. Further, the feeding speed at a printing area (NW) for printing character, symbol, or the like, and the feeding speed at a margin region (NY) that has a length smaller than the predetermined length in the feeding direction (F) are set to the standard feeding speed. Accordingly, the print processing speed over the entire print surface of the label (PL) may be improved in the printer using heat to print on a label (PL).