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Old 07-08-2012, 06:25 PM
Allan Gottlieb
 
Default network scanner not seen by xsane on *some* systems (Solved)

On Sat, Jul 07 2012, walt wrote:

> On 07/07/2012 11:03 AM, Allan Gottlieb wrote:
>> error: Unable to communicate with device (code=12):
>> hp:/net/Officejet_7300_series?zc=HPCC9932
>> error: Unable to print to printer. Please check device and try again.
>
> Make me want to throw your laptop out of my window
>
> You can ping your printer, so I'd want to know what network traffic
> is going/coming from cups/hplip, if any. (I really like ngrep because
> it's absolutely trivial to use, so that's the tool I would use.)
>
> I saw this simple test on the hplip debugging website:
>
>
>
> Determine the IP address of your printer by printing out the network
> configuration page (or if you know it or can determine it in another way)
>
> Run:
>
> $ hp-makeuri <ip-address>
>
> For example:
>
> $ hp-makeuri 192.168.1.1
>
> This will result in a device URI printed to the console. For example:
>
> hp:/net/Officejet_9100_series?ip=192.168.1.1
>
> Copy this device URI
> Open the CUPS UI:
>
> http://localhost:631
>
> (or YasT, etc) and install the printer by pasting the generated URI.
>
> I noticed that your hp:/<etc> URI looks reasonable, but I'd try using
> the ip address directly as an experiment. It's very quick even if
> it's useless

OK lets try (on oldlap, where I tried yesterday and previously today)

1. Remove all printers (via cups)

2. hp-makeuri 192.168.1.50

CUPS URI: hp:/net/Officejet_7300_series?ip=192.168.1.50
SANE URI: hpaio:/net/Officejet_7300_series?ip=192.168.1.50
HP Fax URI: hpfax:/net/Officejet_7300_series?ip=192.168.1.50

3. Install (via cups) hp:/net/Officejet_7300_series?ip=192.168.1.50
Prints fine.

4. xsane hpaio:/net/Officejet_7300_series?ip=192.168.1.50
WORKS !!

5. xsane no arguments
WORKS !!

Let's try ajglap now (main laptop)

1. Remove all printers (via cups).

2. hp-makeuri 192.168.1.50

CUPS URI: hp:/net/Officejet_7300_series?ip=192.168.1.50
SANE URI: hpaio:/net/Officejet_7300_series?ip=192.168.1.50
HP Fax URI: hpfax:/net/Officejet_7300_series?ip=192.168.1.50

3. Install (via cups) hp:/net/Officejet_7300_series?ip=192.168.1.50
Prints fine.

4. xsane hpaio:/net/Officejet_7300_series?ip=192.168.1.50
Works

5. xsane no arguments
Works

Walt and michael, thanks so much.

Walt, At least for me hp-setup is now replaced by hp-makeuri/cups as
the favorite way to reinstall printers after an hplip or cups emerge.

Again thank you. I can remember the last time I could print on both
printers from all three system and could run xsane on all three as well.

allan
 

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