Firmware Downgrade for HP LaserJet 4250?

[John Five]

Johan Bengtsson wrote:
> Here's a Windows NT 4.0 ppd that maybe works:

Johan, many thanks! The Windows NT 4 PPD made the frequent firmware
errors go away!

Anybody got a working NT 4 PPD for the Color LaserJet 3600? : )

BTW, why does no one offer an online database of HP developed NT PPD
files that are formatted to work with CUPS? Do the license restrictions
prevent redistribution of vendor PPD files?