Barcode labels

Two barcoded entities in Rubberfit: rolls and jobs. Both use Code 128 with a UUID payload.

Roll labels

Generated automatically when a roll is created (PO receipt or manual entry). The label PDF includes:

• The Code 128 barcode (1.5 in wide × 0.5 in tall, sized for thermal printers)
• The roll’s UUID (human-readable, in case the barcode is damaged)
• Material name + durometer
• Dimensions (width × length)
• Supplier name + lot number (if available)
• Received date

Print to a Zebra ZD420 (or similar thermal label printer) at 300 dpi. The dashboard print dialog includes a “Print to default label printer” option that bypasses the standard browser print preview for speed.

Job barcodes

Generated when a job is created. Used in two places:

1. Operator scan-to-load at the cut table (/dashboard/scan resolves any barcode and routes to the correct screen)
2. Customer pickup — the customer PDF includes the job barcode for warehouse/shipping reference

Job barcodes are printed on the cut list (which also includes the operator-readable layout) when Print cut list is clicked.

The barcode payload

Both roll and job barcodes carry the entity’s UUID directly — not a short code, not a ticket number. This means:

• A scanner is the lookup key — no operator typing
• Wrong-roll cuts are physically impossible (the scanned barcode either resolves to a roll or it doesn’t)
• Lineage queries work directly off the scan event

Label printer setup

Workspace admins configure the label printer in /dashboard/admin/printers. The system supports any printer with a 4×6 in label or 1×2 in label profile. Recommended:

• Zebra ZD420 (thermal direct, ~$400, 300 dpi)
• Brother QL-820NWB (thermal direct, ~$200, 300 dpi)
• Dymo LabelWriter 4XL (thermal direct, ~$300, 300 dpi)

Higher-end laser/inkjet works but is overkill for label print volume.