Imaging System Polishing Roller Torque Control
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Solution Overview
Problem
In image forming apparatuses, the accumulation of discharge products on the image carrier surface leads to increased rotational torque and humidity-dependent image flow, causing image blurring due to insufficient removal of these products, especially when a protection layer is present.
Innovation Solution
An image carrier polishing system that includes a polishing roller with adjustable rotation speed, pressure, and abrasive supply, controlled by a system that detects torque and humidity to enhance polishing force in response to increasing torque and humidity levels, effectively removing discharge products and preventing image flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the image carrier is continuously used for imaging, then productivity is maintained, but discharge products accumulate on the surface leading to increased rotational torque and image flow
Solution Approach 1:
The polishing roller is positioned to contact the image carrier surface before significant discharge product accumulation occurs, performing preliminary polishing during the imaging process to prevent harmful buildup rather than waiting for maintenance intervals
Solution Approach 2:
The polishing roller operates continuously or periodically during the imaging process, maintaining continuous removal of discharge products from the image carrier surface, ensuring consistent image quality without interrupting productivity
2Manufacturing precision
If polishing force is increased to remove discharge products, then surface cleanliness is improved, but rotational torque increases further due to friction
Solution Approach 1:
The system dynamically adjusts polishing parameters including rotation speed of the polishing roller, contact pressure, and abrasive supply rate based on detected image carrier rotation speed and torque conditions, optimizing the balance between discharge product removal and torque generation
Solution Approach 2:
The polishing roller's rotation speed is made variable and is adjusted in real-time based on the image carrier's rotation speed and torque conditions, allowing the polishing force to adapt dynamically rather than remaining constant
3Strength
If a protection layer is applied to the image carrier, then durability is improved, but discharge products accumulate more readily on the protection layer surface
Solution Approach 1:
The polishing roller applies localized mechanical action and abrasive materials specifically to the discharge product-affected regions of the protection layer, selectively removing accumulated products while preserving the overall integrity and durability of the protection layer
Solution Approach 2:
The system replaces chemical cleaning methods with a mechanical polishing approach using the polishing roller and abrasive supply, effectively removing discharge products from the protection layer through controlled mechanical action
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 prevents image flow by dynamically adjusting the polishing force based on detected characteristics, ensuring consistent image quality by maintaining the surface cleanliness of the image carrier.
Implementation Method 1
an image carrier polishing system that includes a polishing roller with adjustable rotation speed, pressure, and abrasive supply
Data Source
AI summary
An imaging system includes an image carrier, a charging device to form a toner image by charging a surface of the image carrier, a polishing roller, and a control device. A discharge product is generated on the surface of the image carrier as a result of charging the image carrier, and the polishing roller polishes the discharge product generated on the surface of the image carrier. The control device controls a polishing operation of the polishing roller in response to one or more detected characteristics.