Co-axial Split Drive Roller for Dual-Sided Printing
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Solution Overview
Problem
Current print devices that print on both sides of media require separate and costly rollers for front and back side printing, leading to increased manufacturing costs and limited control over rotational speeds across the print media.
Innovation Solution
The implementation of a co-axial split drive roller system, where two independently driven rollers are coupled at the center, allowing each end to rotate at different speeds and minimizing hardware and space usage, enabling simultaneous side-by-side printing with reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate rollers are used for front and back side printing, then printing on both sides is enabled, but manufacturing costs increase and hardware complexity increases
Solution Approach 1:
The patent combines two separate drive rollers into a single integrated roller structure with two independently driven ends. This merging reduces the total number of rollers needed while maintaining the capability to print on both sides of media, directly addressing the contradiction between versatility and hardware complexity
Solution Approach 2:
The integrated roller is segmented into two independently controllable ends, each capable of being driven at different rotational speeds. This segmentation allows independent control for front and back side printing while using a single unified hardware component, resolving the contradiction between adaptability and device complexity
2Adaptability or versatility
If separate rollers are used for front and back side printing, then printing on both sides is enabled, but manufacturing costs increase
Solution Approach 1:
By merging two separate roller assemblies into one integrated structure, the patent reduces the total component count, simplifies manufacturing processes, and lowers material costs while preserving dual-side printing functionality
Solution Approach 2:
The single integrated roller serves multiple functions - it can drive media for front side printing, back side printing, or both simultaneously at different speeds. This multi-functionality eliminates the need for separate specialized rollers, reducing manufacturing costs
3Device complexity
If a single roller is used for both sides, then hardware requirements are reduced, but independent speed control is lost
Solution Approach 1:
The roller is segmented into two independently controllable ends, each with its own drive mechanism. This allows independent rotational speed control for each end while maintaining a single unified roller structure, resolving the contradiction between hardware simplicity and speed control flexibility
Solution Approach 2:
The system dynamically adjusts the rotational speeds of the two roller ends independently based on printing requirements. This dynamic control capability is built into the single roller structure, allowing adaptability without increasing hardware complexity
Data Source
AI summary
In example implementations, a printer module is provided. The printer module includes a co-axial split drive roller, a first motor, a second motor, and a print bar. The co-axial split drive roller includes a first roller and a second roller that are movably coupled at a center of the co-axial split drive roller. The first motor is coupled to the first roller. The second motor is coupled to the second roller. The print bar is coupled to the housing over the co-axial split drive roller.