Imaging System Cleaning Roller Speed Control
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Solution Overview
Problem
The existing imaging systems face challenges in effectively controlling the gloss of toner images on printing media, particularly due to the stress and speed differences affecting the lifespan and cleaning efficiency of the endless belt, which impact the quality of the printed images.
Innovation Solution
The implementation of a gloss control device with a cleaning roller that presses the endless belt inward, widening the contact area with the cleaning member, and adjusting the rotation speed to create a speed difference, thereby improving cleaning efficiency and extending the belt's lifespan while controlling image gloss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cleaning member presses the endless belt with high force to improve cleaning efficiency, then the cleaning efficiency is improved, but the stress on the endless belt increases reducing its lifespan
Solution Approach 1:
The cleaning member is designed to rotate at a different speed than the endless belt, creating a dynamic speed difference that enhances cleaning efficiency through friction and relative motion without requiring excessive pressing force. This dynamic approach allows effective cleaning while reducing stress on the belt structure.
Solution Approach 2:
The system changes the rotational speed parameter of the cleaning member relative to the endless belt. By adjusting the speed difference between the cleaning member and the belt, the patent optimizes cleaning efficiency while controlling the stress applied to the belt, thus extending its lifespan.
2Reliability
If the cleaning member rotates at the same speed as the endless belt, then the mechanical stress on the belt is reduced, but the cleaning efficiency decreases
Solution Approach 1:
The cleaning member operates with a controlled speed difference relative to the endless belt. This dynamic speed variation creates sufficient friction and relative motion for effective cleaning while maintaining manageable stress levels on the belt, resolving the contradiction between cleaning efficiency and belt durability.
Solution Approach 2:
The speed difference between the cleaning member and the endless belt creates a vibratory or oscillatory cleaning action. This mechanical vibration effect enhances the cleaning efficiency by preventing toner adhesion and facilitating easier removal, while the controlled nature of the vibration keeps stress within acceptable limits.
3Productivity
If the contact area between the cleaning member and endless belt is increased, then the cleaning efficiency is improved, but the stress distribution becomes problematic
Solution Approach 1:
The cleaning member is designed with specific local properties including surface texture and material composition that enhance cleaning efficiency through increased contact area. The surface is engineered to provide optimal friction and adhesion characteristics for toner removal while distributing stress evenly across the contact zone to prevent belt damage.
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 solution enhances the cleaning efficiency and extends the lifespan of the endless belt, leading to improved image quality by effectively managing stress and speed differences, thus ensuring consistent gloss control for high-quality prints.
Implementation Method 1
a cleaning roller that presses the endless belt inward, widening the contact area with the cleaning member
Implementation Method 2
adjusting the rotation speed to create a speed difference, thereby improving cleaning efficiency
Implementation Method 3
a heating roller which heats the endless belt
Implementation Method 4
a pressing roller which presses the endless belt against the heating roller
Implementation Method 5
a cooling structure which cools the endless belt having passed between the heating roller and the pressing roller
Data Source
AI summary
An imaging system includes: an endless belt, a tensioning member, a heating member, a pressing member, a cleaning member. The endless belt conveys a printing medium. The tensioning member tensions the endless belt. The heating member heats the endless belt. The pressing member presses the endless belt against the heating member. The cleaning member is located outside the endless belt, between the tensioning member and the heating member, and presses the endless belt inwardly.