Dual Image Forming System Abnormality Detection
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Solution Overview
Problem
In image forming systems with two connected apparatuses, it is challenging to detect which apparatus is responsible for an abnormality in image formation, as both form images on the same sheet, making it difficult to isolate and diagnose issues effectively.
Innovation Solution
The system includes a first and second image forming apparatus, with reading sections positioned between and downstream of each apparatus on the conveyance path, allowing for image data inspection to determine abnormalities in each apparatus by forming images on opposite sides of the recording medium and using inspection data from these sections to identify defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two image forming apparatuses form images on the same sheet, then productivity is improved through batch processing, but it becomes difficult to detect which apparatus caused an abnormality
Solution Approach 1:
The patent divides the inspection process into two separate inspection stages: first inspection between the two image forming apparatuses and second inspection after both apparatuses complete image formation. This segmentation allows identification of which apparatus caused abnormalities by comparing inspection results from different stages, resolving the contradiction between maintaining high productivity and enabling accurate abnormality detection.
2Measurement precision
If reading sections are installed to inspect each apparatus separately, then abnormality detection capability is improved, but device complexity increases
Solution Approach 1:
The patent employs reading sections that perform multiple functions: they conduct first inspection to detect abnormalities from the first image forming apparatus, and subsequently conduct second inspection to detect abnormalities from the second image forming apparatus. This multi-functionality allows accurate abnormality detection without requiring separate dedicated inspection systems for each apparatus, thereby reducing overall system complexity while maintaining high detection precision.
Data Source
AI summary
An image forming system may comprise a first image forming apparatus arranged on a conveyance path of a recording medium, a second image forming apparatus arranged on the conveyance path at a position farther downstream than the first image forming apparatus in a conveyance direction of the recording medium, a first reading section arranged on the conveyance path between the first image forming apparatus and the second image forming apparatus, and reads the recording medium conveyed through the conveyance path, and a second reading section arranged on the conveyance path at a position farther downstream than the second image forming apparatus in the conveyance direction, and reads the recording medium conveyed through the conveyance path.