Adjustable Photoreceptor Stripper Fingers for Ultra-Light Media
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current photoreceptor stripper fingers fail to reliably strip ultra-light weight media, leading to jams and media damage due to lack of stiffness and sensitivity to dog ears and jams at various subsystems.
Innovation Solution
A specified stripper finger configuration with dual fingers positioned on the inboard and outboard edges and a lower profiled, adjustable low-tip design that changes the height and angle of the stripper fingers relative to the photoreceptor media strip roll to prevent slipping and bending, ensuring reliable stripping of ultra-light weight media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard stripper fingers are used, then the structure is simple and easy to manufacture, but ultra-light weight media cannot be reliably stripped resulting in jams and media damage
Solution Approach 1:
The stripper finger assembly is divided into multiple individual stripper fingers (e.g., three fingers) spaced apart from each other. Each finger independently contacts and supports the media, providing distributed support points that prevent bending and jams while maintaining structural simplicity
Solution Approach 2:
The stripper fingers are positioned at a specific height above the photoreceptor drum surface, creating a vertical dimension for media support. This elevated positioning allows ultra-light weight media to be supported before contact with the drum, preventing bending and damage while maintaining a simple horizontal finger structure
2Reliability
If stripper fingers are positioned closer to the photoreceptor, then the profile is lower and simpler, but ultra-light weight media slips and bends causing dog ears and jams
Solution Approach 1:
The stripper fingers are positioned to contact and support the media before it reaches the photoreceptor drum surface. This preliminary support action prevents ultra-light weight media from bending or forming dog ears during the stripping process, addressing the problem in advance
3Reliability
If additional support fingers are added for ultra-light weight media, then media damage is reduced, but the device complexity increases
Solution Approach 1:
Additional stripper fingers are strategically positioned at specific locations where ultra-light weight media is most vulnerable to bending and damage. This localized support approach provides targeted protection without adding unnecessary complexity across the entire stripper assembly
Data Source
AI summary
An apparatus for stripping light weight and ultra-light weight media from a photoreceptor that is tacked thereto by electrostatic or vacuum force includes a set of low-tip stripper fingers configured to strip the light weight and ultra-light weight media from the photoreceptor. The low-tip stripper fingers are adjustable both in the cross process and in attack angle with respect to the photoreceptor in order to change the height at which the tip of each stripper finger is in relation to the photoreceptor and thereby prevent jams due to miss-strips. Additionally, dual stripper fingers are disclosed that support inboard and outboard edges of larger media in order to reduce dog ears and jams.