RE: Network printer not working, how to debug?

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On 09/13/2011 02:29 PM, Tim wrote:
> On Tue, 2011-09-13 at 09:54 -0400, R. G. Newbury wrote:
>> >  I have a Brother MFC665CW connected wirelessly. I installed the cups and
>> >  lpd driver rpms from the Brother site, and run a cups service on the
>> >  computers which use that printer.
>> >
>> >  The URI for the printer is:  usb:/dev/usb/lp0
> That's the URI for a*locally*-connected printer, not a
> wirelessly-connected one.
>
> Tim.

As I said, Tim, *why* that URI I have no idea. That printer has NEVER 
been connected with a wire of any sort ehternet OR parallel port. I 
configured it using the front panel, it showed up in the router and I 
could ping it, etc. so I installed the drivers and it worked.

The *only* possible scenario that I can think of, is that the local (on 
the laptop) cupswrapper driver daemon writes *there* and the brother lpr 
driver uses that as a socket and sends the print job on to the printer 
using wifi.
So it appears to be a locally connected printer because the drivers 
obscure the 'unconnectedness' of it.

This same sort of thing shows up when connecting network printers to a 
guest WinXP instance in virtualbox. An HP printer connected through a 
lpd/lpr print server is 'installed' in the WinXP guest as a 'network' 
printer using the 'http://IP-address/pASTHRU', while an HP MFC (using 
hplip) is selected as a LOCAL printer in the WinXP guest install using a 
TCPIP 'port': socket://ip-address/:9100.

I have never tried to install the Brother MFC into the Win guest, but I 
think it would be a 'network' printer.

Geoff

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