FAQ

The BLC Label Printing Quality Inspection System is an online label verification solution designed to inspect every printed label in real time. It uses 1:1 distortion-free CIS imaging to check label print quality, barcode readability, barcode grade, OCR/OCV text accuracy, template consistency, duplicated or missing codes, serial number rules, and database-matched content. Instead of only helping manufacturers print labels, BLC helps them prove that each label is correct, readable, compliant, and traceable before it moves to the next production or shipping process. This makes BLC suitable for manufacturers that cannot afford label errors, rework, customer complaints, or compliance risks.

A reliable printer is essential, but printing well does not automatically prove that every label is correct. A printer outputs the label; BLC verifies the output. BLC is designed to detect wrong data, missing codes, duplicated serial numbers, misalignment, missing print, ribbon wrinkles, printhead-related defects, barcode grade issues, and OCR/OCV text problems. For high-risk industries, the real question is not only "Can we print?" but "Can we prove every label is correct?" BLC upgrades label printing from a production function into a controlled quality assurance process with real-time interception and traceable inspection evidence.

BLC can detect both print quality defects and data accuracy errors. Typical print defects include missing print, misalignment, deformation, white spots, dirt, barcode blemishes, ribbon wrinkles, printhead pin breakage, and pattern deviations. For content verification, BLC can check duplicate data, missing data, wrong data, out-of-sequence numbers, date and time rules, range rules, master data comparison, and field matching between different label areas. This allows manufacturers to identify defective or incorrect labels immediately during printing, rather than discovering problems after packing, shipment, customer receipt, or audit review.

Yes. BLC supports inspection and verification of both one-dimensional and two-dimensional barcodes. It can check barcode readability, barcode blemishes, barcode content, reference data consistency, and barcode grade. Barcode grading is performed according to ISO/IEC 15416 for 1D barcodes and ISO/IEC 15415 for 2D barcodes, with grading results provided for reference. This is especially valuable for industries where barcode quality affects scanning reliability, regulatory compliance, warehouse operations, supply chain traceability, or customer acceptance. BLC helps manufacturers move from simple barcode printing to controlled barcode verification.

Yes. BLC supports OCR and OCV inspection for variable characters such as serial numbers, batch numbers, lot numbers, dates, product codes, and other printed text. It can recognize characters, verify the recognized result against expected data, and inspect character blemishes or print defects. According to the product information, BLC supports standard English, numbers, symbols, Simplified Chinese, and Traditional Chinese, with optional support for additional languages such as Korean, Japanese, Hindi, Latin, and Russian. This makes BLC suitable for labels with variable information, serialization, batch traceability, and multi-language production requirements.

BLC helps regulated manufacturers verify that critical label information is printed correctly, readable, and traceable. For medical devices, pharmaceuticals, vaccines, and life sciences applications, labels often contain UDI, batch numbers, expiry dates, barcodes, serial numbers, and regulatory symbols. BLC can inspect every label, verify 1D/2D barcode quality, check OCR/OCV text accuracy, compare label data against expected sources, and retain inspection records and reports. This supports audit readiness and helps reduce risks caused by wrong, unreadable, missing, duplicated, or non-compliant labels. For regulated production, BLC turns label output into a verifiable quality control point.

BLC is especially valuable for industries where label errors can cause rework, shipment failure, recall risk, regulatory pressure, or customer complaints. Key application fields include medical devices, pharmaceuticals, vaccines, automotive components, tire production, electronics manufacturing, new energy, solar, warehousing and logistics, food and beverage, chemical and cosmetic manufacturing, and aerospace components. These industries often rely on variable data, serialized codes, batch information, regulatory marks, and high-density labels. When manual sampling is not enough, BLC provides 100% inspection, real-time error interception, traceable records, and a stronger quality assurance process.

With the optional RFID inspection module, BLC can verify both the visible printed content and the encoded RFID data on a label. It can detect incomplete RFID writing, incorrect or duplicated RFID data, cross-writing problems, and unlocked EPC areas. When an RFID issue is detected, BLC can halt the printing process and alert the operator, preventing defective RFID labels from moving forward. This is important for manufacturers, logistics providers, retailers, and suppliers that rely on RFID labels for inventory accuracy, traceability, security, and supply chain data integrity. BLC also supports inspection records and exportable data for quality tracking.

BLC offers different models for different label inspection requirements. According to the technical specifications, BLC B406 and B606 use 600 dpi CIS acquisition, while BLC B412 uses 1200 dpi CIS acquisition. BLC B412 supports finer inspection requirements, including 2 mil 1D barcode detection, 3 mil 2D barcode detection, and OCR/OCV support down to 2.5 pt fonts. BLC B406 and B606 support 4 mil 1D barcode detection, 7 mil 2D barcode detection, and OCR/OCV support down to 5 pt fonts. Model selection should be based on label size, barcode density, text size, printer width, inspection speed, and application complexity.