upgrade firmware on a P3005D printer with only an usb port. : NAME OF THE USB PORT

upgrade firmware on a P3005D printer with only an usb port.
Windows XP.
The documentation says to issue a cmd like copy /b file.rfu <portname>. If I have a parallel port it's lpt1 for ex.
I have no idea about the port name for USB ports. I have tested usb001->004 dot4usb etc. nothing seems connect to the printer.
Thanks for helping me.
gblictAsked:
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and235100Commented:
Look here: http://www.decompile.com/dataflex/tips/usb_printer.htm

This might give you an idea.
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and235100Commented:
Then, possibly if you follow the instructions, you could use the LPT connection to do the upgrade over.
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gblictAuthor Commented:
Thanks. I do not have a lpt port available !
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gblictAuthor Commented:
the dataflex does not seems to work as I'm not able to capture the port. Still I have the question of what's the name of an USB port.
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and235100Commented:
Without a LPT port, you probably will not be able to bind the usb to a port that dos recognises.
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gblictAuthor Commented:
I don't believe this. They are numerous peripherals with only usb ports which need an update of their firmware !
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and235100Commented:
What was the problem in not doing this over parallel?

Can't you just connect this printer up to another computer with parallel - and issue the command over that?
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gblictAuthor Commented:
Of course, I also  can go to a shop bla bla bla. But If I have 50 printers like this this is not possible...
Sorry but your solution is not acceptable.
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and235100Commented:
That is fine.

I know that this isn't for your printer - but they recommend against doing a firmware update over usb...

http://forums1.itrc.hp.com/service/forums/bizsupport/questionanswer.do?threadId=951844&admit=-682735245+1174662062004+28353475
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