Movable Scanning Module for Faster Duplex Sheet Scanning
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Solution Overview
Problem
Existing scanning devices require sheets to be input and output multiple times for dual-side scanning, making the process time-consuming.
Innovation Solution
A scanning device with a movable scanning module that moves between two positions to simplify the feeding path, allowing dual-side scanning with fewer inputs and outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional automatic document feeder is used for dual-side scanning, then both sides of the sheet can be scanned, but the sheet must be input and output multiple times making the process time-consuming
Solution Approach 1:
The scanning module is made movable between a first position for scanning the front side and a second position for scanning the back side of the sheet. This dynamic repositioning eliminates the need to output and re-input the sheet for dual-side scanning, significantly reducing time loss and improving scanning productivity
Solution Approach 2:
The scanning module serves multiple functions by being repositionable: it scans both the front side and back side of sheets during dual-side scanning operations, and can also handle single-side scanning when positioned at the first position. This multi-functionality eliminates redundant input-output operations
2Reliability
If the sheet is input three times for dual-side scanning to maintain sequence, then scanning completeness is ensured, but the complexity of the feeding path increases
Solution Approach 1:
The movable scanning module dynamically repositions between first and second positions to scan both sides of the sheet in sequence without requiring the sheet to be input and output multiple times through a complex feeding path, maintaining scanning completeness while simplifying the feeding path
Solution Approach 2:
The scanning function is extracted from a fixed position and made movable, allowing the scanning module to be repositioned to scan both sides of the sheet. This extraction eliminates the need for complex feeding paths with multiple input-output operations while ensuring complete scanning of both sides
Data Source
AI summary
This disclosure is directed to a scanning device having a which has a tray set, a movable scanning module and an automatic document feeder. The tray set has a feeding tray and a first output tray. The movable scanning module is movable between a first position and a second position. The automatic document feeder has a flip path, a feeding path, an output path, a returnable path and a feeding wheel group. The feeding path is disposed corresponding to the first position and connecting with the feeding tray and the flip path. The output path is disposed corresponding to the second position and connecting with the first output tray. The returnable path has an intersection connecting with the flip path and the output path. The movable scanning module scans two sides of the sheet at the first position and the second position respectively.