Japan Post 4 State Customer Code for mail-merge addressing
Mail-merge and print shops producing Japanese mail pieces use this generator to render each piece's postal barcode alongside the printed address.
Same generator, no special configuration
This experience uses the same Japan Post 4 State Customer Code capability as the primary generator, with no separate options applied for this use case yet.
Example data
The generator is seeded with a bwip-js-verified valid value, distinct from the primary's example, that you can replace with your own postal-code-and-serial data.
Workflow
Enter your postal-code-and-serial data, confirm the computed checksum is accepted, then export SVG for the mail piece.
Job-specific settings
No job-specific options are applied here.
Scanning notes
Keep clear white space above and below the bar pattern; the four bar heights carry meaningful data and must remain distinguishable from one another.
Common mistakes
A character outside the allowed set (digits, capital letters, and dashes only) is the most common rejection.
Standard
Japan Post 4 State Customer Code is documented in the bwip-js/BWIPP symbology reference.
Related
For a comparable postal-automation barcode on a different postal system, use the USPS POSTNET generator.