Image Forming System Drive Mode Sound Source Identification
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Solution Overview
Problem
Existing image forming systems face challenges in accurately identifying components generating abnormal sounds due to overlapping frequency bands from multiple drive sources.
Innovation Solution
An image forming system that includes a sound detection unit and a control unit capable of implementing a dedicated drive mode, where at least one drive unit operates while others are inactive, allowing for precise identification of abnormal sound sources based on detected operation sounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple drive sources operate concurrently during image formation, then productivity is improved, but measurement precision deteriorates due to overlapping frequency bands making it difficult to identify abnormal sound sources
Solution Approach 1:
The patent segments the operation into two distinct phases: a normal image formation mode where multiple drive sources operate concurrently for high productivity, and a diagnostic drive mode where drive sources are operated individually for precise sound source identification. This segmentation allows the system to switch between productivity optimization and measurement precision based on operational requirements.
Solution Approach 2:
The patent performs preliminary diagnostic actions by operating each drive source individually in a dedicated drive mode before or during maintenance scheduling. This preliminary action isolates the sound sources and enables accurate identification of abnormal sounds without the interference of overlapping frequency bands from multiple concurrent drive sources.
2Measurement precision
If individual drive sources are operated for sound detection, then measurement precision is improved, but productivity deteriorates due to increased operation time
Solution Approach 1:
The patent implements periodic diagnostic operations where the control unit schedules individual drive source operations at predetermined intervals or based on usage counters. This periodic action allows the system to maintain high productivity during normal operation while periodically performing precise sound source identification, balancing both measurement precision and operational efficiency.
Solution Approach 2:
The system performs self-diagnosis by automatically switching between image formation mode and individual drive mode based on predetermined conditions such as operation counts or scheduled maintenance intervals. This self-service mechanism eliminates the need for manual intervention and ensures that diagnostic measurements are performed at appropriate times without significantly impacting overall productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system significantly improves the accuracy of identifying components causing abnormal sounds by isolating operation sounds during the dedicated drive mode, enabling timely maintenance and reducing downtime.
Implementation Method 1
a sound detection unit configured to detect operation sounds of the plurality of drive units
Data Source
AI summary
An image forming system includes an image forming unit, a plurality of drive units configured to drive the image forming unit, a sound detection unit configured to detect operation sounds of the plurality of drive units, and a control unit configured to implement a drive mode for operating at least one of the plurality of drive units and not operating other drive units, without forming an image on a recording material by the image forming unit, wherein the control unit implements the drive mode when the value of a counter reaches a threshold value, the counter being incremented with each image formation on a recording material by the image forming unit, and wherein the identification operation identifies a component causing the predetermined sound based on the operation sounds detected by the sound detection unit during a period in which the drive mode is being implemented.