Installing driver for old HP 4C Scanner

Archived from groups: microsoft.public.windowsxp.device_driver.dev (More info?)

I have an old HP 4C Scanner. It is a SCSI attached
scanner.

I have worked through, and successfully installed
the drivers need to get the SCSI interface to work.
Now, XP can "see" the scanner as new hardware.

However, I can't get XP to install the drivers
for that scanner.

XP correctly reports it finds new hardware, and
correctly reports it to be an HP C2520A (that's
the 4C's actual, full, model number).

The HP software has an HPSCAN.INF file. However,
I can't get XP to "take" it. Even if I specify
the path to the HPSCAN.INF file, XP reports there
are no drivers for my scanner.

If I browse the HPSCAN.INF file, under "[Models]"
there is a line:

%SCSI\HP______C2520A__________3.DeviceDesc% =
C2520A.Scanner,HP______C2520A__________3

So, this _should_ be the right file to allow XP
to install the drivers for the scanner. No???

HP claims these drivers should work under XP, but
isn't supporting them anymore.

Is there some way to "force" XP into associating
this HPSCAN.INF file with the HP C2520A scanner I
am trying to install???