Print Control Apparatus for Continuous Sheet Job Scheduling
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Solution Overview
Problem
Existing print control systems for continuous sheets, such as roll paper, require frequent sheet changes and cutting when handling jobs with different sizes, leading to increased processing time for multiple print jobs.
Innovation Solution
A print control apparatus and method that allows efficient execution of print jobs with different sheet sizes by utilizing a system with interchangeable sheet cassettes, automatic sheet winding, and intelligent roll sheet management, enabling continuous printing on the same sheet with minimal sheet switching and optimized sheet usage based on print job requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional cut-and-rewind procedure is used for continuous sheets, then sheet handling is simple, but processing time for multiple jobs increases significantly
Solution Approach 1:
The system performs preliminary actions by pre-calculating optimal sheet usage patterns and preparing sheet management strategies before processing multiple jobs. The control apparatus analyzes job requirements in advance and creates a comprehensive sheet management plan that minimizes cutting and rewriting operations, thereby reducing processing time while maintaining operational simplicity.
Solution Approach 2:
The system dynamically adjusts sheet handling procedures based on real-time job requirements. When a new job is received, the control apparatus evaluates whether the current sheet can accommodate the new job or if cutting/rewinding is necessary. This dynamic decision-making allows the system to adapt to varying job sizes and optimize processing time without following a rigid fixed procedure.
2Manufacturing precision
If frequent sheet cutting and exchange is performed, then sheet size matching is accurate, but time for completing multiple jobs becomes long
Solution Approach 1:
The system employs a universal sheet management approach where a single continuous sheet can serve multiple jobs with different size requirements. The control apparatus manages the sheet flexibly by determining optimal cutting points and rewriting positions, allowing one sheet to accommodate multiple job types without requiring frequent physical sheet exchanges, thus improving productivity while maintaining size matching accuracy.
Solution Approach 2:
The system changes parameters such as sheet effective length, cutting positions, and rewriting offsets to accommodate different job sizes. By dynamically adjusting these parameters based on job requirements, the system achieves accurate sheet size matching without physically exchanging sheets frequently, thereby maintaining both precision and productivity.
3Productivity
If continuous printing on same sheet is implemented, then processing time is reduced, but sheet management complexity increases
Solution Approach 1:
The control apparatus performs self-service by automatically managing sheet cutting, position calculation, and job scheduling without manual intervention. The system independently analyzes job requirements, determines optimal sheet usage patterns, and executes the printing sequence automatically, reducing processing time while the automated nature of the management reduces the operational complexity burden on users.
Solution Approach 2:
The system incorporates feedback mechanisms where the control apparatus continuously monitors sheet status, job completion, and resource utilization. This feedback allows the system to dynamically adjust sheet management strategies in real-time, optimizing processing time while the automated feedback loops simplify the management complexity by handling adjustments internally without user involvement.
Data Source
AI summary
A print control apparatus and method for determining a sheet size specified by a first print job and a sheet size specified by a second print job, deciding on a sheet width usable by the first print job and a sheet width usable by the second print job based on determined respective sheet sizes, deciding on a sheet width of a continuous sheet to be used by the first print job and the second print job based on the decided respective sheet widths, and printing an image based on the first print job and an image based on the second print job on a continuous sheet supplied from a sheet supplying unit that supplies a continuous sheet having the decided sheet width.