Post-processing Apparatus Cutting Position Accuracy Feedback
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Solution Overview
Problem
Existing post-processing systems for image forming, such as those used for cutting paper into business cards, face challenges in accurately maintaining cutting position precision due to paper type variations and the accumulation of slight differences in paper movement, leading to displaced cut positions and increased user burden, especially when creating many small pieces of paper.
Innovation Solution
A post-processing apparatus that includes a paper cutter, an integrated reader, and a hardware processor to determine the accuracy of cutting positions based on read results, allowing for real-time adjustment and correction of cutting positions, thereby ensuring precise cutting without the need for a dedicated conveying mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated conveying mechanism is provided to convey small pieces to the reading apparatus, then the reading function can be performed, but the device complexity and cost increase significantly
Solution Approach 1:
The existing paper conveying mechanism is made multi-functional by enabling it to handle both full-size papers and small cut pieces through a single unified structure. The conveying mechanism uses the same rollers and guidance systems to transport various paper sizes, eliminating the need for dedicated small-piece conveying infrastructure while maintaining reliable reading function availability.
2Reliability
If manual placement of small pieces is performed by the user, then the reading function can be performed, but the ease of operation deteriorates significantly
Solution Approach 1:
The system performs self-service by automatically conveying and positioning small cut pieces through its integrated conveying mechanism. The apparatus autonomously handles the entire process from receiving small pieces to positioning them for reading, eliminating the need for manual user intervention and significantly improving ease of operation while maintaining reading function availability.
3Productivity
If cutting is performed multiple times with repeated conveying and stopping, then the paper can be cut into multiple pieces, but the manufacturing precision deteriorates due to accumulated displacement
Solution Approach 1:
The system implements feedback by using the reader to detect the actual position of cut pieces and comparing it with the target position. Based on this feedback information, the control system automatically adjusts the conveying parameters and cutting positions for subsequent operations, correcting accumulated displacements and maintaining high manufacturing precision while enabling multiple cutting operations for improved productivity.
Solution Approach 2:
The system performs preliminary action by reading the position information of cut pieces before the next cutting operation begins. This preliminary detection allows the control system to pre-calculate and adjust the conveying parameters to compensate for any accumulated displacement, ensuring that subsequent cutting operations maintain high precision while enabling repeated cutting for improved productivity.
Data Source
AI summary
A post-processing apparatus that performs post-processing on paper in which an image is formed, the apparatus including: a paper cutter that cuts the paper in which the image is formed; a reader that reads the paper cut by the paper cutter; and a hardware processor that determines whether a cutting position of the paper cut by the paper cutter is good or not based on a read result read by the reader, wherein the hardware processor determines whether the cutting position of the paper in which partial cutting is performed is good or not, the partial cutting being cutting a portion of the paper by the paper cutter.