The full software solution provides print, fax and scan functionality. This
software solution is the same solution as the Version 4.0 in-box CD that came
with your HP LaserJet 3050/3052/3055/3390/3392.
This is not a software upgrade for versions of the software prior to 4.0. If a
prior version of the HP LaserJet 3050/3052/3055/3390/3392 software is currently
installed, it must be uninstalled before installing this version.