Barcode verifier lets manufacturers check codes as they are created
27 March 2026 
Omron has announced a high-speed system that verifies 1D, 2D and DPM (direct part mark) barcodes on production lines, allowing manufacturers to check code quality when it is created, and to detect and correct any printing or marking issues immediately. The VHV5 inline verifier performs real-time verification of Code 128, Data Matrix, QR Codes and DPM marks at speeds of up to 1,000 codes per minute, ensuring that every code is readable, compliant and traceable.
The VHV5 complies with ISO/IEC 15416 for 1D barcode print quality, ISO/IEC 15415 for 2D symbol grading, and ISO/IEC TR 29158 (AIM DPM) for codes marked directly on parts using laser, dot peen or inkjet processes. It delivers consistent, repeatable grading results across labels, packaging and permanently marked components.
Tilted coaxial lighting improves accuracy on reflective, curved and low-contrast surfaces by reducing glare and enhancing edge definition. It is particularly effective for DPM codes on metal parts, glossy labels and curved plastic packaging. To maintain grading accuracy in space-constrained installations or with challenging viewing angles, the VHV5 applies an unwarp transformation to correct image distortion caused by curved or angled surfaces. Flat field correction further ensures uniform illumination and pixel response across the field-of-view, preventing lighting artifacts from affecting results.
