Image Forming System Defect Segmentation
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Solution Overview
Problem
Existing image forming systems struggle to effectively reduce streak-like image defects, as adjustment operations often fail to correct these issues, leading to unnecessary waste and reduced productivity.
Innovation Solution
An image forming system that includes an inspection unit to differentiate between positional deviation and streak-like image defects, allowing for targeted adjustment operations only when positional deviations occur, thereby preventing unnecessary adjustments for defects that cannot be corrected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If adjustment operations are executed for all detected image defects, then image quality improvement is pursued, but productivity deteriorates due to unnecessary adjustments for streak-like defects that cannot be corrected
Solution Approach 1:
The inspection unit segments image defects into distinct types: positional deviations (first type) and streak-like images (second type). This segmentation enables differential handling where only positional deviations trigger adjustment operations, while streak-like defects allow continuous image formation. The segmentation resolves the contradiction by preventing unnecessary adjustments for unccorrectable defects while maintaining quality control for correctable issues.
2Productivity
If adjustment operations are stopped for streak-like defects, then productivity is improved, but image quality control deteriorates if positional deviations are not properly identified
Solution Approach 1:
The inspection unit provides feedback to the controller about the specific type of defect detected. This feedback mechanism enables the controller to make informed decisions: executing adjustment operations for positional deviations while allowing continuous formation for streak-like defects. The feedback loop ensures that productivity improvements do not compromise quality control, as each defect type receives appropriate handling based on its correctability.
Data Source
AI summary
An image forming system comprising an image forming apparatus forms an image, a reading apparatus reads the image, an inspection unit inspects the image read by the reading apparatus to detect defect on the image, and a controller configured to control, in a case where a first type of defect is detected by the inspection unit during formation of a plurality of images by the image forming apparatus, the image forming apparatus to stop the formation, and execute an adjustment operation for adjusting a quality of an image to be formed by the image forming apparatus, and control, in a case where a second type of defect is detected by the inspection unit during the formation, the image forming apparatus to continue the formation, wherein the second type of defect is different from the first type of defect.