Ok, I was able to get a minimum requiremenmts sheet from my software supplier and this is what it says about printers.
Laser printer options:
Okidata B710DN
Okidata B420DN
HP LaserJet P2050
HP LaserJet P3010
HP LaserJet P4014
HP LaserJet P4015n
HP LASERJET M601
HP LASERJET M401
All of the above HP printers need option “HP BarCodes and More USB Solution HG281US” to print certain special documents supported by Vision.
Printer must be PCL 5e or higher and have built-in bar code fonts to print certain special documents supported by Vision including Zone Pick Lists.