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Read and verify serial numbers, batch numbers, expiry dates, MRP, manufacturing codes, model codes, and printed characters — confirming the right text is printed, legible, and correct on every unit.
A smudged batch number, a missing expiry date, or a wrong MRP is easy to miss by eye and expensive in recalls, rework, and compliance penalties. Manual checks sample a handful of units; at line speed, the rest go unchecked.
Vision-based OCR reads printed text inline and compares it against the expected value from your PLC, ERP, or a master record, logging the result against each unit. Modern deep-learning OCR copes with curved surfaces, low contrast, and dot-matrix text that older tools struggle with.
Each marking method calls for a slightly different imaging and reading approach.
Read unique IDs and confirm they are legible, sequential, and not duplicated.
Verify batch codes match the order data and are fully printed.
Confirm dates are present, correctly formatted, and not truncated.
Check price and MRP lines against the approved artwork or data.
Validate model, variant, and part numbers on nameplates and housings.
Read stamped, laser-etched, or dot-peened characters on metal and plastic.
A quick sense of what typically drives the setup — the exact tools are always tuned during commissioning.
Diffused or ring lighting with learned-font OCR to join broken dots into whole characters.
Dark-field or low-angle lighting to separate shallow marks from the surface texture.
Low-angle bar or dome lighting that casts shadows to bring raised and cut characters out.
Dome lighting with polarizers to remove glare from bottles, foil, and film.
Contrast enhancement, filters, and deep-learning OCR to pull text out of cluttered or low-contrast surfaces.
A pharma packer relied on operator spot checks for lot and expiry prints. A smart camera after the coder now reads and matches both against the order, rejecting any carton that fails.
Cartons verified
Read time
Mismatches shipped
Serial traceability broke whenever laser marks faded or were skipped. Dark-field imaging and deep-learning OCR now read every serial and write it to the traceability database.
First-pass reads
Fewer traceability gaps
Cycle time
Wrong or blurred MRP and date prints caused relabeling batches. A camera and light station after the printer now verifies every pack and triggers an alarm on the first bad print.
Packs checked
Less relabeling
Per pack
Tell us what needs to be read, what it is printed on, and what it should match. Our application engineers will recommend the camera, lighting, and lens combination to do it on every unit.