Image Forming System Insertion Paper Size Adjustment
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Solution Overview
Problem
Conventional image forming systems face challenges in appropriately inserting insertion paper between paper sheets of varying sizes on a paper discharge tray, leading to potential dropping due to self-weight, as the size of the insertion paper is often larger than the paper sheets, causing instability.
Innovation Solution
An image forming system that includes a hardware processor controlling an image former, post-processor, and paper sheet stacker, which determines if the insertion paper is larger than the uppermost paper sheet by a predetermined size and adjusts its size through folding or cutting to ensure proper insertion, using a folding or cutting processor to change the insertion paper's shape and size before outputting it to the stacker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the largest paper sheet is used as insertion paper to ensure ease of handling, then the insertion paper can be easily handled, but the insertion paper extends beyond the paper sheet on the paper discharge tray and drops due to self-weight
Solution Approach 1:
The system dynamically adjusts the size of the insertion paper based on the size of the paper sheet being processed. The post-processing device folds or cuts the insertion paper to match the dimensions of the paper sheet, ensuring stability while maintaining ease of handling throughout the processing sequence
Solution Approach 2:
The physical dimensions of the insertion paper are changed through folding or cutting operations. The hardware processor controls the post-processing device to modify the size parameter of the insertion paper from its original largest paper sheet dimension to a reduced size that matches the current job's paper sheet size
2Reliability
If the insertion paper size is reduced to match the paper sheet size, then the insertion paper stability is improved, but the ease of handling is reduced
Solution Approach 1:
The insertion paper is processed (folded or cut) to the appropriate size before being placed on the paper discharge tray. This preliminary size adjustment ensures that the insertion paper will be stable during stacking while still being easy to handle during the insertion process
3Adaptability or versatility
If various sizes of insertion paper are prepared to match different paper sheet sizes, then the insertion paper can be appropriately sized for each job, but the device complexity increases
Solution Approach 1:
A single size of insertion paper (the largest paper sheet size) is used for all jobs, and the post-processing device folds or cuts it to match the required job size. This universal approach eliminates the need to manage multiple insertion paper sizes while maintaining adaptability to different paper sheet dimensions
Solution Approach 2:
Instead of preparing multiple insertion paper sizes, the system uses one standard insertion paper size and changes its dimensions through folding or cutting operations. This parameter transformation approach maintains versatility while reducing device complexity
Data Source
AI summary
An image forming system includes: an image former that forms an image on a paper sheet; a post-processor that executes post-processing on the paper sheet; a paper sheet stacker that stacks the paper sheet output from the post-processor on a paper discharge tray; and a hardware processor that controls the image former, the post-processor, and the paper sheet stacker, wherein in a case where insertion paper is output to the paper sheet stacker and is placed on an uppermost paper sheet on the paper discharge tray, when it is determined that a size of the insertion paper is larger than a size of the uppermost paper sheet by a predetermined size determination value or more, the hardware processor executes insertion paper processing control for changing an outer shape of the insertion paper to change the size of the insertion paper and outputting the insertion paper to the paper sheet stacker.