Sheet Conveying Apparatus Flap Position Detection
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Solution Overview
Problem
Conventional sheet conveying apparatuses are unstable and prone to disorderly stacking, making it difficult to detect a full-load state in storage sections, especially when dealing with abnormalities like multi-feed, skew, and jam during sheet conveyance.
Innovation Solution
A sheet conveying apparatus with a position-changing member and control system that guides sheets to a storage section, allowing reliable detection of full-load states by switching between positions to manage sheet entry and exit from the conveyance path, ensuring accurate storage and notification of full capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sheets are discharged to escape tray or purge box in conventional apparatus, then abnormal sheets are removed from conveyance path, but sheets stack disorderly and full-load state cannot be reliably detected
Solution Approach 1:
The invention divides the storage function into separate sections: a first storage section for normal sheets and a second storage section for abnormal sheets. This segmentation prevents mixing of different sheet types, ensuring stable stacking in each section while enabling reliable detection of full-load states through dedicated sensors for each section.
Solution Approach 2:
The invention introduces a guide member as an intermediary component that directs sheets to appropriate storage sections based on their status. The guide member mediates between the conveyance path and storage sections, ensuring sheets are properly routed and stacked, which resolves the stacking disorder problem while maintaining reliable detection capabilities.
2Quantity of substance
If maximum stack number is set for storage section, then overfilling is prevented, but full-load state may not be detected before reaching maximum capacity due to disorderly stacking
Solution Approach 1:
The storage sections are segmented with dedicated full-load sensors positioned to detect sheets at optimal locations. This segmentation allows each section to be monitored independently, ensuring accurate detection of full-load states before reaching maximum capacity, even when sheets are discharged in batches.
Solution Approach 2:
The full-load sensors are positioned to detect sheets before the storage section reaches its maximum stack number. This preliminary detection action allows the system to stop sheet discharge proactively, preventing overfilling and ensuring accurate full-load detection is achieved before capacity is completely exhausted.
Data Source
AI summary
The present invention is to provide a sheet conveying apparatus capable of reliably detecting a full-load state of a storage section for storing sheets discharged from a sheet conveyance path when an abnormality such as multi feed is detected, a sheet feed apparatus is provided with a multi feed sheet storage section disposed below a common conveyance path to store multi-fed sheets with multi feed detected, and a flap member rotating between a first rotation position for supporting a sheet in the common conveyance path to be able to convey to the downstream side in a conveyance direction, and a second rotation position for guiding to the multi feed sheet storage section, and determines that the multi feed sheet storage section is in a full-load state in detecting that the flap member does not return to the first rotation position.