USPS barecode help you for barcode based tracking. The vertical lines that are sometimes sprayed at the bottom of a letter or other mailpiece are a barcode.
An optical character reader (OCR) is an automated mail sorting machine at the United States Postal Service® that interprets the information on a letter-size mailpiece and sprays the corresponding ZIP Code™ information onto the piece as a barcode.
Automated mail processing equipment (USPS barcode scanner) can then “read” this barcode. This helps to:
- Process mail more efficiently and accurately.
- Keep the expenses down.
You can help increase speed and accuracy of your mailpiece by writing or typing information correctly so that it can be read and processed. An example of a barcode can be seen at the bottom righthand corner of the envelope displayed below. More information on the envelope standards can be found at http://pe.usps.com/text/qsg300/Q201a.htm#ep1021007.
You may also add your own barcode using:
- Printed postage (such as metered mail or PC Postage products).
- Many word processing programs.
For information on adding the barcode to your own outgoing mail, refer to your postage provider or software documentation.