Image Forming System Voltage Control for Print Media Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing variety of print media types in image forming devices leads to inconsistencies in the electric resistance of print media, causing variations in the applied voltage, which results in decreased image quality due to inconsistent toner transfer.
Innovation Solution
An image forming system that includes a detection unit to measure the resistance value of the print medium, a communication unit to transmit this data to a server, and a control unit to adjust the applied voltage based on statistically determined adjustment values, using an applied voltage value table that considers humidity and resistance values to maintain consistent image quality across different media types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the constant voltage method is used to transfer the toner image, then the control is simplified, but the image quality decreases due to resistance variations of different print media
Solution Approach 1:
The patent changes the voltage parameter dynamically based on the detected resistance value of the print medium. Instead of using a fixed constant voltage, the system adjusts the applied voltage according to the specific resistance characteristics of each print media type, thereby maintaining consistent image quality across different media while keeping the control methodology relatively simple.
Solution Approach 2:
The patent implements a feedback mechanism where the resistance value of the print medium is detected, and this detected value is used to determine the appropriate voltage to apply. The system continuously monitors resistance and adjusts voltage accordingly, creating a closed-loop control system that maintains image quality without requiring complex pre-programmed control tables for every possible media type.
2Manufacturing precision
If the applied voltage is adjusted for each print media type, then the image quality is maintained, but the device complexity increases due to multiple control parameters
Solution Approach 1:
The patent uses real-time resistance detection feedback to determine voltage settings, eliminating the need for complex pre-stored control tables for each media type. The system automatically senses the resistance and selects the appropriate voltage from a standardized table, simplifying the control architecture while maintaining precise image quality across diverse media types.
Solution Approach 2:
The patent changes the voltage parameter dynamically based on detected resistance values rather than requiring separate control settings for each media type. This approach reduces control complexity by using a single adaptive parameter (voltage) that responds to resistance measurements, rather than managing multiple fixed parameters for different media categories.
3Ease of operation
If the constant voltage method is used, then the ease of operation is maintained, but the productivity decreases due to transfer failures
Solution Approach 1:
The patent maintains ease of operation by automatically detecting resistance values and adjusting voltage without requiring user intervention. The system performs resistance measurement and voltage adjustment autonomously, keeping the user experience simple while dramatically improving transfer success rates by adapting to each media type's electrical characteristics.
Solution Approach 2:
The system performs self-adjustment by automatically detecting print medium resistance and selecting appropriate voltage settings without user input. The image forming device serves itself by autonomously optimizing transfer conditions for different media types, maintaining operational simplicity while eliminating transfer failures that would reduce 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
This system stabilizes the image forming process by adjusting the applied voltage according to the detected resistance and environmental conditions, thereby maintaining consistent image quality across various print media types and reducing transfer failures.
Implementation Method 1
The image forming device applies a voltage between the transfer body and the print medium in case of transferring the toner image from the transfer body to the print medium. The toner image is transferred from the transfer body to the print medium by the application of the voltage.
Implementation Method 2
The detection unit detects a value of an electric resistance of a print medium as a resistance value.
Data Source
AI summary
An image forming system includes a receiving unit that receives an adjustment value for adjusting a value of an applied voltage in case of transfer in response to an operation of a user, a detector that detects a value of an electric resistance of a print medium as a resistance value. A first control unit controls the applied voltage based on the adjustment value indicated by the second adjustment value information included in the adjustment update information received by the first communication unit. A second control unit uses the adjustment information transmitted respectively from the plurality of image forming devices and determines the adjustment values to be used in the plurality of image forming devices. A second communication unit transmits the adjustment update information including the second adjustment value information indicating the determined adjustment values respectively to the plurality of image forming devices.