by Melissa Donovan
Print/marketing service providers are tasked on a daily basis with meeting tight turnarounds. Unfortunately, the shorter the timeline, the larger the margin for error. Implementing vision and inspection systems along both printing and finishing lines minimizes the risk of making a mistake.
Today’s solutions inspect at top production speeds, allowing the process to keep moving and get the print job done by the deadline. Features include checking for print quality, color consistency, barcode integrity, registration accuracy, and more.
We recently spoke with John Cusack, product line leader, inspection, color and registration, BW Converting about vision and inspection systems designed for print.
BW Converting offers advanced 100% inspection, color management, and registration systems. From its Baldwin segment, the Guardian PQV 100% Print Inspection system features complete inspection of every printed piece, ensuring that even the smallest defects are detected and addressed before they reach the final product. This system scans each printed item for issues such as color variations, registration errors, and surface defects, making it ideal for industries that require high-quality control, such as packaging, pharmaceuticals, and security printing.
Guardian PQV’s real-time feedback allows operators to quickly adjust settings and resolve issues, reducing waste and improving overall production efficiency. The system is easy to integrate into existing production lines, offering seamless operation and reliable performance. With its energy-efficient design and comprehensive inspection capabilities, the Guardian PQV ensures that printed products consistently meet the highest quality standards.
DPS: How are today’s vision and inspection systems equipped to use optical character recognition (OCR) and barcode reading to verify information at high speed without creating a bottleneck?
Cusack: Today’s vision and inspection systems are designed to verify printed information inline, at top production speeds, rather than treating inspection as a separate manual step. In label and printed packaging environments, that means combining high-speed imaging with automated OCR/OCV, 1D and 2D barcode decoding, and variable data verification against external reference files.
Equally important, modern systems are much easier to set up and manage than in the past. Wizard-driven workflows, automated barcode training, and reusable job parameters reduce operator intervention and allow converters to verify critical information in real time without slowing throughput. The goal is to make data verification part of the normal production process, not a bottleneck afterward.
DPS: How important is certified delivery/documented proof to print/marketing service providers/brands today?
Cusack: Documented proof that a printed product meets specification is increasingly important in today’s packaging environment. Brand owners and printed packaging buyers expect verifiable evidence of print quality, barcode integrity, color consistency, registration accuracy, and defect-free output, especially in applications tied to retail compliance, traceability, or regulated markets.
That level of accountability matters because converters are under pressure to do more with less waste, less labor, and tighter tolerances. Inspection systems help support that by creating a record of what was produced, what was detected, and what was accepted or removed, giving printed packaging converters and their customers much more confidence in the final output.
DPS: How do today’s vision systems ensure accuracy and reduce false positives?
Cusack: The best systems reduce false positives by combining higher image quality with better defect classification and more intelligent setup tools. Instead of relying on overly broad sensitivity settings, modern inspection platforms can distinguish between critical defects, acceptable variation, and repeatable print characteristics that should not trigger unnecessary alarms.
This is important because too many false positives can be just as disruptive as missed defects. They slow operators down, create alarm fatigue, and make it harder to focus on real print issues. Today’s systems improve accuracy by using smarter tolerance management, better image processing, and more refined classification logic so that operators can concentrate on the defects that truly affect product quality.
DPS: How do these systems communicate between the vision system and the downstream finishing equipment (folders/inserters) to ensure a defective piece is physically removed from the mail stream?
Cusack: In printed packaging, the downstream equivalent is typically the slitter-rewinder or other finishing equipment handling the printed material before shipment. Modern inspection systems communicate defect location data to those downstream processes so specific defective sections can be identified, stopped at, segregated, or removed without scrapping good material around them.
This is where defect management becomes especially valuable. Rather than simply flagging a problem visually, the system creates actionable defect maps and connects that information to downstream equipment so operators can remove only the affected portion of the job. That improves finishing efficiency, reduces waste, and helps ensure that only conforming product moves forward in the workflow.
DPS: With regulations like GDPR and HIPAA, how do vision systems handle sensitive Personally Identifiable Information without storing images that could lead to a data breach?
Cusack: For applications involving variable data or sensitive printed information, vision systems are increasingly designed to verify content securely and selectively. In many cases, the system’s role is to confirm that printed data matches an approved reference or expected file structure in real time, rather than storing unnecessary image data indefinitely.
In regulated print environments, data integrity, access control, and auditability are all critical. The most effective approach is to verify what is necessary for quality and compliance, while minimizing retention of sensitive information beyond what the application requires. That allows converters to maintain traceability and accountability without creating unnecessary exposure to data-security risk.
Jun2026, DPS Magazine
