Selection framework
| Decision | Starting point |
|---|---|
| Parcel labels | 4-inch direct thermal starting point |
| Exception labels | Clear human-readable status plus barcode |
| Peak demand | Measure labels per hour at sort and dispatch |
Validation checklist
- Test carrier barcode requirements
- Validate print contrast after handling
- Plan media changes and printer backup
Final recommendation
Request samples and test the exact printer, settings, ribbon, facestock and adhesive on the production surface. Verify barcode quality after the complete environmental cycle, not only immediately after printing.