Distributed Rollers for Variable Print Media
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing print medium feed systems struggle to efficiently handle print media of variable widths and thicknesses, often causing bending or warping due to insufficient rigidity, and require complex and costly mechanisms for accurate feeding.
Innovation Solution
A system utilizing multiple rollers arranged in a distributed manner along the width direction, with each roller being movable and adjustable to accommodate different media sizes, featuring a support member and rollers with adjustable torque to ensure proper traction and normal force, allowing for flexible handling of print media up to 104 mm in width and 200 mm in thickness without additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple rollers are used to handle variable width media, then adaptability improves, but device complexity increases
Solution Approach 1:
The feed rollers are made individually movable in the engage direction, allowing dynamic adjustment of each roller's position and engagement level with the media. This enables the system to adapt to different media widths and thicknesses without requiring complex mechanical reconfiguration, as each roller can independently adjust its engagement state.
Solution Approach 2:
The feed roller assembly is divided into multiple independently controllable rollers rather than a single unified roller. Each roller can be independently adjusted in the engage direction, allowing segmented adaptation to media of varying widths and thicknesses, thereby improving versatility without requiring an entirely complex reconfigurable system.
2Manufacturing precision
If rollers are made movable and adjustable, then handling accuracy improves, but device complexity increases
Solution Approach 1:
The rollers are designed to be individually movable and self-adjusting in the engage direction based on media characteristics. This self-service capability allows each roller to automatically adapt its position for optimal engagement without requiring external sensors or complex control systems, thereby achieving accurate feeding while minimizing device complexity.
3Reliability
If distributed roller arrangement is used, then media support improves, but use of energy increases
Solution Approach 1:
The distributed rollers are individually movable, allowing the system to dynamically engage only the necessary number of rollers based on media thickness and width. This reduces energy consumption compared to continuously engaging all rollers, while still maintaining reliable media support through selective multi-point contact.
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
Enables accurate and cost-effective feeding of print media with variable sizes and thicknesses, reducing energy consumption and space requirements while maintaining efficient operation without the need for extra hardware or sensors, enhancing the versatility and applicability of printing devices.
Implementation Method 1
Each of the (multiple) rollers (104) may be provided with an outer surface with a material having a sufficient friction coefficient against a material of the print medium (P)
Data Source
AI summary
Disclosed are a printing device, a system and a method for printing medium feed. A device may comprise a support member and multiple rollers. The support member may support a print medium. The multiple rollers may each advance the print medium from the support member in an advance direction. The multiple rollers are arranged in a distributed manner along a width direction. The multiple rollers are operable in a disengage state detached from the print medium and the support member and in an engage state of pressing against the support member such to rest on the print medium or, if the print medium does not extend therebetween, to rest on the support member. The multiple rollers in the engage state are individually movable toward the support member.