High Voltage Power Supply System for Image Formation Apparatus
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Solution Overview
Problem
Conventional high voltage power supply systems for image formation apparatuses face challenges in maintaining optimal image formation results due to variations in ambient temperature and humidity, as they only adjust output voltage based on the type of recording medium, failing to account for changes in temperature and humidity.
Innovation Solution
A high voltage power supply system that includes a current detector, voltage detector, conversion section, selector, variable resistance section, temperature detector, and humidity detector, which work together with a control section to adjust output voltage and current based on detected temperature and humidity values, ensuring suitable power supply even under changing environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the output voltage is adjusted only based on the type of recording medium, then the control system remains simple, but the image formation quality deteriorates when ambient temperature and humidity change
Solution Approach 1:
The control system transitions from a static configuration (adjusting voltage only based on recording medium type) to a dynamic configuration that continuously monitors and adjusts voltage based on real-time environmental conditions (temperature and humidity) detected by sensors, allowing the system to adapt to changing ambient conditions
Solution Approach 2:
Temperature and humidity detectors provide feedback about environmental conditions to the control section, which then adjusts the output voltage accordingly. This closed-loop feedback mechanism ensures image formation quality is maintained despite environmental variations
2Adaptability or versatility
If temperature and humidity detectors are added to the system, then the adaptability to environmental changes improves, but the device complexity increases
Solution Approach 1:
The control section is designed to perform multiple functions: it processes signals from the recording medium type input, integrates temperature detection, integrates humidity detection, and controls the output voltage adjustment. This multi-functional design adds sensing capabilities without requiring a completely separate control system
Solution Approach 2:
The temperature and humidity detectors act as intermediaries between the environmental conditions and the control section, converting physical environmental parameters into electrical signals that the control system can process and act upon
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 effectively supplies output voltage and current suitable for ambient temperature and humidity changes, improving image formation quality by maintaining optimal power delivery across varying conditions.
Implementation Method 1
a current detector configured to detect the output current, and to create and output a detected-current voltage value
Implementation Method 2
a conversion section configured to obtain a converted-current value by dividing the detected-current voltage value by a predetermined resistance value
Implementation Method 3
a voltage detector configured to convert a sum of a detected-voltage current value of the output voltage and the converted-current value into a voltage
Data Source
AI summary
A high voltage power supply system includes: a high voltage power supply; a current detector; a voltage detector; a conversion section configured to obtain a converted-current value by dividing a detected-current voltage value by a predetermined resistance value; a selector configured to select one of the detected-current voltage value and the detected-voltage voltage value; a resistance variable section configured to change the predetermined resistance value; a temperature detector; a humidity detector; and a control section configured to create a voltage setting signal, a selection signal, and a resistance variable signal on the basis of the detected-voltage voltage value, the detected-temperature value, and the detected-humidity value, and to apply the voltage setting signal to the high voltage power supply, the selection signal to the selector, and the resistance variable signal to the resistance variable section.