Post-Processing Device Stapling Position Control
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Solution Overview
Problem
Conventional post-processing devices struggle to accurately determine the binding position for sheets of irregular sizes due to the inability to grasp their dimensions, leading to improper staple processing.
Innovation Solution
Incorporating a scanner to obtain image data of the sheet, a size deciding part to calculate the sheet size, and a staple controlling part to determine the binding position based on the calculated size, ensuring accurate staple processing for both regular and irregular-sized sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual input of sheet dimension is used, then the post-processing device can receive the dimension of irregular size sheets, but the user may incorrectly input the dimension leading to improper staple processing
Solution Approach 1:
The system performs self-measurement of sheet dimensions using the scanner and size deciding part, eliminating the need for manual user input. The device automatically grasps the dimension of irregular size sheets and determines the binding position without user intervention, thereby preventing incorrect input while maintaining ease of operation.
2Device complexity
If the post-processing device cannot grasp sheet dimension, then the device structure remains simple, but the device cannot determine appropriate binding position for irregular size sheets
Solution Approach 1:
The scanner, originally used for obtaining image data, is additionally utilized to measure sheet dimensions. The size deciding part processes this data to determine both regular and irregular sheet sizes. This multi-functional approach allows the device to handle various sheet sizes without adding complex dedicated measurement structures, thereby maintaining structural simplicity while improving adaptability.
3Measurement precision
If automatic sheet dimension detection is implemented, then accurate binding position determination is achieved, but the device complexity increases due to additional components
Solution Approach 1:
The dimension detection function is merged with the existing scanner system. The scanner captures image data that contains dimensional information, and the size deciding part extracts this information through image processing. This integration approach achieves accurate automatic dimension detection without adding separate complex measurement devices, thereby minimizing the increase in overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise determination of the binding position for irregular-sized sheets, ensuring appropriate staple processing without user input, thereby improving the accuracy and reliability of post-processing operations.
Implementation Method 1
The scanner obtains image data by reading the sheet conveyed on the post-processing conveying path
Data Source
AI summary
An image forming system includes an image forming apparatus and a post-processing device. The image forming apparatus includes a scanner reading image data from a sheet, an image forming part forming an image on the sheet, and a sheet ejecting part ejecting the sheet after forming the image. The post-processing device includes a post-processing conveying path, and a stapling part. The post-processing conveying path introduces the sheet from the sheet ejecting part and conveys the sheet. The stapling part collects sheets conveyed on the post-processing conveying path for each predetermined number of sheets and executes staple processing to the sheets. The image forming apparatus or the post-processing device includes a size deciding part deciding a sheet size based on the image data. The post-processing device includes a staple controlling part determining a binding position for the staple processing on the basis of the sheet size.