Reprinting Individualized Copies via Distance-Time Tracking
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Solution Overview
Problem
Existing methods fail to efficiently reprint individualized printed copies that have been removed or lost from a set, especially when the coding is concealed on a side hidden from detection devices, leading to incomplete print jobs.
Innovation Solution
A method that identifies and reprints individualized printed copies by using a control unit and identification device to track the removed copies based on distance and time from the printing unit, allowing for targeted reprints even when coding is not detectable by optical systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical detection devices are used to detect faulty print images, then detection capability is improved, but detection of concealed coding on hidden sides fails
Solution Approach 1:
The patent introduces an intermediary marking system that acts as a mediator between the concealed coding and the optical detection device. The marking device applies visible markers to the printing material at positions corresponding to individualized copies, enabling indirect detection of concealed coding without requiring direct optical access to the hidden sides of finished products.
Solution Approach 2:
The patent creates a copy of the detection function by marking the printing material with visible indicators that replicate the information about individualized copies. This copying approach allows the system to detect concealed coding indirectly through the markers left on the printing material before final product completion.
2Reliability
If individualized printed copies are removed or lost from a set, then print job completeness deteriorates, but manual tracking and reprints become inefficient
Solution Approach 1:
The patent implements a feedback mechanism where the marking device continuously marks individualized copies as they pass through the printing system. This creates a real-time record of all individualized copies, enabling automatic detection of missing copies and triggering targeted reprints without manual tracking, thus maintaining completeness while improving reprint efficiency.
Solution Approach 2:
The patent applies preliminary marking of individualized copies during the printing process itself, before removal or loss can occur. By pre-marking all individualized copies with identifiable indicators, the system prepares detection data in advance, enabling rapid identification and reprinting of missing copies without delaying the overall print job.
3Reliability
If coding is placed on hidden sides of printed products, then security and anti-counterfeiting are improved, but automated detection and tracking become difficult
Solution Approach 1:
The patent segments the detection function into two separate systems: one for security coding on hidden sides and another for detection through visible markers on the printing material. This segmentation allows the coding to remain concealed for security purposes while the marking system provides separate detection capability, resolving the conflict between security and detectability.
Data Source
Figure 1
AI summary
The invention relates to a method for reprinting at least one individualised print copy, wherein the at least one individualised print copy to be reprinted belongs to a set of print copies to be printed in a certain print job, wherein the set of printed print copies belonging to the certain print job is inspected for completeness by an inspecting device (11) along a route (s) to be travelled by said print copies, wherein the at least one print copy to be reprinted is removed from the set of print copies printed in the certain print job as the at least one print copy to be reprinted travels along the route (s), wherein the removed individualised print copy in question is identified by an identifying device, wherein the at least one identified print copy in question is reprinted by the printing unit (03) which individualises at least one print copy, in addition to the set of print copies printed in the certain print job, on the basis of a signal sent to said printing unit by the identifying device.