CRC Algorithm Used With the ~DY Command

Article ID: 80447128



Topic or Information

This document provides information related to the ~DY (Download Objects) ZPL command and the ZB64 CRC.

Applies To

Zebra ZPL compatible printers
Excludes: 2824 Series, 2844 Series, S4M (E53 Firmware Version), 888 DD/TT Series, MZ Series, ZQ110, EM220, EM220II


The CRC calculation for the ~DY command is proprietary. We recommend generating the download file by using the graphic conversion utility available in ZebraNet Bridge or the ZebraDesigner Software. 

The source code for the ZB64 CRC calculation can be obtained by requesting the program from tech support. Signing a Source Code License Agreement will be required.

Note: We have a free SDK for LinkOS compatible printers that offer libraries that do these conversions. See the website for details.