Security Document Printing via Sheet Segmentation
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Solution Overview
Problem
The existing methods for printing security documents, such as passports, are time-consuming and space-intensive due to the need to handle and align large sheets, which are then printed on both sides before being cut into individual pages, leading to inaccuracies and inefficiencies.
Innovation Solution
A method and device that involve cutting the sheet substrate into individual panels, printing only the necessary pages, and using two printing units to print both sides of each panel individually, with precise alignment and handling to reduce space requirements and processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the complete visa sheet is fed to a printing device for printing on both sides, then both sides can be printed, but the process is time-consuming and requires large space
Solution Approach 1:
The visa sheet is divided into individual passport book pages before printing. Each page is processed separately through the printing device, allowing for reduced space requirements and faster processing compared to handling the complete sheet.
2Manufacturing precision
If the complete visa sheet is fed to a printing device, then printing can be performed, but alignment is inaccurate
Solution Approach 1:
By cutting the visa sheet into individual pages before printing, each page can be precisely aligned and positioned independently in the printing device, achieving accurate alignment without the complexity of aligning large sheets.
3Loss of time
If individual pages are printed separately, then space and time are reduced, but the process requires cutting and separating steps
Solution Approach 1:
The visa sheet is cut into individual pages before the printing process begins. This preliminary cutting action simplifies subsequent printing operations by allowing direct processing of individual pages without requiring complex in-line separation mechanisms during printing.
Data Source
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AI summary
The invention relates to a method for printing one or more printable panels (201) of a sheet-shaped substrate (200) to be processed, comprising the following steps: feeding the sheet-shaped substrate (200) to be processed to a cutting device (204); cutting the sheet-shaped substrate (200) into individual panels (201, 202); separating or separating the printable panel (201) from one or more panels (202) not to be printed; feeding the printable panel (201) to a printing device (211); printing the printable panel (201) on a first panel side (300); and joining the printed printable panel (201) with the one or more panels (202) not to be printed. It further relates to an apparatus for carrying out the method.