LVS-7500 External System Operations Manual
LVS-7500 External System Operations Manual Page 5 of 129
Introduction
The LVS-7500 External System offers 100% print quality inspection and barcode verification for Thermal and
Thermal Transfer Printers. Features include:
• Barcode Validation (Reading of 1D and 2D codes)
• Barcode Verification (Grading of 1D and 2D codes to ISO/IEC Standards)
• Master-to-Label Comparison (Blemish Detection)
• Optical Character Recognition (OCR)
• Optical Character Verification (OCV)
• Number Validation
• Data and Code Matching
The LVS-7500 External System is a modular system, which means that you can check the print quality for any of
the aforementioned areas, or for all of the areas. The features are listed below.
IMPORTANT:
The maximum system speed is 12 inches per second.
The LVS-7500 External System uses a monochrome camera to capture images, which makes
images appear in black and white. Some images in this guide were captured with a color
camera, so you will notice some images with color.
Barcode Validation
The LVS-7500 External System decodes 1D (linear) and 2D (two-dimensional) codes (including ECC-200 Data
Matrix, Composite, QR Code, PDF-417 and Micro PDF) and determines if the code is “readable.” No attempt is
made to grade the codes according to any standard.
Barcode Verification
The LVS-7500 External System verifies (decodes and grades) 1D (linear) and 2D (two-dimensional) codes
including ECC-200 Data Matrix, Composite, QR Code, PDF-417 and Micro PDF symbologies according to the
internationally accepted rules of the applicable symbology specifications and ISO 15415 and 15416.
The LVS-7500 External System displays a “real-time” graph indicating the overall ISO grade, which allows the
operator to see trends in print quality for several hundred labels that were just inspected. When an error is
detected, the “real-time” graph changes color. The system can also be programmed to “stop the press” when an
error occurs (the appropriate hardware must be purchased for this feature).
Master-to-Label Comparison (Blemish Detection)
The Master-to-Label Comparison module, also referred to as blemish detection, identifies and tracks potential
print errors such as die cut errors, broken letters, skews, smears, spots, voids, wrinkles, missing copy, and other
print quality defects. The Master-to-Label Comparison module also includes an “ignore area” function which
accounts for variable image data within a pattern-matching zone and does not report them as blemishes. All
inspection is completed at thermal printer speed. Minimum point size is based on your system’s resolution.
Note: The LVS-7500 External System uses red light (660 nm) to detect blemishes; thus, color
blemishes in the red spectrum may not be properly detected.
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