Sensor-less Toner Bottle Level Detection and Control
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Solution Overview
Problem
Current toner-based image forming devices face challenges in efficiently emptying nearly-depleted toner bottles without compromising image quality, leading to premature replacement and waste due to conservative estimation methods and the absence of effective sensor-less detection algorithms.
Innovation Solution
Implementing advanced sensor-less toner bottle level detection algorithms that adjust toner control parameters, such as pixel count gain, to maintain image quality by effectively depleting remaining toner, delaying image quality degradation, and ensuring minimal waste by modifying toner control algorithms to increase toner transport as the bottle approaches depletion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conservative toner estimation algorithms are used to ensure image quality, then image quality is maintained, but toner waste increases due to premature replacement
Solution Approach 1:
The system dynamically adjusts toner control parameters (such as pixel count gain) based on real-time toner bottle level detection. As the bottle approaches depletion, the algorithm modifies transport parameters to optimize toner usage, allowing complete emptying while maintaining image quality throughout the toner's lifecycle
Solution Approach 2:
The invention changes physical parameters of toner transport by adjusting control gains and transport parameters based on detected toner levels. This allows the system to adapt toner flow characteristics to maintain consistent image quality while maximizing toner utilization until the bottle is truly depleted
2Measurement precision
If sensors are installed to detect toner levels, then detection accuracy improves, but device complexity and cost increase
Solution Approach 1:
The invention replaces physical sensor systems with a sensor-less algorithmic approach. The system uses comprehensive algorithms that monitor toner dispense rates and control parameters to detect toner levels, eliminating the need for physical sensors while maintaining detection accuracy
Solution Approach 2:
The system uses its existing operational data (toner dispense rates, control parameters, imaging operations) to self-detect toner levels without external sensing components. The algorithm leverages information already collected during normal operation to determine toner bottle status
3Loss of substance
If toner transport is increased to deplete remaining toner, then toner waste reduces, but image quality may deteriorate
Solution Approach 1:
The system dynamically adjusts toner control parameters based on real-time toner bottle level detection. As the bottle approaches depletion, the algorithm modifies transport parameters to optimize toner usage, allowing complete emptying while maintaining image quality throughout the toner's lifecycle
Solution Approach 2:
The system continuously monitors toner dispense rates and control parameters, using this feedback to adjust transport parameters. This closed-loop control ensures that increased toner transport does not compromise image quality, as the system adapts to maintain optimal performance
Data Source
AI summary
A system and method are provided for operating an image forming device in a first processor-controlled toner control operating mode to maintain a substantially constant dispense rate of toner material from a toner source or bottle. The disclosed systems and methods improve toner material dispensing from the toner source or bottle in the image forming device by transitioning to a second processor-controlled toner control operating mode as an amount of toner material in the toner source or bottle is determined to be in a depleted, or nearly-exhausted, state. The disclosed systems and methods compensate for a determined decrease in a toner dispense rate occurring as an amount of toner material remaining in the toner source or bottle is nearly depleted. One or more toner control parameters, including a pixel count gain, are modified in the second processor-controlled toner control operating mode.