Image Former Sheet Readers Mutual Feedback Control
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Solution Overview
Problem
The complexity of image forming system configurations leads to increased downtime as service technicians spend time identifying failed locations, resulting in prolonged system downtime due to the difficulty in diagnosing issues.
Innovation Solution
An image forming system with a first reader and a second reader that communicate to determine abnormalities, allowing the second reader to control the first reader based on its reading results, and vice versa, to quickly identify and address issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sheet readers are installed at different locations on the conveyance path to improve accuracy in sheet conveyance control, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where each sheet reader not only reads sheets independently but also controls other readers based on reading results. The second reader controls the first reader and vice versa, creating a mutual feedback loop that enables coordinated operation and simplifies fault identification without increasing operational complexity
2Measurement precision
If multiple sheet readers are installed at different locations to improve control accuracy, then measurement precision is improved, but loss of time increases due to difficulty in identifying failures
Solution Approach 1:
The feedback mechanism between readers enables rapid fault localization. When a failure occurs, the controlled reader can immediately identify and report the abnormality to the controlling reader, significantly reducing the time service technicians need to diagnose issues compared to independent readers without mutual control
3Measurement precision
If multiple sheet readers are installed at different locations to improve control accuracy, then measurement precision is improved, but ease of repair worsens due to complicated configuration
Solution Approach 1:
The mutual control relationship creates a hierarchical structure that simplifies repair operations. The controlled reader acts as a subordinate unit that can be independently managed and controlled by the controlling reader, making fault identification and repair procedures more straightforward despite having multiple readers in the system
Data Source
AI summary
An image forming system includes an image former, a first reader, and a second reader. The image former forms an image on a recording medium. The first reader is provided upstream of an image former 300 in a conveyance direction of the recording medium, and reads the recording medium. The second reader is provided downstream of the image former 300 in the conveyance direction of a recording medium S and reads the recording medium S. The first reader and the second reader control each other based on the respective reading results.