Dynamic Image Check Data Selection for Variable Printing
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Solution Overview
Problem
Existing image check systems are inefficient, particularly when RIP images are not available or when dealing with variable data printing, as they cannot perform effective image checks without prior proof output or when sheets are colored or for additional printing, leading to incomplete or inefficient image verification processes.
Innovation Solution
An image control apparatus that determines whether to use proof image data or input image data for image checks based on page settings, allowing for efficient comparison and verification by using proof image data for colored or additional printing sheets and input data for variable data printing areas, enabling flexible and accurate image checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If RIP image data is used as correct image data for efficient image check, then image check efficiency is improved, but image check cannot be performed when RIP image does not exist (colored sheets, additional printing sheets, variable data printing)
Solution Approach 1:
The system dynamically switches between using RIP image data and Scan image data as correct image data based on the print job type. For ordinary print jobs, RIP image data is used for efficient checking. For colored sheets, additional printing sheets, and variable data printing, the system automatically switches to using Scan image data, ensuring adaptability across different sheet types while maintaining checking capability.
2Adaptability or versatility
If Scan image data is used as correct image data, then image check can be performed on all sheet types including colored and additional printing sheets, but prior proof output is required which reduces efficiency
Solution Approach 1:
The system applies different checking methods to different local cases: for ordinary print jobs where RIP image data is available, it uses RIP image data for efficient checking without requiring prior proof output. For colored sheets, additional printing sheets, and variable data printing, it locally switches to using Scan image data. This localized approach optimizes efficiency for each specific case rather than uniformly requiring proof output for all jobs.
3Device complexity
If only one method of obtaining correct image data is used, then system complexity is reduced, but cannot handle diverse printing scenarios (colored sheets, variable data printing, missing RIP images)
Solution Approach 1:
The system implements a universal image check mechanism that can handle multiple printing scenarios through a single unified framework. It determines the appropriate correct image data source (RIP image data or Scan image data) based on the print job type, making the system adaptable to colored sheets, additional printing sheets, variable data printing, and cases where RIP image data is unavailable, all through one multi-functional checking system.
Data Source
AI summary
Provided is an image control apparatus that includes a hardware processor. The hardware processor obtains read image data generated by reading an image formed on a sheet, sets read proof image data generated by reading a proof image formed on a sheet in a proof output as first correct image data, sets input image data as second correct image data, determines which one of the first correct image data and the second correct image data is used as correct image data in an image check for each page, and performs the image check by comparing the read image data obtained by the hardware processor with the first correct image data or the second correct image data determined as the correct image data by the hardware processor.