Sheet Processing Using Preliminary Position-Based Barcode Reading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sheet processing technologies require slowing down sheet conveyance to read barcodes on leading edges, increasing processing time and efficiency loss.
Innovation Solution
A method and apparatus that reads processing information from a predetermined area on the sheet spaced apart from the trailing edge, using a first reader disposed in the placement part, allowing for quick and accurate processing without decelerating conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the barcode on the leading edge of the sheet is read by a camera halfway through the conveyance path, then the sheet conveyance needs to be slowed down to properly read the barcode information, but this increases the time required for processing the sheet
Solution Approach 1:
The patent applies preliminary action by reading the barcode information at the very beginning of the conveyance path (in the placement part) before the sheet enters the processing part. The first reader is positioned to read the barcode when the leading edge of the sheet is at a predetermined position, allowing the processing part to be prepared in advance without waiting for mid-conveyance reading. This eliminates the need to slow down conveyance for reading purposes.
Solution Approach 2:
The patent segments the reading function from the processing function by placing the first reader in the placement part rather than in the processing part. This separation allows the reading operation to occur independently at the start of conveyance, while the processing operation can proceed separately without being synchronized to the reading timing, thus avoiding conveyance speed restrictions.
2Measurement precision
If sheets are conveyed overlapping and the barcode is read halfway through conveyance, then reading accuracy may be compromised due to sheet position variability, but maintaining precise reading requires slowing down conveyance
Solution Approach 1:
The patent performs the reading action preliminarily at the placement part before sheets enter the processing part. By reading the barcode when the leading edge is at a predetermined position in the placement part, the system establishes a consistent reference point that is not affected by subsequent conveyance variations or overlapping conditions. This preliminary reading ensures accuracy while allowing high-speed conveyance to continue uninterrupted.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method for processing a sheet at a predetermined position on the sheet in a processing part (19), includes: placing a plurality of the sheets in a placement part (33); reading, by a first reader (71) disposed in the placement part, information (J) printed in a predetermined area on the sheet spaced apart from a trailing edge (Eb) of the sheet by at least a first length (L1), the first length being the length in a plan view from a disposed position of a detector (91) to a disposed position of a contact member (37) with which leading edges (Ef) of the sheets placed in the placement part come into contact, the detector detecting the sheet on a conveyance path (5) for the sheet extending from the placement part to the processing part; and processing the sheet based on the information read by the first reader.