The Device Manager shows that USB Printing Support is installed (looking at
the device manager via Devices by Connection shows the USB printing support
connected thru the USB root hub, which looks right to me).
On another computer that has a USB printer, when I look at the ports for
that printer, it says it's connected to a 'virtual' printer port (USB001).
On the computer with the problem, no such printer port exists.
Uninstalling and reinstalling the printer doesn't help. Unplugging and
plugging the USB cable back into the computer doesn't help. Each time, at
the end of the installation process, I get "The specified port is unknown"
and the install fails.
I should finally note that I was suggested (on another forum) to use the
cleanspl XP power tool to help fix a different printer problem I was having
on this computer. It seems it just made it worse.
Help!
With most HP USB printers, you must first run the driver CD and then
when the set up requests it, connect the USB cable to the printer. Do
not connect the printer before installing the HP driver/software.
Thank you,
Aqueeb.
On May 15, 8:21 am, andy9999 <andy9...@discussions.microsoft.com>
wrote:
My remedy was:
Run regedit. Go to
HKEY_LOCAL_MACHINE/System/CurrentControlSet/Control/Print/Monitors. Look for
a USB Monitor entry. Before doing anything else, backup the registry entry by
right clicking on "Monitors" and selecting "Export". Give it a name and
locaction so that you can put it back if you have problems later. If "USB
Monitor" is not there, add it by right-clicking on Monitors, New, Key. Name
the new key "USB Monitor". Once added, right click on the new key and select
New, String Value. Name the new value "Driver". In the right portion of
regedit, right click on the new "Driver" value and select "Modify". Make the
value data "usbmon.dll". If there is an "HPUMON" entry (or the like), delete
it. Disconnect the USB cable to the printer. Run the "scrubber" or clean
utility (Cleanspl) (do not remove USB Monitor - If asked to), reboot the
machine. Reconnect the printer and install the driver software per
manufacturer instuction. This fixed my problem. Good luck and remember to
back up your registery beforehand or create a restore point!
Nobby
Nobby: This worked perfectly for me. Now if only HP would heed this
sound solution, I would not have spent an hour and a half on teh phone
with them trying to get this resolved! Thanks a load...