Recording Medium Transport Path for Compact Sheet Reversal
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Solution Overview
Problem
Existing image forming apparatuses face challenges in reducing the size of the device when accommodating a space for reversing the front and back sides of recording media, as dedicated spaces for reversal often increase the overall dimensions.
Innovation Solution
A recording medium transport device with a medium accommodation section, a merging path, and a processor that reverses the transport direction of the recording medium to facilitate front and back side reversal without requiring additional dedicated space, by using a merging path that merges with the medium path and allows for upstream reversal of the recording medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dedicated space for reversing the front and back sides of recording medium is provided, then the reversal function can be achieved, but the device size increases
Solution Approach 1:
The patent merges the reversal function with the existing medium path by introducing a merging path that combines with the medium path. The processor controls the transport mechanism to reverse the recording medium by utilizing the merged path structure, eliminating the need for a separate dedicated reversal space. This combining of functions reduces overall device volume while maintaining the reversal capability.
Solution Approach 2:
The medium path is designed to serve multiple functions: it transports the recording medium from the accommodation section and also serves as the reversal path when merged with the merging path. The processor intelligently controls the transport direction to achieve reversal without requiring a dedicated reversal mechanism, making the existing path structure multi-functional and reducing device size.
2Device complexity
If both the transport destination and the space for reversing the front and back sides of the recording medium are provided in one region, then the device structure is simplified, but the path length increases
Solution Approach 1:
The patent segments the path into distinct functional sections: the medium path for normal transport and the merging path for reversal operations. The processor controls which path is active based on operational requirements. This segmentation allows the system to maintain a compact structure while optimizing path length by using only the necessary portion of the path for each specific operation.
Solution Approach 2:
The system dynamically switches between using the medium path for normal transport and the merged path for reversal operations, controlled by the processor. This dynamic control allows the device to adapt the active path configuration based on operational needs, maintaining structural simplicity while minimizing path length for each specific function.
Data Source
AI summary
A recording medium transport device includes a medium accommodation section that accommodates a recording medium, a medium path that is a path through which the recording medium fed out from the medium accommodation section passes, a merging path that merges with the medium path and that is a path through which the recording medium fed out from another accommodation section different from the medium accommodation section passes in a case of heading for the medium path, and a processor configured to transport the recording medium fed out from the medium accommodation section to an upstream side in the merging path through the merging path, reverse a transport direction of the recording medium, and transport the recording medium to the medium path.