At work many years ago management decided to put barcode labels on all our process equipment: pressure gauges, flowmeters, level sensors, etc. My pre decessor decided on PDF417 (we can fit quite a bit of data in there) and Ba rTender's software. It's buggy though (or at least the version we got); if we want to print a single label the software truncates the output from tim e to time. It's maddening. But when we print multiple labels from the MS Access database, that works fine. The on-site engineer just waits for me to arrive if he wants new labels printed. Oh, and we got a parallel-port Zeb ra printer of some sort. When the computers were upgraded, tech support sa id the printer would not work with a USB-to-parallel adapter, but I proved them wrong XD