Laserjet 5/5M duplex printing doesn't work

[Guest]

Does anyone know if duplex printing is supported under Vista. I just
installed Vista Home Premium, and although the properties->device settings
window shows that the Duplex Unit is installed, the properties->General shows
'Double-sided: No'

The HP site claims that all its vista drivers are up-to-date and supplied
with the vista CD

 

[Guest]

Don't worry folks, it turns out that the Vista 'Add Printer' function
installed the wrong driver. It installed the Laserjet 5/5M Postscript driver,
when I have a Laserjet 5M. Forcing it to use the correct driver fixed the
problem.

 

[Hugh Wyn Griffith]

The HP site claims that all its vista drivers are up-to-date and supplied 
with the vista CD

Although it does say that the drivers may not be fully featured and that
they are working on full VISTA drivers ...... but not for all devices alas.

Glad you found the problem. They do suggest using PCL 5e software if
necessary.