Image Forming Position Correction Using Temporary Mark Positions
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Solution Overview
Problem
Existing image forming systems face increased analysis time and load when correcting image forming positions due to the separation of reference points from analysis regions, leading to difficulties in specifying actual positions for positional deviation correction.
Innovation Solution
An image forming system that defines a temporary position in place of the actual position of a reference point when it is not included in the analysis region, using a processor to correct the image forming position based on this temporary position, even if the reference point is separated from the analysis region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a local analysis region is set for each mark to reduce analysis time and load, then analysis efficiency is improved, but the reference point may be separated from the analysis region when positional deviation is large
Solution Approach 1:
The system dynamically adjusts the analysis region based on the detected position of the mark. When the reference point is separated from the initial analysis region, the system expands or repositions the analysis region to include the reference point, ensuring reliable detection while maintaining efficiency through localized analysis.
Solution Approach 2:
The system performs preliminary detection of the mark position and then adjusts the analysis region accordingly. By preliminarily identifying where the mark is located and proactively expanding the analysis region before full analysis, the system prevents reference point separation while optimizing analysis efficiency.
2Reliability
If the analysis region is expanded to include the reference point when separated, then position detection reliability is improved, but analysis time and load increase
Solution Approach 1:
The analysis region is dynamically adjusted only when necessary. The system maintains a compact analysis region for normal cases and expands it only when the reference point is detected to be separated, minimizing unnecessary processing time while ensuring reliability when needed.
Solution Approach 2:
The system applies different analysis strategies to different situations. When the reference point is within the initial analysis region, standard localized analysis is performed. When separation is detected, the analysis region is expanded to include the reference point, applying appropriate quality of analysis to each case.
Data Source
AI summary
An image forming system includes: an image scanning portion that scans an image formed on a paper; and a processor that controls image forming based on a scanned image obtained through scanning of the image scanning portion, in which the processor is configured to: define, in an intermediate state in which a reference point of a mark for positional deviation detection is not included in an analysis region set with respect to the scanned image and a part of the mark is included in the analysis region, a temporary position in place of an actual position of the reference point based on the part of the mark; and correct an image forming position on the paper based on the temporary position.