Continuous Sheet Print Control with End Mark Detection
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Solution Overview
Problem
Existing print control technologies for continuous sheets often result in waste due to inaccurate detection of remaining sheet amount and inefficient processing, leading to delays in preparing print data before the sheet runs out.
Innovation Solution
A print control apparatus and method that optimizes the use of continuous sheets by accurately determining the remaining sheet amount and merging print jobs to minimize waste and enhance processing efficiency, allowing for continuous printing without the need for frequent sheet changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the remaining sheet amount is detected and printing is limited to that amount, then sheet waste is reduced, but printing processing efficiency deteriorates due to frequent sheet replacement and delays in preparing print data
Solution Approach 1:
The system performs preliminary actions by detecting the end mark on the continuous sheet in advance, calculating the remaining sheet amount before printing starts, and pre-processing print data in preparation for sheet replacement. This allows the system to proactively manage sheet consumption rather than reactively stopping when the sheet runs out, thereby maintaining printing efficiency while reducing waste.
Solution Approach 2:
The system implements feedback by continuously monitoring the sheet consumption status through end mark detection, calculating remaining amounts, and using this information to control the printing process. The feedback mechanism enables the system to adjust printing operations dynamically, optimizing the balance between sheet utilization and processing efficiency by knowing exactly how much sheet remains available.
2Productivity
If printing is performed up to the end of the continuous sheet, then productivity is improved by continuous printing, but sheet waste increases due to inaccurate detection of remaining amount
Solution Approach 1:
The system replaces mechanical sheet measurement methods with an optical detection mechanism that reads end marks on the sheet. This substitution enables precise, non-contact detection of sheet position and remaining amount, allowing the system to accurately track sheet consumption without physical measurement errors, thereby reducing waste while maintaining continuous printing capability.
Solution Approach 2:
The system performs self-service by automatically detecting the end mark, calculating remaining sheet amount, and managing sheet replacement timing without external intervention. This automation eliminates manual monitoring and decision-making, enabling the system to optimize sheet usage independently while maintaining continuous operation, thus reducing waste without sacrificing productivity.
3Measurement precision
If print data is prepared after sheet replacement, then accuracy of sheet usage is improved, but processing time increases causing delays
Solution Approach 1:
The system performs preliminary processing of print data in advance, before sheet replacement occurs. By preparing print data ahead of time while the current sheet is still being used, the system eliminates idle time during sheet replacement and ensures accurate sheet usage tracking is already established, thus improving both precision and speed.
Solution Approach 2:
The system maintains continuity of useful action by overlapping print data preparation with the remaining usage of the current sheet. Instead of stopping processing to wait for sheet replacement, the system continues preparing print data in parallel, ensuring that when sheet replacement occurs, the next print job is already ready to go, eliminating delays while maintaining accurate sheet consumption records.
Data Source
AI summary
Whether a continuous sheet usable for printing on the basis of first print data and a continuous sheet usable for printing on the basis of second print data are the same or not is determined. If it is determined that they are the same, an image based on the first print data and an image based on the second print data are printed continuously on a continuous sheet. When an image based on the second print data is arranged at an end of a continuous sheet, the second print data is assigned to the beginning of print data to be printed on another continuous sheet.