Detachable Medium Guide Unit Roller Synchronization
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Solution Overview
Problem
Conventional printers have low operability for inserting and removing the medium guide unit, which hampers efficient maintenance and operation during duplex printing.
Innovation Solution
A medium carrying device with a detachable medium guide unit, incorporating a carrying roller and a driven roller that rotates in synchronization to enhance the operability for insertion and removal of the guide unit, improving the handling of print media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the medium guide unit is made detachable to improve maintenance and operation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The medium guide unit is divided into separable components including the guide unit body, carrying roller, and driven roller assembly. This segmentation allows the guide unit to be detached from the apparatus body for easy maintenance and operation, while each component maintains its specific function. The guide unit can be removed as a module without disassembling the entire device.
Solution Approach 2:
A driven roller is introduced as an intermediary component between the carrying roller and the medium guide unit. The driven roller rotates in synchronization with the carrying roller through frictional contact, serving as a mediator that transfers rotational motion. This intermediary structure enables smooth medium handling while maintaining the detachable design, as the driven roller can be easily attached and removed with the guide unit.
2Reliability
If the driven roller rotates in synchronization with the carrying roller to improve media handling, then reliability is improved, but device complexity increases
Solution Approach 1:
The driven roller is designed to rotate automatically in synchronization with the carrying roller through frictional contact, without requiring an independent drive mechanism. The rotation of the carrying roller directly drives the driven roller, which in turn drives the medium guide unit. This self-service mechanism ensures reliable media handling while minimizing the complexity of the roller mechanism.
Solution Approach 2:
The carrying roller and driven roller are designed with similar structural characteristics and rotational properties, creating a homogeneous roller system. Both rollers have comparable dimensions, surface properties, and rotational speeds, which ensures smooth and consistent medium handling. This homogeneity simplifies the overall roller mechanism design while maintaining reliability.
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 solution enhances the operability of the medium guide unit, facilitating easier maintenance and operation, particularly during duplex printing by ensuring smooth media handling and reducing jam issues.
Implementation Method 1
a driven roller that is disposed in the medium guide unit at a position corresponding to the carrying roller in a contacting manner so that the driven roller rotates in accordance with a rotation of the carrying roller
Data Source
AI summary
A medium carrying device includes an apparatus body, medium guide unit that is detachable with respect to the apparatus body, a carrying roller that is disposed in the apparatus body, and is configured to rotate to carry a print medium passing through the medium guide unit, and a driven roller that is disposed in the medium guide unit at a position corresponding to the carrying roller in a contacting manner so that the driven roller rotates in accordance with a rotation of the carrying roller.