Windows spooler will send printer ready data (pcl in this case) to the
Linux server.
Cups on Linux side will then send the raw data to the printer bypassing
hplip. The only
piece of hplip that will come into play here is the hp usb backend. You
can change it to
system's usb back end (assuming the printer is connected via usb) and
try again. If that works,
then you have a case against hplip. At the time you are setting up the
queue, the transaction is
between Windows spooler and Samba, hplip wouldn't be invoked.
Hope this helps.
Raghu 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Lukas
Vacek
Sent: Tuesday, October 23, 2007 8:55 AM
To: hplip-devel@lists.sourceforge.net
Subject: [HPLIP-Devel] Printing from windows to CUPS server with
HPPhotosmart C3100 series driver

Hello,
I have linux (ubuntu) box with HP Photosmart C3100 and CUPS server. I
tried printing from MS windows (Media Center Edition - it's like XP, I
guess) via IPP (http://host/printers/printer). But it didn't work with
"generic - MS Imagesetter" nor with "HP - HP photosmart 3100".
Moreover, "add printer" dialog froze after selecting driver. In cups'
error_log I could see these messages (debug level) repeating every 2
seconds:

D [18/Oct/2007:20:40:37 +0200] cupsdReadClient: 7 POST /printers/HPc3100
HTTP/1.1 D [18/Oct/2007:20:40:37 +0200] cupsdAuthorize: No
authentication data provided.
D [18/Oct/2007:20:40:37 +0200] Get-Printer-Attributes
http://minerva:631/printers/HPc3100
D [18/Oct/2007:20:40:37 +0200] cupsdProcessIPPRequest: 7 status_code=0
(successful-ok)

after stopping "Print spooler" in windows, "add printer" dialog unfroze
and I could go on with adding printer.

Printing from another cups client to this cups server (same printer)
works fine, printing from same windows client to another printer on same
cups server works fine as well! That's why I think it's a problem in
hplip.

distro: ubuntu gutsy gibbon (beta)
printer: HP Photosmart C3110
Printer Driver: HP PhotoSmart C3100 Foomatic/hpijs (recommended) Device
URI: hp:/usb/Photosmart_C3100_series?serial=CN6C6C52Q304P9
But I found similar problems with different photosmart printers, when
googling for solution.

workaround:
*remove all relevant printers in windows client *reset print spooler
*create new "proxy" printer in cups (set address
http://localhost:631/printers/HPc3100), and driver generic - generate
pdf *in windows add this "proxy" printer (with MS Imagesetter driver)

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