Print System Sheet Type Detection for Interrupt Adjustment
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Solution Overview
Problem
In print systems where inline sensors adjust image forming position and quality by reading patches on the print product, the absence of space for printing patches can lead to unintended defects if a sheet with specific positional requirements, like tab dividers, is used for interrupt adjustments, making it difficult for users to determine whether to perform interrupt adjustments without disrupting the sheet order.
Innovation Solution
A print system that includes an information processing apparatus and a printing apparatus capable of inserting a chart sheet with tone correction patches, where the decision to insert the chart sheet is based on the type of sheet used in the print job, utilizing a colorimeter for real-time control and feedback to prevent unintended results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If interrupt adjustment is performed by inserting a chart sheet during print job execution, then image forming position and quality can be adjusted, but sheets with specific positional requirements (e.g., tab dividers) may be consumed, disrupting the intended sheet order
Solution Approach 1:
The system performs preliminary identification of sheet types before executing interrupt adjustment. By detecting whether the current sheet is a tab divider or has specific positional requirements in advance, the system can prevent disruption of sheet order while still enabling image quality adjustment when appropriate
Solution Approach 2:
The system implements feedback control by continuously monitoring sheet type information and adjusting the interrupt adjustment execution decision based on real-time sheet sequence data. This feedback mechanism ensures that chart sheets are only inserted when they will not disrupt the intended sheet order
2Ease of operation
If the user must determine in advance whether to perform interrupt adjustment, then sheet order can be maintained, but the operation becomes complex and difficult to set
Solution Approach 1:
The system performs automatic sheet type identification and interrupt adjustment decision-making without requiring user intervention. The printing apparatus autonomously determines whether interrupt adjustment should be executed based on detected sheet types, eliminating the need for complex user settings while maintaining sheet order integrity
3Productivity
If a sheet feeder is used for both print job and interrupt adjustment job, then resource utilization is improved, but sheets with specific positions may be consumed by interrupt adjustment, generating defects
Solution Approach 1:
The system dynamically adjusts the decision to perform interrupt adjustment based on real-time sheet type detection. By making the interrupt adjustment execution conditional on sheet type information, the system optimizes sheet feeder utilization while preventing defects caused by consuming sheets with specific positional requirements
Data Source
AI summary
A print system having an information processing apparatus and a printing apparatus configured to receive a print job from the information processing apparatus and execute printing. The information processing apparatus sets so as to insert a chart sheet on which patches for tone correction have been printed for the print job. In a case where the print job includes a setting to insert the chart sheet, the printing apparatus controls whether or not to insert the chart sheet based on a type of sheet to be used in the print job.